Add skeleton for Blackbox exported (monitor HTTP services)

pica-metrologie/docker-compose.yml

@@ -85,8 +85,8 @@ services:
       - "-notifier.url=http://alertmanager:9093"
       # HTTP server for vmagent's own metrics
       - "-httpListenAddr=:8880"
-      # Evaluate rules every 10 minutes
-      - "-evaluationInterval=10m"
+      # By default, evaluate rules every 1 minute
+      - "-evaluationInterval=1m"
       - "-loggerOutput=stdout"
     volumes:
       - ./vmalert-rules.yml:/config/vmalert-rules.yml
@@ -106,3 +106,16 @@ services:
     networks:
       - metrics
     restart: unless-stopped
+
+  # Monitors HTTP or DNS endpoints and store results in VictoriaMetrics
+  # Very useful to know when a service is down
+  blackbox:
+    image: prom/blackbox-exporter:v0.19.0
+    container_name: blackbox
+    command:
+      - "--config.file=/config/blackbox.yml"
+    volumes:
+      - ./blackbox.yml:/config/blackbox.yml
+    networks:
+      - metrics
+    restart: unless-stopped