Install

Document:

Docker 从入门到实践

https://docs.docker.com/install/linux/docker-ce/centos/

Below is short guide for using Docker:

Remove old version

sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

Install

sudo yum install -y yum-utils \
           device-mapper-persistent-data \
           lvm2

sudo yum-config-manager \
     --add-repo \
     https://download.docker.com/linux/centos/docker-ce.repo

yum install docker-ce docker-ce-cli containerd.io

# or use one step install
curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh --mirror Aliyun

Start docker

systemctl enable docker
systemctl start docker

Create user group for docker

groupadd docker
usermod -aG docker $USER

#sudo chmod 777 /var/run/docker.sock . 

Test

docker run hello-world

Uninstall Docker CE

1. Uninstall the Docker package:

   $ sudo yum remove docker-ce

2. Images, containers, volumes, or customized configuration files on your host are not automatically removed. To delete all images, containers, and volumes:

   $ sudo rm -rf /var/lib/docker