Installer: Bootstrap optional PostgreSQL/Redis (#3152)

* Make optional postgres and redis in installer

install/config/docker-compose.yml

@@ -1,7 +1,7 @@
 name: pangolin
 services:
   pangolin:
-    image: docker.io/fosrl/pangolin:{{if .IsEnterprise}}ee-{{end}}{{.PangolinVersion}}
+    image: docker.io/fosrl/pangolin:{{if .IsEnterprise}}ee-{{end}}{{if .IsPostgreSQL}}postgresql-{{end}}{{.PangolinVersion}}
     container_name: pangolin
     restart: unless-stopped
     deploy:
@@ -10,6 +10,20 @@ services:
           memory: 1g
         reservations:
           memory: 256m
+{{if or .IsPostgreSQL .IsRedis}}
+    depends_on:
+    {{if .IsPostgreSQL}}
+      postgres:
+        condition: service_healthy
+    {{end}}
+    {{if .IsRedis}}
+      redis:
+        condition: service_healthy
+    {{end}}
+    networks:
+      - default
+      - backend
+{{end}}
     volumes:
       - ./config:/app/config
     healthcheck:
@@ -60,8 +74,56 @@ services:
       - ./config/letsencrypt:/letsencrypt # Volume to store the Let's Encrypt certificates
       - ./config/traefik/logs:/var/log/traefik # Volume to store Traefik logs
 
+{{if .IsPostgreSQL}}
+  postgres:
+    image: postgres:18
+    container_name: postgres
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: pangolin
+      POSTGRES_PASSWORD: {{.IsPostgreSQLPass}}
+      POSTGRES_DB: pangolin
+    volumes:
+      - ./postgres18:/var/lib/postgresql
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U pangolin"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - backend
+{{end}}
+
+{{if .IsRedis}}
+  redis:
+    image: redis:8-trixie
+    container_name: redis
+    restart: unless-stopped
+    command: >
+      redis-server
+      --save 3600 1000
+      --appendonly yes
+      --requirepass {{.IsRedisPass}}
+    volumes:
+      - ./redis8:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "-a", "{{.IsRedisPass}}", "ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 3
+      start_period: 10s
+    networks:
+      - backend
+{{end}}
+
 networks:
   default:
     driver: bridge
-    name: pangolin
+    name: pangolin_frontend
 {{if .EnableIPv6}}    enable_ipv6: true{{end}}
+{{if or .IsPostgreSQL .IsRedis}}
+  backend:
+    driver: bridge
+    name: pangolin_backend
+    internal: true
+{{end}}