forked from pub-solar/os
auto import hosts in flake.nix
this allows host-specific settings to be overriden with mkMerge
This commit is contained in:
parent
df39cb692e
commit
aa825b87a6
|
@ -1,18 +1,24 @@
|
|||
# Hosts
|
||||
|
||||
Nix flakes contain an output called `nixosConfigurations` declaring an
|
||||
attribute set of valid NixOS systems. To create hosts, you can use the
|
||||
`nixos.hosts` argument and pass `modules` to each host. Host-specific modules
|
||||
typically go in the `hosts` folder of the template.
|
||||
attribute set of valid NixOS systems. To simplify the management and creation
|
||||
of these hosts, devos automatically imports every _.nix_ file inside this
|
||||
directory to the mentioned attribute set, applying the projects defaults to
|
||||
each. The only hard requirement is that the file contain a valid NixOS module.
|
||||
|
||||
Each host should follow a certain channel to define the `pkgs` of that host.
|
||||
You can use the `nixos.hostDefaults` to set defaults and global modules for all
|
||||
hosts.
|
||||
As an example, a file `hosts/system.nix` will be available via the flake
|
||||
output `nixosConfigurations.system`. You can have as many hosts as you want
|
||||
and all of them will be automatically imported based on their name.
|
||||
|
||||
For each host, the configuration automatically sets the `networking.hostName`
|
||||
attribute to the name of the host. This is for convenience, since `nixos-rebuild`
|
||||
automatically searches for a configuration matching the current systems hostname
|
||||
if one is not specified explicitly.
|
||||
attribute to the name of the file minus the _.nix_ extension. This is for
|
||||
convenience, since `nixos-rebuild` automatically searches for a configuration
|
||||
matching the current systems hostname if one is not specified explicitly.
|
||||
|
||||
You can set channels, systems, and add extra modules to each host by editing the
|
||||
`nixos.hosts` argument in flake.nix. This is the perfect place to import
|
||||
host specific modules from external sources, such as the
|
||||
[nixos-hardware][nixos-hardware] repository.
|
||||
|
||||
It is recommended that the host modules only contain configuration information
|
||||
specific to a particular piece of hardware. Anything reusable across machines
|
||||
|
@ -21,16 +27,29 @@ is best saved for [profile modules](./profiles.md).
|
|||
This is a good place to import sets of profiles, called [suites](./suites.md),
|
||||
that you intend to use on your machine.
|
||||
|
||||
Additionally, you can pass modules from [nixos-hardware][nixos-hardware] in the
|
||||
`modules` argument for relevant hosts.
|
||||
|
||||
## Example
|
||||
|
||||
flake.nix:
|
||||
```nix
|
||||
{
|
||||
nixos.hosts = mkMerge [
|
||||
(devos.lib.importHosts ./hosts)
|
||||
{
|
||||
librem = {
|
||||
channelName = "latest";
|
||||
modules = [ hardware.purism-librem-13v3 ];
|
||||
};
|
||||
}
|
||||
];
|
||||
}
|
||||
```
|
||||
|
||||
hosts/librem.nix:
|
||||
```nix
|
||||
{ suites, hardware, ... }:
|
||||
{ suites, ... }:
|
||||
{
|
||||
imports = suites.laptop ++ [ hardware.purism-librem-13v3 ];
|
||||
imports = suites.laptop;
|
||||
|
||||
boot.loader.systemd-boot.enable = true;
|
||||
boot.loader.efi.canTouchEfiVariables = true;
|
||||
|
@ -39,15 +58,4 @@ hosts/librem.nix:
|
|||
}
|
||||
```
|
||||
|
||||
flake.nix
|
||||
```nix
|
||||
{
|
||||
nixos.hosts.librem = {
|
||||
system = "aarch64-linux";
|
||||
modules = ./hosts/librem.nix;
|
||||
};
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
[nixos-hardware]: https://github.com/NixOS/nixos-hardware
|
||||
|
|
|
@ -81,7 +81,7 @@
|
|||
"utils": "utils_2"
|
||||
},
|
||||
"locked": {
|
||||
"narHash": "sha256-r+OPJF65PToVQK1ll2INAYmIV3zmnDzWBpGLx8m4aVo=",
|
||||
"narHash": "sha256-hpvEXcpq85cDKi0F5UUsuMVISKlk8hgVJiz5FF29RwA=",
|
||||
"path": "./lib",
|
||||
"type": "path"
|
||||
},
|
||||
|
|
|
@ -61,11 +61,10 @@
|
|||
home.nixosModules.home-manager
|
||||
];
|
||||
};
|
||||
hosts = {
|
||||
NixOS = {
|
||||
modules = ./hosts/NixOS.nix;
|
||||
};
|
||||
};
|
||||
hosts = nixos.lib.mkMerge [
|
||||
(devos.lib.importHosts ./hosts)
|
||||
{ /* set host specific properties here */ }
|
||||
];
|
||||
profiles = [ ./profiles ./users ];
|
||||
suites = { profiles, users, ... }: with profiles; {
|
||||
base = [ cachix core users.nixos users.root ];
|
||||
|
|
|
@ -30,6 +30,14 @@ rec {
|
|||
value = import path;
|
||||
});
|
||||
|
||||
importHosts = dir:
|
||||
lib.os.recImport {
|
||||
inherit dir;
|
||||
_import = base: {
|
||||
modules = import "${toString dir}/${base}.nix";
|
||||
};
|
||||
};
|
||||
|
||||
concatAttrs = lib.fold (attr: sum: lib.recursiveUpdate sum attr) { };
|
||||
|
||||
# Filter out packages that support given system and follow flake check requirements
|
||||
|
|
|
@ -48,7 +48,8 @@
|
|||
safeReadDir
|
||||
pathsToImportedAttrs
|
||||
concatAttrs
|
||||
filterPackages;
|
||||
filterPackages
|
||||
importHosts;
|
||||
inherit (lists) pathsIn collectProfiles unifyOverlays;
|
||||
inherit (strings) rgxToString;
|
||||
inherit modules;
|
||||
|
@ -60,7 +61,7 @@
|
|||
{
|
||||
lib = utils.lib // {
|
||||
inherit (lib)
|
||||
mkFlake pathsIn;
|
||||
mkFlake pathsIn importHosts;
|
||||
};
|
||||
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue