55 lines
1.6 KiB
Nix
55 lines
1.6 KiB
Nix
# Helper functions for instantiating depot-compatible NixOS machines.
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{ depot, lib, pkgs, ... }@args:
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let inherit (lib) findFirst isAttrs;
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in rec {
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# This provides our standard set of arguments to all NixOS modules.
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baseModule = { ... }: {
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# Ensure that pkgs == third_party.nix
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nixpkgs.pkgs = depot.third_party.nixpkgs;
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nix.nixPath = [
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"nixos=${pkgs.path}"
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"nixpkgs=${pkgs.path}"
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];
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};
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nixosFor = configuration: (depot.third_party.nixos {
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configuration = { ... }: {
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imports = [
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baseModule
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configuration
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];
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};
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specialArgs = {
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inherit (args) depot;
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};
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});
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findSystem = hostname:
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(findFirst
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(system: system.config.networking.hostName == hostname)
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(throw "${hostname} is not a known NixOS host")
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(map nixosFor depot.ops.machines.all-systems));
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rebuild-system = rebuildSystemWith depot.path;
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rebuildSystemWith = depotPath: pkgs.writeShellScriptBin "rebuild-system" ''
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set -ue
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if [[ $EUID -ne 0 ]]; then
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echo "Oh no! Only root is allowed to rebuild the system!" >&2
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exit 1
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fi
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echo "Rebuilding NixOS for $HOSTNAME"
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system=$(${pkgs.nix}/bin/nix-build -E "((import ${depotPath} {}).ops.nixos.findSystem \"$HOSTNAME\").system" --no-out-link --show-trace)
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${pkgs.nix}/bin/nix-env -p /nix/var/nix/profiles/system --set $system
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$system/bin/switch-to-configuration switch
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'';
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# Systems that should be built in CI
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whitbySystem = (nixosFor depot.ops.machines.whitby).system;
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sandunySystem = (nixosFor depot.ops.machines.sanduny).system;
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meta.ci.targets = [ "sandunySystem" "whitbySystem" ];
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}
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