flora-6: init mailman with NixOS module

Docker containers were too complicated to setup

hosts/flora-6/README.md

@@ -0,0 +1,16 @@
+# Mailman on NixOS docs
+
+- add reverse DNS record for IP
+
+Manual setup done for mailman, adapted from https://nixos.wiki/wiki/Mailman:
+
+```
+# Add DNS records in infra repo using terraform:
+# https://git.pub.solar/pub-solar/infra/commit/db234cdb5b55758a3d74387ada0760e06e166b9d
+
+# Generate initial postfix_domains.db and postfix_lmtp.db databases for Postfix
+sudo -u mailman mailman aliases
+# Create a django superuser account
+sudo -u mailman-web mailman-web createsuperuser
+# Followed outlined steps in web UI
+```

hosts/flora-6/caddy.nix

@@ -5,6 +5,11 @@
   self,
   ...
 }: {
+  # Changing the Caddyfile should only trigger a reload, not a restart
+  systemd.services.caddy.reloadTriggers = [
+    config.services.caddy.configFile
+  ];
+
   services.caddy = {
     enable = lib.mkForce true;
     group = "hakkonaut";
@@ -77,7 +82,12 @@
           output discard
         '';
         extraConfig = ''
-          reverse_proxy :${services.sourcehut.lists.port}
+          handle_path /static/* {
+            root * /var/lib/mailman-web-static
+            file_server
+          }
+
+          reverse_proxy :18507
         '';
       };
       "obs-portal.pub.solar" = {

hosts/flora-6/mailman.nix

@@ -5,53 +5,16 @@
   self,
   ...
 }: let
-  postfixConfig = pkgs.writeTextFile {
+  # Source: https://github.com/NixOS/nixpkgs/blob/nixos-22.11/nixos/modules/services/mail/mailman.nix#L9C10-L10
-    name = "main.cf";
+  # webEnv is required by the mailman-uwsgi systemd service
-    text = builtins.readFile ./postfix/main.cf;
+  inherit (pkgs.mailmanPackages.buildEnvs {}) webEnv;
-  };
 in {
-  system.activationScripts.mkMailmanNet = let
+  networking.firewall.allowedTCPPorts = [25];
-    docker = config.virtualisation.oci-containers.backend;
-    dockerBin = "${pkgs.${docker}}/bin/${docker}";
-  in ''
-    ${dockerBin} network inspect mailman-net >/dev/null 2>&1 || ${dockerBin} network create mailman-net --subnet 172.20.1.0/24
-  '';
-
-  users.users.mailman = {
-    description = "Mailman Service";
-    home = "/var/lib/mailman";
-    useDefaultShell = true;
-    uid = 993;
-    # Group hakkonaut so caddy can serve the static files from mailman-web directly
-    group = "hakkonaut";
-    isSystemUser = true;
-  };
-
-  systemd.tmpfiles.rules = [
-    "d '/var/lib/mailman' 0750 mailman hakkonaut - -"
-  ];
-
-  age.secrets.mailman-core-secrets = {
-    file = "${self}/secrets/mailman-core-secrets.age";
-    mode = "600";
-    owner = "mailman";
-  };
-
-  age.secrets.mailman-web-secrets = {
-    file = "${self}/secrets/mailman-web-secrets.age";
-    mode = "600";
-    owner = "mailman";
-  };
-
-  age.secrets.mailman-db-secrets = {
-    file = "${self}/secrets/mailman-db-secrets.age";
-    mode = "600";
-    owner = "mailman";
-  };
 
   services.postfix = {
     enable = true;
     relayDomains = ["hash:/var/lib/mailman/data/postfix_domains"];
+    # FIXME: get TLS certs for list.pub.solar from caddy
     #sslCert = config.security.acme.certs."lists.example.org".directory + "/full.pem";
     #sslKey = config.security.acme.certs."lists.example.org".directory + "/key.pem";
     config = {
@@ -59,114 +22,39 @@ in {
       local_recipient_maps = ["hash:/var/lib/mailman/data/postfix_lmtp"];
     };
   };
+
   services.mailman = {
     enable = true;
+    # We use caddy instead of nginx
     #serve.enable = true;
     hyperkitty.enable = true;
     webHosts = ["list.pub.solar"];
     siteOwner = "admins@pub.solar";
   };
 
-  #virtualisation = {
+  systemd.services.mailman-uwsgi = let
-  #  docker = {
+    uwsgiConfig.uwsgi = {
-  #    enable = true;
+      type = "normal";
-  #  };
+      plugins = ["python3"];
-
+      home = webEnv;
-  #  oci-containers = {
+      manage-script-name = true;
-  #    backend = "docker";
+      mount = "/=mailman_web.wsgi:application";
-  #    containers."mailman-core" = {
+      http = "127.0.0.1:18507";
-  #      image = "maxking/mailman-core:0.4";
+    };
-  #      autoStart = true;
+    uwsgiConfigFile = pkgs.writeText "uwsgi-mailman.json" (builtins.toJSON uwsgiConfig);
-  #      #user = "993";
+  in {
-  #      volumes = [
+    wantedBy = ["multi-user.target"];
-  #        "/var/lib/mailman/core:/opt/mailman/"
+    after = ["postgresql.service"];
-  #      ];
+    requires = ["mailman-web-setup.service" "postgresql.service"];
-  #      extraOptions = [
+    restartTriggers = [config.environment.etc."mailman3/settings.py".source];
-  #        "--network=mailman-net"
+    serviceConfig = {
-  #      ];
+      # Since the mailman-web settings.py obstinately creates a logs
-  #      environment = {
+      # dir in the cwd, change to the (writable) runtime directory before
-  #        DATABASE_TYPE = "postgres";
+      # starting uwsgi.
-  #        DATABASE_CLASS = "mailman.database.postgresql.PostgreSQLDatabase";
+      ExecStart = "${pkgs.coreutils}/bin/env -C $RUNTIME_DIRECTORY ${pkgs.uwsgi.override {plugins = ["python3"];}}/bin/uwsgi --json ${uwsgiConfigFile}";
-  #        MTA = "postfix";
+      User = "mailman-web";
-  #      };
+      Group = "mailman";
-  #      environmentFiles = [
+      RuntimeDirectory = "mailman-uwsgi";
-  #        config.age.secrets.mailman-core-secrets.path
+    };
-  #      ];
+  };
-  #      ports = [
-  #        "127.0.0.1:8001:8001" # API
-  #        "127.0.0.1:8024:8024" # LMTP - incoming emails
-  #      ];
-  #    };
-
-  #    containers."mailman-web" = {
-  #      image = "maxking/mailman-web:0.4";
-  #      autoStart = true;
-  #      #user = "993:992";
-  #      volumes = [
-  #        "/var/lib/mailman/web:/opt/mailman-web-data"
-  #      ];
-  #      extraOptions = [
-  #        "--network=mailman-net"
-  #      ];
-  #      environment = {
-  #        DATABASE_TYPE = "postgres";
-  #        SERVE_FROM_DOMAIN = "list.pub.solar";
-  #        MAILMAN_ADMIN_USER = "admin";
-  #        MAILMAN_ADMIN_EMAIL = "admins@pub.solar";
-  #      };
-  #      environmentFiles = [
-  #        config.age.secrets.mailman-web-secrets.path
-  #      ];
-  #      ports = [
-  #        "127.0.0.1:8000:8000" # HTTP
-  #        # "127.0.0.1:8080:8080" # uwsgi
-  #      ];
-  #    };
-
-  #    containers."mailman-db" = {
-  #      image = "postgres:14-alpine";
-  #      autoStart = true;
-  #      user = "993";
-  #      extraOptions = [
-  #        "--network=mailman-net"
-  #      ];
-  #      volumes = [
-  #        "/var/lib/mailman/database:/var/lib/postgresql/data"
-  #      ];
-  #      environmentFiles = [
-  #        config.age.secrets.mailman-db-secrets.path
-  #      ];
-  #    };
-
-  #    containers."mailman-postfix" = {
-  #      image = "mailu/postfix:1.9.46";
-  #      autoStart = true;
-  #      #user = "993";
-  #      extraOptions = [
-  #        "--hostname=list.pub.solar"
-  #        "--network=mailman-net"
-  #      ];
-  #      environment = {
-  #        HOSTNAMES = "list.pub.solar";
-  #        FRONT_ADDRESS = "localhost";
-  #        ADMIN_ADDRESS = "localhost";
-  #        ANTISPAM_MILTER_ADDRESS = "localhost:11332";
-  #        LMTP_ADDRESS = "localhost:2525";
-  #      };
-  #      volumes = [
-  #        # https://mailu.io/1.9/faq.html#how-can-i-override-settings
-  #        # Docs contain the wrong path to override main.cf, this one works
-  #        "${postfixConfig}:/overrides/postfix.cf"
-  #        # Configured in main.cf
-  #        "/var/lib/mailman/postfix/mailqueue:/var/spool/postfix"
-  #        "/var/lib/mailman/postfix/data:/var/lib/postfix"
-  #        # Contains postfix transport_maps generated by mailman-core
-  #        "/var/lib/mailman/core:/var/lib/mailman/core"
-  #      ];
-  #      environmentFiles = [
-  #        config.age.secrets.mailman-db-secrets.path
-  #      ];
-  #    };
-  #  };
-  #};
 }