centos 下 docker 安裝

1. wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-17.12.1.ce-1.el7.centos.x86_64.rpm

2. sudo yum install docker-ce-17.12.1.ce-1.el7.centos.x86_64.rpm -y

3. sudo systemctl start docker

4. sudo docker run hello-world

5. sudo tee /etc/docker/daemon.json <<-'EOF'
    {
         "registry-mirrors": ["https://jhkfj37o.mirror.aliyuncs.com"]
    }
   EOF

6. sudo systemctl daemon-reload

7. sudo systemctl restart docker