docker-compose.yml

services:
  consul:
    image: docker.io/hashicorp/consul
    restart: always
    command: ["agent",
                "-server",
                "-bootstrap",
                "-data-dir=/consul/data",
                "-client=0.0.0.0",
                "-ui"]
    ports:
      - "8500:8500"
    networks:
      zero-downtime:

  greeter-server-blue:
    image: greeter-server
    build:
      context: .
      dockerfile: Dockerfile
      args:
        - DIRECTORY=./server
    command: [ "-delay=5", "-port=50000" ]
    depends_on:
      - consul
    networks:
      zero-downtime:

  greeter-server-green:
    image: greeter-server
    build:
      context: .
      dockerfile: Dockerfile
      args:
        - DIRECTORY=./server
    command: [ "-delay=5", "-port=50001" ]
    depends_on:
      - consul
    networks:
      zero-downtime:

  greeter-client:
    image: greeter-client
    build:
      context: .
      dockerfile: Dockerfile
      args:
        - DIRECTORY=./client
    command: [ "-name=${NAME:-bertrand}" ]
    depends_on:
      - consul
      - greeter-server-green
      - greeter-server-blue
    networks:
      zero-downtime:

networks:
  zero-downtime: