Integrate postgres to ztnet container

[sinamics]

Based on #193

Pros

• More elegant composer file
• Easier for users to understand the configuration
• Reduces network complexity by eliminating inter-container communication for database access.
• Total downloaded data decreases with ~50MB. ( psql docker image overhead )
• Full support for postgres env, same as orginal image https://hub.docker.com/_/postgres/

Cons

• The integration of PostgreSQL into the ztnet will increase the build time in github action from 8 to 14min for both amd64 and arm64.
• Ztnet image increases in size, compressed ~320MB, compared to ~180MB without postgres.
• Update postgres would require new ztnet build.

Migration Placeholder

Migration Guide: Integrating PostgreSQL into ztnet in Docker Compose

Steps for Migration

1. Update Docker Compose File

Modify your 'docker-compose.yml' to reflect the new configuration.

Remove the PostgreSQL Service

  # postgres:
  #   image: postgres:15.2-alpine
  #   container_name: postgres
  #   restart: unless-stopped
  #   volumes:
  #     - postgres-data:/var/lib/postgresql/data
  #   environment:
  #     POSTGRES_USER: postgres
  #     POSTGRES_PASSWORD: postgres
  #     POSTGRES_DB: ztnet
  #   networks:
  #     - app-network

Update ztnet Service

Configure the 'ztnet' service to include PostgreSQL. Use the 'sinamics/ztnet_postgres' image. ( for testing )
Transfer the postgres-data volume to the ztnet service to preserve existing data continuity.

  ztnet:
    image: sinamics/ztnet:integrate_postgres-28aac98          <--- Testing Image
    # image: sinamics/ztnet
    container_name: ztnet
    working_dir: /app
    volumes:
      - zerotier:/var/lib/zerotier-one
      - postgres-data:/var/lib/postgresql/data   <--- Postgres volume 
    restart: unless-stopped
    ports:
      - 3000:3000
    environment:
     # POSTGRES_HOST: localhost                   <--- Can be removed, defaults to localhost 
     # POSTGRES_PORT: 5432                        <--- Can be removed, defaults to 5432
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: postgres
      NEXTAUTH_URL: "http://10.0.0.32:3000"
      NEXTAUTH_SECRET: "random_secret"
    networks:
      - app-network
    # links:                                     <--- Removed
    #   - postgres                               <--- Removed
    depends_on:
      - zerotier
      # - postgres                               <--- Removed

[sinamics]

Closing for now.