cri-o: add NixOS test via critest

Signed-off-by: Sascha Grunert <sgrunert@suse.com>

nixos/tests/all-tests.nix

@@ -72,6 +72,7 @@ in
   convos = handleTest ./convos.nix {};
   corerad = handleTest ./corerad.nix {};
   couchdb = handleTest ./couchdb.nix {};
+  cri-o = handleTestOn ["x86_64-linux"] ./cri-o.nix {};
   deluge = handleTest ./deluge.nix {};
   dhparams = handleTest ./dhparams.nix {};
   dnscrypt-proxy2 = handleTestOn ["x86_64-linux"] ./dnscrypt-proxy2.nix {};

nixos/tests/cri-o.nix

@@ -0,0 +1,19 @@
+# This test runs CRI-O and verifies via critest
+import ./make-test-python.nix ({ pkgs, ... }: {
+  name = "cri-o";
+  maintainers = with pkgs.stdenv.lib.maintainers; teams.podman.members;
+
+  nodes = {
+    crio = {
+      virtualisation.cri-o.enable = true;
+    };
+  };
+
+  testScript = ''
+    start_all()
+    crio.wait_for_unit("crio.service")
+    crio.succeed(
+        "critest --ginkgo.focus='Runtime info' --runtime-endpoint unix:///var/run/crio/crio.sock"
+    )
+  '';
+})