cntr: 1.6.1 -> 2.0.0 (#473371)

        start_all()

        ${backend}.wait_for_unit("${backend}-nginx.service")

        ${backend}.wait_for_open_port(8181)

        # For some reason, the cntr command hangs when run without the &.

        # As such, we have to do some messy things to ensure we check the exitcode and output in a race-condition-safe manner

        ${backend}.execute(

            "(cntr attach -t ${backend} nginx sh -- -c 'curl localhost | grep Hello' > /tmp/result; echo $? > /tmp/exitcode; touch /tmp/done) &"

        )

        ${backend}.wait_for_file("/tmp/done")

        assert "0" == ${backend}.succeed("cat /tmp/exitcode").strip(), "non-zero exit code"

        assert "Hello" in ${backend}.succeed("cat /tmp/result"), "no greeting in output"

        # Test attach: uses host tools in container's network namespace

        # Curl localhost to verify we're in the container's network

        result = ${backend}.succeed("cntr attach -t ${backend} nginx curl -s localhost")

        assert "Hello" in result, f"no greeting in output: {result}"

        # Test exec: runs in container's native filesystem

        # Use nginx's own binary to verify exec works

        result = ${backend}.succeed("cntr exec -t ${backend} nginx -- nginx -v")

        assert "nginx" in result, f"expected nginx version: {result}"

      '';

    };

          privateNetwork = true;

          hostAddress = "172.16.0.1";

          localAddress = "172.16.0.2";

          config = { };

          config =

            { pkgs, ... }:

            {

              environment.systemPackages = [ pkgs.iputils ];

            };

        };

      };

    testScript = ''

      machine.start()

      machine.wait_for_unit("container@test.service")

      # I haven't observed the same hanging behaviour in this version as in the OCI version which necessetates this messy invocation, but it's probably better to be safe than sorry and use it here as well

      machine.execute(

          "(cntr attach test sh -- -c 'ping -c5 172.16.0.1'; echo $? > /tmp/exitcode; touch /tmp/done) &"

      )

      machine.wait_for_file("/tmp/done")

      assert "0" == machine.succeed("cat /tmp/exitcode").strip(), "non-zero exit code"

      # Test attach: container fs is mounted at /var/lib/cntr/

      # Writing to /var/lib/cntr/tmp/foo creates /tmp/foo in the container

      machine.succeed("cntr attach test touch /var/lib/cntr/tmp/cntr-attach-test")

      # Verify both that exec works and that the file from attach exists in container's /tmp

      machine.succeed("cntr exec test -- test -f /tmp/cntr-attach-test")

      machine.succeed("cntr exec test -- /run/current-system/sw/bin/ping -c1 172.16.0.1")

    '';

  };

in

rustPlatform.buildRustPackage rec {

  pname = "cntr";

  version = "1.6.1";

  version = "2.0.0";

  src = fetchFromGitHub {

    owner = "Mic92";

    repo = "cntr";

    rev = version;

    sha256 = "sha256-2tqPxbi8sKoEPq0/zQFsOrStEmQGlU8s81ohTfKeOmE=";

    sha256 = "sha256-4HBOUx9086nn3hRBLA4zuH0Dq+qDZHgo3DivmiEMh3w=";

  };

  cargoHash = "sha256-gWQ8seCuUSHuZUoNH9pnBTlzF9S0tHVLStnAiymLLbs=";

  cargoHash = "sha256-FBlKxQcQRkz5dYInot2WtZfUSAaX+7qlin+cLf3h8f4=";

  passthru.tests = nixosTests.cntr;