Prometheus support

mod_prometheus/conf/mod_prometheus.yml

@@ -20,23 +20,46 @@ modules:
       - hook: user_send_packet
         type: histogram
         help: "Handling of sent messages duration in millisecond"
-        stanza_label: true
-        host_label: true
+        labels:
+          - host
+          - stanza
+      # Histogram for all modules of a hook:
+      - hook: user_receive_packet
+        type: histogram
+        help: "Handling of received messages duration in millisecond"
+        labels:
+          - host
+          - stanza
+          - module
       # Counter for a hook:
-      - hook: user_send_packet
+      - hook: sm_register_connection_hook
+        type: counter
+        labels:
+          - host
+          - stanza
+      # Counter for all modules of a hook:
+      - hook: sm_remove_connection_hook
         type: counter
-        help: "Number of sent messages"
-      # Histograms only for some callbacks of a hook:
+        labels:
+          - host
+          - stanza
+          - module
+        help: "Number of closed c2s sessions"
+      # Histogram for some modules (callbacks) of a hook:
       - hook: user_send_packet
         type: histogram
-        host_label: true
+        labels:
+          - host
         collect:
           - module: mod_carboncopy
             function: user_send_packet
             help: "Handling of carbon copied messages in millisecond"
           - module: mod_mam
             function: user_send_packet
             help: "Handling of MAM messages in millisecond"
+            labels:
+              # It also inherits above `host` label
+              - stanza
             buckets:
               - 10
               - 100

mod_prometheus/example/docker-compose.yml

@@ -3,6 +3,7 @@ version: '3.7'
 services:
 
   prometheus:
+    network_mode: "host"
     image: docker.io/prom/prometheus
     container_name: prometheus
     ports:
@@ -11,6 +12,7 @@ services:
       - ./prometheus.yml:/etc/prometheus/prometheus.yml
 
   grafana:
+    network_mode: "host"
     image: docker.io/grafana/grafana-enterprise
     container_name: grafana
     ports:

mod_prometheus/example/prometheus.yml

@@ -23,4 +23,4 @@ scrape_configs:
       - targets: ["localhost:9090"]
   - job_name: "ejabberd"
     static_configs:
-      - targets: ["host.docker.internal:5289"]
+      - targets: ["localhost:5289"]