docker-swarm 简版入门教程

• 1.安装docker环境,参考其他教程

• 2.初始化docker swarm
  docker swarm init [option]

• 3.创建网关 over-lay
  docker network create -d overlay swarm-overlay

• 4.登录私有docker私服
  sudo docker login -u 'username' -p 'password' registry-vpc.cn-hangzhou.aliyuncs.com

• 5.部署deploy
  docker stack deploy -c docker-stack-deloy.yml --with-registry-auth {stackName}

• 6.其他命令

# 查看服务运行情况
docker service ls

# 输出docker swarm service日志
docker service logs -f --tail=100 {serviceName}

# 查看所有堆栈
docker stack ls 

# 查看stack内容器运行情况
docker stack ps {stackName} 

# 删除指定镜像关联的Exited容器
sudo docker container rm $(sudo docker container ls -a|grep 'registry-vpc.cn-hangzhou.aliyuncs.com/xxxxx'|grep 'Exited'|awk '{print $1}')

# 删除未被容器使用关联指定镜像($GIT_COMMIT 为 jenkins中的session级别的环境变量 )
sudo docker rmi $(sudo docker image ls|grep 'registry-vpc.cn-hangzhou.aliyuncs.com/xxxxx'|grep -v $GIT_COMMIT|awk '{print $3}')

# 横向扩容/收缩
docker service scale {serviceName}=2

• 7.其他 docker-stack-deloy.yml 文件参考 (endpoint_mode 默认为 vip 模式)

version: "3.7"
services:
  content-cloud-admin-test:
    image: registry-vpc.cn-hangzhou.aliyuncs.com/xxx/xxx:xxxxx
    ports:
      - "8080:8080"
    networks: 
      swarm-overlay: {}
    #volumes:
    #  - /data/kong/data:/home/kong
    volumes:
      - ./logs/:/opt/xxx/admin/logs
    environment:
      - spring.profiles.active=test
      - JAVA_OPTS=-Xmx512m -Xms512m -Xss256k -XX:MetaspaceSize=256M -XX:+DisableExplicitGC  -XX:+PrintGCDetails -XX:TargetSurvivorRatio=80 -XX:-PrintAdaptiveSizePolicy  -XX:+PrintGCDateStamps -XX:SurvivorRatio=8 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=java_heapdump.hprof  -Xloggc:gc.log
    deploy:
      mode: replicated
      replicas: 1
      #endpoint_mode: dnsrr
      endpoint_mode: vip
      resources:
        limits:
          cpus: "1.0"
          memory: 1024M
        reservations:
          cpus: "0.5"
          memory: 512M
      restart_policy:
        condition: on-failure
        delay: 5s
        window: 60s
      update_config:
        parallelism: 1
        delay: 10s
        monitor: 60s
        order: start-first
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8080"]
      interval: 40s
      timeout: 5s
      retries: 3
      start_period: 90s

networks:
  swarm-overlay:
    driver: overlay
    external: true
    attachable: true