docker系列一安裝docker

卸載舊的干擾文件：

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

安裝所需的軟件包:

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

使用以下命令來設置穩定的倉庫:

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

安裝 Docker Engine-Community:

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

啓動 Docker:

systemctl start docker