[+] add Prometheus service to Docker Compose file

docker-compose.yml

@@ -63,6 +63,16 @@ services:
       postgres:
         condition: service_healthy
 
+  prometheus:
+    image: prom/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+    ports:
+      - 9090:9090
+    restart: unless-stopped
+    volumes:
+      - "./docker/prometheus.yml:/etc/prometheus/prometheus.yml"
+
   add-test-db:
     image: *pgimage
     environment:

docker/prometheus.yml

@@ -0,0 +1,30 @@
+global:
+  scrape_interval: 15s
+  scrape_timeout: 10s
+  evaluation_interval: 15s
+alerting:
+  alertmanagers:
+  - static_configs:
+    - targets: []
+    scheme: http
+    timeout: 10s
+    api_version: v1
+scrape_configs:
+- job_name: prometheus
+  honor_timestamps: true
+  scrape_interval: 15s
+  scrape_timeout: 10s
+  metrics_path: /metrics
+  scheme: http
+  static_configs:
+  - targets:
+    - localhost:9090
+- job_name: pgwatch3
+  honor_timestamps: true
+  scrape_interval: 15s
+  scrape_timeout: 10s
+  metrics_path: /pgwatch3
+  scheme: http
+  static_configs:
+  - targets:
+    - localhost:9187