Merge pull request #248405 from fpletz/pkgs/mediamtx-1.0.0

mediamtx: 0.23.8 -> 1.0.0, refactor module, add test

nixos/modules/services/video/mediamtx.nix

···
 { config, lib, pkgs, ... }:
 
-with lib;
-
 let
   cfg = config.services.mediamtx;
-  package = pkgs.mediamtx;
   format = pkgs.formats.yaml {};
 in
 {
+  meta.maintainers = with lib.maintainers; [ fpletz ];
+
   options = {
     services.mediamtx = {
-      enable = mkEnableOption (lib.mdDoc "MediaMTX");
+      enable = lib.mkEnableOption (lib.mdDoc "MediaMTX");
 
-      settings = mkOption {
+      package = lib.mkPackageOptionMD pkgs "mediamtx" { };
+
+      settings = lib.mkOption {
         description = lib.mdDoc ''
-          Settings for MediaMTX.
-          Read more at <https://github.com/aler9/mediamtx/blob/main/mediamtx.yml>
+          Settings for MediaMTX. Refer to the defaults at
+          <https://github.com/bluenviron/mediamtx/blob/main/mediamtx.yml>.
         '';
         type = format.type;
-
-        default = {
-          logLevel = "info";
-          logDestinations = [
-            "stdout"
-          ];
-          # we set this so when the user uses it, it just works (see LogsDirectory below). but it's not used by default.
-          logFile = "/var/log/mediamtx/mediamtx.log";
-        };
-
+        default = {};
         example = {
           paths = {
             cam = {
-              runOnInit = "ffmpeg -f v4l2 -i /dev/video0 -f rtsp rtsp://localhost:$RTSP_PORT/$RTSP_PATH";
+              runOnInit = "\${lib.getExe pkgs.ffmpeg} -f v4l2 -i /dev/video0 -f rtsp rtsp://localhost:$RTSP_PORT/$RTSP_PATH";
               runOnInitRestart = true;
             };
           };
         };
       };
 
-      env = mkOption {
-        type = with types; attrsOf anything;
+      env = lib.mkOption {
+        type = with lib.types; attrsOf anything;
         description = lib.mdDoc "Extra environment variables for MediaMTX";
         default = {};
         example = {
           MTX_CONFKEY = "mykey";
         };
       };
+
+      allowVideoAccess = lib.mkEnableOption (lib.mdDoc ''
+        Enable access to video devices like cameras on the system.
+      '');
     };
   };
 
-  config = mkIf (cfg.enable) {
+  config = lib.mkIf cfg.enable {
     # NOTE: mediamtx watches this file and automatically reloads if it changes
     environment.etc."mediamtx.yaml".source = format.generate "mediamtx.yaml" cfg.settings;
 
     systemd.services.mediamtx = {
-      environment = cfg.env;
-
       after = [ "network.target" ];
       wantedBy = [ "multi-user.target" ];
 
-      path = with pkgs; [
-        ffmpeg
-      ];
+      environment = cfg.env;
 
       serviceConfig = {
         DynamicUser = true;
         User = "mediamtx";
         Group = "mediamtx";
-
-        LogsDirectory = "mediamtx";
-
-        # user likely may want to stream cameras, can't hurt to add video group
-        SupplementaryGroups = "video";
-
-        ExecStart = "${package}/bin/mediamtx /etc/mediamtx.yaml";
+        SupplementaryGroups = lib.mkIf cfg.allowVideoAccess "video";
+        ExecStart = "${cfg.package}/bin/mediamtx /etc/mediamtx.yaml";
       };
     };
   };

nixos/tests/all-tests.nix

···
   matrix-conduit = handleTest ./matrix/conduit.nix {};
   matrix-synapse = handleTest ./matrix/synapse.nix {};
   mattermost = handleTest ./mattermost.nix {};
+  mediamtx = handleTest ./mediamtx.nix {};
   mediatomb = handleTest ./mediatomb.nix {};
   mediawiki = handleTest ./mediawiki.nix {};
   meilisearch = handleTest ./meilisearch.nix {};

nixos/tests/mediamtx.nix

···
+import ./make-test-python.nix ({ pkgs, lib, ...} :
+
+{
+  name = "mediamtx";
+  meta.maintainers = with lib.maintainers; [ fpletz ];
+
+  nodes = {
+    machine = { config, ... }: {
+      services.mediamtx = {
+        enable = true;
+        settings = {
+          metrics = true;
+          paths.all.source = "publisher";
+        };
+      };
+
+      systemd.services.rtmp-publish = {
+        description = "Publish an RTMP stream to mediamtx";
+        after = [ "mediamtx.service" ];
+        bindsTo = [ "mediamtx.service" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          DynamicUser = true;
+          Restart = "on-failure";
+          RestartSec = "1s";
+          TimeoutStartSec = "10s";
+          ExecStart = "${lib.getBin pkgs.ffmpeg-headless}/bin/ffmpeg -re -f lavfi -i smptebars=size=800x600:rate=10 -c libx264 -f flv rtmp://localhost:1935/test";
+        };
+      };
+
+      systemd.services.rtmp-receive = {
+        description = "Receive an RTMP stream from mediamtx";
+        after = [ "rtmp-publish.service" ];
+        bindsTo = [ "rtmp-publish.service" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          DynamicUser = true;
+          Restart = "on-failure";
+          RestartSec = "1s";
+          TimeoutStartSec = "10s";
+          ExecStart = "${lib.getBin pkgs.ffmpeg-headless}/bin/ffmpeg -y -re -i rtmp://localhost:1935/test -f flv /dev/null";
+        };
+      };
+    };
+  };
+
+  testScript = ''
+    start_all()
+
+    machine.wait_for_unit("mediamtx.service")
+    machine.wait_for_unit("rtmp-publish.service")
+    machine.wait_for_unit("rtmp-receive.service")
+    machine.wait_for_open_port(9998)
+    machine.succeed("curl http://localhost:9998/metrics | grep '^rtmp_conns.*state=\"publish\".*1$'")
+    machine.succeed("curl http://localhost:9998/metrics | grep '^rtmp_conns.*state=\"read\".*1$'")
+  '';
+})

pkgs/servers/mediamtx/default.nix

···
 { lib
 , fetchFromGitHub
 , buildGoModule
+, nixosTests
 }:
 
 buildGoModule rec {
   pname = "mediamtx";
-  version = "0.23.8";
+  version = "1.0.0";
 
   src = fetchFromGitHub {
-    owner = "aler9";
+    owner = "bluenviron";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-ICH102Z18dbabXVYgxCX4JTQ75v0A9wx2pIsZHIXDFg=";
+    hash = "sha256-SKNCQu5uRAxKpQbceha50K4ShV7mE0VI1PGFVAlWq4Q=";
   };
 
-  vendorHash = "sha256-uqcv05AHwwPxrix+FWSWpV8vKFqKQsMn8qEgD71zgo8=";
+  vendorHash = "sha256-mPnAlFHCJKXOdmKP3Ff7cQJMStKtu4Sa7iYuot5/IKE=";
 
   # Tests need docker
   doCheck = false;
···
     "-X github.com/bluenviron/mediamtx/internal/core.version=v${version}"
   ];
 
+  passthru.tests = { inherit (nixosTests) mediamtx; };
+
   meta = with lib; {
     description =
       "Ready-to-use RTSP server and RTSP proxy that allows to read and publish video and audio streams"
     ;
     inherit (src.meta) homepage;
     license = licenses.mit;
-    maintainers = with maintainers; [ ];
+    mainProgram = "mediamtx";
+    maintainers = with maintainers; [ fpletz ];
   };
-
 }