Installation of Docker

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0、Env

Environment :

  • CentOS Linux release 7.9.2009 (Core)
  • Client: Docker Engine - Community Version: 20.10.5
  • Server: Docker Engine - Community Version: 20.10.5

Installation (text-based installer)

1、Download docker-ce.repo

wget -O /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/centos/docker-ce.repo

2、Change sources to TUNA

sed -i 's+https://download.docker.com+https://mirror.nju.edu.cn/docker-ce+' /etc/yum.repos.d/docker-ce.repo

3、Installating

yum makecache fast
yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

4、Start service

systemctl start docker

5、Verify

docker --version

6、e.g

docker run hello-world

If you’ve seen such this whitch means the docker have succeed run on you system.
image.png

7、Some improvements

change source
vim /etc/docker/daemon.json
touch it if there was not such file

{
  "registry-mirrors": [
    "https://hub-mirror.c.163.com",
    "https://mirror.baidubce.com"
  ]
}