nixpkgs/nixos/tests/containers-extra_veth.nix

# Test for NixOS' container support.

import ./make-test-python.nix ({ pkgs, ...} : {
  name = "containers-extra_veth";
  meta = with pkgs.lib.maintainers; {
    maintainers = [ kampfschlaefer ];
  };

  machine =
    { pkgs, ... }:
    { imports = [ ../modules/installer/cd-dvd/channel.nix ];
      virtualisation.writableStore = true;
      virtualisation.memorySize = 768;
      virtualisation.vlans = [];

      networking.useDHCP = false;
      networking.bridges = {
        br0 = {
          interfaces = [];
        };
        br1 = { interfaces = []; };
      };
      networking.interfaces = {
        br0 = {
          ipv4.addresses = [{ address = "192.168.0.1"; prefixLength = 24; }];
          ipv6.addresses = [{ address = "fc00::1"; prefixLength = 7; }];
        };
        br1 = {
          ipv4.addresses = [{ address = "192.168.1.1"; prefixLength = 24; }];
        };
      };

      containers.webserver =
        {
          autoStart = true;
          privateNetwork = true;
          hostBridge = "br0";
          localAddress = "192.168.0.100/24";
          localAddress6 = "fc00::2/7";
          extraVeths = {
            veth1 = { hostBridge = "br1"; localAddress = "192.168.1.100/24"; };
            veth2 = { hostAddress = "192.168.2.1"; localAddress = "192.168.2.100"; };
          };
          config =
            {
              networking.firewall.allowedTCPPorts = [ 80 ];
            };
        };

      virtualisation.pathsInNixDB = [ pkgs.stdenv ];
    };

  testScript =
    ''
      machine.wait_for_unit("default.target")
      assert "webserver" in machine.succeed("nixos-container list")

      with subtest("Status of the webserver container is up"):
          assert "up" in machine.succeed("nixos-container status webserver")

      with subtest("Ensure that the veths are inside the container"):
          assert "state UP" in machine.succeed(
              "nixos-container run webserver -- ip link show veth1"
          )
          assert "state UP" in machine.succeed(
              "nixos-container run webserver -- ip link show veth2"
          )

      with subtest("Ensure the presence of the extra veths"):
          assert "state UP" in machine.succeed("ip link show veth1")
          assert "state UP" in machine.succeed("ip link show veth2")

      with subtest("Ensure the veth1 is part of br1 on the host"):
          assert "master br1" in machine.succeed("ip link show veth1")

      with subtest("Ping on main veth"):
          machine.succeed("ping -n -c 1 192.168.0.100")
          machine.succeed("ping -n -c 1 fc00::2")

      with subtest("Ping on the first extra veth"):
          machine.succeed("ping -n -c 1 192.168.1.100 >&2")

      with subtest("Ping on the second extra veth"):
          machine.succeed("ping -n -c 1 192.168.2.100 >&2")

      with subtest("Container can be stopped"):
          machine.succeed("nixos-container stop webserver")
          machine.fail("ping -n -c 1 192.168.1.100 >&2")
          machine.fail("ping -n -c 1 192.168.2.100 >&2")

      with subtest("Destroying a declarative container should fail"):
          machine.fail("nixos-container destroy webserver")
    '';
})