Docker swarm simple tutorial

swarm three virtual machines 132,133,134

1. Initialize a cluster and add yourself to the cluster

# Initialize the master node docker swarm init --advertise-addr 192.168.220.132

# 133,134 join worker Execute docker swarm join-token worker on 132 # Add worker (manager-- master node management node)

# Execute docker swarm join --token SWMTKN-1-49blzc9unsa1e8vcb4sonqx2q2rq02588jqjbhfzykowgtaoy1-57s37b21k0h39j0ywf6vd6la1 on the corresponding machine 192.168.220.132:2377 

2. View the node docker node ls

3. The master node creates service nginx replicas 1 (one service)

docker service create --replicas 1 --name manageNg -p 80:80 nginx

All three IPs can be accessed normally, but there is only one container instance.

View services: docker service ls

docker service ls

Dynamic scaling: docker service scale manageNg=5
Create five services

docker service scale manageNg=5 

5. View the instance; docker service ps manageNg

This is the end of this article about the simple use of Docker swarm. For more information about the use of Docker swarm, please search for previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope everyone will support 123WORDPRESS.COM in the future!