test: add initial e2e test for nachtigall

Reviewed-on: #221
Reviewed-by: Akshay Mankar <axeman@noreply.git.pub.solar>

.editorconfig

@@ -0,0 +1,43 @@
+# Editor configuration, see http://editorconfig.org
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+indent_style = space
+indent_size = 2
+
+# Ignore diffs/patches
+[*.{diff,patch}]
+end_of_line = unset
+insert_final_newline = unset
+trim_trailing_whitespace = unset
+indent_size = unset
+charset = unset
+indent_style = unset
+indent_size = unset
+
+[{.*,secrets}/**]
+end_of_line = false
+insert_final_newline = false
+trim_trailing_whitespace = unset
+charset = unset
+indent_style = unset
+indent_size = unset
+
+[*.rom]
+end_of_line = unset
+insert_final_newline = unset
+trim_trailing_whitespace = unset
+charset = unset
+indent_style = unset
+indent_size = unset
+
+[*.py]
+indent_size = 4
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

.forgejo/workflows/check.yml

@@ -1,54 +1,23 @@
 name: Flake checks
 on: [pull_request]
-env:
-  USER: ci
 
 jobs:
   Check:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     steps:
       - name: Check out repository code
         uses: https://code.forgejo.org/actions/checkout@v4
 
-      - uses: https://github.com/nixbuild/nix-quick-install-action@v27
-        with:
-          load_nixConfig: false
-          nix_conf: |
-            substituters = https://cache.nixos.org/ https://nix-community.cachix.org
-            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=
-            keep-outputs = true
-
-      - name: Calculate flake.lock hash
-        id: flake-lock-hash
+      - name: Check formatting
         run: |
-          echo "hash=$(md5sum flake.lock | awk '{print $1}')" >> $GITHUB_OUTPUT
-
-      - name: Restore and cache Nix store
-        uses: https://github.com/nix-community/cache-nix-action@v4.0.3
-        id: nix-store-cache
-        with:
-          key: cache-${{ runner.os }}-nix-store-${{ steps.flake-lock-hash.outputs.hash }}
-          restore-keys: |
-            cache-${{ runner.os }}-nix-store-
-
-          gc-linux: true
-          gc-max-store-size-linux: 10000000000
-
-          purge-caches: true
-          purge-key: cache-${{ runner.os }}-nix-store-
-          purge-created: true
-          purge-created-max-age: 42
-
-      - name: Prepare cachix
-        uses: https://github.com/cachix/cachix-action@v14
-        with:
-          name: pub-solar
-          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-          useDaemon: false
+          nix --accept-flake-config --access-tokens '' develop --command treefmt --fail-on-change
 
       - name: Run flake checks
         run: |
+          set -exuo pipefail
           # Prevent cache garbage collection by creating GC roots
+          mkdir -p /var/lib/gitea-runner/tankstelle/.local/state/nix/results
+
           for target in $(nix flake show --json --all-systems | jq '
             .["nixosConfigurations"] |
             to_entries[] |
@@ -56,16 +25,7 @@ jobs:
             ' | tr -d '"'
           ); do
             nix --print-build-logs --verbose --accept-flake-config --access-tokens '' \
-              build --out-link ./result-$target ".#nixosConfigurations.${target}.config.system.build.toplevel"
+              build --out-link /var/lib/gitea-runner/tankstelle/.local/state/nix/results/"$target" ".#nixosConfigurations.${target}.config.system.build.toplevel"
           done
 
           nix --print-build-logs --verbose --accept-flake-config --access-tokens '' flake check
-
-          # Add GC roots for flake inputs, too
-          # https://github.com/NixOS/nix/issues/4250#issuecomment-1146878407
-          mkdir --parents "$NIX_USER_PROFILE_DIR"
-          gc_root_prefix="$NIX_USER_PROFILE_DIR"/infra-flake-
-          echo "Adding gcroots flake inputs with prefix $gc_root_prefix ..."
-          nix flake archive --json 2>/dev/null | jq --raw-output '.inputs | to_entries[] | "ln --force --symbolic --no-target-directory "+.value.path+" \"'"$gc_root_prefix"'"+.key+"\""' | while read -r line; do
-            eval "$line"
-          done

.git-blame-ignore-revs

@@ -1,2 +1,4 @@
+# Apply treewide formatting with treefmt
+2ca0bd7c3e743e699edb6e9c09d48b7c9106a64d
 # Apply treewide formatting with nixpkgs-fmt
 815033c764660e1468b1564a02570bad0f84f77a

.gitignore

@@ -4,3 +4,4 @@
 .terraform
 *.plan
 result
+results

CONTRIBUTING.md

@@ -0,0 +1,35 @@
+# Contributing guide
+
+Things you'll need:
+
+- To create [Pull Requests](https://forgejo.org/docs/latest/user/pull-requests-and-git-flow/), you will need to register your [pub.solar ID](https://auth.pub.solar) first.
+- For small changes, e.g. to documentation, you can directly edit files in the browser.
+
+### Getting a development shell
+
+First, get a local copy of this repository:
+
+```
+git clone https://git.pub.solar/pub-solar/infra.git
+cd infra
+```
+
+then, install [the package manager nix](https://nixos.org/download).
+
+Finally, run:
+
+```
+nix develop
+```
+
+This will install a development shell (devshell) with all required tools.
+
+### Final checks before creating a Pull Request
+
+Before creating a pull request, it's recommended to check the formatting:
+
+```
+treefmt
+```
+
+If you are a terminal-lover, the [AGit alternative](https://forgejo.org/docs/latest/user/agit-support/) to the web based Pull Request workflow might be interesting.

LICENSE.md

@@ -0,0 +1,660 @@
+### GNU AFFERO GENERAL PUBLIC LICENSE
+
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+### Preamble
+
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+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
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+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
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+When we speak of free software, we are referring to freedom, not
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+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+#### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+#### 13. Remote Network Interaction; Use with the GNU General Public License.
+
+Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your
+version supports such interaction) an opportunity to receive the
+Corresponding Source of your version by providing access to the
+Corresponding Source from a network server at no charge, through some
+standard or customary means of facilitating copying of software. This
+Corresponding Source shall include the Corresponding Source for any
+work covered by version 3 of the GNU General Public License that is
+incorporated pursuant to the following paragraph.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+#### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU Affero General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever
+published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+#### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+#### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+#### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+### How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU Affero General Public License as
+        published by the Free Software Foundation, either version 3 of the
+        License, or (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU Affero General Public License for more details.
+
+        You should have received a copy of the GNU Affero General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for
+the specific requirements.
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU AGPL, see <https://www.gnu.org/licenses/>.

README.md

@@ -6,6 +6,6 @@ The architecture we are working towards is a vast simplification of what it was
 
 ## Contributing
 
-If you'd like to contribute, it makes sense to talk to the crew on Matrix via [#hakken](https://matrix.to/#/#hakken:pub.solar?via=chat.pub.solar). We can help figuring out how things work and can make sure your ideas fit the pub.solar philosophy. Of course [popping a pull request](https://docs.gitea.com/next/usage/pull-request#creating-a-pull-request) is always celebrated.
+If you'd like to contribute, it makes sense to talk to the crew on Matrix via [#hakken](https://matrix.to/#/#hakken:pub.solar?via=chat.pub.solar). We can help figuring out how things work and can make sure your ideas fit the pub.solar philosophy. Of course [popping a pull request](https://forgejo.org/docs/latest/user/pull-requests-and-git-flow/) is always celebrated.
 
-To start, see [how to get a development shell](./docs/development-shell.md).
+To start, check our [contributing guide](./CONTRIBUTING.md).

docs/administrative-access.md

@@ -14,7 +14,7 @@ People with admin access to the infrastructure are added to [`logins/admins.nix`
                 publicKey = <pubkey-string>;
                 allowedIPs = [ "10.7.6.<ip-address>/32" "fd00:fae:fae:fae:fae:<ip-address>::/96" ];
             }
-        }];
+        ];
 
         secretEncryptionKeys = {
             <name> = <encryption-key-string>;
@@ -30,6 +30,68 @@ SSH is not reachable from the open internet. Instead, SSH Port 22 is protected b
 1. **SSH Public key**: self-explanatory. Add your public key to your user attrset under `sshPubKeys`.
 2. **Wireguard device**: each wireguard device has two parts: the public key and the IP addresses it should have in the wireguard network. The pub.solar wireguard network is spaced under `10.7.6.0/24` and `fd00:fae:fae:fae:fae::/80`. To add your device, it's best to choose a free number between 200 and 255 and use that in both the ipv4 and ipv6 ranges: `10.7.6.<ip-address>/32` `fd00:fae:fae:fae:fae:<ip-address>::/96`. For more information on how to generate keypairs, see [the NixOS Wireguard docs](https://nixos.wiki/wiki/WireGuard#Generate_keypair).
 
+One can access our hosts using this domain scheme:
+
+```
+ssh barkeeper@<hostname>.wg.pub.solar
+```
+
+So, for example for `nachtigall`:
+
+```
+ssh barkeeper@nachtigall.wg.pub.solar
+```
+
+Example NixOS snippet for WireGuard client config
+
+```
+{
+  networking = {
+    wireguard.enable = true;
+    wg-quick.interfaces = {
+      wg-pub-solar = {
+        address = ["10.7.6.201/32"];
+        address = ["10.7.6.201/32" "fd00:fae:fae:fae:fae:201::/96"];
+        privateKeyFile = "/etc/wireguard/wg-pub-solar.privatekey";
+
+        peers = [
+          { # nachtigall.pub.solar
+            publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
+            allowedIPs = [ "10.7.6.1/32" "fd00:fae:fae:fae:fae:1::/96" ];
+            endpoint = "[2a01:4f8:172:1c25::1]:51820";
+            # Use this endpoint in IPv4 only networks
+            #endpoint = "138.201.80.102:51820";
+            persistentKeepalive = 15;
+          }
+          { # flora-6.pub.solar
+            publicKey = "jtSR5G2P/nm9s8WrVc26Xc/SQLupRxyXE+5eIeqlsTU=";
+            allowedIPs = [ "10.7.6.2/32" "fd00:fae:fae:fae:fae:2::/96" ];
+            endpoint = "80.71.153.210:51820";
+            persistentKeepalive = 15;
+          }
+          { # metronom.pub.solar
+            publicKey = "zOSYGO7MfnOOUnzaTcWiKRQM0qqxR3JQrwx/gtEtHmo=";
+            allowedIPs = [ "10.7.6.3/32" "fd00:fae:fae:fae:fae:3::/96" ];
+            #endpoint = "[2a01:4f8:c2c:7082::]:51820";
+            # Use this endpoint in IPv4 only networks
+            endpoint = "49.13.236.167:51820";
+            persistentKeepalive = 15;
+          }
+          { # tankstelle.pub.solar
+            publicKey = "iRTlY1lB7nPXf2eXzX8ZZDkfMmXyGjff5/joccbP8Cg=";
+            allowedIPs = [ "10.7.6.4/32" "fd00:fae:fae:fae:fae:4::/96" ];
+            endpoint = "[2001:4d88:1ffa:26::5]:51820";
+            # Use this endpoint in IPv4 only networks
+            #endpoint = "80.244.242.5:51820";
+            persistentKeepalive = 15;
+          }
+        ];
+      };
+    };
+  };
+}
+```
+
 # Secret encryption
 
 Deployment secrets are added to the repository in encrypted files. To be able to work with these encrypted files, your public key(s) will have to be added to your user attrset under `secretEncryptionKeys`.

docs/automated-account-deletion.md

@@ -0,0 +1,14 @@
+# Automated account deletion
+
+Per GDPR legislation, accounts should be automatically deleted after a period of inactivity. We discern between two different types of accounts:
+
+1. Without verified email: should be deleted after 30 days without being activated
+2. With verified email: should be deleted after 2 years of inactivity
+
+Some services hold on to a session for a very long time. We'll have to query their APIs to see if the account is still in use:
+
+* Matrix via the admin api: https://matrix-org.github.io/synapse/v1.48/admin_api/user_admin_api.html#query-current-sessions-for-a-user
+* Mastodon via the admin api: https://docs.joinmastodon.org/methods/admin/accounts/#200-ok
+* Nextcloud only gives the last login, not the last active time like a sync via `nextcloud-occ user:lastseen`
+* Keycloak 
+* We can ignore Forgejo, since the sessions there are valid for a maximum of one year, regardless of how they got created

docs/deletion-request.md

@@ -1,13 +1,16 @@
 # Process for handling a deletion request
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
-sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --user ops
+Required:
+
+- auth.pub.solar `admin-cli` service user credentials
+- [SSH access to host `nachtigall`](./administrative-access.md#ssh-access)
+
+Run each of the following after SSH'ing to `nachtigall`:
+
+```
+sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --client admin-cli
 
 # Take note of user id in response from following command
 sudo --user keycloak kcadm.sh get --config /tmp/kcadm.config users --realm pub.solar --query email=<email-address>
@@ -20,42 +23,38 @@ sudo --user keycloak kcadm.sh update --config /tmp/kcadm.config users/2ec6f173-3
 
 Docs: https://www.keycloak.org/docs/latest/server_admin/index.html#updating-a-user
 
-
 ### Nextcloud
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 nextcloud-occ user:delete <username>
 ```
 
 Docs: https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/occ_command.html#user-commands-label
 
-
 ### Mastodon
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 sudo -u mastodon mastodon-tootctl accounts delete --email <mail-address>
 ```
 
 Docs: https://docs.joinmastodon.org/admin/tootctl/#accounts-delete
 
-
 ### Forgejo
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 sudo -u gitea gitea admin user delete --config /var/lib/forgejo/custom/conf/app.ini --purge --email <mail-address>
 ```
 
 Docs: https://forgejo.org/docs/latest/admin/command-line/#delete
 
-
 ### Matrix
+
 ```
-ssh bartender@matrix.pub.solar -p 2020
 curl --header "Authorization: Bearer <admin-access-token>" --request POST http://172.18.0.3:8008/_synapse/admin/v1/deactivate/@<username>:pub.solar --data '{"erase": true}'
 ```
 
 Docs: https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#deactivate-account
 
-
 ### OpenBikeSensor
+
 Not implemented, see: https://github.com/openbikesensor/portal/issues/95

docs/deploying.md

@@ -8,13 +8,21 @@ To deploy, make sure you have a [working development shell](./development-shell.
 Then, run `deploy-rs` with the hostname of the server you want to deploy:
 
 For nachtigall.pub.solar:
+
 ```
-deploy --targets '.#nachtigall' --magic-rollback false --auto-rollback false
+deploy --targets '.#nachtigall' --magic-rollback false --auto-rollback false --keep-result --result-path ./results
 ```
 
 For flora-6.pub.solar:
+
 ```
-deploy --targets '.#flora-6' --magic-rollback false --auto-rollback false
+deploy --targets '.#flora-6' --magic-rollback false --auto-rollback false --keep-result --result-path ./results
+```
+
+For metronom.pub.solar (aarch64-linux):
+
+```
+deploy --targets '.#metronom' --magic-rollback false --auto-rollback false --keep-result --result-path ./results --remote-build
 ```
 
 Usually we skip all rollback functionality, but if you want to deploy a change
@@ -26,7 +34,13 @@ deployment, add the flag `--skip-checks` at the end of the command.
 `--dry-activate` can be used to only put all files in place without switching,
 to enable switching to the new config quickly at a later moment.
 
+We use `--keep-result --result-path ./results` to keep the last `result`
+symlink of each `deploy` from being garbage collected. That way, we keep builds
+cached in the Nix store. This is optional and both flags can be removed if disk
+space is a scarce resource on your machine.
+
 You'll need to have SSH Access to the boxes to be able to run `deploy`.
 
 ### Getting SSH access
+
 See [administrative-access.md](./administrative-access.md).

docs/development-shell.md

@@ -1,18 +0,0 @@
-# Getting a development shell
-
-Clone this repository:
-
-```
-git clone https://git.pub.solar/pub-solar/infra.git
-cd infra
-```
-
-then, install [the package manager nix](https://nixos.org/download).
-
-Finally, run:
-
-```
-nix develop
-```
-
-This will install a development shell (devshell) with all required tools.

docs/dns.md

@@ -15,12 +15,15 @@ Please follow https://docs.greenbaum.cloud/en/devops/triton-cli.html for the det
 
 You will need to setup the following [namecheap API credentials](https://www.namecheap.com/support/api/intro),
 look for "namecheap API key" in the pub.solar Keepass database.
+
 ```
 NAMECHEAP_API_KEY
 NAMECHEAP_API_USER
 NAMECHEAP_USER_NAME
 ```
+
 You will probably also need to add your external IP to the [API allow list](https://ap.www.namecheap.com/settings/tools/apiaccess/whitelisted-ips).
+
 ```
 dig -4 ip @dns.toys
 ```
@@ -35,16 +38,19 @@ terraform init
 ```
 
 Make your changes, e.g. in `dns.tf`.
+
 ```
 $EDITOR dns.tf
 ```
 
 Plan your changes using:
+
 ```
 terraform plan -out pub-solar-infra.plan
 ```
 
 After verification, apply your changes with:
+
 ```
 terraform apply "pub-solar-infra.plan"
 ```
@@ -52,7 +58,9 @@ terraform apply "pub-solar-infra.plan"
 ### Useful links
 
 We use the Manta remote backend to save the terraform state for collaboration.
+
 - https://www.terraform.io/language/v1.2.x/settings/backends/manta
 
 Namecheap Terraform provider docs:
+
 - https://registry.terraform.io/providers/namecheap/namecheap/latest/docs

docs/keycloak/delete-unverified-accounts.md

@@ -0,0 +1,79 @@
+# Delete accounts without verified email address
+
+### Keycloak
+
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run following after SSH'ing to `nachtigall`.
+
+Credentials for the following command are in keepass. Create a keycloak
+config/credentials file at `/tmp/kcadm.config`:
+
+```
+sudo --user keycloak kcadm.sh config credentials \
+  --config /tmp/kcadm.config \
+  --server https://auth.pub.solar \
+  --realm pub.solar \
+  --client admin-cli
+```
+
+Get list of accounts without a verified email address:
+
+```
+sudo --user keycloak kcadm.sh get \
+  --config /tmp/kcadm.config \
+  users \
+  --realm pub.solar \
+  --query emailVerified=false \
+  > /tmp/keycloak-unverified-accounts
+```
+
+Review list of accounts, especially check `createdTimestamp` if any accounts
+were created in the past 2 days. If so, delete those from the
+`/tmp/keycloak-unverified-accounts` file.
+
+```
+createdTimestamps=( $( nix run nixpkgs#jq -- -r '.[].createdTimestamp' < /tmp/keycloak-unverified-accounts ) )
+
+# timestamps are in nanoseconds since epoch, so we need to strip the last three digits
+for timestamp in ${createdTimestamps[@]}; do date --date="@${timestamp::-3}"; done
+
+vim /tmp/keycloak-unverified-accounts
+```
+
+Check how many accounts are going to be deleted:
+
+```
+jq -r '.[].id' < /tmp/keycloak-unverified-accounts | wc -l
+```
+
+```
+jq -r '.[].id' < /tmp/keycloak-unverified-accounts > /tmp/keycloak-unverified-account-ids
+```
+
+Final check before deletion (dry-run):
+
+```
+for id in $(cat /tmp/keycloak-unverified-account-ids)
+  do
+    echo sudo --user keycloak kcadm.sh delete \
+      --config /tmp/kcadm.config \
+      users/$id \
+      --realm pub.solar
+  done
+```
+
+THIS WILL DELETE ACCOUNTS:
+
+```
+for id in $(cat /tmp/keycloak-unverified-account-ids)
+  do
+    sudo --user keycloak kcadm.sh delete \
+      --config /tmp/kcadm.config \
+      users/$id \
+      --realm pub.solar
+  done
+```

docs/keycloak/keycloak-email-list.md

@@ -1,12 +1,15 @@
 # Process for getting a list of email addresses of all keycloak users
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run following after SSH'ing to `nachtigall`:
+
+```
 sudo --user keycloak kcadm.sh get users \
   -r pub.solar \
   --offset 0 \

docs/keycloak/keycloak-reset-user-password.md

@@ -1,15 +1,18 @@
 # Process for resetting keycloak user passwords
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run the following after SSH'ing to `nachtigall`:
+
+```
 mkdir /tmp/keycloak-credential-reset
 
-sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --user ops
+sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --client admin-cli
 
 sudo --user keycloak kcadm.sh get --config /tmp/kcadm.config users --realm pub.solar | jq --raw-output '.[] | .id' > /tmp/keycloak-credential-reset/all-uuids
 

docs/keycloak/keycloak-update-realm.md

@@ -1,12 +1,15 @@
 # Process for updating a keycloak realm via CLI
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run the following after SSH'ing to `nachtigall`:
+
+```
 sudo -u keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm master --user admin
 
 sudo -u keycloak kcadm.sh get --config /tmp/kcadm.config realms/pub.solar

docs/mail.md

@@ -0,0 +1,4 @@
+### Mail
+
+mail.pub.solar aka metronom.pub.solar hosts our internal mails.
+This is a small Hetzner cloud instance on https://console.hetzner.cloud.

docs/mediawiki-updates.md

@@ -4,28 +4,27 @@ See the [mediawiki-oidc-docker repository](https://git.pub.solar/pub-solar/media
 for instructions on updating our customized mediawiki docker image.
 
 To deploy a new docker image to `nachtigall`, first bump the mediawiki version
-of the docker image tag in `hosts/nachtigall/apps/mediawiki.nix` (search for
+of the docker image tag in `modules/mediawiki/default.nix` (search for
 `image`).
 
 Next, push your changes to https://git.pub.solar and get them reviewed and
 approved.
 
 After approval, create a fresh backup of the database and deploy the changes to
-`nachtigall`:
+`nachtigall`. Run the following after [SSH'ing to `nachtigall`](./administrative-access.md#ssh-access):
 
 ```
-ssh barkeeper@nachtigall.pub.solar
 sudo -u postgres pg_dump --create -Fc mediawiki > mediawiki-db-$(date +%F).dump
 exit
 ```
 
 ```
-deploy --targets '.#nachtigall'
+deploy --targets '.#nachtigall' --magic-rollback false --auto-rollback false --keep-result --result-path ./results
 ```
 
-Then, finalize the update by running the database migration script:
+Then, finalize the update by running the database migration script (in a [SSH](./administrative-access.md#ssh-access) shell on `nachtigall`):
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 docker exec -it mediawiki bash
 php maintenance/run.php update.php
 ```

docs/obs-portal.md

@@ -0,0 +1,32 @@
+# OpenBikeSensor Portal
+
+## Docker Containers
+
+- portal
+- worker
+- db
+
+## Run database migrations
+
+After an upgrade it is sometimes necessary to run database migrations or regenerate tiles.
+
+```
+docker exec -ti obs-portal tools/upgrade.py
+```
+
+## Dump database
+
+Save database dump to `dump.sql` in the current working directory.
+
+```
+docker exec -ti --user postgres obs-portal-db pg_dump obs > dump.sql
+```
+
+## Restore database
+
+Load database dump from `dump.sql` file.
+`obs` database needs to exist before importing the dump.
+
+```
+cat dump.sql | docker exec -ti --user postgres obs-portal-db psql obs
+```

docs/reverting-version.md

@@ -1,3 +1 @@
 # Reverting to an old version
-
-

docs/unlocking-root.md

@@ -1,9 +0,0 @@
-# Unlocking the root partition on boot
-
-After a boot, the encrypted root partition will have to be unlocked. This is done by accessing the server via SSH with user root on port 2222.
-
-```
-ssh root@nachtigall.pub.solar -p2222
-```
-
- After connecting, paste the crypt passphrase you can find in the shared keepass. This will disconnect the SSH session right away and the server will keep booting into stage 2.

docs/unlocking-zfs-pool.md

@@ -0,0 +1,20 @@
+# Unlocking the ZFS pool on boot
+
+After a reboot, the encrypted ZFS pool will have to be unlocked. This is done by
+accessing the server via SSH as user `root` on port 2222.
+
+Nachtigall:
+
+```
+ssh -4 root@nachtigall.pub.solar -p2222
+```
+
+Metronom:
+
+```
+ssh -4 root@metronom.pub.solar -p2222
+```
+
+After connecting, paste the encryption passphrase you can find in the shared
+keepass. This will disconnect the SSH session immediately and the server will
+continue to boot into stage 2.

flake.lock

@@ -14,11 +14,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1712079060,
-        "narHash": "sha256-/JdiT9t+zzjChc5qQiF+jhrVhRt8figYH29rZO7pFe4=",
+        "lastModified": 1723293904,
+        "narHash": "sha256-b+uqzj+Wa6xgMS9aNbX4I+sXeb5biPDi39VgvSFqFvU=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "1381a759b205dff7a6818733118d02253340fd5e",
+        "rev": "f6291c5935fdc4e0bef208cfc0dcab7e3f7a1c41",
         "type": "github"
       },
       "original": {
@@ -27,6 +27,22 @@
         "type": "github"
       }
     },
+    "blobs": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1604995301,
+        "narHash": "sha256-wcLzgLec6SGJA8fx1OEN1yV/Py5b+U5iyYpksUY/yLw=",
+        "owner": "simple-nixos-mailserver",
+        "repo": "blobs",
+        "rev": "2cccdf1ca48316f2cfd1c9a0017e8de5a7156265",
+        "type": "gitlab"
+      },
+      "original": {
+        "owner": "simple-nixos-mailserver",
+        "repo": "blobs",
+        "type": "gitlab"
+      }
+    },
     "deploy-rs": {
       "inputs": {
         "flake-compat": "flake-compat",
@@ -36,11 +52,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1711973905,
-        "narHash": "sha256-UFKME/N1pbUtn+2Aqnk+agUt8CekbpuqwzljivfIme8=",
+        "lastModified": 1718194053,
+        "narHash": "sha256-FaGrf7qwZ99ehPJCAwgvNY5sLCqQ3GDiE/6uLhxxwSY=",
         "owner": "serokell",
         "repo": "deploy-rs",
-        "rev": "88b3059b020da69cbe16526b8d639bd5e0b51c8b",
+        "rev": "3867348fa92bc892eba5d9ddb2d7a97b9e127a8a",
         "type": "github"
       },
       "original": {
@@ -52,6 +68,25 @@
     "devshell": {
       "inputs": {
         "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1713532798,
+        "narHash": "sha256-wtBhsdMJA3Wa32Wtm1eeo84GejtI43pMrFrmwLXrsEc=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "12e914740a25ea1891ec619bb53cf5e6ca922e40",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "devshell_2": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
         "nixpkgs": [
           "keycloak-theme-pub-solar",
           "nixpkgs"
@@ -71,14 +106,38 @@
         "type": "github"
       }
     },
+    "element-stickers": {
+      "inputs": {
+        "maunium-stickerpicker": [
+          "maunium-stickerpicker"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1714430716,
+        "narHash": "sha256-+WmgGbONe5u2wpvkUC5wNhYnrE6eziIv3Liq4pv7jro=",
+        "ref": "main",
+        "rev": "85716a9e30fb6fae47336ed0cae3d1425c80f17c",
+        "revCount": 6,
+        "type": "git",
+        "url": "https://git.pub.solar/pub-solar/maunium-stickerpicker-nix"
+      },
+      "original": {
+        "ref": "main",
+        "type": "git",
+        "url": "https://git.pub.solar/pub-solar/maunium-stickerpicker-nix"
+      }
+    },
     "element-themes": {
       "flake": false,
       "locked": {
-        "lastModified": 1707755689,
-        "narHash": "sha256-pMwrpZwLp7tw0nBbz/ENVJ2LoN9jIxEfjcq7OXoiKEw=",
+        "lastModified": 1718859621,
+        "narHash": "sha256-ZOOm6UFGNSkGrdwbG5saLAYgAPYJ7E80ogA40CaW+E4=",
         "owner": "aaronraimist",
         "repo": "element-themes",
-        "rev": "2368b58c16d2c4aabb82a245f036d228cbb6e5f5",
+        "rev": "3bc82abc3dd468dabc933f0f9d0b443ed97554a6",
         "type": "github"
       },
       "original": {
@@ -104,10 +163,44 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
       },
+      "locked": {
+        "lastModified": 1722555600,
+        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib_2"
+      },
       "locked": {
         "lastModified": 1712014858,
         "narHash": "sha256-sB4SWl2lX95bExY2gMFG5HIzvva5AVMJd4Igm+GpZNw=",
@@ -144,6 +237,24 @@
       "inputs": {
         "systems": "systems_4"
       },
+      "locked": {
+        "lastModified": 1701680307,
+        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_3": {
+      "inputs": {
+        "systems": "systems_5"
+      },
       "locked": {
         "lastModified": 1705309234,
         "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
@@ -158,7 +269,7 @@
         "type": "github"
       }
     },
-    "flake-utils_3": {
+    "flake-utils_4": {
       "locked": {
         "lastModified": 1653893745,
         "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
@@ -180,24 +291,47 @@
         ]
       },
       "locked": {
-        "lastModified": 1714043624,
-        "narHash": "sha256-Xn2r0Jv95TswvPlvamCC46wwNo8ALjRCMBJbGykdhcM=",
+        "lastModified": 1720042825,
+        "narHash": "sha256-A0vrUB6x82/jvf17qPCpxaM+ulJnD8YZwH9Ci0BsAzE=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "86853e31dc1b62c6eeed11c667e8cdd0285d4411",
+        "rev": "e1391fb22e18a36f57e6999c7a9f966dc80ac073",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-23.11",
+        "ref": "release-24.05",
         "repo": "home-manager",
         "type": "github"
       }
     },
-    "keycloak-theme-pub-solar": {
+    "keycloak-event-listener": {
       "inputs": {
         "devshell": "devshell",
-        "flake-utils": "flake-utils_2",
+        "flake-parts": "flake-parts_2",
+        "nixpkgs": [
+          "unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1714263025,
+        "narHash": "sha256-Uesrz49RwbG7sHgiHkkb5o364BN9WbuwroWxVXdcfvo=",
+        "ref": "main",
+        "rev": "fb569f474698b5711c208fd5b4b5880d64863587",
+        "revCount": 2,
+        "type": "git",
+        "url": "https://git.pub.solar/pub-solar/keycloak-event-listener"
+      },
+      "original": {
+        "ref": "main",
+        "type": "git",
+        "url": "https://git.pub.solar/pub-solar/keycloak-event-listener"
+      }
+    },
+    "keycloak-theme-pub-solar": {
+      "inputs": {
+        "devshell": "devshell_2",
+        "flake-utils": "flake-utils_3",
         "nixpkgs": [
           "nixpkgs"
         ]
@@ -217,6 +351,25 @@
         "url": "https://git.pub.solar/pub-solar/keycloak-theme"
       }
     },
+    "maunium-stickerpicker": {
+      "flake": false,
+      "locked": {
+        "dir": "web",
+        "lastModified": 1718796561,
+        "narHash": "sha256-RKAAHve17lrJokgAPkM2k/E+f9djencwwg3Xcd70Yfw=",
+        "owner": "maunium",
+        "repo": "stickerpicker",
+        "rev": "333567f481e60443360aa7199d481e1a45b3a523",
+        "type": "github"
+      },
+      "original": {
+        "dir": "web",
+        "owner": "maunium",
+        "ref": "master",
+        "repo": "stickerpicker",
+        "type": "github"
+      }
+    },
     "nix-darwin": {
       "inputs": {
         "nixpkgs": [
@@ -224,11 +377,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1713946171,
-        "narHash": "sha256-lc75rgRQLdp4Dzogv5cfqOg6qYc5Rp83oedF2t0kDp8=",
+        "lastModified": 1724561770,
+        "narHash": "sha256-zv8C9RNa86CIpyHwPIVO/k+5TfM8ZbjGwOOpTe1grls=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "230a197063de9287128e2c68a7a4b0cd7d0b50a7",
+        "rev": "ac5694a0b855a981e81b4d9f14052e3ff46ca39e",
         "type": "github"
       },
       "original": {
@@ -240,11 +393,11 @@
     },
     "nixos-flake": {
       "locked": {
-        "lastModified": 1711376798,
-        "narHash": "sha256-37wawZGSX/dD1rn7TwFJhUdpozC2VPEQXetpfpK/D+w=",
+        "lastModified": 1721140942,
+        "narHash": "sha256-iEqZGdnkG+Hm0jZhS59NJwEyB6z9caVnudWPGHZ/FAE=",
         "owner": "srid",
         "repo": "nixos-flake",
-        "rev": "7b19503e7f8c7cc0884fc2fbd669c0cc2e05aef5",
+        "rev": "5734c1d9a5fe0bc8e8beaf389ad6227392ca0108",
         "type": "github"
       },
       "original": {
@@ -255,16 +408,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1713995372,
-        "narHash": "sha256-fFE3M0vCoiSwCX02z8VF58jXFRj9enYUSTqjyHAjrds=",
-        "owner": "nixos",
+        "lastModified": 1704161960,
+        "narHash": "sha256-QGua89Pmq+FBAro8NriTuoO/wNaUtugt29/qqA8zeeM=",
+        "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "dd37924974b9202f8226ed5d74a252a9785aedf8",
+        "rev": "63143ac2c9186be6d9da6035fa22620018c85932",
         "type": "github"
       },
       "original": {
-        "owner": "nixos",
-        "ref": "nixos-23.11",
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -286,6 +439,18 @@
       }
     },
     "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1722555339,
+        "narHash": "sha256-uFf2QeW7eAHlYXuDktm9c25OxOyCoUOQmh5SZ9amE5Q=",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/a5d394176e64ab29c852d03346c1fc9b0b7d33eb.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/a5d394176e64ab29c852d03346c1fc9b0b7d33eb.tar.gz"
+      }
+    },
+    "nixpkgs-lib_2": {
       "locked": {
         "dir": "lib",
         "lastModified": 1711703276,
@@ -303,22 +468,69 @@
         "type": "github"
       }
     },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1724316499,
+        "narHash": "sha256-Qb9MhKBUTCfWg/wqqaxt89Xfi6qTD3XpTzQ9eXi3JmE=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "797f7dc49e0bc7fab4b57c021cdf68f595e47841",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "agenix": "agenix",
         "deploy-rs": "deploy-rs",
+        "element-stickers": "element-stickers",
         "element-themes": "element-themes",
         "flake-parts": "flake-parts",
         "home-manager": "home-manager",
+        "keycloak-event-listener": "keycloak-event-listener",
         "keycloak-theme-pub-solar": "keycloak-theme-pub-solar",
+        "maunium-stickerpicker": "maunium-stickerpicker",
         "nix-darwin": "nix-darwin",
         "nixos-flake": "nixos-flake",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_2",
         "nixpkgs-2205": "nixpkgs-2205",
+        "simple-nixos-mailserver": "simple-nixos-mailserver",
         "triton-vmtools": "triton-vmtools",
         "unstable": "unstable"
       }
     },
+    "simple-nixos-mailserver": {
+      "inputs": {
+        "blobs": "blobs",
+        "flake-compat": "flake-compat_2",
+        "nixpkgs": [
+          "unstable"
+        ],
+        "nixpkgs-24_05": [
+          "nixpkgs"
+        ],
+        "utils": "utils_2"
+      },
+      "locked": {
+        "lastModified": 1718084203,
+        "narHash": "sha256-Cx1xoVfSMv1XDLgKg08CUd1EoTYWB45VmB9XIQzhmzI=",
+        "owner": "simple-nixos-mailserver",
+        "repo": "nixos-mailserver",
+        "rev": "29916981e7b3b5782dc5085ad18490113f8ff63b",
+        "type": "gitlab"
+      },
+      "original": {
+        "owner": "simple-nixos-mailserver",
+        "ref": "nixos-24.05",
+        "repo": "nixos-mailserver",
+        "type": "gitlab"
+      }
+    },
     "systems": {
       "locked": {
         "lastModified": 1681028828,
@@ -379,9 +591,39 @@
         "type": "github"
       }
     },
+    "systems_5": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_6": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "triton-vmtools": {
       "inputs": {
-        "flake-utils": "flake-utils_3",
+        "flake-utils": "flake-utils_4",
         "nixpkgs": [
           "nixpkgs"
         ]
@@ -405,11 +647,11 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1713895582,
-        "narHash": "sha256-cfh1hi+6muQMbi9acOlju3V1gl8BEaZBXBR9jQfQi4U=",
+        "lastModified": 1724224976,
+        "narHash": "sha256-Z/ELQhrSd7bMzTO8r7NZgi9g5emh+aRKoCdaAv5fiO0=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "572af610f6151fd41c212f897c71f7056e3fb518",
+        "rev": "c374d94f1536013ca8e92341b540eba4c22f9c62",
         "type": "github"
       },
       "original": {
@@ -436,6 +678,24 @@
         "repo": "flake-utils",
         "type": "github"
       }
+    },
+    "utils_2": {
+      "inputs": {
+        "systems": "systems_6"
+      },
+      "locked": {
+        "lastModified": 1709126324,
+        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -1,7 +1,7 @@
 {
   inputs = {
     # Track channels with commits tested and built by hydra
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.05";
     unstable.url = "github:nixos/nixpkgs/nixos-unstable";
 
     nixpkgs-2205.url = "github:nixos/nixpkgs/nixos-22.05";
@@ -9,7 +9,7 @@
     nix-darwin.url = "github:lnl7/nix-darwin/master";
     nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
 
-    home-manager.url = "github:nix-community/home-manager/release-23.11";
+    home-manager.url = "github:nix-community/home-manager/release-24.05";
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
 
     flake-parts.url = "github:hercules-ci/flake-parts";
@@ -26,74 +26,120 @@
     keycloak-theme-pub-solar.url = "git+https://git.pub.solar/pub-solar/keycloak-theme?ref=main";
     keycloak-theme-pub-solar.inputs.nixpkgs.follows = "nixpkgs";
 
+    keycloak-event-listener.url = "git+https://git.pub.solar/pub-solar/keycloak-event-listener?ref=main";
+    keycloak-event-listener.inputs.nixpkgs.follows = "unstable";
+
     triton-vmtools.url = "git+https://git.pub.solar/pub-solar/infra-vintage?ref=main&dir=vmtools";
     triton-vmtools.inputs.nixpkgs.follows = "nixpkgs";
 
     element-themes.url = "github:aaronraimist/element-themes/master";
     element-themes.flake = false;
+
+    maunium-stickerpicker.url = "github:maunium/stickerpicker?ref=master&dir=web";
+    maunium-stickerpicker.flake = false;
+
+    element-stickers.url = "git+https://git.pub.solar/pub-solar/maunium-stickerpicker-nix?ref=main";
+    element-stickers.inputs.maunium-stickerpicker.follows = "maunium-stickerpicker";
+    element-stickers.inputs.nixpkgs.follows = "nixpkgs";
+
+    simple-nixos-mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-24.05";
+    simple-nixos-mailserver.inputs.nixpkgs-24_05.follows = "nixpkgs";
+    simple-nixos-mailserver.inputs.nixpkgs.follows = "unstable";
   };
 
-  outputs = inputs@{ self, ... }:
+  outputs =
+    inputs@{ self, ... }:
     inputs.flake-parts.lib.mkFlake { inherit inputs; } {
-      systems = [ "x86_64-linux" "aarch64-linux" ];
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
 
       imports = [
         inputs.nixos-flake.flakeModule
         ./logins
         ./lib
         ./overlays
-        ./modules
         ./hosts
       ];
 
-      perSystem = { system, pkgs, config, ... }: {
-        _module.args = {
-          inherit inputs;
-          pkgs = import inputs.nixpkgs {
-            inherit system;
-            overlays = [
-              inputs.agenix.overlays.default
+      perSystem =
+        args@{
+          system,
+          pkgs,
+          config,
+          lib,
+          ...
+        }:
+        {
+          _module.args = {
+            inherit inputs;
+            pkgs = import inputs.nixpkgs {
+              inherit system;
+              overlays = [ inputs.agenix.overlays.default ];
+            };
+            unstable = import inputs.unstable { inherit system; };
+            master = import inputs.master { inherit system; };
+          };
+
+          packages = import ./tests ({ inherit inputs self; } // args);
+
+          devShells.default = pkgs.mkShell {
+            buildInputs = with pkgs; [
+              deploy-rs
+              nixpkgs-fmt
+              agenix
+              age-plugin-yubikey
+              cachix
+              editorconfig-checker
+              nodePackages.prettier
+              nvfetcher
+              shellcheck
+              shfmt
+              treefmt
+              nixos-generators
+              inputs.nixpkgs-2205.legacyPackages.${system}.terraform
+              jq
             ];
           };
-          unstable = import inputs.unstable { inherit system; };
-          master = import inputs.master { inherit system; };
-        };
-        devShells.default = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            deploy-rs
-            nixpkgs-fmt
-            agenix
-            age-plugin-yubikey
-            cachix
-            editorconfig-checker
-            nodePackages.prettier
-            nvfetcher
-            shellcheck
-            shfmt
-            treefmt
-            nixos-generators
-            inputs.nixpkgs-2205.legacyPackages.${system}.terraform
-            jq
-          ];
-        };
-      };
 
-      flake =
-        let
+          devShells.ci = pkgs.mkShell { buildInputs = with pkgs; [ nodejs ]; };
+        };
+
+      flake = let
           username = "barkeeper";
         in
         {
           inherit username;
 
-          checks = builtins.mapAttrs (system: deployLib: deployLib.deployChecks self.deploy) inputs.deploy-rs.lib;
+          nixosModules = builtins.listToAttrs (
+            map (x: {
+              name = x;
+              value = import (./modules + "/${x}");
+            }) (builtins.attrNames (builtins.readDir ./modules))
+          );
+
+          checks = builtins.mapAttrs (
+            system: deployLib: deployLib.deployChecks self.deploy
+          ) inputs.deploy-rs.lib;
+
+          formatter."x86_64-linux" = inputs.unstable.legacyPackages."x86_64-linux".nixfmt-rfc-style;
 
           deploy.nodes = self.lib.deploy.mkDeployNodes self.nixosConfigurations {
             nachtigall = {
-              hostname = "10.7.6.1";
+              hostname = "nachtigall.wg.pub.solar";
               sshUser = username;
             };
             flora-6 = {
-              hostname = "10.7.6.2";
+              hostname = "flora-6.wg.pub.solar";
+              sshUser = username;
+            };
+            metronom = {
+              hostname = "metronom.wg.pub.solar";
+              sshUser = username;
+            };
+            tankstelle = {
+              hostname = "tankstelle.wg.pub.solar";
               sshUser = username;
             };
           };

hosts/default.nix

@@ -11,9 +11,49 @@
           self.nixosModules.unlock-zfs-on-boot
           self.nixosModules.core
           self.nixosModules.docker
+          self.nixosModules.backups
+
+          self.nixosModules.nginx
+          self.nixosModules.collabora
+          self.nixosModules.coturn
+          self.nixosModules.forgejo
+          self.nixosModules.keycloak
+          self.nixosModules.mailman
+          self.nixosModules.mastodon
+          self.nixosModules.nginx-mastodon
+          self.nixosModules.nginx-mastodon-files
+          self.nixosModules.mediawiki
+          self.nixosModules.nextcloud
+          self.nixosModules.nginx-prometheus-exporters
+          self.nixosModules.nginx-website
+          self.nixosModules.nginx-website-miom
+          self.nixosModules.opensearch
+          self.nixosModules.owncast
+          self.nixosModules.postgresql
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
+          self.nixosModules.searx
+          self.nixosModules.tmate
+          self.nixosModules.tt-rss
+          self.nixosModules.obs-portal
+          self.nixosModules.matrix
+          self.nixosModules.matrix-irc
+          self.nixosModules.matrix-telegram
+          self.nixosModules.nginx-matrix
         ];
       };
 
+      nachtigall-test = {
+				imports = [
+					self.inputs.agenix.nixosModules.default
+					self.nixosModules.home-manager
+					./nachtigall/test-vm.nix
+					self.nixosModules.overlays
+					self.nixosModules.core
+					self.nixosModules.docker
+				];
+			};
+
       flora-6 = self.nixos-flake.lib.mkLinuxSystem {
         imports = [
           self.inputs.agenix.nixosModules.default
@@ -21,6 +61,45 @@
           ./flora-6
           self.nixosModules.overlays
           self.nixosModules.core
+          self.nixosModules.backups
+
+          self.nixosModules.keycloak
+          self.nixosModules.caddy
+          self.nixosModules.drone
+          self.nixosModules.forgejo-actions-runner
+          self.nixosModules.grafana
+          self.nixosModules.prometheus
+          self.nixosModules.loki
+        ];
+      };
+
+      metronom = self.nixos-flake.lib.mkLinuxSystem {
+        imports = [
+          self.inputs.agenix.nixosModules.default
+          self.nixosModules.home-manager
+          ./metronom
+          self.nixosModules.overlays
+          self.nixosModules.unlock-zfs-on-boot
+          self.nixosModules.core
+          self.nixosModules.backups
+          self.nixosModules.mail
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
+
+          self.inputs.simple-nixos-mailserver.nixosModule
+        ];
+      };
+
+      tankstelle = self.nixos-flake.lib.mkLinuxSystem {
+        imports = [
+          self.inputs.agenix.nixosModules.default
+          self.nixosModules.home-manager
+          ./tankstelle
+          self.nixosModules.overlays
+          self.nixosModules.core
+          self.nixosModules.backups
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
         ];
       };
     };

hosts/flora-6/apps/caddy.nix

@@ -1,59 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}:
-{
-  systemd.tmpfiles.rules = [
-    "d '/data/srv/www/os/download/' 0750 hakkonaut hakkonaut - -"
-  ];
-
-  services.caddy = {
-    enable = lib.mkForce true;
-    group = "hakkonaut";
-    email = "admins@pub.solar";
-    enableReload = true;
-    globalConfig = lib.mkForce ''
-      grace_period 60s
-    '';
-    virtualHosts = {
-      "ci.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-          reverse_proxy :4000
-        '';
-      };
-      "flora-6.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-                    basicauth * {
-          	    hakkonaut $2a$14$mmIAy/Ezm6YGohUtXa2mWeW6Bcw1MQXPhrRbz14jAD2iUu3oob/t.
-                    }
-                    reverse_proxy :${toString config.services.loki.configuration.server.http_listen_port}
-        '';
-      };
-      "grafana.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-          reverse_proxy :${toString config.services.grafana.settings.server.http_port}
-        '';
-      };
-      "obs-portal.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-          reverse_proxy obs-portal.svc.e5756d08-36fd-424b-f8bc-acdb92ca7b82.lev-1.int.greenbaum.zone:3000
-        '';
-      };
-    };
-  };
-  networking.firewall.allowedTCPPorts = [ 80 443 ];
-}

hosts/flora-6/apps/loki.nix

@@ -1,84 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  # source: https://gist.github.com/rickhull/895b0cb38fdd537c1078a858cf15d63e
-  # https://grafana.com/docs/loki/latest/configure/examples/#1-local-configuration-exampleyaml
-  services.loki = {
-    enable = true;
-    configuration = {
-      server.http_listen_port = 3100;
-      auth_enabled = false;
-      common = {
-        ring = {
-          instance_addr = "127.0.0.1";
-          kvstore = {
-            store = "inmemory";
-          };
-        };
-        replication_factor = 1;
-        path_prefix = "/var/lib/loki";
-        storage = {
-          filesystem = {
-            chunks_directory = "chunks/";
-            rules_directory = "rules/";
-          };
-        };
-      };
-      # Keep logs for 4 weeks
-      # https://grafana.com/docs/loki/latest/operations/storage/retention/
-      limits_config.retention_period = "4w";
-      compactor = {
-        shared_store = "filesystem";
-        compaction_interval = "10m";
-        retention_enabled = true;
-        retention_delete_delay = "2h";
-        retention_delete_worker_count = 150;
-      };
-      schema_config = {
-        configs = [{
-          from = "2020-05-15";
-          store = "boltdb-shipper";
-          object_store = "filesystem";
-          schema = "v11";
-          index = {
-            prefix = "index_";
-            period = "24h";
-          };
-        }];
-      };
-    };
-  };
-
-  services.promtail = {
-    enable = true;
-    configuration = {
-      server = {
-        http_listen_port = 9080;
-        grpc_listen_port = 0;
-      };
-      positions = {
-        filename = "/tmp/positions.yaml";
-      };
-      clients = [{
-        url = "http://127.0.0.1:${toString config.services.loki.configuration.server.http_listen_port}/loki/api/v1/push";
-      }];
-      scrape_configs = [{
-        job_name = "journal";
-        journal = {
-          max_age = "24h";
-          labels = {
-            job = "systemd-journal";
-            host = "flora-6";
-          };
-        };
-        relabel_configs = [{
-          source_labels = [ "__journal__systemd_unit" ];
-          target_label = "unit";
-        }];
-      }];
-    };
-  };
-}

hosts/flora-6/apps/prometheus.nix

@@ -1,69 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  age.secrets.nachtigall-metrics-prometheus-basic-auth-password = {
-    file = "${flake.self}/secrets/nachtigall-metrics-prometheus-basic-auth-password.age";
-    mode = "600";
-    owner = "prometheus";
-  };
-
-  services.prometheus = {
-    enable = true;
-    port = 9001;
-    exporters = {
-      node = {
-        enable = true;
-        enabledCollectors = [ "systemd" ];
-        port = 9002;
-      };
-    };
-    globalConfig = {
-      scrape_interval = "10s";
-      scrape_timeout = "9s";
-    };
-    scrapeConfigs = [
-      {
-        job_name = "node-exporter-http";
-        static_configs = [{
-          targets = [ "127.0.0.1:${toString config.services.prometheus.exporters.node.port}" ];
-          labels = {
-            instance = "flora-6";
-          };
-        }];
-      }
-      {
-        job_name = "node-exporter-https";
-        scheme = "https";
-        metrics_path = "/metrics";
-        basic_auth = {
-          username = "hakkonaut";
-          password_file = "${config.age.secrets.nachtigall-metrics-prometheus-basic-auth-password.path}";
-        };
-        static_configs = [{
-          targets = [ "nachtigall.pub.solar" ];
-          labels = {
-            instance = "nachtigall";
-          };
-        }];
-      }
-      {
-        job_name = "matrix-synapse";
-        scheme = "https";
-        metrics_path = "/_synapse/metrics";
-        basic_auth = {
-          username = "hakkonaut";
-          password_file = "${config.age.secrets.nachtigall-metrics-prometheus-basic-auth-password.path}";
-        };
-        static_configs = [{
-          targets = [ "nachtigall.pub.solar" ];
-          labels = {
-            instance = "nachtigall";
-          };
-        }];
-      }
-    ];
-  };
-}

hosts/flora-6/configuration.nix

@@ -1,8 +1,9 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
 }:
 let
   psCfg = config.pub-solar;

hosts/flora-6/default.nix

@@ -1,20 +1,11 @@
 { ... }:
 
 {
-  imports =
-    [
-      # Include the results of the hardware scan.
-      ./hardware-configuration.nix
-      ./configuration.nix
-      ./triton-vmtools.nix
-      ./wireguard.nix
-
-      ./apps/caddy.nix
-
-      ./apps/drone.nix
-      ./apps/forgejo-actions-runner.nix
-      ./apps/grafana.nix
-      ./apps/prometheus.nix
-      ./apps/loki.nix
-    ];
+  imports = [
+    # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+    ./configuration.nix
+    ./triton-vmtools.nix
+    ./wireguard.nix
+  ];
 }

hosts/flora-6/hardware-configuration.nix

@@ -1,15 +1,23 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config
-, lib
-, pkgs
-, modulesPath
-, ...
-}: {
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+{
   imports = [ ];
 
-  boot.initrd.availableKernelModules = [ "ahci" "virtio_pci" "xhci_pci" "sr_mod" "virtio_blk" ];
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "virtio_pci"
+    "xhci_pci"
+    "sr_mod"
+    "virtio_blk"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ ];
   boot.extraModulePackages = [ ];

hosts/flora-6/triton-vmtools.nix

@@ -1,7 +1,5 @@
-{ pkgs
-, flake
-, ...
-}: {
+{ pkgs, flake, ... }:
+{
   environment.systemPackages = with pkgs; [
     flake.inputs.triton-vmtools.packages.${pkgs.system}.default
   ];

hosts/flora-6/wireguard.nix

@@ -2,7 +2,8 @@
   config,
   pkgs,
   flake,
-  ... }:
+  ...
+}:
 {
   networking.firewall.allowedUDPPorts = [ 51820 ];
 
@@ -18,16 +19,39 @@
       ];
       privateKeyFile = config.age.secrets.wg-private-key.path;
       peers = flake.self.logins.admins.wireguardDevices ++ [
-        { # nachtigall.pub.solar
+        {
+          # nachtigall.pub.solar
           endpoint = "138.201.80.102:51820";
           publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
-          allowedIPs = [ "10.7.6.1/32" "fd00:fae:fae:fae:fae:1::/96" ];
+          allowedIPs = [
+            "10.7.6.1/32"
+            "fd00:fae:fae:fae:fae:1::/96"
+          ];
+        }
+        {
+          # metronom.pub.solar
+          endpoint = "49.13.236.167:51820";
+          publicKey = "zOSYGO7MfnOOUnzaTcWiKRQM0qqxR3JQrwx/gtEtHmo=";
+          allowedIPs = [
+            "10.7.6.3/32"
+            "fd00:fae:fae:fae:fae:3::/96"
+          ];
+          persistentKeepalive = 15;
+        }
+        {
+          # tankstelle.pub.solar
+          endpoint = "80.244.242.5:51820";
+          publicKey = "iRTlY1lB7nPXf2eXzX8ZZDkfMmXyGjff5/joccbP8Cg=";
+          allowedIPs = [
+            "10.7.6.4/32"
+            "fd00:fae:fae:fae:fae:4::/96"
+          ];
         }
       ];
     };
   };
 
-  services.openssh.listenAddresses = [ 
+  services.openssh.listenAddresses = [
     {
       addr = "10.7.6.2";
       port = 22;

hosts/metronom/backups.nix

@@ -0,0 +1,13 @@
+{ flake, ... }:
+{
+  age.secrets."restic-repo-droppie" = {
+    file = "${flake.self}/secrets/restic-repo-droppie.age";
+    mode = "400";
+    owner = "root";
+  };
+  age.secrets."restic-repo-storagebox" = {
+    file = "${flake.self}/secrets/restic-repo-storagebox.age";
+    mode = "400";
+    owner = "root";
+  };
+}

hosts/metronom/configuration.nix

@@ -0,0 +1,39 @@
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
+  boot.loader.systemd-boot.enable = true;
+  boot.supportedFilesystems = [ "zfs" ];
+
+  boot.kernelParams = [
+    "boot.shell_on_fail=1"
+    "ip=dhcp"
+  ];
+
+  boot.initrd.availableKernelModules = [ "igb" ];
+
+  # https://nixos.wiki/wiki/ZFS#declarative_mounting_of_ZFS_datasets
+  systemd.services.zfs-mount.enable = false;
+
+  services.zfs.autoScrub = {
+    enable = true;
+    pools = [ "root_pool" ];
+  };
+
+  # Declarative SSH private key
+  #age.secrets."metronom-root-ssh-key" = {
+  #  file = "${flake.self}/secrets/metronom-root-ssh-key.age";
+  #  path = "/root/.ssh/id_ed25519";
+  #  mode = "400";
+  #  owner = "root";
+  #};
+
+  # This value determines the NixOS release with which your system is to be
+  # compatible, in order to avoid breaking some software such as database
+  # servers. You should change this only after NixOS release notes say you
+  # should.
+  system.stateVersion = "23.11"; # Did you read the comment?
+}

hosts/metronom/default.nix

@@ -0,0 +1,12 @@
+{ flake, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ./configuration.nix
+
+    ./networking.nix
+    ./wireguard.nix
+    #./backups.nix
+  ];
+}

hosts/metronom/hardware-configuration.nix

@@ -0,0 +1,48 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "virtio_pci"
+    "virtio_scsi"
+    "usbhid"
+    "sr_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "root_pool/root";
+    fsType = "zfs";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/2083-C68E";
+    fsType = "vfat";
+  };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.eth0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/metronom/networking.nix

@@ -0,0 +1,19 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+
+  networking.hostName = "metronom";
+  networking.extraHosts = ''
+    127.0.0.2 mail.pub.solar mail
+    ::1 mail.pub.solar mail
+  '';
+  networking.hostId = "00000002";
+
+  networking.enableIPv6 = true;
+  networking.useDHCP = false;
+  networking.interfaces."enp1s0".useDHCP = true;
+}

hosts/metronom/wireguard.nix

@@ -0,0 +1,54 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  networking.firewall.allowedUDPPorts = [ 51820 ];
+
+  age.secrets.wg-private-key.file = "${flake.self}/secrets/metronom-wg-private-key.age";
+
+  networking.wireguard.interfaces = {
+    wg-ssh = {
+      listenPort = 51820;
+      mtu = 1300;
+      ips = [
+        "10.7.6.3/32"
+        "fd00:fae:fae:fae:fae:3::/96"
+      ];
+      privateKeyFile = config.age.secrets.wg-private-key.path;
+      peers = flake.self.logins.admins.wireguardDevices ++ [
+        {
+          # flora-6.pub.solar
+          endpoint = "80.71.153.210:51820";
+          publicKey = "jtSR5G2P/nm9s8WrVc26Xc/SQLupRxyXE+5eIeqlsTU=";
+          allowedIPs = [
+            "10.7.6.2/32"
+            "fd00:fae:fae:fae:fae:2::/96"
+          ];
+        }
+        {
+          # nachtigall.pub.solar
+          endpoint = "138.201.80.102:51820";
+          publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
+          allowedIPs = [
+            "10.7.6.1/32"
+            "fd00:fae:fae:fae:fae:1::/96"
+          ];
+        }
+      ];
+    };
+  };
+
+  services.openssh.listenAddresses = [
+    {
+      addr = "10.7.6.3";
+      port = 22;
+    }
+    {
+      addr = "[fd00:fae:fae:fae:fae:3::]";
+      port = 22;
+    }
+  ];
+}

hosts/nachtigall/apps/keycloak.nix

@@ -30,7 +30,6 @@
     };
   };
 
-  # keycloak
   services.keycloak = {
     enable = true;
     database.passwordFile = config.age.secrets.keycloak-database-password.path;
@@ -44,6 +43,9 @@
     themes = {
       "pub.solar" = flake.inputs.keycloak-theme-pub-solar.legacyPackages.${pkgs.system}.keycloak-theme-pub-solar;
     };
+		plugins = [
+			flake.inputs.keycloak-event-listener.packages.${pkgs.system}.keycloak-event-listener
+		];
   };
 
   services.restic.backups.keycloak-droppie = {

hosts/nachtigall/apps/matrix/matrix-log-config.yaml

@@ -1,40 +0,0 @@
-version: 1
-
-formatters:
-  precise:
-    format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
-
-filters:
-  context:
-    (): synapse.util.logcontext.LoggingContextFilter
-    request: ""
-
-handlers:
-  console:
-    class: logging.StreamHandler
-    formatter: precise
-    filters: [context]
-
-loggers:
-  synapse:
-    level: WARNING
-
-  synapse.storage.SQL:
-    # beware: increasing this to DEBUG will make synapse log sensitive
-    # information such as access tokens.
-    level: WARNING
-
-  synapse.http.matrixfederationclient:
-    level: CRITICAL
-  synapse.federation.sender.per_destination_queue:
-    level: CRITICAL
-  synapse.handlers.device:
-    level: CRITICAL
-  synapse.replication.tcp.handler:
-    level: CRITICAL
-  shared_secret_authenticator:
-    level: INFO
-
-root:
-  level: WARNING
-  handlers: [console]

hosts/nachtigall/apps/nginx-prometheus-exporters.nix

@@ -1,32 +0,0 @@
-{ config, flake, lib, ... }:
-let
-  # Find element in list config.services.matrix-synapse.settings.listeners
-  # that sets type = "metrics"
-  listenerWithMetrics = lib.findFirst
-    (listener:
-      listener.type == "metrics")
-    (throw "Found no matrix-synapse.settings.listeners.*.type containing string metrics")
-    config.services.matrix-synapse.settings.listeners
-  ;
-  synapseMetricsPort = "${toString listenerWithMetrics.port}";
-in
-{
-  age.secrets.nachtigall-metrics-nginx-basic-auth = {
-    file = "${flake.self}/secrets/nachtigall-metrics-nginx-basic-auth.age";
-    mode = "600";
-    owner = "nginx";
-  };
-  services.nginx.virtualHosts = {
-    "nachtigall.pub.solar" = {
-      enableACME = true;
-      addSSL = true;
-      basicAuthFile = "${config.age.secrets.nachtigall-metrics-nginx-basic-auth.path}";
-      locations."/metrics" = {
-        proxyPass = "http://127.0.0.1:${toString(config.services.prometheus.exporters.node.port)}";
-      };
-      locations."/_synapse/metrics" = {
-        proxyPass = "http://127.0.0.1:${synapseMetricsPort}";
-      };
-    };
-  };
-}

hosts/nachtigall/apps/postgresql.nix

@@ -1,17 +0,0 @@
-{ ... }:
-
-{
-  services.postgresql = {
-    enable = true;
-    enableTCPIP = true;
-  };
-
-  systemd.services.postgresql = {
-    after = [
-      "var-lib-postgresql.mount"
-    ];
-    requisite = [
-      "var-lib-postgresql.mount"
-    ];
-  };
-}

hosts/nachtigall/apps/promtail.nix

@@ -1,46 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  age.secrets.nachtigall-metrics-prometheus-basic-auth-password = {
-    file = "${flake.self}/secrets/nachtigall-metrics-prometheus-basic-auth-password.age";
-    mode = "600";
-    owner = "promtail";
-  };
-
-  services.promtail = {
-    enable = true;
-    configuration = {
-      server = {
-        http_listen_port = 9080;
-        grpc_listen_port = 0;
-      };
-      positions = {
-        filename = "/tmp/positions.yaml";
-      };
-      clients = [{
-        url = "https://flora-6.pub.solar/loki/api/v1/push";
-        basic_auth = {
-          username = "hakkonaut";
-          password_file = "${config.age.secrets.nachtigall-metrics-prometheus-basic-auth-password.path}";
-        };
-      }];
-      scrape_configs = [{
-        job_name = "journal";
-        journal = {
-          max_age = "24h";
-          labels = {
-            job = "systemd-journal";
-            host = "nachtigall";
-          };
-        };
-        relabel_configs = [{
-          source_labels = [ "__journal__systemd_unit" ];
-          target_label = "unit";
-        }];
-      }];
-    };
-  };
-}

hosts/nachtigall/backups.nix

@@ -1,4 +1,5 @@
-{ flake, ... }: {
+{ flake, ... }:
+{
   age.secrets."restic-repo-droppie" = {
     file = "${flake.self}/secrets/restic-repo-droppie.age";
     mode = "400";

hosts/nachtigall/configuration.nix

@@ -1,8 +1,10 @@
-{ flake
-, config
-, pkgs
-, ...
-}: {
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
   # Use GRUB2 as the boot loader.
   # We don't use systemd-boot because Hetzner uses BIOS legacy boot.
   boot.loader.systemd-boot.enable = false;
@@ -11,15 +13,11 @@
     efiSupport = false;
     mirroredBoots = [
       {
-        devices = [
-          "/dev/disk/by-id/nvme-SAMSUNG_MZVL21T0HCLR-00B00_S676NF0R517371"
-        ];
+        devices = [ "/dev/disk/by-id/nvme-SAMSUNG_MZVL21T0HCLR-00B00_S676NF0R517371" ];
         path = "/boot1";
       }
       {
-        devices = [
-          "/dev/disk/by-id/nvme-KXG60ZNV1T02_TOSHIBA_Z9NF704ZF9ZL"
-        ];
+        devices = [ "/dev/disk/by-id/nvme-KXG60ZNV1T02_TOSHIBA_Z9NF704ZF9ZL" ];
         path = "/boot2";
       }
     ];
@@ -37,6 +35,11 @@
   # https://nixos.wiki/wiki/ZFS#declarative_mounting_of_ZFS_datasets
   systemd.services.zfs-mount.enable = false;
 
+  services.zfs.autoScrub = {
+    enable = true;
+    pools = [ "root_pool" ];
+  };
+
   # Declarative SSH private key
   age.secrets."nachtigall-root-ssh-key" = {
     file = "${flake.self}/secrets/nachtigall-root-ssh-key.age";
@@ -45,6 +48,22 @@
     owner = "root";
   };
 
+  age.secrets.keycloak-database-password = {
+    file = "${flake.self}/secrets/keycloak-database-password.age";
+    mode = "600";
+    #owner = "keycloak";
+  };
+
+  pub-solar-os.auth = {
+    enable = true;
+    database-password-file = config.age.secrets.keycloak-database-password.path;
+  };
+
+  pub-solar-os.backups.stores.storagebox = {
+    passwordFile = config.age.secrets."restic-repo-storagebox".path;
+    repository = "sftp:u377325@u377325.your-storagebox.de:/backups";
+  };
+
   # This value determines the NixOS release with which your system is to be
   # compatible, in order to avoid breaking some software such as database
   # servers. You should change this only after NixOS release notes say you

hosts/nachtigall/default.nix

@@ -1,41 +1,13 @@
 { flake, ... }:
 
 {
-  imports =
-    [
-      # Include the results of the hardware scan.
-      ./hardware-configuration.nix
-      ./configuration.nix
+  imports = [
+    # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+    ./configuration.nix
 
-      ./networking.nix
-      ./wireguard.nix
-      ./backups.nix
-      ./apps/nginx.nix
-
-      ./apps/collabora.nix
-      ./apps/coturn.nix
-      ./apps/forgejo.nix
-      ./apps/keycloak.nix
-      ./apps/mailman.nix
-      ./apps/mastodon.nix
-      ./apps/mediawiki.nix
-      ./apps/nextcloud.nix
-      ./apps/nginx-mastodon.nix
-      ./apps/nginx-mastodon-files.nix
-      ./apps/nginx-prometheus-exporters.nix
-      ./apps/nginx-website.nix
-      ./apps/nginx-website-miom.nix
-      ./apps/opensearch.nix
-      ./apps/owncast.nix
-      ./apps/postgresql.nix
-      ./apps/prometheus-exporters.nix
-      ./apps/promtail.nix
-      ./apps/searx.nix
-      ./apps/tmate.nix
-
-      ./apps/matrix/irc.nix
-      ./apps/matrix/mautrix-telegram.nix
-      ./apps/matrix/synapse.nix
-      ./apps/nginx-matrix.nix
-    ];
+    ./networking.nix
+    ./wireguard.nix
+    ./backups.nix
+  ];
 }

hosts/nachtigall/hardware-configuration.nix

@@ -1,54 +1,54 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, pkgs, modulesPath, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
-    [
-      (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
 
-  boot.initrd.availableKernelModules = [ "ahci" "nvme" ];
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "nvme"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    {
-      device = "root_pool/root";
-      fsType = "zfs";
-    };
+  fileSystems."/" = {
+    device = "root_pool/root";
+    fsType = "zfs";
+  };
 
-  fileSystems."/var/lib" =
-    {
-      device = "root_pool/data";
-      fsType = "zfs";
-    };
+  fileSystems."/var/lib" = {
+    device = "root_pool/data";
+    fsType = "zfs";
+  };
 
-  fileSystems."/var/lib/postgresql" =
-    {
-      device = "root_pool/data/postgresql";
-      fsType = "zfs";
-    };
+  fileSystems."/var/lib/postgresql" = {
+    device = "root_pool/data/postgresql";
+    fsType = "zfs";
+  };
 
-  fileSystems."/var/lib/docker" =
-    {
-      device = "root_pool/data/docker";
-      fsType = "zfs";
-    };
+  fileSystems."/var/lib/docker" = {
+    device = "root_pool/data/docker";
+    fsType = "zfs";
+  };
 
-  fileSystems."/boot1" =
-    {
-      device = "/dev/disk/by-uuid/5493-EFF5";
-      fsType = "vfat";
-    };
+  fileSystems."/boot1" = {
+    device = "/dev/disk/by-uuid/5493-EFF5";
+    fsType = "vfat";
+  };
 
-  fileSystems."/boot2" =
-    {
-      device = "/dev/disk/by-uuid/5494-BA1E";
-      fsType = "vfat";
-    };
+  fileSystems."/boot2" = {
+    device = "/dev/disk/by-uuid/5494-BA1E";
+    fsType = "vfat";
+  };
 
   swapDevices = [ ];
 

hosts/nachtigall/networking.nix

@@ -2,11 +2,11 @@
   config,
   pkgs,
   flake,
-  ... }:
+  ...
+}:
 {
 
   networking.hostName = "nachtigall";
-  networking.domain = "pub.solar";
   networking.hostId = "00000001";
 
   # Network (Hetzner uses static IP assignments, and we don't use DHCP here)
@@ -24,5 +24,8 @@
     }
   ];
   networking.defaultGateway = "138.201.80.65";
-  networking.defaultGateway6 = { address = "fe80::1"; interface = "enp35s0"; };
+  networking.defaultGateway6 = {
+    address = "fe80::1";
+    interface = "enp35s0";
+  };
 }

hosts/nachtigall/test-vm.nix

@@ -0,0 +1,54 @@
+{ flake, lib, ... }:
+
+{
+  imports =
+    [
+      ./backups.nix
+      ./apps/nginx.nix
+
+      ./apps/collabora.nix
+      ./apps/coturn.nix
+      ./apps/forgejo.nix
+      ./apps/keycloak.nix
+      ./apps/mailman.nix
+      ./apps/mastodon.nix
+      ./apps/mediawiki.nix
+      ./apps/nextcloud.nix
+      ./apps/nginx-mastodon.nix
+      ./apps/nginx-mastodon-files.nix
+      ./apps/nginx-prometheus-exporters.nix
+      ./apps/nginx-website.nix
+      ./apps/nginx-website-miom.nix
+      ./apps/opensearch.nix
+      ./apps/owncast.nix
+      ./apps/postgresql.nix
+      ./apps/prometheus-exporters.nix
+      ./apps/promtail.nix
+      ./apps/searx.nix
+      ./apps/tmate.nix
+
+      ./apps/matrix/irc.nix
+      ./apps/matrix/mautrix-telegram.nix
+      ./apps/matrix/synapse.nix
+      ./apps/nginx-matrix.nix
+    ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  
+  security.acme.defaults.server = "https://acme-staging-v02.api.letsencrypt.org/directory";
+  security.acme.preliminarySelfsigned = true;
+
+  networking.useDHCP = true;
+  networking.interfaces."enp35s0".ipv4.addresses = [
+    {
+      address = "10.0.0.1";
+      prefixLength = 26;
+    }
+  ];
+  networking.interfaces."enp35s0".ipv6.addresses = [
+    {
+      address = "2a01:4f8:172:1c25::1";
+      prefixLength = 64;
+    }
+  ];
+}

hosts/nachtigall/wireguard.nix

@@ -2,7 +2,8 @@
   config,
   pkgs,
   flake,
-  ... }:
+  ...
+}:
 {
   networking.firewall.allowedUDPPorts = [ 51820 ];
 
@@ -18,16 +19,29 @@
       ];
       privateKeyFile = config.age.secrets.wg-private-key.path;
       peers = flake.self.logins.admins.wireguardDevices ++ [
-        { # flora-6.pub.solar
+        {
+          # flora-6.pub.solar
           endpoint = "80.71.153.210:51820";
           publicKey = "jtSR5G2P/nm9s8WrVc26Xc/SQLupRxyXE+5eIeqlsTU=";
-          allowedIPs = [ "10.7.6.2/32" "fd00:fae:fae:fae:fae:2::/96" ];
+          allowedIPs = [
+            "10.7.6.2/32"
+            "fd00:fae:fae:fae:fae:2::/96"
+          ];
+        }
+        {
+          # tankstelle.pub.solar
+          endpoint = "80.244.242.5:51820";
+          publicKey = "iRTlY1lB7nPXf2eXzX8ZZDkfMmXyGjff5/joccbP8Cg=";
+          allowedIPs = [
+            "10.7.6.4/32"
+            "fd00:fae:fae:fae:fae:4::/96"
+          ];
         }
       ];
     };
   };
 
-  services.openssh.listenAddresses = [ 
+  services.openssh.listenAddresses = [
     {
       addr = "10.7.6.1";
       port = 22;

hosts/tankstelle/backups.nix

@@ -0,0 +1,13 @@
+{ flake, ... }:
+{
+  age.secrets."restic-repo-droppie" = {
+    file = "${flake.self}/secrets/restic-repo-droppie.age";
+    mode = "400";
+    owner = "root";
+  };
+  age.secrets."restic-repo-storagebox" = {
+    file = "${flake.self}/secrets/restic-repo-storagebox.age";
+    mode = "400";
+    owner = "root";
+  };
+}

hosts/tankstelle/configuration.nix

@@ -0,0 +1,16 @@
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
+  imports = [ ./hardware-configuration.nix ];
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+
+  system.stateVersion = "23.11";
+}

hosts/tankstelle/default.nix

@@ -0,0 +1,13 @@
+{ flake, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ./configuration.nix
+
+    ./networking.nix
+    ./forgejo-actions-runner.nix
+    ./wireguard.nix
+    #./backups.nix
+  ];
+}

hosts/tankstelle/forgejo-actions-runner.nix

@@ -0,0 +1,62 @@
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  age.secrets.tankstelle-forgejo-actions-runner-token = {
+    file = "${flake.self}/secrets/tankstelle-forgejo-actions-runner-token.age";
+    mode = "440";
+  };
+
+  # Trust docker bridge interface traffic
+  # Needed for the docker runner to communicate with the act_runner cache
+  networking.firewall.trustedInterfaces = [ "br-+" ];
+
+  users.users.gitea-runner = {
+    home = "/var/lib/gitea-runner/tankstelle";
+    useDefaultShell = true;
+    group = "gitea-runner";
+    # Required to interact with nix daemon
+    extraGroups = [ "wheel" ];
+    isSystemUser = true;
+  };
+
+  users.groups.gitea-runner = { };
+
+  systemd.tmpfiles.rules = [ "d '/var/lib/gitea-runner' 0750 gitea-runner gitea-runner - -" ];
+
+  systemd.services."gitea-runner-tankstelle" = {
+    serviceConfig.DynamicUser = lib.mkForce false;
+    path = with pkgs; [
+      coreutils
+      bash
+      coreutils
+      curl
+      gawk
+      gitMinimal
+      gnused
+      nodejs
+      wget
+      cachix
+      jq
+      nix
+    ];
+  };
+
+  # forgejo actions runner
+  # https://forgejo.org/docs/latest/admin/actions/
+  # https://docs.gitea.com/usage/actions/quickstart
+  services.gitea-actions-runner = {
+    package = pkgs.forgejo-runner;
+    instances."tankstelle" = {
+      enable = true;
+      name = config.networking.hostName;
+      url = "https://git.pub.solar";
+      tokenFile = config.age.secrets.tankstelle-forgejo-actions-runner-token.path;
+      labels = [ "self-hosted:host://-self-hosted" ];
+    };
+  };
+}

hosts/tankstelle/hardware-configuration.nix

@@ -0,0 +1,41 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "xhci_pci"
+    "virtio_pci"
+    "sr_mod"
+    "virtio_blk"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/17531ffc-46bd-4259-8287-2dea73804b5b";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/AF98-AA5C";
+    fsType = "vfat";
+  };
+
+  swapDevices = [ { device = "/dev/disk/by-uuid/7aee04b5-1ef9-43de-acb4-70ac1238b58a"; } ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/tankstelle/networking.nix

@@ -0,0 +1,38 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  networking = {
+    hostName = "tankstelle";
+    enableIPv6 = true;
+    defaultGateway = {
+      address = "80.244.242.1";
+      interface = "enp1s0";
+    };
+    defaultGateway6 = {
+      address = "2001:4d88:1ffa:26::1";
+      interface = "enp1s0";
+    };
+    nameservers = [
+      "95.129.51.51"
+      "80.244.244.244"
+    ];
+    interfaces."enp1s0" = {
+      ipv4.addresses = [
+        {
+          address = "80.244.242.5";
+          prefixLength = 29;
+        }
+      ];
+      ipv6.addresses = [
+        {
+          address = "2001:4d88:1ffa:26::5";
+          prefixLength = 64;
+        }
+      ];
+    };
+  };
+}

hosts/tankstelle/wireguard.nix

@@ -0,0 +1,54 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  networking.firewall.allowedUDPPorts = [ 51820 ];
+
+  age.secrets.wg-private-key.file = "${flake.self}/secrets/tankstelle-wg-private-key.age";
+
+  networking.wireguard.interfaces = {
+    wg-ssh = {
+      listenPort = 51820;
+      mtu = 1300;
+      ips = [
+        "10.7.6.4/32"
+        "fd00:fae:fae:fae:fae:4::/96"
+      ];
+      privateKeyFile = config.age.secrets.wg-private-key.path;
+      peers = flake.self.logins.admins.wireguardDevices ++ [
+        {
+          # nachtigall.pub.solar
+          endpoint = "138.201.80.102:51820";
+          publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
+          allowedIPs = [
+            "10.7.6.1/32"
+            "fd00:fae:fae:fae:fae:1::/96"
+          ];
+        }
+        {
+          # flora-6.pub.solar
+          endpoint = "80.71.153.210:51820";
+          publicKey = "jtSR5G2P/nm9s8WrVc26Xc/SQLupRxyXE+5eIeqlsTU=";
+          allowedIPs = [
+            "10.7.6.2/32"
+            "fd00:fae:fae:fae:fae:2::/96"
+          ];
+        }
+      ];
+    };
+  };
+
+  services.openssh.listenAddresses = [
+    {
+      addr = "10.7.6.4";
+      port = 22;
+    }
+    {
+      addr = "[fd00:fae:fae:fae:fae:4::]";
+      port = 22;
+    }
+  ];
+}

lib/compat/default.nix

@@ -1,16 +1,16 @@
 let
-  lock = builtins.fromJSON (builtins.readFile builtins.path {
-    path = ../../flake.lock;
-    name = "lockPath";
-  });
+  lock = builtins.fromJSON (
+    builtins.readFile builtins.path {
+      path = ../../flake.lock;
+      name = "lockPath";
+    }
+  );
   flake =
     import
-      (
-        fetchTarball {
-          url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-          sha256 = lock.nodes.flake-compat.locked.narHash;
-        }
-      )
+      (fetchTarball {
+        url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      })
       {
         src = builtins.path {
           path = ../../.;

lib/default.nix

@@ -1,8 +1,13 @@
-{ self, lib, inputs, ... }: {
+{
+  self,
+  lib,
+  inputs,
+  ...
+}:
+{
   # Configuration common to all Linux systems
   flake = {
-    lib =
-      let
+    lib = let
         callLibs = file: import file { inherit lib; };
       in
       rec {

lib/deploy.nix

@@ -1,75 +1,80 @@
 /*
- * The contents of this file are adapted from digga
- * https://github.com/divnix/digga
- *
- * Licensed under the MIT license
- */
+  The contents of this file are adapted from digga
+  https://github.com/divnix/digga
+
+  Licensed under the MIT license
+*/
 
 { lib, inputs }:
 let
-  # https://github.com/serokell/deploy-rs#overall-usage
-  system = "x86_64-linux";
-  pkgs = import inputs.nixpkgs { inherit system; };
-  deployPkgs = import inputs.nixpkgs {
-    inherit system;
-    overlays = [
-      inputs.deploy-rs.overlay
-      (self: super: { deploy-rs = { inherit (pkgs) deploy-rs; lib = super.deploy-rs.lib; }; })
-    ];
-  };
-  getFqdn = c:
+  getFqdn =
+    c:
     let
       net = c.config.networking;
       fqdn =
-        if (net ? domain) && (net.domain != null)
-        then "${net.hostName}.${net.domain}"
-        else net.hostName;
+        if (net ? domain) && (net.domain != null) then "${net.hostName}.${net.domain}" else net.hostName;
     in
     fqdn;
 in
 {
-  mkDeployNodes = systemConfigurations: extraConfig:
+  mkDeployNodes =
+    systemConfigurations: extraConfig:
     /*
-     *
-       Synopsis: mkNodes _systemConfigurations_ _extraConfig_
+      *
+        Synopsis: mkNodes _systemConfigurations_ _extraConfig_
 
-       Generate the `nodes` attribute expected by deploy-rs
-       where _systemConfigurations_ are `nodes`.
+        Generate the `nodes` attribute expected by deploy-rs
+        where _systemConfigurations_ are `nodes`.
 
-       _systemConfigurations_ should take the form of a flake's
-       _nixosConfigurations_. Note that deploy-rs does not currently support
-       deploying to darwin hosts.
+        _systemConfigurations_ should take the form of a flake's
+        _nixosConfigurations_. Note that deploy-rs does not currently support
+        deploying to darwin hosts.
 
-       _extraConfig_, if specified, will be merged into each of the
-       nodes' configurations.
+        _extraConfig_, if specified, will be merged into each of the
+        nodes' configurations.
 
-       Example _systemConfigurations_ input:
+        Example _systemConfigurations_ input:
 
-       ```
-       {
-       hostname-1 = {
-       fastConnection = true;
-       sshOpts = [ "-p" "25" ];
-       };
-       hostname-2 = {
-       sshOpts = [ "-p" "19999" ];
-       sshUser = "root";
-       };
-       }
-       ```
-     *
-     */
-    lib.recursiveUpdate
-      (lib.mapAttrs
-        (
-          _: c: {
-            hostname = getFqdn c;
-            profiles.system = {
-              user = "root";
-              path = deployPkgs.deploy-rs.lib.activate.nixos c;
-            };
-          }
-        )
-        systemConfigurations)
-      extraConfig;
+        ```
+        {
+        hostname-1 = {
+        fastConnection = true;
+        sshOpts = [ "-p" "25" ];
+        };
+        hostname-2 = {
+        sshOpts = [ "-p" "19999" ];
+        sshUser = "root";
+        };
+        }
+        ```
+      *
+    */
+    lib.recursiveUpdate (lib.mapAttrs (_: c: {
+      hostname = getFqdn c;
+      profiles.system =
+        let
+          system = c.pkgs.system;
+
+          # Unmodified nixpkgs
+          pkgs = import inputs.nixpkgs { inherit system; };
+
+          # nixpkgs with deploy-rs overlay but force the nixpkgs package
+          deployPkgs = import inputs.nixpkgs {
+            inherit system;
+            overlays = [
+              inputs.deploy-rs.overlay # or deploy-rs.overlays.default
+              (self: super: {
+                deploy-rs = {
+                  inherit (pkgs) deploy-rs;
+                  lib = super.deploy-rs.lib;
+                };
+              })
+            ];
+          };
+        in
+        {
+          user = "root";
+          path = deployPkgs.deploy-rs.lib.activate.nixos c;
+        };
+    }) systemConfigurations) extraConfig;
 }

logins/admins.nix

@@ -10,7 +10,10 @@
       {
         # tuxnix
         publicKey = "fTvULvdsc92binFaBV+uWwFi33bi8InShcaPnoxUZEA=";
-        allowedIPs = [ "10.7.6.203/32" "fd00:fae:fae:fae:fae:203::/96" ];
+        allowedIPs = [
+          "10.7.6.203/32"
+          "fd00:fae:fae:fae:fae:203::/96"
+        ];
       }
     ];
   };
@@ -27,9 +30,13 @@
     } // sshPubKeys;
 
     wireguardDevices = [
-      { # stroopwafel
+      {
+        # stroopwafel
         publicKey = "NNb7T8Jmn+V2dTZ8T6Fcq7hGomHGDckKoV3kK2oAhSE=";
-        allowedIPs = [ "10.7.6.200/32" "fd00:fae:fae:fae:fae:200::/96" ];
+        allowedIPs = [
+          "10.7.6.200/32"
+          "fd00:fae:fae:fae:fae:200::/96"
+        ];
       }
     ];
   };
@@ -42,9 +49,13 @@
 
     secretEncryptionKeys = sshPubKeys;
     wireguardDevices = [
-      { # judy
+      {
+        # judy
         publicKey = "I+gN7v1VXkAGoSir6L8aebtLbguvy5nAx1QVDTzdckk=";
-        allowedIPs = [ "10.7.6.202/32" "fd00:fae:fae:fae:fae:202::/96" ];
+        allowedIPs = [
+          "10.7.6.202/32"
+          "fd00:fae:fae:fae:fae:202::/96"
+        ];
       }
     ];
   };
@@ -56,16 +67,25 @@
 
     secretEncryptionKeys = {
       teutat3s-1 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHcU6KPy4b1MQXd6EJhcYwbJu7E+0IrBZF/IP6T7gbMf teutat3s@dumpyourvms";
+      teutat3s-2 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPAsRdVYK0077cdtavmrRr6akrI68T1EDY4Hfv4+W86J teutat3s@ryzensun";
     };
 
     wireguardDevices = [
-      { # dumpyourvms
+      {
+        # dumpyourvms
         publicKey = "3UrVLQrwXnPAVXPiTAd7eM3fZYxnFSYgKAGpNMUwnUk=";
-        allowedIPs = [ "10.7.6.201/32" "fd00:fae:fae:fae:fae:201::/96" ];
+        allowedIPs = [
+          "10.7.6.201/32"
+          "fd00:fae:fae:fae:fae:201::/96"
+        ];
       }
-      { # ryzensun
+      {
+        # ryzensun
         publicKey = "oVF2/s7eIxyVjtG0MhKPx5SZ1JllZg+ZFVF2eVYtPGo=";
-        allowedIPs = [ "10.7.6.204/32" "fd00:fae:fae:fae:fae:204::/96" ];
+        allowedIPs = [
+          "10.7.6.204/32"
+          "fd00:fae:fae:fae:fae:204::/96"
+        ];
       }
     ];
   };

logins/default.nix

@@ -1,13 +1,24 @@
-{ lib, ... }: let
+{ lib, ... }:
+let
   admins = import ./admins.nix;
   robots = import ./robots.nix;
-in {
+in
+{
   flake = {
     logins = {
-      admins = lib.lists.foldl (logins: adminConfig: {
-        sshPubKeys = logins.sshPubKeys ++ (lib.attrsets.attrValues adminConfig.sshPubKeys);
-        wireguardDevices = logins.wireguardDevices ++ (if adminConfig ? "wireguardDevices" then adminConfig.wireguardDevices else []);
-      }) { sshPubKeys = []; wireguardDevices = []; } (lib.attrsets.attrValues admins);
+      admins =
+        lib.lists.foldl
+          (logins: adminConfig: {
+            sshPubKeys = logins.sshPubKeys ++ (lib.attrsets.attrValues adminConfig.sshPubKeys);
+            wireguardDevices =
+              logins.wireguardDevices
+              ++ (if adminConfig ? "wireguardDevices" then adminConfig.wireguardDevices else [ ]);
+          })
+          {
+            sshPubKeys = [ ];
+            wireguardDevices = [ ];
+          }
+          (lib.attrsets.attrValues admins);
       robots.sshPubKeys = lib.attrsets.attrValues robots;
     };
   };

modules/backups/default.nix

@@ -0,0 +1,266 @@
+{
+  flake,
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  utils = import "${flake.inputs.nixpkgs}/nixos/lib/utils.nix" { inherit lib; inherit config; inherit pkgs; };
+  # Type for a valid systemd unit option. Needed for correctly passing "timerConfig" to "systemd.timers"
+  inherit (utils.systemdUtils.unitOptions) unitOption;
+in {
+  options.pub-solar-os.backups = {
+    stores =
+      with lib;
+      mkOption {
+        description = ''
+          Periodic backups to create with Restic.
+        '';
+        type = types.attrsOf (
+          types.submodule (
+            { name, ... }:
+            {
+              options = {
+                passwordFile = mkOption {
+                  type = types.str;
+                  description = ''
+                    Read the repository password from a file.
+                  '';
+                  example = "/etc/nixos/restic-password";
+                };
+
+                repository = mkOption {
+                  type = with types; nullOr str;
+                  default = null;
+                  description = ''
+                    repository to backup to.
+                  '';
+                  example = "sftp:backup@192.168.1.100:/backups/${name}";
+                };
+              };
+            }
+          )
+        );
+
+        default = { };
+        example = {
+          remotebackup = {
+            repository = "sftp:backup@host:/backups/home";
+            passwordFile = "/etc/nixos/secrets/restic-password";
+          };
+        };
+      };
+
+    backups =
+      with lib;
+      mkOption {
+        description = ''
+          Periodic backups to create with Restic.
+        '';
+        type = types.attrsOf (
+          types.submodule (
+            { name, ... }:
+            {
+              options = {
+                paths = mkOption {
+                  # This is nullable for legacy reasons only. We should consider making it a pure listOf
+                  # after some time has passed since this comment was added.
+                  type = types.nullOr (types.listOf types.str);
+                  default = [ ];
+                  description = ''
+                    Which paths to backup, in addition to ones specified via
+                    `dynamicFilesFrom`.  If null or an empty array and
+                    `dynamicFilesFrom` is also null, no backup command will be run.
+                     This can be used to create a prune-only job.
+                  '';
+                  example = [
+                    "/var/lib/postgresql"
+                    "/home/user/backup"
+                  ];
+                };
+
+                exclude = mkOption {
+                  type = types.listOf types.str;
+                  default = [ ];
+                  description = ''
+                    Patterns to exclude when backing up. See
+                    https://restic.readthedocs.io/en/latest/040_backup.html#excluding-files for
+                    details on syntax.
+                  '';
+                  example = [
+                    "/var/cache"
+                    "/home/*/.cache"
+                    ".git"
+                  ];
+                };
+
+                timerConfig = mkOption {
+                  type = types.nullOr (types.attrsOf unitOption);
+                  default = {
+                    OnCalendar = "daily";
+                    Persistent = true;
+                  };
+                  description = ''
+                    When to run the backup. See {manpage}`systemd.timer(5)` for
+                    details. If null no timer is created and the backup will only
+                    run when explicitly started.
+                  '';
+                  example = {
+                    OnCalendar = "00:05";
+                    RandomizedDelaySec = "5h";
+                    Persistent = true;
+                  };
+                };
+
+                user = mkOption {
+                  type = types.str;
+                  default = "root";
+                  description = ''
+                    As which user the backup should run.
+                  '';
+                  example = "postgresql";
+                };
+
+                extraBackupArgs = mkOption {
+                  type = types.listOf types.str;
+                  default = [ ];
+                  description = ''
+                    Extra arguments passed to restic backup.
+                  '';
+                  example = [ "--exclude-file=/etc/nixos/restic-ignore" ];
+                };
+
+                extraOptions = mkOption {
+                  type = types.listOf types.str;
+                  default = [ ];
+                  description = ''
+                    Extra extended options to be passed to the restic --option flag.
+                  '';
+                  example = [ "sftp.command='ssh backup@192.168.1.100 -i /home/user/.ssh/id_rsa -s sftp'" ];
+                };
+
+                initialize = mkOption {
+                  type = types.bool;
+                  default = false;
+                  description = ''
+                    Create the repository if it doesn't exist.
+                  '';
+                };
+
+                pruneOpts = mkOption {
+                  type = types.listOf types.str;
+                  default = [ ];
+                  description = ''
+                    A list of options (--keep-\* et al.) for 'restic forget
+                    --prune', to automatically prune old snapshots.  The
+                    'forget' command is run *after* the 'backup' command, so
+                    keep that in mind when constructing the --keep-\* options.
+                  '';
+                  example = [
+                    "--keep-daily 7"
+                    "--keep-weekly 5"
+                    "--keep-monthly 12"
+                    "--keep-yearly 75"
+                  ];
+                };
+
+                runCheck = mkOption {
+                  type = types.bool;
+                  default = (builtins.length config.pub-solar-os.backups.backups.${name}.checkOpts > 0);
+                  defaultText = literalExpression ''builtins.length config.services.backups.${name}.checkOpts > 0'';
+                  description = "Whether to run the `check` command with the provided `checkOpts` options.";
+                  example = true;
+                };
+
+                checkOpts = mkOption {
+                  type = types.listOf types.str;
+                  default = [ ];
+                  description = ''
+                    A list of options for 'restic check'.
+                  '';
+                  example = [ "--with-cache" ];
+                };
+
+                dynamicFilesFrom = mkOption {
+                  type = with types; nullOr str;
+                  default = null;
+                  description = ''
+                    A script that produces a list of files to back up.  The
+                    results of this command are given to the '--files-from'
+                    option. The result is merged with paths specified via `paths`.
+                  '';
+                  example = "find /home/matt/git -type d -name .git";
+                };
+
+                backupPrepareCommand = mkOption {
+                  type = with types; nullOr str;
+                  default = null;
+                  description = ''
+                    A script that must run before starting the backup process.
+                  '';
+                };
+
+                backupCleanupCommand = mkOption {
+                  type = with types; nullOr str;
+                  default = null;
+                  description = ''
+                    A script that must run after finishing the backup process.
+                  '';
+                };
+
+                package = mkPackageOption pkgs "restic" { };
+
+                createWrapper = lib.mkOption {
+                  type = lib.types.bool;
+                  default = true;
+                  description = ''
+                    Whether to generate and add a script to the system path, that has the same environment variables set
+                    as the systemd service. This can be used to e.g. mount snapshots or perform other opterations, without
+                    having to manually specify most options.
+                  '';
+                };
+              };
+            }
+          )
+        );
+        default = { };
+        example = {
+          localbackup = {
+            paths = [ "/home" ];
+            exclude = [ "/home/*/.cache" ];
+            initialize = true;
+          };
+          remotebackup = {
+            paths = [ "/home" ];
+            extraOptions = [
+              "sftp.command='ssh backup@host -i /etc/nixos/secrets/backup-private-key -s sftp'"
+            ];
+            timerConfig = {
+              OnCalendar = "00:05";
+              RandomizedDelaySec = "5h";
+            };
+          };
+        };
+      };
+  };
+
+  config = {
+    services.restic.backups =
+      let
+        stores = config.pub-solar-os.backups.stores;
+        backups = config.pub-solar-os.backups.backups;
+
+        storeNames = builtins.attrNames stores;
+        backupNames = builtins.attrNames backups;
+
+        createBackups =
+          backupName:
+          map (storeName: {
+            name = "${backupName}-${storeName}";
+            value = stores."${storeName}" // backups."${backupName}";
+          }) storeNames;
+
+      in
+      builtins.listToAttrs (lib.lists.flatten (map createBackups backupNames));
+  };
+}

modules/caddy/default.nix

@@ -0,0 +1,22 @@
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  services.caddy = {
+    enable = lib.mkForce true;
+    group = config.pub-solar-os.authentication.robot.username;
+    email = config.pub-solar-os.adminEmail;
+    enableReload = true;
+    globalConfig = lib.mkForce ''
+      grace_period 60s
+    '';
+  };
+  networking.firewall.allowedTCPPorts = [
+    80
+    443
+  ];
+}

modules/collabora/default.nix

@@ -1,10 +1,12 @@
-{ config
-, lib
-, pkgs
-, self
-, ...
-}: {
-  services.nginx.virtualHosts."collabora.pub.solar" = {
+{
+  config,
+  lib,
+  pkgs,
+  self,
+  ...
+}:
+{
+  services.nginx.virtualHosts."collabora.${config.pub-solar-os.networking.domain}" = {
     enableACME = true;
     forceSSL = true;
 
@@ -24,16 +26,14 @@
       containers."collabora" = {
         image = "collabora/code";
         autoStart = true;
-        ports = [
-          "127.0.0.1:9980:9980"
-        ];
+        ports = [ "127.0.0.1:9980:9980" ];
         extraOptions = [
           "--cap-add=MKNOD"
           "--pull=always"
         ];
         environment = {
-          server_name = "collabora.pub.solar";
-          aliasgroup1 = "https://cloud.pub.solar:443";
+          server_name = "collabora.${config.pub-solar-os.networking.domain}";
+          aliasgroup1 = "https://cloud.${config.pub-solar-os.networking.domain}:443";
           DONT_GEN_SSL_CERT = "1";
           extra_params = "--o:ssl.enable=false --o:ssl.termination=true";
           SLEEPFORDEBUGGER = "0";

modules/core/default.nix

@@ -0,0 +1,62 @@
+{
+  pkgs,
+  config,
+  flake,
+  lib,
+  ...
+}:
+{
+  imports = [
+    ./nix.nix
+    ./networking.nix
+    ./terminal-tooling.nix
+    ./users.nix
+  ];
+
+  options.pub-solar-os =
+    let
+      inherit (lib) mkOption types;
+    in
+    {
+      adminEmail = mkOption {
+        description = "Email address to use for administrative stuff like ACME";
+        type = types.str;
+        default = "admins@pub.solar";
+      };
+
+      privacyPolicyUrl = mkOption {
+        description = "URL of the privacy policy. Used to link there from applications";
+        type = types.str;
+        default = "https://pub.solar/privacy";
+      };
+
+      imprintUrl = mkOption {
+        description = "URL of the imprint. Used to link there from applications";
+        type = types.str;
+        default = "https://pub.solar/about";
+      };
+    };
+
+  config = {
+    environment = {
+      # Just a couple of global packages to make our lives easier
+      systemPackages = with pkgs; [
+        git
+        vim
+        wget
+      ];
+    };
+
+    # Select internationalization properties
+    console = {
+      font = "Lat2-Terminus16";
+      keyMap = "us";
+    };
+
+    time.timeZone = "Etc/UTC";
+
+    home-manager.users.${config.pub-solar-os.authentication.username} = {
+      home.stateVersion = "23.05";
+    };
+  };
+}

modules/core/networking.nix

@@ -0,0 +1,80 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+{
+  options.pub-solar-os.networking =
+    let
+      inherit (lib) mkOption types;
+    in
+    {
+      domain = mkOption {
+        description = "domain on which all services should run. This defaults to pub.solar";
+        type = types.str;
+        default = "pub.solar";
+      };
+
+      defaultInterface = mkOption {
+        description = "Network interface which should be used as the default internet-connected one";
+        type = types.nullOr types.str;
+      };
+    };
+
+  config = {
+
+    # Don't expose SSH via public interfaces
+    networking.firewall.interfaces.wg-ssh.allowedTCPPorts = [ 22 ];
+
+    networking.domain = config.pub-solar-os.networking.domain;
+
+    networking.hosts = {
+      "10.7.6.1" = [ "nachtigall.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.2" = [ "flora-6.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.3" = [ "metronom.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.4" = [ "tankstelle.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:1::" = [ "nachtigall.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:2::" = [ "flora-6.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:3::" = [ "metronom.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:4::" = [ "tankstelle.wg.${config.pub-solar-os.networking.domain}" ];
+    };
+
+    services.openssh = {
+      enable = true;
+      openFirewall = lib.mkDefault false;
+      settings = {
+        PermitRootLogin = "prohibit-password";
+        PasswordAuthentication = false;
+        # Add back openssh MACs that got removed from defaults
+        # for backwards compatibility
+        #
+        # NixOS default openssh MACs have changed to use "encrypt-then-mac" only.
+        # This breaks compatibilty with clients that do not offer these MACs. For
+        # compatibility reasons, we add back the old defaults.
+        # See: https://github.com/NixOS/nixpkgs/pull/231165
+        #
+        # https://blog.stribik.technology/2015/01/04/secure-secure-shell.html
+        # https://infosec.mozilla.org/guidelines/openssh#modern-openssh-67
+        Macs = [
+          "hmac-sha2-512-etm@openssh.com"
+          "hmac-sha2-256-etm@openssh.com"
+          "umac-128-etm@openssh.com"
+          "hmac-sha2-512"
+          "hmac-sha2-256"
+          "umac-128@openssh.com"
+        ];
+      };
+    };
+
+    services.resolved = {
+      enable = true;
+      extraConfig = ''
+        DNS=193.110.81.0#dns0.eu 185.253.5.0#dns0.eu 2a0f:fc80::#dns0.eu 2a0f:fc81::#dns0.eu 9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
+        FallbackDNS=5.1.66.255#dot.ffmuc.net 185.150.99.255#dot.ffmuc.net 2001:678:e68:f000::#dot.ffmuc.net 2001:678:ed0:f000::#dot.ffmuc.net
+        Domains=~.
+        DNSOverTLS=yes
+      '';
+    };
+  };
+}

modules/core/nix.nix

@@ -1,11 +1,12 @@
-{ config
-, pkgs
-, lib
-, flake
-, ...
-}: {
-  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
-  ];
+{
+  config,
+  pkgs,
+  lib,
+  flake,
+  ...
+}:
+{
+  nixpkgs.config = lib.mkDefault { allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [ ]; };
 
   nix = {
     # Use default version alias for nix package
@@ -25,7 +26,10 @@
       # Prevents impurities in builds
       sandbox = true;
       # Give root and @wheel special privileges with nix
-      trusted-users = [ "root" "@wheel" ];
+      trusted-users = [
+        "root"
+        "@wheel"
+      ];
       # Allow only group wheel to connect to the nix daemon
       allowed-users = [ "@wheel" ];
     };
@@ -41,7 +45,7 @@
 
     nixPath = [
       "nixpkgs=${flake.inputs.nixpkgs}"
-      "nixos-config=${../lib/compat/nixos}"
+      "nixos-config=${../../lib/compat/nixos}"
       "home-manager=${flake.inputs.home-manager}"
     ];
   };

modules/core/terminal-tooling.nix

@@ -1,5 +1,6 @@
-{ flake, ... }: {
-  home-manager.users.${flake.self.username} = {
+{ flake, config, ... }:
+{
+  home-manager.users.${config.pub-solar-os.authentication.username} = {
     programs.git.enable = true;
     programs.starship.enable = true;
     programs.bash.enable = true;

modules/core/users.nix

@@ -0,0 +1,79 @@
+{
+  flake,
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+{
+  options.pub-solar-os.authentication =
+    let
+      inherit (lib) mkOption types;
+    in
+    {
+      username = mkOption {
+        description = "Username for the adminstrative user";
+        type = types.str;
+        default = flake.self.username;
+      };
+
+      sshPubKeys = mkOption {
+        description = "SSH Keys that should have administrative root access";
+        type = types.listOf types.str;
+        default = flake.self.logins.admins.sshPubKeys;
+      };
+
+      root.initialHashedPassword = mkOption {
+        description = "Hashed password of the root account";
+        type = types.str;
+        default = "$y$j9T$bIN6GjQkmPMllOcQsq52K0$q0Z5B5.KW/uxXK9fItB8H6HO79RYAcI/ZZdB0Djke32";
+      };
+
+      robot.username = mkOption {
+        description = "username for the robot user";
+        type = types.str;
+        default = "hakkonaut";
+      };
+
+      robot.sshPubKeys = mkOption {
+        description = "SSH Keys to use for the robot user";
+        type = types.listOf types.str;
+        default = flake.self.logins.robots.sshPubKeys;
+      };
+    };
+
+  config = {
+    users.users.${config.pub-solar-os.authentication.username} = {
+      name = config.pub-solar-os.authentication.username;
+      group = config.pub-solar-os.authentication.username;
+      extraGroups = [
+        "wheel"
+        "docker"
+      ];
+      isNormalUser = true;
+      openssh.authorizedKeys.keys = config.pub-solar-os.authentication.sshPubKeys;
+    };
+    users.groups.${config.pub-solar-os.authentication.username} = { };
+
+    # TODO: Remove when we stop locking ourselves out.
+    users.users.root.openssh.authorizedKeys.keys = config.pub-solar-os.authentication.sshPubKeys;
+
+    users.users.${config.pub-solar-os.authentication.robot.username} = {
+      description = "CI and automation user";
+      home = "/home/${config.pub-solar-os.authentication.robot.username}";
+      createHome = true;
+      useDefaultShell = true;
+      uid = 998;
+      group = "${config.pub-solar-os.authentication.robot.username}";
+      isSystemUser = true;
+      openssh.authorizedKeys.keys = config.pub-solar-os.authentication.robot.sshPubKeys;
+    };
+
+    users.groups.${config.pub-solar-os.authentication.robot.username} = { };
+
+    users.users.root.initialHashedPassword =
+      config.pub-solar-os.authentication.root.initialHashedPassword;
+
+    security.sudo.wheelNeedsPassword = false;
+  };
+}

modules/coturn/default.nix

@@ -1,4 +1,9 @@
-{ flake, config, lib, ... }:
+{
+  flake,
+  config,
+  lib,
+  ...
+}:
 {
   age.secrets."coturn-static-auth-secret" = {
     file = "${flake.self}/secrets/coturn-static-auth-secret.age";
@@ -14,13 +19,17 @@
     max-port = 50000;
     use-auth-secret = true;
     static-auth-secret-file = "/run/agenix/coturn-static-auth-secret";
-    realm = "turn.pub.solar";
+    realm = "turn.${config.pub-solar-os.networking.domain}";
     cert = "${config.security.acme.certs.${realm}.directory}/full.pem";
     pkey = "${config.security.acme.certs.${realm}.directory}/key.pem";
     extraConfig =
       let
-        externalIPv4s = lib.strings.concatMapStringsSep "\n" ({ address, ... }: "external-ip=${address}") config.networking.interfaces.enp35s0.ipv4.addresses;
-        externalIPv6s = lib.strings.concatMapStringsSep "\n" ({ address, ... }: "external-ip=${address}") config.networking.interfaces.enp35s0.ipv6.addresses;
+        externalIPv4s = lib.strings.concatMapStringsSep "\n" (
+          { address, ... }: "external-ip=${address}"
+        ) config.networking.interfaces.enp35s0.ipv4.addresses;
+        externalIPv6s = lib.strings.concatMapStringsSep "\n" (
+          { address, ... }: "external-ip=${address}"
+        ) config.networking.interfaces.enp35s0.ipv6.addresses;
       in
       ''
         ${externalIPv4s}
@@ -61,35 +70,42 @@
         denied-peer-ip=fc00::-fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
         denied-peer-ip=fe80::-febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff
       '';
-
   };
 
   networking.firewall = {
     interfaces.enp35s0 =
       let
-        range = with config.services.coturn; [{
-          from = min-port;
-          to = max-port;
-        }];
+        range = with config.services.coturn; [
+          {
+            from = min-port;
+            to = max-port;
+          }
+        ];
       in
       {
         allowedUDPPortRanges = range;
-        allowedUDPPorts = [ 3478 5349 ];
+        allowedUDPPorts = [
+          3478
+          5349
+        ];
         allowedTCPPortRanges = [ ];
-        allowedTCPPorts = [ 3478 5349 ];
+        allowedTCPPorts = [
+          3478
+          5349
+        ];
       };
   };
 
   # get a certificate
   security.acme.certs.${config.services.coturn.realm} = {
-    /* insert here the right configuration to obtain a certificate */
+    # insert here the right configuration to obtain a certificate
     postRun = "systemctl restart coturn.service";
     group = "turnserver";
   };
   services.nginx.virtualHosts.${config.services.coturn.realm} = {
     enableACME = true;
     addSSL = true;
-    globalRedirect = "pub.solar";
+    globalRedirect = "${config.pub-solar-os.networking.domain}";
   };
 
   users.users.nginx.extraGroups = [ "turnserver" ];

modules/default.nix

@@ -1,39 +0,0 @@
-{ self, ... }:
-{
-  flake = {
-    nixosModules = rec {
-      nix = import ./nix.nix;
-      networking = import ./networking.nix;
-      unlock-zfs-on-boot = import ./unlock-zfs-on-boot.nix;
-      docker = import ./docker.nix;
-      terminal-tooling = import ./terminal-tooling.nix;
-      users = import ./users.nix;
-
-      core = { pkgs, ... }: {
-        imports = [
-          nix
-          networking
-          terminal-tooling
-          users
-        ];
-
-        environment = {
-          # Just a couple of global packages to make our lives easier
-          systemPackages = with pkgs; [ git vim wget ];
-        };
-
-        # Select internationalization properties
-        console = {
-          font = "Lat2-Terminus16";
-          keyMap = "us";
-        };
-
-        time.timeZone = "Etc/UTC";
-
-        home-manager.users.${self.username} = {
-          home.stateVersion = "23.05";
-        };
-      };
-    };
-  };
-}

modules/docker/default.nix

@@ -1,4 +1,5 @@
-{ pkgs, ... }: {
+{ pkgs, ... }:
+{
   virtualisation.docker = {
     enable = true;
     extraOptions = ''

modules/drone/default.nix

@@ -1,9 +1,11 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
   age.secrets.drone-secrets = {
     file = "${flake.self}/secrets/drone-secrets.age";
     mode = "600";
@@ -26,9 +28,16 @@
 
   users.groups.drone = { };
 
-  systemd.tmpfiles.rules = [
-    "d '/var/lib/drone-db' 0750 drone drone - -"
-  ];
+  systemd.tmpfiles.rules = [ "d '/var/lib/drone-db' 0750 drone drone - -" ];
+
+  services.caddy.virtualHosts."ci.${config.pub-solar-os.networking.domain}" = {
+    logFormat = lib.mkForce ''
+      output discard
+    '';
+    extraConfig = ''
+      reverse_proxy :4000
+    '';
+  };
 
   systemd.services."docker-network-drone" =
     let
@@ -57,62 +66,48 @@
         image = "postgres:14";
         autoStart = true;
         user = "994";
-        volumes = [
-          "/var/lib/drone-db:/var/lib/postgresql/data"
-        ];
-        extraOptions = [
-          "--network=drone-net"
-        ];
-        environmentFiles = [
-          config.age.secrets.drone-db-secrets.path
-        ];
+        volumes = [ "/var/lib/drone-db:/var/lib/postgresql/data" ];
+        extraOptions = [ "--network=drone-net" ];
+        environmentFiles = [ config.age.secrets.drone-db-secrets.path ];
       };
       containers."drone-server" = {
         image = "drone/drone:2";
         autoStart = true;
         user = "994";
-        ports = [
-          "127.0.0.1:4000:80"
-        ];
+        ports = [ "127.0.0.1:4000:80" ];
         dependsOn = [ "drone-db" ];
         extraOptions = [
           "--network=drone-net"
           "--pull=always"
-          "--add-host=nachtigall.pub.solar:10.7.6.1"
+          "--add-host=nachtigall.${config.pub-solar-os.networking.domain}:10.7.6.1"
         ];
         environment = {
-          DRONE_GITEA_SERVER = "https://git.pub.solar";
-          DRONE_SERVER_HOST = "ci.pub.solar";
+          DRONE_GITEA_SERVER = "https://git.${config.pub-solar-os.networking.domain}";
+          DRONE_SERVER_HOST = "ci.${config.pub-solar-os.networking.domain}";
           DRONE_SERVER_PROTO = "https";
           DRONE_DATABASE_DRIVER = "postgres";
         };
-        environmentFiles = [
-          config.age.secrets.drone-secrets.path
-        ];
+        environmentFiles = [ config.age.secrets.drone-secrets.path ];
       };
       containers."drone-docker-runner" = {
         image = "drone/drone-runner-docker:1";
         autoStart = true;
         # needs to run as root
         #user = "994";
-        volumes = [
-          "/var/run/docker.sock:/var/run/docker.sock"
-        ];
+        volumes = [ "/var/run/docker.sock:/var/run/docker.sock" ];
         dependsOn = [ "drone-db" ];
         extraOptions = [
           "--network=drone-net"
           "--pull=always"
-          "--add-host=nachtigall.pub.solar:10.7.6.1"
+          "--add-host=nachtigall.${config.pub-solar-os.networking.domain}:10.7.6.1"
         ];
         environment = {
-          DRONE_RPC_HOST = "ci.pub.solar";
+          DRONE_RPC_HOST = "ci.${config.pub-solar-os.networking.domain}";
           DRONE_RPC_PROTO = "https";
           DRONE_RUNNER_CAPACITY = "2";
           DRONE_RUNNER_NAME = "flora-6-docker-runner";
         };
-        environmentFiles = [
-          config.age.secrets.drone-secrets.path
-        ];
+        environmentFiles = [ config.age.secrets.drone-secrets.path ];
       };
     };
   };

modules/forgejo-actions-runner/default.nix

@@ -1,12 +1,14 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
   age.secrets.forgejo-actions-runner-token = {
     file = "${flake.self}/secrets/forgejo-actions-runner-token.age";
-    mode = "644";
+    mode = "440";
   };
 
   # Trust docker bridge interface traffic
@@ -20,7 +22,7 @@
     isSystemUser = true;
   };
 
-  users.groups.gitea-runner = {};
+  users.groups.gitea-runner = { };
 
   systemd.services."gitea-runner-flora\\x2d6".serviceConfig = {
     DynamicUser = lib.mkForce false;

modules/forgejo/default.nix

@@ -1,9 +1,11 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
   age.secrets.forgejo-database-password = {
     file = "${flake.self}/secrets/forgejo-database-password.age";
     mode = "600";
@@ -29,7 +31,7 @@
     user = "gitea";
   };
 
-  services.nginx.virtualHosts."git.pub.solar" = {
+  services.nginx.virtualHosts."git.${config.pub-solar-os.networking.domain}" = {
     enableACME = true;
     forceSSL = true;
 
@@ -52,7 +54,7 @@
     isSystemUser = true;
   };
 
-  users.groups.gitea = {};
+  users.groups.gitea = { };
 
   # Expose SSH port only for forgejo SSH
   networking.firewall.interfaces.enp35s0.allowedTCPPorts = [ 2223 ];
@@ -78,8 +80,8 @@
       DEFAULT.APP_NAME = "pub.solar git server";
 
       server = {
-        ROOT_URL = "https://git.pub.solar";
-        DOMAIN = "git.pub.solar";
+        ROOT_URL = "https://git.${config.pub-solar-os.networking.domain}";
+        DOMAIN = "git.${config.pub-solar-os.networking.domain}";
         HTTP_ADDR = "127.0.0.1";
         HTTP_PORT = 3000;
         START_SSH_SERVER = true;
@@ -92,7 +94,7 @@
       mailer = {
         ENABLED = true;
         PROTOCOL = "smtps";
-        SMTP_ADDR = "mail.greenbaum.zone";
+        SMTP_ADDR = "mail.pub.solar";
         SMTP_PORT = 465;
         FROM = ''"pub.solar git server" <forgejo@pub.solar>'';
         USER = "admins@pub.solar";
@@ -123,7 +125,7 @@
 
       # https://forgejo.org/docs/latest/admin/config-cheat-sheet/#webhook-webhook
       webhook = {
-        ALLOWED_HOST_LIST = "loopback,external,*.pub.solar";
+        ALLOWED_HOST_LIST = "loopback,external,*.${config.pub-solar-os.networking.domain}";
       };
 
       # See https://forgejo.org/docs/latest/admin/actions/
@@ -161,7 +163,7 @@
   # gitea gitconfig
   programs.gnupg.agent = {
     enable = true;
-    pinentryFlavor = "curses";
+    pinentryPackage = pkgs.pinentry-curses;
   };
   # Required to make gpg work without a graphical environment?
   # otherwise generating a new gpg key fails with this error:
@@ -171,39 +173,13 @@
     GPG_TTY = "$(tty)";
   };
 
-  services.restic.backups.forgejo-droppie = {
-    paths = [
-      "/var/lib/forgejo"
-      "/tmp/forgejo-backup.sql"
-    ];
-    timerConfig = {
-      OnCalendar = "*-*-* 02:00:00 Etc/UTC";
-      # droppie will be offline if nachtigall misses the timer
-      Persistent = false;
-    };
-    initialize = true;
-    passwordFile = config.age.secrets."restic-repo-droppie".path;
-    repository = "sftp:yule@droppie.b12f.io:/media/internal/pub.solar";
-    backupPrepareCommand = ''
-      ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d gitea > /tmp/forgejo-backup.sql
-    '';
-    backupCleanupCommand = ''
-      rm /tmp/forgejo-backup.sql
-    '';
-    pruneOpts = [
-      "--keep-daily 7"
-      "--keep-weekly 4"
-      "--keep-monthly 3"
-    ];
-  };
-
   services.restic.backups.forgejo-storagebox = {
     paths = [
       "/var/lib/forgejo"
       "/tmp/forgejo-backup.sql"
     ];
     timerConfig = {
-      OnCalendar = "*-*-* 04:20:00 Etc/UTC";
+      OnCalendar = "*-*-* 00:00:00 Etc/UTC";
     };
     initialize = true;
     passwordFile = config.age.secrets."restic-repo-storagebox".path;

modules/grafana/default.nix

@@ -1,22 +1,24 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
   age.secrets.grafana-admin-password = {
     file = "${flake.self}/secrets/grafana-admin-password.age";
-    mode = "644";
+    mode = "440";
     owner = "grafana";
   };
   age.secrets.grafana-smtp-password = {
     file = "${flake.self}/secrets/grafana-smtp-password.age";
-    mode = "644";
+    mode = "440";
     owner = "grafana";
   };
   age.secrets.grafana-keycloak-client-secret = {
     file = "${flake.self}/secrets/grafana-keycloak-client-secret.age";
-    mode = "644";
+    mode = "440";
     owner = "grafana";
   };
 
@@ -33,6 +35,15 @@
     };
   };
 
+  services.caddy.virtualHosts."grafana.${config.pub-solar-os.networking.domain}" = {
+    logFormat = lib.mkForce ''
+      output discard
+    '';
+    extraConfig = ''
+      reverse_proxy :${toString config.services.grafana.settings.server.http_port}
+    '';
+  };
+
   services.grafana = {
     enable = true;
     settings = {
@@ -42,13 +53,13 @@
         # and Port
         http_port = 3000;
         # Grafana needs to know on which domain and URL it's running
-        domain = "grafana.pub.solar";
-        root_url = "https://grafana.pub.solar";
+        domain = "grafana.${config.pub-solar-os.networking.domain}";
+        root_url = "https://grafana.${config.pub-solar-os.networking.domain}";
         enable_gzip = true;
       };
       smtp = {
         enabled = true;
-        host = "mail.greenbaum.zone:465";
+        host = "mail.pub.solar:465";
         user = "admins@pub.solar";
         password = "\$__file{${config.age.secrets.grafana-smtp-password.path}}";
         from_address = "no-reply@pub.solar";
@@ -69,9 +80,9 @@
         email_attribute_path = "email";
         login_attribute_path = "preferred_username";
         name_attribute_path = "full_name";
-        auth_url = "https://auth.pub.solar/realms/pub.solar/protocol/openid-connect/auth";
-        token_url = "https://auth.pub.solar/realms/pub.solar/protocol/openid-connect/token";
-        api_url = "https://auth.pub.solar/realms/pub.solar/protocol/openid-connect/userinfo";
+        auth_url = "https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}/protocol/openid-connect/auth";
+        token_url = "https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}/protocol/openid-connect/token";
+        api_url = "https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}/protocol/openid-connect/userinfo";
         role_attribute_path = "contains(roles[*], 'admin') && 'GrafanaAdmin' || 'Viewer'";
         allow_assign_grafana_admin = true;
       };

modules/grafana/grafana-dashboards/synapse.json

@@ -70,9 +70,7 @@
       "icon": "external link",
       "includeVars": true,
       "keepTime": true,
-      "tags": [
-        "matrix"
-      ],
+      "tags": ["matrix"],
       "title": "Dashboards",
       "type": "dashboards"
     }
@@ -4313,9 +4311,7 @@
                   "id": "byNames",
                   "options": {
                     "mode": "exclude",
-                    "names": [
-                      "libera.chat "
-                    ],
+                    "names": ["libera.chat "],
                     "prefix": "All except:",
                     "readOnly": true
                   }
@@ -4435,9 +4431,7 @@
                   "id": "byNames",
                   "options": {
                     "mode": "exclude",
-                    "names": [
-                      "libera.chat"
-                    ],
+                    "names": ["libera.chat"],
                     "prefix": "All except:",
                     "readOnly": true
                   }
@@ -13266,9 +13260,7 @@
   "refresh": false,
   "schemaVersion": 37,
   "style": "dark",
-  "tags": [
-    "matrix"
-  ],
+  "tags": ["matrix"],
   "templating": {
     "list": [
       {
@@ -13453,17 +13445,7 @@
       "2h",
       "1d"
     ],
-    "time_options": [
-      "5m",
-      "15m",
-      "1h",
-      "6h",
-      "12h",
-      "24h",
-      "2d",
-      "7d",
-      "30d"
-    ]
+    "time_options": ["5m", "15m", "1h", "6h", "12h", "24h", "2d", "7d", "30d"]
   },
   "timezone": "",
   "title": "Synapse",

modules/keycloak/default.nix

@@ -0,0 +1,83 @@
+{
+  flake,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  options.pub-solar-os.auth = with lib; {
+    enable = mkEnableOption "Enable keycloak to run on the node";
+
+    realm = mkOption {
+      description = "Name of the realm";
+      type = types.str;
+      default = config.pub-solar-os.networking.domain;
+    };
+
+    database-password-file = mkOption {
+      description = "Database password file path";
+      type = types.str;
+    };
+  };
+
+  config = lib.mkIf config.pub-solar-os.auth.enable {
+    services.nginx.virtualHosts."auth.${config.pub-solar-os.networking.domain}" = {
+      enableACME = true;
+      forceSSL = true;
+
+      locations = {
+        "= /" = {
+          extraConfig = ''
+            return 302 /realms/${config.pub-solar-os.auth.realm}/account;
+          '';
+        };
+
+        "/" = {
+          extraConfig = ''
+            proxy_pass http://127.0.0.1:8080;
+            proxy_buffer_size 8k;
+          '';
+        };
+      };
+    };
+
+    # keycloak
+    services.keycloak = {
+      enable = true;
+      database.passwordFile = config.pub-solar-os.auth.database-password-file;
+      settings = {
+        hostname = "auth.${config.pub-solar-os.networking.domain}";
+        http-host = "127.0.0.1";
+        http-port = 8080;
+        proxy = "edge";
+      };
+      themes = {
+        "pub.solar" =
+          flake.inputs.keycloak-theme-pub-solar.legacyPackages.${pkgs.system}.keycloak-theme-pub-solar;
+      };
+      plugins = [
+        flake.inputs.keycloak-event-listener.packages.${pkgs.system}.keycloak-event-listener
+      ];
+    };
+
+    pub-solar-os.backups.backups.keycloak = {
+      paths = [ "/tmp/keycloak-backup.sql" ];
+      timerConfig = {
+        OnCalendar = "*-*-* 03:00:00 Etc/UTC";
+      };
+      initialize = true;
+      backupPrepareCommand = ''
+        ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d keycloak > /tmp/keycloak-backup.sql
+      '';
+      backupCleanupCommand = ''
+        rm /tmp/keycloak-backup.sql
+      '';
+      pruneOpts = [
+        "--keep-daily 7"
+        "--keep-weekly 4"
+        "--keep-monthly 3"
+      ];
+    };
+  };
+}

modules/loki/default.nix

@@ -0,0 +1,134 @@
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  # Only expose loki port via wireguard interface
+  networking.firewall.interfaces.wg-ssh.allowedTCPPorts = [ 3100 ];
+
+  # source: https://gist.github.com/rickhull/895b0cb38fdd537c1078a858cf15d63e
+  # https://grafana.com/docs/loki/latest/configure/examples/#1-local-configuration-exampleyaml
+  services.loki = {
+    enable = true;
+    configuration = {
+      server.http_listen_port = 3100;
+      auth_enabled = false;
+      common = {
+        ring = {
+          instance_interface_names = [ "wg-ssh" ];
+          instance_enable_ipv6 = true;
+          kvstore = {
+            store = "inmemory";
+          };
+        };
+        replication_factor = 1;
+        path_prefix = "/data/loki";
+        storage = {
+          filesystem = {
+            chunks_directory = "chunks/";
+            rules_directory = "rules/";
+          };
+        };
+      };
+      ingester = {
+        chunk_encoding = "snappy";
+        chunk_idle_period = "1h";
+      };
+      query_range = {
+        results_cache = {
+          cache = {
+            embedded_cache = {
+              enabled = true;
+              max_size_mb = 500;
+            };
+          };
+        };
+      };
+      chunk_store_config = {
+        chunk_cache_config = {
+          embedded_cache = {
+            enabled = true;
+            max_size_mb = 500;
+            ttl = "24h";
+          };
+        };
+      };
+      # Keep logs for 4 weeks
+      # https://grafana.com/docs/loki/latest/operations/storage/retention/
+      limits_config = {
+        retention_period = "4w";
+        split_queries_by_interval = "0";
+      };
+      compactor = {
+        compaction_interval = "10m";
+        delete_request_store = "filesystem";
+        retention_enabled = true;
+        retention_delete_delay = "2h";
+        retention_delete_worker_count = 150;
+      };
+      schema_config = {
+        configs = [
+          {
+            from = "2020-05-15";
+            store = "boltdb-shipper";
+            object_store = "filesystem";
+            schema = "v11";
+            index = {
+              prefix = "index_";
+              period = "24h";
+            };
+          }
+          {
+            from = "2024-05-31";
+            store = "tsdb";
+            object_store = "filesystem";
+            schema = "v13";
+            index = {
+              prefix = "index_";
+              period = "24h";
+            };
+          }
+        ];
+      };
+    };
+  };
+
+  services.promtail = {
+    enable = true;
+    configuration = {
+      server = {
+        http_listen_port = 9080;
+        grpc_listen_port = 0;
+      };
+      positions = {
+        filename = "/tmp/positions.yaml";
+      };
+      clients = [
+        {
+          url = "http://flora-6.wg.pub.solar:${toString config.services.loki.configuration.server.http_listen_port}/loki/api/v1/push";
+        }
+      ];
+      scrape_configs = [
+        {
+          job_name = "journal";
+          journal = {
+            max_age = "24h";
+            labels = {
+              job = "systemd-journal";
+              host = "flora-6";
+            };
+          };
+          relabel_configs = [
+            {
+              source_labels = [ "__journal__systemd_unit" ];
+              target_label = "unit";
+            }
+          ];
+        }
+      ];
+    };
+  };
+}

modules/mail/default.nix

@@ -0,0 +1,70 @@
+{ config, flake, ... }:
+
+{
+  age.secrets.mail-hensoko.file = "${flake.self}/secrets/mail/hensoko.age";
+  age.secrets.mail-teutat3s.file = "${flake.self}/secrets/mail/teutat3s.age";
+  age.secrets.mail-admins.file = "${flake.self}/secrets/mail/admins.age";
+  age.secrets.mail-bot.file = "${flake.self}/secrets/mail/bot.age";
+  age.secrets.mail-crew.file = "${flake.self}/secrets/mail/crew.age";
+  age.secrets.mail-erpnext.file = "${flake.self}/secrets/mail/erpnext.age";
+  age.secrets.mail-hakkonaut.file = "${flake.self}/secrets/mail/hakkonaut.age";
+
+  mailserver = {
+    enable = true;
+    fqdn = "mail.pub.solar";
+    domains = [ "pub.solar" ];
+
+    # A list of all login accounts. To create the password hashes, use
+    # nix-shell -p mkpasswd --run 'mkpasswd -R11 -m bcrypt'
+    loginAccounts = {
+      "hensoko@pub.solar" = {
+        hashedPasswordFile = config.age.secrets.mail-hensoko.path;
+        quota = "2G";
+      };
+      "teutat3s@pub.solar" = {
+        hashedPasswordFile = config.age.secrets.mail-teutat3s.path;
+        quota = "2G";
+      };
+      "admins@pub.solar" = {
+        hashedPasswordFile = config.age.secrets.mail-admins.path;
+        quota = "2G";
+        aliases = [
+          "abuse@pub.solar"
+          "alerts@pub.solar"
+          "forgejo@pub.solar"
+          "keycloak@pub.solar"
+          "mastodon-notifications@pub.solar"
+          "matrix@pub.solar"
+          "postmaster@pub.solar"
+          "nextcloud@pub.solar"
+          "no-reply@pub.solar"
+          "security@pub.solar"
+        ];
+      };
+      "bot@pub.solar" = {
+        hashedPasswordFile = config.age.secrets.mail-bot.path;
+        quota = "2G";
+        aliases = [ "hackernews-bot@pub.solar" ];
+      };
+      "crew@pub.solar" = {
+        hashedPasswordFile = config.age.secrets.mail-crew.path;
+        quota = "2G";
+        aliases = [ "moderation@pub.solar" ];
+      };
+      "erpnext@pub.solar" = {
+        hashedPasswordFile = config.age.secrets.mail-erpnext.path;
+        quota = "2G";
+      };
+      "hakkonaut@pub.solar" = {
+        hashedPasswordFile = config.age.secrets.mail-hakkonaut.path;
+        quota = "2G";
+      };
+    };
+
+    # Use Let's Encrypt certificates. Note that this needs to set up a stripped
+    # down nginx and opens port 80.
+    certificateScheme = "acme-nginx";
+  };
+  security.acme.acceptTerms = true;
+  security.acme.defaults.email = "security@pub.solar";
+}

modules/mailman/default.nix

@@ -1,15 +1,16 @@
-{ flake
-, config
-, lib
-, pkgs
-, ...
+{
+  flake,
+  config,
+  lib,
+  pkgs,
+  ...
 }:
 {
   networking.firewall.allowedTCPPorts = [ 25 ];
 
   users.users.nginx.extraGroups = [ "mailman" ];
 
-  services.nginx.virtualHosts."list.pub.solar" = {
+  services.nginx.virtualHosts."list.${config.pub-solar-os.networking.domain}" = {
     enableACME = true;
     forceSSL = true;
   };
@@ -24,15 +25,15 @@
     enable = true;
     relayDomains = [ "hash:/var/lib/mailman/data/postfix_domains" ];
     # get TLS certs for list.pub.solar from acme
-    sslCert = "/var/lib/acme/list.pub.solar/fullchain.pem";
-    sslKey = "/var/lib/acme/list.pub.solar/key.pem";
+    sslCert = "/var/lib/acme/list.${config.pub-solar-os.networking.domain}/fullchain.pem";
+    sslKey = "/var/lib/acme/list.${config.pub-solar-os.networking.domain}/key.pem";
     config = {
       transport_maps = [ "hash:/var/lib/mailman/data/postfix_lmtp" ];
       local_recipient_maps = [ "hash:/var/lib/mailman/data/postfix_lmtp" ];
     };
     rootAlias = "admins@pub.solar";
     postmasterAlias = "admins@pub.solar";
-    hostname = "list.pub.solar";
+    hostname = "list.${config.pub-solar-os.networking.domain}";
   };
 
   systemd.paths.watcher-acme-ssl-file = {
@@ -40,7 +41,7 @@
     documentation = [ "systemd.path(5)" ];
     partOf = [ "postfix-reload.service" ];
     pathConfig = {
-      PathChanged = "/var/lib/acme/list.pub.solar/fullchain.pem";
+      PathChanged = "/var/lib/acme/list.${config.pub-solar-os.networking.domain}/fullchain.pem";
       Unit = "postfix-reload.service";
     };
     wantedBy = [ "multi-user.target" ];
@@ -64,7 +65,7 @@
     enable = true;
     serve.enable = true;
     hyperkitty.enable = true;
-    webHosts = [ "list.pub.solar" ];
+    webHosts = [ "list.${config.pub-solar-os.networking.domain}" ];
     siteOwner = "admins@pub.solar";
   };
 
@@ -79,28 +80,6 @@
   #  ])
   #'';
 
-  services.restic.backups.mailman-droppie = {
-    paths = [
-      "/var/lib/mailman"
-      "/var/lib/mailman-web/mailman-web.db"
-      "/var/lib/mailman-web/settings_local.json"
-      "/var/lib/postfix/conf/aliases.db"
-    ];
-    timerConfig = {
-      OnCalendar = "*-*-* 02:00:00 Etc/UTC";
-      # droppie will be offline if nachtigall misses the timer
-      Persistent = false;
-    };
-    initialize = true;
-    passwordFile = config.age.secrets."restic-repo-droppie".path;
-    repository = "sftp:yule@droppie.b12f.io:/media/internal/pub.solar";
-    pruneOpts = [
-      "--keep-daily 7"
-      "--keep-weekly 4"
-      "--keep-monthly 3"
-    ];
-  };
-
   services.restic.backups.mailman-storagebox = {
     paths = [
       "/var/lib/mailman"
@@ -109,7 +88,7 @@
       "/var/lib/postfix/conf/aliases.db"
     ];
     timerConfig = {
-      OnCalendar = "*-*-* 04:15:00 Etc/UTC";
+      OnCalendar = "*-*-* 02:00:00 Etc/UTC";
     };
     initialize = true;
     passwordFile = config.age.secrets."restic-repo-storagebox".path;

modules/mastodon/default.nix

@@ -1,4 +1,10 @@
-{ config, pkgs, flake, inputs, ... }:
+{
+  config,
+  pkgs,
+  flake,
+  inputs,
+  ...
+}:
 
 {
   age.secrets."mastodon-secret-key-base" = {
@@ -38,7 +44,7 @@
   services.mastodon = {
     enable = true;
     # Different from WEB_DOMAIN in our case
-    localDomain = "pub.solar";
+    localDomain = "${config.pub-solar-os.networking.domain}";
     enableUnixSocket = true;
     # Number of processes used by the mastodon-streaming service
     # Recommended is the amount of your CPU cores minus one
@@ -54,7 +60,7 @@
     vapidPublicKeyFile = "/run/agenix/mastodon-vapid-public-key";
     smtp = {
       createLocally = false;
-      host = "mail.greenbaum.zone";
+      host = "mail.pub.solar";
       port = 587;
       authenticate = true;
       user = "admins@pub.solar";
@@ -64,11 +70,9 @@
     mediaAutoRemove = {
       olderThanDays = 7;
     };
-    extraEnvFiles = [
-      "/run/agenix/mastodon-extra-env-secrets"
-    ];
+    extraEnvFiles = [ "/run/agenix/mastodon-extra-env-secrets" ];
     extraConfig = {
-      WEB_DOMAIN = "mastodon.pub.solar";
+      WEB_DOMAIN = "mastodon.${config.pub-solar-os.networking.domain}";
       # Defined in ./opensearch.nix
       ES_HOST = "127.0.0.1";
       # S3 File storage (optional)
@@ -77,7 +81,7 @@
       S3_BUCKET = "pub-solar-mastodon";
       S3_REGION = "europe-west-1";
       S3_ENDPOINT = "https://gateway.tardigradeshare.io";
-      S3_ALIAS_HOST = "files.pub.solar";
+      S3_ALIAS_HOST = "files.${config.pub-solar-os.networking.domain}";
       # Translation (optional)
       # -----------------------
       DEEPL_PLAN = "free";
@@ -85,48 +89,21 @@
       # --------------
       OIDC_ENABLED = "true";
       OIDC_DISPLAY_NAME = "pub.solar ID";
-      OIDC_ISSUER = "https://auth.pub.solar/realms/pub.solar";
+      OIDC_ISSUER = "https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}";
       OIDC_DISCOVERY = "true";
       OIDC_SCOPE = "openid,profile,email";
       OIDC_UID_FIELD = "preferred_username";
-      OIDC_REDIRECT_URI = "https://mastodon.pub.solar/auth/auth/openid_connect/callback";
+      OIDC_REDIRECT_URI = "https://mastodon.${config.pub-solar-os.networking.domain}/auth/auth/openid_connect/callback";
       OIDC_SECURITY_ASSUME_EMAIL_IS_VERIFIED = "true";
       # only use OIDC for login / registration
       OMNIAUTH_ONLY = "true";
     };
   };
 
-  services.restic.backups.mastodon-droppie = {
-    paths = [
-      "/tmp/mastodon-backup.sql"
-    ];
-    timerConfig = {
-      OnCalendar = "*-*-* 02:00:00 Etc/UTC";
-      # droppie will be offline if nachtigall misses the timer
-      Persistent = false;
-    };
-    initialize = true;
-    passwordFile = config.age.secrets."restic-repo-droppie".path;
-    repository = "sftp:yule@droppie.b12f.io:/media/internal/pub.solar";
-    backupPrepareCommand = ''
-      ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d mastodon > /tmp/mastodon-backup.sql
-    '';
-    backupCleanupCommand = ''
-      rm /tmp/mastodon-backup.sql
-    '';
-    pruneOpts = [
-      "--keep-daily 7"
-      "--keep-weekly 4"
-      "--keep-monthly 3"
-    ];
-  };
-
   services.restic.backups.mastodon-storagebox = {
-    paths = [
-      "/tmp/mastodon-backup.sql"
-    ];
+    paths = [ "/tmp/mastodon-backup.sql" ];
     timerConfig = {
-      OnCalendar = "*-*-* 04:05:00 Etc/UTC";
+      OnCalendar = "*-*-* 04:00:00 Etc/UTC";
     };
     initialize = true;
     passwordFile = config.age.secrets."restic-repo-storagebox".path;

modules/matrix-irc/default.nix

@@ -1,18 +1,26 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 let
   # Find element in list config.services.matrix-synapse.settings.listeners.*.resources
   # that sets names = "client"
   nameHasClient = name: name == "client";
   resourceHasClient = resource: builtins.any nameHasClient resource.names;
-  listenerWithClient = lib.findFirst
-    (listener:
-      builtins.any resourceHasClient listener.resources)
-    (throw "Found no matrix-synapse.settings.listeners.*.resources.*.names containing string client")
-    config.services.matrix-synapse.settings.listeners
-  ;
+  listenerWithClient =
+    lib.findFirst (listener: builtins.any resourceHasClient listener.resources)
+      (throw "Found no matrix-synapse.settings.listeners.*.resources.*.names containing string client")
+      config.services.matrix-synapse.settings.listeners;
   synapseClientPort = "${toString listenerWithClient.port}";
 in
 {
+  systemd.services.matrix-appservice-irc.serviceConfig.SystemCallFilter = lib.mkForce [
+    "@system-service @pkey"
+    "~@privileged @resources"
+    "@chown"
+  ];
   services.matrix-appservice-irc = {
     enable = true;
     localpart = "irc_bot";
@@ -20,9 +28,9 @@ in
     registrationUrl = "http://localhost:8010";
     settings = {
       homeserver = {
-        domain = "pub.solar";
+        domain = "${config.pub-solar-os.networking.domain}";
         url = "http://127.0.0.1:${synapseClientPort}";
-        media_url = "https://matrix.pub.solar";
+        media_url = "https://matrix.${config.pub-solar-os.networking.domain}";
         enablePresence = false;
       };
       ircService = {
@@ -41,7 +49,11 @@ in
         };
         metrics = {
           enabled = true;
-          remoteUserAgeBuckets = [ "1h" "1d" "1w" ];
+          remoteUserAgeBuckets = [
+            "1h"
+            "1d"
+            "1w"
+          ];
         };
         provisioning = {
           enabled = false;
@@ -117,4 +129,3 @@ in
     };
   };
 }
-

modules/matrix-telegram/default.nix

@@ -1,4 +1,10 @@
-{ flake, lib, config, pkgs, ... }:
+{
+  flake,
+  lib,
+  config,
+  pkgs,
+  ...
+}:
 {
   age.secrets."matrix-mautrix-telegram-env-file" = {
     file = "${flake.self}/secrets/matrix-mautrix-telegram-env-file.age";
@@ -13,7 +19,7 @@
       homeserver = {
         # TODO: Use the port from synapse config
         address = "http://127.0.0.1:8008";
-        domain = "pub.solar";
+        domain = "${config.pub-solar-os.networking.domain}";
         verify_ssl = true;
       };
       appservice = {
@@ -34,7 +40,7 @@
         };
         public = {
           enabled = true;
-          external = "https://matrix.pub.solar/c3c3f34b-29fb-5feb-86e5-98c75ec8214b";
+          external = "https://matrix.${config.pub-solar-os.networking.domain}/c3c3f34b-29fb-5feb-86e5-98c75ec8214b";
           prefix = "/c3c3f34b-29fb-5feb-86e5-98c75ec8214b";
         };
       };
@@ -140,7 +146,7 @@
         username_template = "telegram_{userid}";
 
         permissions = {
-          "pub.solar" = "full";
+          "${config.pub-solar-os.networking.domain}" = "full";
         };
       };
 

modules/matrix/default.nix

@@ -1,7 +1,12 @@
-{ flake, config, pkgs, ... }:
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
 let
-  publicDomain = "matrix.pub.solar";
-  serverDomain = "pub.solar";
+  publicDomain = "matrix.${config.pub-solar-os.networking.domain}";
+  serverDomain = "${config.pub-solar-os.networking.domain}";
 in
 {
   age.secrets."matrix-synapse-signing-key" = {
@@ -40,22 +45,16 @@ in
       };
       listeners = [
         {
-          bind_addresses = [
-            "127.0.0.1"
-          ];
+          bind_addresses = [ "127.0.0.1" ];
           port = 8008;
           resources = [
             {
               compress = true;
-              names = [
-                "client"
-              ];
+              names = [ "client" ];
             }
             {
               compress = false;
-              names = [
-                "federation"
-              ];
+              names = [ "federation" ];
             }
           ];
           tls = false;
@@ -63,29 +62,23 @@ in
           x_forwarded = true;
         }
         {
-          bind_addresses = [
-            "127.0.0.1"
-          ];
+          bind_addresses = [ "127.0.0.1" ];
           port = 8012;
-          resources = [
-            {
-              names = [
-                "metrics"
-              ];
-            }
-          ];
+          resources = [ { names = [ "metrics" ]; } ];
           tls = false;
           type = "metrics";
         }
       ];
 
       account_threepid_delegates.msisdn = "";
-      alias_creation_rules = [{
-        action = "allow";
-        alias = "*";
-        room_id = "*";
-        user_id = "*";
-      }];
+      alias_creation_rules = [
+        {
+          action = "allow";
+          alias = "*";
+          room_id = "*";
+          user_id = "*";
+        }
+      ];
       allow_guest_access = false;
       allow_public_rooms_over_federation = true;
       allow_public_rooms_without_auth = false;
@@ -115,8 +108,6 @@ in
       instance_map = { };
       limit_profile_requests_to_users_who_share_rooms = false;
 
-      log_config = ./matrix-log-config.yaml;
-
       max_spider_size = "10M";
       max_upload_size = "50M";
       media_storage_providers = [ ];
@@ -152,7 +143,7 @@ in
         };
         per_user = {
           burst_count = 5;
-          per_second = 0.003;
+          per_second = 3.0e-3;
         };
       };
       rc_joins = {
@@ -162,7 +153,7 @@ in
         };
         remote = {
           burst_count = 10;
-          per_second = 0.01;
+          per_second = 1.0e-2;
         };
       };
       rc_login = {
@@ -194,17 +185,19 @@ in
       registrations_require_3pid = [ "email" ];
       report_stats = false;
       require_auth_for_profile_requests = false;
-      room_list_publication_rules = [{
-        action = "allow";
-        alias = "*";
-        room_id = "*";
-        user_id = "*";
-      }];
+      room_list_publication_rules = [
+        {
+          action = "allow";
+          alias = "*";
+          room_id = "*";
+          user_id = "*";
+        }
+      ];
 
       signing_key_path = "/run/agenix/matrix-synapse-signing-key";
 
       stream_writers = { };
-      trusted_key_servers = [{ server_name = "matrix.org"; }];
+      trusted_key_servers = [ { server_name = "matrix.org"; } ];
       suppress_key_server_warning = true;
 
       turn_allow_guests = false;
@@ -276,21 +269,19 @@ in
       "redis"
     ];
 
-    plugins = [
-      config.services.matrix-synapse.package.plugins.matrix-synapse-shared-secret-auth
-    ];
+    plugins = [ config.services.matrix-synapse.package.plugins.matrix-synapse-shared-secret-auth ];
+  };
 
-    sliding-sync = {
-      enable = true;
-      settings = {
-        SYNCV3_SERVER = "https://${publicDomain}";
-        SYNCV3_BINDADDR = "127.0.0.1:8011";
-        # The bind addr for Prometheus metrics, which will be accessible at
-        # /metrics at this address
-        SYNCV3_PROM = "127.0.0.1:9100";
-      };
-      environmentFile = config.age.secrets."matrix-synapse-sliding-sync-secret".path;
+  services.matrix-sliding-sync = {
+    enable = true;
+    settings = {
+      SYNCV3_SERVER = "https://${publicDomain}";
+      SYNCV3_BINDADDR = "127.0.0.1:8011";
+      # The bind addr for Prometheus metrics, which will be accessible at
+      # /metrics at this address
+      SYNCV3_PROM = "127.0.0.1:9100";
     };
+    environmentFile = config.age.secrets."matrix-synapse-sliding-sync-secret".path;
   };
 
   services.restic.backups.matrix-synapse-storagebox = {

modules/mediawiki/default.nix

@@ -1,8 +1,9 @@
-{ flake
-, config
-, lib
-, pkgs
-, ...
+{
+  flake,
+  config,
+  lib,
+  pkgs,
+  ...
 }:
 let
   localSettingsPHP = pkgs.writeScript "LocalSettings.php" ''
@@ -26,14 +27,14 @@ let
       ## For more information on customizing the URLs
       ## (like /w/index.php/Page_title to /wiki/Page_title) please see:
       ## https://www.mediawiki.org/wiki/Manual:Short_URL
-      $wgScriptPath = "https://wiki.pub.solar";
+      $wgScriptPath = "https://wiki.${config.pub-solar-os.networking.domain}";
 
       ## https://www.mediawiki.org/wiki/Manual:Short_URL
       ## https://www.mediawiki.org/wiki/Extension:OpenID_Connect#Known_issues
       $wgArticlePath = "/index.php/$1";
 
       ## The protocol and server name to use in fully-qualified URLs
-      $wgServer = "https://wiki.pub.solar";
+      $wgServer = "https://wiki.${config.pub-solar-os.networking.domain}";
 
       ## The URL path to static resources (images, scripts, etc.)
       $wgResourceBasePath = $wgScriptPath;
@@ -143,7 +144,7 @@ let
       $wgPluggableAuth_Config[] = [
           'plugin' => 'OpenIDConnect',
           'data' => [
-              'providerURL' => 'https://auth.pub.solar/realms/pub.solar',
+              'providerURL' => 'https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}',
               'clientID' => 'mediawiki',
               'clientsecret' => trim(file_get_contents('/run/mediawiki/oidc-client-secret'))
           ]
@@ -189,7 +190,7 @@ in
     '';
   };
 
-  services.nginx.virtualHosts."wiki.pub.solar" = {
+  services.nginx.virtualHosts."wiki.${config.pub-solar-os.networking.domain}" = {
     enableACME = true;
     forceSSL = true;
 
@@ -201,20 +202,20 @@ in
     group = "mediawiki";
     inherit uid;
   };
-  users.groups.mediawiki = { inherit gid; };
+  users.groups.mediawiki = {
+    inherit gid;
+  };
 
   virtualisation = {
     oci-containers = {
       backend = "docker";
 
       containers."mediawiki" = {
-        image = "git.pub.solar/pub-solar/mediawiki-oidc-docker:1.41.1";
+        image = "git.pub.solar/pub-solar/mediawiki-oidc-docker:1.42.1";
         user = "1000:${builtins.toString gid}";
         autoStart = true;
 
-        ports = [
-          "127.0.0.1:8293:80"
-        ];
+        ports = [ "127.0.0.1:8293:80" ];
 
         extraOptions = [
           "--add-host=host.docker.internal:host-gateway"

modules/networking.nix

@@ -1,46 +0,0 @@
-{ pkgs, lib, ... }: {
-  # Don't expose SSH via public interfaces
-  networking.firewall.interfaces.wg-ssh.allowedTCPPorts = [ 22 ];
-
-  networking.hosts = {
-      "10.7.6.1" = ["nachtigall.pub.solar"];
-      "10.7.6.2" = ["flora-6.pub.solar"];
-  };
-
-  services.openssh = {
-    enable = true;
-    openFirewall = lib.mkDefault false;
-    settings = {
-      PermitRootLogin = "prohibit-password";
-      PasswordAuthentication = false;
-      # Add back openssh MACs that got removed from defaults
-      # for backwards compatibility
-      #
-      # NixOS default openssh MACs have changed to use "encrypt-then-mac" only.
-      # This breaks compatibilty with clients that do not offer these MACs. For
-      # compatibility reasons, we add back the old defaults.
-      # See: https://github.com/NixOS/nixpkgs/pull/231165
-      # 
-      # https://blog.stribik.technology/2015/01/04/secure-secure-shell.html
-      # https://infosec.mozilla.org/guidelines/openssh#modern-openssh-67
-      Macs = [
-        "hmac-sha2-512-etm@openssh.com"
-        "hmac-sha2-256-etm@openssh.com"
-        "umac-128-etm@openssh.com"
-        "hmac-sha2-512"
-        "hmac-sha2-256"
-        "umac-128@openssh.com"
-      ];
-    };
-  };
-
-  services.resolved = {
-    enable = true;
-    extraConfig = ''
-      DNS=193.110.81.0#dns0.eu 185.253.5.0#dns0.eu 2a0f:fc80::#dns0.eu 2a0f:fc81::#dns0.eu 9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
-      FallbackDNS=5.1.66.255#dot.ffmuc.net 185.150.99.255#dot.ffmuc.net 2001:678:e68:f000::#dot.ffmuc.net 2001:678:ed0:f000::#dot.ffmuc.net
-      Domains=~.
-      DNSOverTLS=yes
-    '';
-  };
-}

modules/nextcloud/default.nix

@@ -1,7 +1,8 @@
-{ config
-, pkgs
-, flake
-, ...
+{
+  config,
+  pkgs,
+  flake,
+  ...
 }:
 {
   age.secrets."nextcloud-secrets" = {
@@ -16,21 +17,20 @@
     owner = "nextcloud";
   };
 
-  services.nginx.virtualHosts."cloud.pub.solar" = {
+  services.nginx.virtualHosts."cloud.${config.pub-solar-os.networking.domain}" = {
     enableACME = true;
     forceSSL = true;
   };
 
   services.nextcloud = {
-    hostName = "cloud.pub.solar";
+    hostName = "cloud.${config.pub-solar-os.networking.domain}";
     home = "/var/lib/nextcloud";
 
     enable = true;
-    package = pkgs.nextcloud28;
+    package = pkgs.nextcloud29;
     https = true;
     secretFile = config.age.secrets."nextcloud-secrets".path; # secret
     maxUploadSize = "1G";
-    skeletonDirectory = "./nextcloud-skeleton";
 
     configureRedis = true;
 
@@ -46,11 +46,11 @@
       dbtype = "pgsql";
       dbname = "nextcloud";
       dbtableprefix = "oc_";
-      overwriteProtocol = "https";
     };
 
-    extraOptions = {
-      overwrite.cli.url = "http://cloud.pub.solar";
+    settings = {
+      overwrite.cli.url = "http://cloud.${config.pub-solar-os.networking.domain}";
+      overwriteprotocol = "https";
 
       installed = true;
       default_phone_region = "+49";
@@ -60,10 +60,10 @@
       mail_smtpauthtype = "PLAIN";
       mail_domain = "pub.solar";
       mail_smtpname = "admins@pub.solar";
-      mail_smtpsecure = "tls";
-      mail_smtpauth = 1;
-      mail_smtphost = "mail.greenbaum.zone";
-      mail_smtpport = "587";
+      mail_smtpsecure = "ssl";
+      mail_smtpauth = true;
+      mail_smtphost = "mail.pub.solar";
+      mail_smtpport = "465";
 
       # This is to allow connections to collabora and keycloak, among other services
       # running on the same host
@@ -91,12 +91,13 @@
 
       auth.bruteforce.protection.enabled = true;
       trashbin_retention_obligation = "auto,7";
-      skeletondirectory = "";
+      skeletondirectory = "./nextcloud-skeleton";
       defaultapp = "file";
       activity_expire_days = "14";
       integrity.check.disabled = false;
       updater.release.channel = "stable";
-      loglevel = 0;
+      loglevel = 2;
+      debug = false;
       maintenance_window_start = "1";
       # maintenance = false;
       app_install_overwrite = [
@@ -110,6 +111,10 @@
 
     phpOptions = {
       "opcache.interned_strings_buffer" = "32";
+      "opcache.max_accelerated_files" = "16229";
+      "opcache.memory_consumption" = "256";
+      # https://docs.nextcloud.com/server/latest/admin_manual/installation/server_tuning.html#enable-php-opcache
+      "opcache.revalidate_freq" = "60";
       # https://docs.nextcloud.com/server/latest/admin_manual/installation/server_tuning.html#:~:text=opcache.jit%20%3D%201255%20opcache.jit_buffer_size%20%3D%20128m
       "opcache.jit" = "1255";
       "opcache.jit_buffer_size" = "128M";
@@ -131,39 +136,13 @@
     database.createLocally = true;
   };
 
-  services.restic.backups.nextcloud-droppie = {
-    paths = [
-      "/var/lib/nextcloud/data"
-      "/tmp/nextcloud-backup.sql"
-    ];
-    timerConfig = {
-      OnCalendar = "*-*-* 02:00:00 Etc/UTC";
-      # droppie will be offline if nachtigall misses the timer
-      Persistent = false;
-    };
-    initialize = true;
-    passwordFile = config.age.secrets."restic-repo-droppie".path;
-    repository = "sftp:yule@droppie.b12f.io:/media/internal/pub.solar";
-    backupPrepareCommand = ''
-      ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d nextcloud > /tmp/nextcloud-backup.sql
-    '';
-    backupCleanupCommand = ''
-      rm /tmp/nextcloud-backup.sql
-    '';
-    pruneOpts = [
-      "--keep-daily 7"
-      "--keep-weekly 4"
-      "--keep-monthly 3"
-    ];
-  };
-
   services.restic.backups.nextcloud-storagebox = {
     paths = [
       "/var/lib/nextcloud/data"
       "/tmp/nextcloud-backup.sql"
     ];
     timerConfig = {
-      OnCalendar = "*-*-* 04:00:00 Etc/UTC";
+      OnCalendar = "*-*-* 01:00:00 Etc/UTC";
     };
     initialize = true;
     passwordFile = config.age.secrets."restic-repo-storagebox".path;

modules/nginx-mastodon-files/default.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ config, ... }:
 
 let
   objStorHost = "link.tardigradeshare.io";
@@ -6,7 +6,7 @@ let
 in
 {
   services.nginx.virtualHosts = {
-    "files.pub.solar" = {
+    "files.${config.pub-solar-os.networking.domain}" = {
       enableACME = true;
       forceSSL = true;
 

modules/nginx-mastodon/default.nix

@@ -5,7 +5,7 @@ in
 {
   services.nginx = {
     virtualHosts = {
-      "mastodon.pub.solar" = {
+      "mastodon.${config.pub-solar-os.networking.domain}" = {
         root = "${cfg.package}/public/";
         # mastodon only supports https, but you can override this if you offload tls elsewhere.
         forceSSL = lib.mkDefault true;
@@ -16,11 +16,11 @@ in
         '';
 
         locations."/auth/confirmation/new".extraConfig = ''
-          return 302 https://auth.pub.solar/realms/pub.solar/login-actions/reset-credentials?client_id=mastodon;
+          return 302 https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}/login-actions/reset-credentials?client_id=mastodon;
         '';
 
         locations."/auth/password/new".extraConfig = ''
-          return 302 https://auth.pub.solar/realms/pub.solar/login-actions/reset-credentials?client_id=mastodon;
+          return 302 https://auth.${config.pub-solar-os.networking.domain}/realms/${config.pub-solar-os.auth.realm}/login-actions/reset-credentials?client_id=mastodon;
         '';
 
         locations."/system/".alias = "/var/lib/mastodon/public-system/";
@@ -30,7 +30,12 @@ in
         };
 
         locations."@proxy" = {
-          proxyPass = (if cfg.enableUnixSocket then "http://unix:/run/mastodon-web/web.socket" else "http://127.0.0.1:${toString(cfg.webPort)}");
+          proxyPass = (
+            if cfg.enableUnixSocket then
+              "http://unix:/run/mastodon-web/web.socket"
+            else
+              "http://127.0.0.1:${toString (cfg.webPort)}"
+          );
           proxyWebsockets = true;
         };
 
@@ -45,13 +50,12 @@ in
       extraConfig = ''
         least_conn;
       '';
-      servers = builtins.listToAttrs
-        (map
-          (i: {
-            name = "unix:/run/mastodon-streaming/streaming-${toString i}.socket";
-            value = { };
-          })
-          (lib.range 1 cfg.streamingProcesses));
+      servers = builtins.listToAttrs (
+        map (i: {
+          name = "unix:/run/mastodon-streaming/streaming-${toString i}.socket";
+          value = { };
+        }) (lib.range 1 cfg.streamingProcesses)
+      );
     };
   };
 }

modules/nginx-matrix/default.nix

@@ -1,11 +1,16 @@
-{ lib, pkgs, ... }:
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
 let
   commonHeaders = ''
     add_header Permissions-Policy interest-cohort=() always;
     add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
     add_header X-XSS-Protection "1; mode=block";
   '';
-  clientConfig = import ./matrix/element-client-config.nix { inherit lib pkgs; };
+  clientConfig = import ./element-client-config.nix { inherit lib pkgs; };
   wellKnownClient = domain: {
     "m.homeserver".base_url = "https://matrix.${domain}";
     "m.identity_server".base_url = "https://matrix.${domain}";
@@ -44,7 +49,7 @@ let
         role = "m.role.admin";
       }
     ];
-    support_page = "https://pub.solar/about";
+    support_page = "https://${config.pub-solar-os.networking.domain}/about";
   };
   mkWellKnown = data: ''
     add_header Content-Type application/json;
@@ -64,19 +69,23 @@ in
     # This is already in production use #
     #####################################
 
-    "pub.solar" = {
-      locations = wellKnownLocations "pub.solar";
+    "${config.pub-solar-os.networking.domain}" = {
+      locations = wellKnownLocations "${config.pub-solar-os.networking.domain}";
     };
 
-    "chat.pub.solar" = {
+    "chat.${config.pub-solar-os.networking.domain}" = {
       forceSSL = true;
       enableACME = true;
-      root = pkgs.element-web.override {
-        conf = clientConfig;
-      };
+      root = pkgs.element-web.override { conf = clientConfig; };
     };
 
-    "matrix.pub.solar" = {
+    "stickers.chat.${config.pub-solar-os.networking.domain}" = {
+      forceSSL = true;
+      enableACME = true;
+      root = pkgs.element-stickerpicker;
+    };
+
+    "matrix.${config.pub-solar-os.networking.domain}" = {
       root = "/dev/null";
 
       forceSSL = lib.mkDefault true;
@@ -116,20 +125,22 @@ in
         };
       };
     };
-    "matrix.pub.solar-federation" = {
-      serverName = "matrix.pub.solar";
+    "matrix.${config.pub-solar-os.networking.domain}-federation" = {
+      serverName = "matrix.${config.pub-solar-os.networking.domain}";
       forceSSL = lib.mkDefault true;
       enableACME = lib.mkDefault true;
-      listen = [{
-        port = 8448;
-        addr = "0.0.0.0";
-        ssl = true;
-      }
+      listen = [
+        {
+          port = 8448;
+          addr = "0.0.0.0";
+          ssl = true;
+        }
         {
           port = 8448;
           addr = "[::]";
           ssl = true;
-        }];
+        }
+      ];
       root = "/dev/null";
       extraConfig = ''
         server_tokens off;
@@ -153,4 +164,3 @@ in
   };
   networking.firewall.allowedTCPPorts = [ 8448 ];
 }
-

modules/nginx-matrix/element-client-config.nix

@@ -1,4 +1,5 @@
-{ pkgs, lib, ... }: {
+{ pkgs, lib, ... }:
+{
   default_server_config = {
     "m.homeserver" = {
       base_url = "https://matrix.pub.solar";
@@ -35,10 +36,12 @@
     homeUrl = "";
   };
   branding = {
-    auth_footer_links = [{
-      text = "Privacy";
-      url = "https://pub.solar/privacy";
-    }];
+    auth_footer_links = [
+      {
+        text = "Privacy";
+        url = "https://pub.solar/privacy";
+      }
+    ];
     # FUTUREWORK: Replace with pub.solar logo
     auth_header_logo_url = "themes/element/img/logos/element-logo.svg";
   };