手動創建swarm 和 overlay

ps:
- localhost爲本機物理ip地址

1. 下載swarm鏡像和zookeeper鏡像

docker pull swarm
docker pull zookeeper

2. 修改配置docker配置

• 查找配置文件路徑

[hadoop001@dhc-slaver1 ~]$ systemctl status docker.service
docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)

• 修改配置文件

vim /usr/lib/systemd/system/docker.service
在ExecStart行後添加
-H 0.0.0.0:2375 -H unix:///var/run/docker.sock --cluster-store=zk://172.16.125.128:2181 --cluster-advertise=localhost:2375

• 重新加載配置並重啓

systemctl daemon-reload
systemctl restart docker.service

3. 創建zookeeper容器

docker run --name some-zookeeper --restart always -d zookeeper

4. 創建swarm agent

 docker run --name swarm-agent1 -d swarm join zk://172.16.125.128:2181/swarm-agent --addr=localhost:2375

5. 創建swarm manager

docker run --name swarm-manage -d -p 2376:2375 swarm manage zk://172.16.125.128:2181/swarm-agent

6. 查看運行情況

 docker -H tcp://localhost:2380 ps

7. 在manager上創建網絡

docker network create --driver overlay  n_net

8. 檢查網絡創建情況

• swarm集羣所有機器上

docker network ls