nixpkgs/nixos/tests/docker-registry.nix

# This test runs docker-registry and check if it works

import ./make-test.nix ({ pkgs, ...} : {
  name = "docker-registry";
  meta = with pkgs.stdenv.lib.maintainers; {
    maintainers = [ globin ma27 ironpinguin ];
  };

  nodes = {
    registry = { ... }: {
      services.dockerRegistry.enable = true;
      services.dockerRegistry.enableDelete = true;
      services.dockerRegistry.port = 8080;
      services.dockerRegistry.listenAddress = "0.0.0.0";
      services.dockerRegistry.enableGarbageCollect = true;
      networking.firewall.allowedTCPPorts = [ 8080 ];
    };

    client1 = { ... }: {
      virtualisation.docker.enable = true;
      virtualisation.docker.extraOptions = "--insecure-registry registry:8080";
    };

    client2 = { ... }: {
      virtualisation.docker.enable = true;
      virtualisation.docker.extraOptions = "--insecure-registry registry:8080";
    };
  };

  testScript = ''
    $client1->start();
    $client1->waitForUnit("docker.service");
    $client1->succeed("tar cv --files-from /dev/null | docker import - scratch");
    $client1->succeed("docker tag scratch registry:8080/scratch");

    $registry->start();
    $registry->waitForUnit("docker-registry.service");
    $registry->waitForOpenPort("8080");
    $client1->succeed("docker push registry:8080/scratch");

    $client2->start();
    $client2->waitForUnit("docker.service");
    $client2->succeed("docker pull registry:8080/scratch");
    $client2->succeed("docker images | grep scratch");

    $client2->succeed(
      'curl -fsS -X DELETE registry:8080/v2/scratch/manifests/$(curl -fsS -I -H"Accept: application/vnd.docker.distribution.manifest.v2+json" registry:8080/v2/scratch/manifests/latest | grep Docker-Content-Digest | sed -e \'s/Docker-Content-Digest: //\' | tr -d \'\r\')'
    );

    $registry->systemctl("start docker-registry-garbage-collect.service");
    $registry->waitUntilFails("systemctl status docker-registry-garbage-collect.service");
    $registry->waitForUnit("docker-registry.service");

    $registry->fail(
      'ls -l /var/lib/docker-registry/docker/registry/v2/blobs/sha256/*/*/data'
    );

    $client1->succeed("docker push registry:8080/scratch");
    $registry->succeed(
      'ls -l /var/lib/docker-registry/docker/registry/v2/blobs/sha256/*/*/data'
    );
  '';
})