programs.criu: add nixos option for installing criu + kernel flags

1 files changed, 26 insertions, 0 deletions

diff --git a/nixos/modules/programs/criu.nix b/nixos/modules/programs/criu.nix
new file mode 100644
index 00000000000..48cf5c88a9f
--- /dev/null
+++ b/nixos/modules/programs/criu.nix
@@ -0,0 +1,26 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let cfg = config.programs.criu;
+in {
+
+  options = {
+    programs.criu = {
+      enable = mkOption {
+        default = false;
+        description = ''
+          Install <command>criu</command> along with necessary kernel options.
+        '';
+      };
+    };
+  };
+  config = mkIf cfg.enable {
+    system.requiredKernelConfig = with config.lib.kernelConfig; [
+      (isYes "CHECKPOINT_RESTORE")
+    ];
+    boot.kernel.features.criu = true;
+    environment.systemPackages = [ pkgs.criu ];
+  };
+
+}