krebs os-release: init

1 files changed, 28 insertions, 0 deletions

diff --git a/krebs/3modules/os-release.nix b/krebs/3modules/os-release.nix
new file mode 100644
index 000000000..4c803fff8
--- /dev/null
+++ b/krebs/3modules/os-release.nix
@@ -0,0 +1,28 @@
+{ config, ... }:
+with config.krebs.lib;
+let
+  nixos-version-id = "${config.system.nixosVersion}";
+  nixos-version = "${nixos-version-id} (${config.system.nixosCodeName})";
+  nixos-pretty-name = "NixOS ${nixos-version}";
+
+  stockholm-version-id = maybeEnv "STOCKHOLM_VERSION" "unknown";
+  stockholm-version = "${stockholm-version-id}";
+  stockholm-pretty-name = "stockholm ${stockholm-version}";
+
+  version = "${stockholm-version}/${nixos-version}";
+  version-id = "${stockholm-version-id}/${nixos-version-id}";
+  pretty-name = "${stockholm-pretty-name} / ${nixos-pretty-name}";
+
+  home-url = http://cgit.cd.krebsco.de/stockholm;
+in
+{
+  # http://0pointer.de/public/systemd-man/os-release.html
+  environment.etc."os-release".text = mkForce ''
+    NAME="stockholm/NixOS"
+    ID=stockholm
+    VERSION="${version}"
+    VERSION_ID="${version-id}"
+    PRETTY_NAME="${pretty-name}"
+    HOME_URL="${home-url}"
+  '';
+}