feat: add separate postgres instance to calcom

apps/calcom/docker-compose.yml

@@ -10,9 +10,11 @@ services:
       - ${APP_PORT}:3000
     networks:
       - tipi_main_network
+    depends_on:
+      - db-calcom
     environment:
-      - DATABASE_HOST=${POSTGRES_HOST}
-      - DATABASE_URL=postgresql://${POSTGRES_USERNAME}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}/calcom
+      - DATABASE_HOST=db-calcom
+      - DATABASE_URL=postgresql://${POSTGRES_USERNAME}:${POSTGRES_PASSWORD}@db-calcom/calcom
       - POSTGRES_USER=${POSTGRES_USERNAME}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
       - POSTGRES_DB=calcom
@@ -55,3 +57,16 @@ services:
       traefik.http.routers.calcom-local.entrypoints: websecure
       traefik.http.routers.calcom-local.service: calcom
       traefik.http.routers.calcom-local.tls: true
+
+  db-calcom:
+    container_name: db-calcom
+    image: postgres:16.1
+    restart: on-failure
+    volumes:
+      - ${APP_DATA_DIR}/data/db:/var/lib/postgresql/data
+    environment:
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+      - POSTGRES_USER=${POSTGRES_USERNAME}
+      - POSTGRES_DB=calcom
+    networks:
+      - tipi_main_network