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Fediversity/infra/flake-part.nix

118 lines
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Nix

{
inputs,
lib,
...
}:
let
inherit (lib) mkOption evalModules;
inherit (lib.attrsets) genAttrs;
## Given a machine's name, make a resource module, except for its missing
## provider. (Depending on the use of that resource, we will provide a
## different one.)
makeResourceModule = vmName: {
_module.args = { inherit inputs; };
imports = [
./common/resource.nix
(./. + "/${vmName}")
];
fediversityVm.name = vmName;
};
## Given a list of machine names, make a deployment with those machines'
## configurations as resources
makeDeployment =
vmNames:
{ providers, ... }:
{
providers.local = inputs.nixops4.modules.nixops4Provider.local;
resources = genAttrs vmNames (vmName: {
type = providers.local.exec;
imports = [
inputs.nixops4-nixos.modules.nixops4Resource.nixos
(makeResourceModule vmName)
];
});
};
makeDeployment' = vmName: makeDeployment [ vmName ];
nixops4ResourceNixosMockOptions = {
## NOTE: We allow the use of a few options from
## `inputs.nixops4-nixos.modules.nixops4Resource.nixos` such that we can
## reuse modules that make use of them.
##
## REVIEW: We can probably do much better and cleaner. On the other hand,
## this is only needed to expose NixOS configurations for provisioning
## purposes, and eventually all of this should be handled by NixOps4.
options = {
nixos.module = mkOption { }; # NOTE: not just `nixos` otherwise merging will go wrong
nixpkgs = mkOption { };
ssh = mkOption { };
};
};
makeResourceConfig =
vmName:
(evalModules {
modules = [
nixops4ResourceNixosMockOptions
(makeResourceModule vmName)
];
}).config;
## Given a VM name, make a NixOS configuration for this machine.
makeConfiguration =
vmName:
inputs.nixpkgs.lib.nixosSystem {
modules = [
(makeResourceConfig vmName).nixos.module
];
};
makeVmOptions = vmName: {
inherit ((makeResourceConfig vmName).fediversityVm)
proxmox
vmId
sockets
cores
memory
hostPublicKey
unsafeHostPrivateKey
;
};
machines = [
"vm02116"
"vm02179"
"vm02186"
"vm02187"
"fedi200"
"fedi201"
];
testMachines = [
"test01"
"test02"
"test03"
"test04"
"test05"
];
in
{
flake.lib.makeInstallerIso = import ./makeInstallerIso.nix;
## - Each normal or test machine gets a NixOS configuration.
## - Each normal or test machine gets a VM options entry.
## - Each normal machine gets a deployment.
## - We add a “default” deployment with all normal machines.
## - We add a “test” deployment with all test machines.
nixops4Deployments = genAttrs machines makeDeployment' // {
default = makeDeployment machines;
test = makeDeployment testMachines;
};
flake.nixosConfigurations = genAttrs (machines ++ testMachines) makeConfiguration;
flake.vmOptions = genAttrs (machines ++ testMachines) makeVmOptions;
}