use internal network to connect grafana with db monitor in composes

Author: maximopalopoli

aggregation_mode/docker-compose.yaml

@@ -14,6 +14,8 @@ x-node: &node
     PG_AUTOCTL_MONITOR: "postgresql://autoctl_node@monitor/pg_auto_failover"
   expose:
     - 5432
+  networks:
+    - aligned-network
 
 volumes:
   postgres_data:
@@ -60,6 +62,8 @@ services:
       - "5436:5432"
     command: |
       pg_autoctl create monitor --auth trust --run
+    networks:
+      - aligned-network
 
   node1:
     <<: *node

metrics-docker-compose.yaml

@@ -28,8 +28,8 @@ services:
       - POSTGRES_USER=postgres
       - POSTGRES_PASSWORD=postgres
       - PROMETHEUS_URL=http://prometheus:9090
-      - MONITOR_DB_HOST=host.docker.internal
-      - MONITOR_DB_PORT=5436
+      - MONITOR_DB_HOST=monitor
+      - MONITOR_DB_PORT=5432
       - MONITOR_DB_DB=pg_auto_failover
       - MONITOR_DB_USER=autoctl_node
     extra_hosts: