swarm-guide

创建两个虚拟机

1 2	$ docker-machine create --driver virtualbox myvm1 $ docker-machine create --driver virtualbox myvm2

登陆虚拟机，并以root权限修改配置

1 2	$ docker-machine ssh myvm1 $ sudo -i

创建Swarm集群

1 2	$ docker-machine ssh myvm1 "docker swarm init --advertise-addr 192.168.99.100:2377" $ docker-machine ssh myvm2 "docker swarm join --token <token> <ip>:<port>"

创建

$ vi getstartedlab.yml
version: "3"
services:
  web:
    image: docker pull nginx:1.10.1-alpine
    deploy:
      replicas: 5
      resources:
        limits:
          cpus: "0.1"
          memory: 50M
      restart_policy:
        condition: on-failure
    ports:
      - "80:80"
    networks:
      - webnet
networks:
  webnet:
$ docker-machine scp getstartedlab.yml myvm1:~
$ docker-machine ssh myvm1 "docker stack deploy -c getstartedlab.yml getstartedlab"

查看

$ docker-machine ssh myvm1 "docker stack ps getstartedlab"

ID            NAME        IMAGE              NODE   DESIRED STATE
jq2g3qp8nzwx  test_web.1  username/repo:tag  myvm1  Running
88wgshobzoxl  test_web.2  username/repo:tag  myvm2  Running
vbb1qbkb0o2z  test_web.3  username/repo:tag  myvm2  Running
ghii74p9budx  test_web.4  username/repo:tag  myvm1  Running
0prmarhavs87  test_web.5  username/repo:tag  myvm2  Running

服务访问

滚动升级

1	docker service update --image redis:3.0.7 redis

封锁节点

1 2	docker node update --availability drain <NODE-ID> docker node update --availability active <NODE-ID>

概念

stack > service > task

docker stack ls              # List all running applications on this Docker host
docker stack deploy -c <composefile> <appname>  # Run the specified Compose file
docker stack services <appname>       # List the services associated with an app
docker stack ps <appname>   # List the running containers associated with an app
docker stack rm <appname>                             # Tear down an application