docker-compose file containing a running instance of Redis / Postgres / PG_Admin

docker-compose.yml

# Run the file with the command: docker-compose -p databases up -d
# Connect other instances using the following network informations 
# networks: 
#   databases_db_network: # databases come from the projet name from command -p PROJECT_NAME run just before
#     external: true 

version: "3.4"

services:
  redis:
    container_name: db_redis
    image: "redis:alpine"
    restart: unless-stopped
    ports:
      - "6379:6379"
    environment:
      - REDIS_REPLICATION_MODE=master
    networks:
      - db_network

  pgadmin:
    container_name: db_admin_pg
    image: dpage/pgadmin4
    restart: unless-stopped
    ports:
      - "5050:80"
    volumes:
      - db_pgadmin:/root/.pgadmin
    networks:
      - db_network
    environment:
      - PGADMIN_DEFAULT_EMAIL=admin@admin.com
      - PGADMIN_DEFAULT_PASSWORD=admin123
    depends_on:
      - db_postgres

  postgres:
    container_name: db_postgres
    image: postgres:12-alpine
    networks:
      - db_network
    ports:
      - "5432:5432"
    volumes:
      - db_pgdata:/data/postgres
    restart: unless-stopped
    environment:
      - POSTGRES_PASSWORD=PASSWORD
      - POSTGRES_USER=ROOT
      - POSTGRES_DB=DB_DEFAULT
      - PG_DATA=/data/postgres
      - TZ=Europe/Paris

networks:
  db_network:
    driver: bridge

volumes:
  db_pgdata:
  db_pgadmin: