Merge pull request #116037 from petabyteboy/feature/jitsi-exporter

prometheus-jitsi-exporter: init at 0.2.18

nixos/modules/services/monitoring/prometheus/exporters.nix

···
     "dovecot"
     "fritzbox"
     "json"
+    "jitsi"
     "keylight"
     "knot"
     "lnd"

nixos/modules/services/monitoring/prometheus/exporters/jitsi.nix

···
+{ config, lib, pkgs, options }:
+
+with lib;
+
+let
+  cfg = config.services.prometheus.exporters.jitsi;
+in
+{
+  port = 9700;
+  extraOpts = {
+    url = mkOption {
+      type = types.str;
+      default = "http://localhost:8080/colibri/stats";
+      description = ''
+        Jitsi Videobridge metrics URL to monitor.
+        This is usually /colibri/stats on port 8080 of the jitsi videobridge host.
+      '';
+    };
+    interval = mkOption {
+      type = types.str;
+      default = "30s";
+      example = "1min";
+      description = ''
+        How often to scrape new data
+      '';
+    };
+  };
+  serviceOpts = {
+    serviceConfig = {
+      ExecStart = ''
+        ${pkgs.prometheus-jitsi-exporter}/bin/jitsiexporter \
+          -url ${escapeShellArg cfg.url} \
+          -host ${cfg.listenAddress} \
+          -port ${toString cfg.port} \
+          -interval ${toString cfg.interval} \
+          ${concatStringsSep " \\\n  " cfg.extraFlags}
+      '';
+    };
+  };
+}

nixos/tests/prometheus-exporters.nix

···
       '';
     };
 
+    jitsi = {
+      exporterConfig = {
+        enable = true;
+      };
+      metricProvider = {
+        systemd.services.prometheus-jitsi-exporter.after = [ "jitsi-videobridge2.service" ];
+        services.jitsi-videobridge = {
+          enable = true;
+          apis = [ "colibri" "rest" ];
+        };
+      };
+      exporterTest = ''
+        wait_for_unit("jitsi-videobridge2.service")
+        wait_for_open_port(8080)
+        wait_for_unit("prometheus-jitsi-exporter.service")
+        wait_for_open_port(9700)
+        wait_until_succeeds(
+            'journalctl -eu prometheus-jitsi-exporter.service -o cat | grep -q "key=participants"'
+        )
+        succeed("curl -sSf 'localhost:9700/metrics' | grep -q 'jitsi_participants 0'")
+      '';
+    };
+
     json = {
       exporterConfig = {
         enable = true;

pkgs/servers/monitoring/prometheus/jitsi-exporter.nix

···
+{ lib, buildGoModule, fetchgit, nixosTests }:
+
+buildGoModule rec {
+  pname = "jitsiexporter";
+  version = "0.2.18";
+
+  src = fetchgit {
+    url = "https://git.xsfx.dev/prometheus/jitsiexporter";
+    rev = "v${version}";
+    sha256 = "1cf46wp96d9dwlwlffcgbcr0v3xxxfdv6il0zqkm2i7cfsfw0skf";
+  };
+
+  vendorSha256 = null;
+
+  passthru.tests = { inherit (nixosTests.prometheus-exporters) jitsi; };
+
+  meta = with lib; {
+    description = "Export Jitsi Videobridge metrics to Prometheus";
+    homepage = "https://git.xsfx.dev/prometheus/jitsiexporter";
+    license = licenses.mit;
+    maintainers = with maintainers; [ petabyteboy ];
+  };
+}

pkgs/top-level/all-packages.nix

···
   prometheus-fritzbox-exporter = callPackage ../servers/monitoring/prometheus/fritzbox-exporter.nix { };
   prometheus-gitlab-ci-pipelines-exporter = callPackage ../servers/monitoring/prometheus/gitlab-ci-pipelines-exporter.nix { };
   prometheus-haproxy-exporter = callPackage ../servers/monitoring/prometheus/haproxy-exporter.nix { };
+  prometheus-jitsi-exporter = callPackage ../servers/monitoring/prometheus/jitsi-exporter.nix { };
   prometheus-json-exporter = callPackage ../servers/monitoring/prometheus/json-exporter.nix { };
   prometheus-keylight-exporter = callPackage ../servers/monitoring/prometheus/keylight-exporter.nix { };
   prometheus-knot-exporter = callPackage ../servers/monitoring/prometheus/knot-exporter.nix { };