CentOS7 use Ali cloud source installation Docker

installation steps

1, delete the installed Docker

# Uninstall installed docker
sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-selinux \
                  docker-engine-selinux \
                  docker-engine
     

2, Ali cloud Docker Yum configuration source

# Set up repository
sudo yum install -y yum-utils device-mapper-persistent-data lvm2

# Use Aliyun Docker
sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

3, install the specified version

View Docker Version:

yum list docker-ce --showduplicates

3.1, install the older version

Note: You need to specify the complete package name rpm package, and add --setopt = obsoletes = 0 parameter:

# Install docker
# on a new system with yum repo defined, forcing older version and ignoring obsoletes introduced by 17.06.0
yum install -y --setopt=obsoletes=0 \
    docker it-17.03.2.ce-1.el7.centos.x86_64 \
    docker it-selinux-17.03.2.ce-1.el7.centos.noarch

3.2, install the latest version Docker

Note: Install the latest version Docker, without adding the version number:

sudo yum install docker-ce

 

4, Ali cloud Docker mirroring enabled accelerated

https://cr.console.aliyun.com

Docker for the user of the client version greater than 1.10.0
You can use accelerator /etc/docker/daemon.json by modifying the daemon configuration file
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://xxx.mirror.aliyuncs.com"]
}
EOF

5, start Docker service

# Start docker service
systemctl enable docker
systemctl start docker