enable metrics endpoint

manifests/pleroma/configmap.yaml

@@ -31,7 +31,26 @@ data:
       static_dir: "/static-files/",
       show_scrobbles: false
 
-
+    config :pleroma, Pleroma.PromEx,
+      disabled: false,
+      manual_metrics_start_delay: :no_delay,
+      drop_metrics_groups: [],
+      # grafana: [
+      #   host: System.get_env("GRAFANA_HOST", "http://localhost:3000"),
+      #   auth_token: System.get_env("GRAFANA_TOKEN"),
+      #   upload_dashboards_on_start: false,
+      #   folder_name: "BEAM",
+      #   annotate_app_lifecycle: true
+      # ],
+      metrics_server: [
+        port: 4021,
+        path: "/metrics",
+        protocol: :http,
+        pool_size: 5,
+        cowboy_opts: [],
+        auth_strategy: :none
+      ],
+      datasource: "Prometheus"
 
     # config :pleroma, :http, proxy_url: {:socks5h, System.get_env("SOCKS_ADDRESS"), System.get_env("SOCKS_PORT")}
     config :pleroma, :http,