Centos7 Configuring Docker Swarm and Installation Portainer

First, create a cluster

1. Initialize the manager node (XXX is the manager's IP address)

docker swarm init --advertise-addr xxx.xxx.xxx.xxx

Will output the following, note Bold Italic command, join the cluster need to use

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, the worker joins the cluster, runs the above command on the other Docker server

docker swarm join --token xxx xxx.xxx.xxx.xxx:2377

3. View cluster status

docker node ls

Second, installation Portainer

1. Create a portainer-stack.yml file

version: ‘3‘services:  portainer:    image: portainer/portainer    volumes:      - "/var/run/docker.sock:/var/run/docker.sock"      - "/data/portainer:/data"    deploy:      placement:        constraints: [node.role == manager] # 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: [svc=portainer]    ports:      - 9000:9000

2. Start Portainer Service

docker stack deploy -c portainer-stack.yml portainer

3, Access Portainer and change the password (XXX for any one of the cluster ip,swarm will automatically do load balancing)

Visit http://xxx.xxx.xxx.xxx:9000

Centos7 Configuring Docker Swarm and Installation Portainer