技術標籤：java基礎筆記

docker compose

1 安裝

1）通過命令安裝

curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

如果下載失敗，可手動下載在傳到linux上安裝

2）新增執行許可權

chmod +x /usr/local/bin/docker-compose

3）測試安裝結果：

docker-compose --version

2 使用

1）在linxu上建立一個資料夾dockercompose

放入jar包，Dockerfile檔案，docker-compose.yml檔案，Dockerfile檔案寫法參考前文，docker-compose.yml的簡單寫法

version: '2'
services:
#要啟動的服務
  pic:
#繫結的Dockerfile檔案路徑
    build: .
#埠
    ports:
      - "8888:8888"

在資料夾下執行命令：docker-compose up -d (會自動構建映象，並使用映象啟動容器 ,服務就啟動好了)

配置檔案示例：

version: "3"
services:

  redis:
    image: redis:alpine
    ports:
      - "6379"
    networks:
      - frontend
    deploy:
      replicas: 2
      update_config:
        parallelism: 2
        delay: 10s
      restart_policy:
        condition: on-failure

  db:
    image: postgres:9.4
    volumes:
      - db-data:/var/lib/postgresql/data
    networks:
      - backend
    deploy:
      placement:
        constraints: [node.role == manager]

  vote:
    image: dockersamples/examplevotingapp_vote:before
    ports:
      - 5000:80
    networks:
      - frontend
    depends_on:
      - redis
    deploy:
      replicas: 2
      update_config:
        parallelism: 2
      restart_policy:
        condition: on-failure

  result:
    image: dockersamples/examplevotingapp_result:before
    ports:
      - 5001:80
    networks:
      - backend
    depends_on:
      - db
    deploy:
      replicas: 1
      update_config:
        parallelism: 2
        delay: 10s
      restart_policy:
        condition: on-failure

  worker:
    image: dockersamples/examplevotingapp_worker
    networks:
      - frontend
      - backend
    deploy:
      mode: replicated
      replicas: 1
      labels: [APP=VOTING]
      restart_policy:
        condition: on-failure
        delay: 10s
        max_attempts: 3
        window: 120s
      placement:
        constraints: [node.role == manager]

  visualizer:
    image: dockersamples/visualizer:stable
    ports:
      - "8080:8080"
    stop_grace_period: 1m30s
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock"
    deploy:
      placement:
        constraints: [node.role == manager]

networks:
  frontend:
  backend:

volumes:
  db-data: