nixpkgs/nixos/tests/oci-containers.nix

{
  system ? builtins.currentSystem,
  config ? { },
  pkgs ? import ../.. { inherit system config; },
  lib ? pkgs.lib,
}:

let

  inherit (import ../lib/testing-python.nix { inherit system pkgs; }) makeTest;

  mkOCITest =
    backend:
    makeTest {
      name = "oci-containers-${backend}";

      meta.maintainers = lib.teams.serokell.members ++ (with lib.maintainers; [ benley ]);

      nodes = {
        ${backend} =
          { pkgs, ... }:
          {
            virtualisation.oci-containers = {
              inherit backend;
              containers.nginx = {
                image = "nginx-container";
                imageStream = pkgs.dockerTools.examples.nginxStream;
                ports = [ "8181:80" ];
              };
            };

            # Stop systemd from killing remaining processes if ExecStop script
            # doesn't work, so that proper stopping can be tested.
            systemd.services."${backend}-nginx".serviceConfig.KillSignal = "SIGCONT";
          };
      };

      testScript = ''
        start_all()
        ${backend}.wait_for_unit("${backend}-nginx.service")
        ${backend}.wait_for_open_port(8181)
        ${backend}.wait_until_succeeds("curl -f http://localhost:8181 | grep Hello")
        ${backend}.succeed("systemctl stop ${backend}-nginx.service", timeout=10)
      '';
    };

in
lib.foldl' (attrs: backend: attrs // { ${backend} = mkOCITest backend; }) { } [
  "docker"
  "podman"
]