Docker swarm 实战-部署wordpress
创建一个overlay的网络
docker network create -d overlay demo
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docker network ls
NETWORK ID NAME DRIVER SCOPE
feea5ba8507b bridge bridge local
6imq8da3vcwv demo overlay swarm
84e129614ea7 docker_gwbridge bridge local
d1b0002bf8c8 host host local
dgfigrlal70j ingress overlay swarm
633e169e521c none null local
在swarm集群中，创建一个网络之后并不会立即同步到其他节点中，只有当该网络被某个服务使用时，才会同步过去。
创建一个mysql服务
docker service create --name mysql --env MYSQL_ROOT_PASSWORD=root --env MYSQLDATABASE=wordpress --network=demo --mount type=volume,source=mysql-data,destination=/var/lib/mysql mysql:5.7
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overall progress: 1 out of 1 tasks
1/1: running [==================================================>]
verify: Service converged
docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
ep1vpcjhsevq mysql replicated 1/1 mysql:5.7
docker service ps mysql
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
rzl03fvgyjkv mysql.1 mysql:latest swarm-manager Running Running 2 minutes ago
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
34aae70f6c30 mysql:5.7 "docker-entrypoint.s…" 4 minutes ago Up 4 minutes 3306/tcp mysql.1.rzl03fvgyjkvruwfcylsprwub
创建一个wordpress服务
docker service create --name wordpress -p 80:80 --network=demo --env WORDPRESS_DB_PASSWORD=root --env WORDPRESS+DB_HOST=mysql wordpress
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overall progress: 1 out of 1 tasks
1/1: running [==================================================>]
verify: Service converged
docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
ep1vpcjhsevq mysql replicated 1/1 mysql:latest
7w40cbn1clnd wordpress replicated 1/1 wordpress:latest *:80->80/tcp
docker service ps wordpress
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
yknadxszq302 wordpress.1 wordpress:latest swarm-worker1 Running Running 6 seconds ago
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