Unverified Commit b4f4971b authored by Matt Leon's avatar Matt Leon
Browse files

nixos/matter-server: fix permission denied error in initialization with v7.0.1 



Signed-off-by: default avatarMatt Leon <ml@mattleon.com>
parent 73cf49b8

nixos/modules/services/home-automation/matter-server.nix

+15 −7
Original line number Diff line number Diff line
@@ -58,6 +58,15 @@ in 
      serviceConfig = {

        ExecStart = (

          lib.concatStringsSep " " [

            # `python-matter-server` writes to /data even when a storage-path

            # is specified. This symlinks /data at the systemd-managed

            # /var/lib/matter-server, so all files get dropped into the state

            # directory.

            "${pkgs.bash}/bin/sh"

            "-c"

            "'"

            "${pkgs.coreutils}/bin/ln -s %S/matter-server/ %t/matter-server/root/data"

            "&&"

            "${cfg.package}/bin/matter-server"

            "--port"

            (toString cfg.port)
@@ -68,22 +77,21 @@ in 
            "--log-level"

            "${cfg.logLevel}"

            "${lib.escapeShellArgs cfg.extraArgs}"

            "'"

          ]

        );

        # Start with a clean root filesystem, and allowlist what the container

        # is permitted to access.

        TemporaryFileSystem = "/";

        # See https://discourse.nixos.org/t/hardening-systemd-services/17147/14.

        RuntimeDirectory = [ "matter-server/root" ];

        RootDirectory = "%t/matter-server/root";



        # Allowlist /nix/store (to allow the binary to find its dependencies)

        # and dbus.

        ReadOnlyPaths = "/nix/store /run/dbus";

        BindReadOnlyPaths = "/nix/store /run/dbus";

        # Let systemd manage `/var/lib/matter-server` for us inside the

        # ephemeral TemporaryFileSystem.

        StateDirectory = storageDir;

        # `python-matter-server` writes to /data even when a storage-path is

        # specified. This bind-mount points /data at the systemd-managed

        # /var/lib/matter-server, so all files get dropped into the state

        # directory.

        BindPaths = "${storagePath}:/data";



        # Hardening bits

        AmbientCapabilities = "";

nixos/tests/matter-server.nix

+19 −17
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ import ./make-test-python.nix ( 
  {

    name = "matter-server";

    meta.maintainers = with lib.maintainers; [ leonm1 ];

    meta.timeout = 120; # Timeout after two minutes



    nodes = {

      machine =
@@ -22,19 +23,20 @@ import ./make-test-python.nix ( 


    testScript = # python

      ''

        @polling_condition

        def matter_server_running():

          machine.succeed("systemctl status matter-server")



        start_all()



        machine.wait_for_unit("matter-server.service")

        machine.wait_for_open_port(1234)

        machine.wait_for_unit("matter-server.service", timeout=20)

        machine.wait_for_open_port(1234, timeout=20)



        with matter_server_running: # type: ignore[union-attr]

          with subtest("Check websocket server initialized"):

              output = machine.succeed("echo \"\" | ${pkgs.websocat}/bin/websocat ws://localhost:1234/ws")

              machine.log(output)



        assert '"sdk_version": "${chipVersion}"' in output, (

          'CHIP version \"${chipVersion}\" not present in websocket message'

        )



          assert '"fabric_id": 1' in output, (

            "fabric_id not propagated to server"

          )