Centos7配置Docker Swarm及安装Portainer
一、创建集群1、初始化manager节点（xxx为manager的ip地址）
docker swarm init --advertise-addr xxx.xxx.xxx.xxx
会输出以下内容，注意加粗斜体命令，加入集群需要使用
Swarm initialized: current node (pk4p936t4e03cpse3izuws07s) is now a manager.
To add a worker to this swarm, run the following command:
docker swarm join --token xxx xxx.xxx.xxx.xxx:2377
To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.
2、worker加入集群，在其他docker服务器运行上面命令
docker swarm join --token xxx xxx.xxx.xxx.xxx:2377
3、查看集群情况
docker node ls
http://i2.运维网.com/images/blog/201810/18/7e3d604be0b8f60a20c98e93fec4f1af.png
二、安装Portainer
1、创建portainer-stack.yml文件
version: '3'
services:
portainer:
image: portainer/portainer
volumes:
- "/var/run/docker.sock:/var/run/docker.sock"
- "/data/portainer:/data"
deploy:
placement:
constraints: # 控制管理界面部署在manager上
replicas: 1
restart_policy:
condition: on-failure
resources:
limits:
cpus: "0.2"
memory: 200M
labels:
ports:
- 9000:9000
2、启动portainer服务
docker stack deploy -c portainer-stack.yml portainer
3、访问portainer并修改密码(xxx为集群的任意一台ip，swarm会自动做负载均衡)
访问http://xxx.xxx.xxx.xxx:9000
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