Teach you how to use Portainer to manage multiple Docker container environments

Portainer manages multiple Docker container environments

1. Environmental Preparation

# aliyun 2 cores 8G
139.196.95.123 Install docker and Portainer
# aliyun 1 core 2G 
47.100.34.199 install docker
# qingcloud 1 core 2G
139.198.167.214 Install Docker

2. Manage Docker

2.1 Install and run portaner

Install portaner on aliyun 2 core 8G server

# Install portainer
docker pull portainer/portainer
# Start portainer
docker run -d -p 8080:9000 --restart=always -v /var/run/docker.sock:/var/run/docker.sock --name prtainer portainer/portainer

systemctl daemon-reload
139.198.167.214:2375

2.2 Modify the configuration file

Modify /usr/lib/systemd/system/docker.service on all three machines

# Modify the configuration file vim /usr/lib/systemd/system/docker.service
# Add configuration file content ExecStart= xxxx -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock
xxx represents the original parameters, append -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock content # Save the startup file and restart the service systemctl daemon-reload
systemctl restart docker
# Check whether it is effective ss -unlpt | grep 2375 

2.3 Add Node

# Name docker-prod01
docker-prod02
# IP address 47.100.34.199:2375
139.198.167.214:2375

2.4 Effect diagram

The effect diagram of the added docker node is as follows.

3. Pitfall Records

3.1connection refused

FailureGet http://47.100.34.199:2375/_ping: dial tcp 47.100.34.199:2375: connect: connection refused

You need to modify the configuration file information and add -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock content

This is the end of this article about managing multiple Docker containers with Portainer. For more information about Portainer Docker containers, please search for previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope you will support 123WORDPRESS.COM in the future!