centos安装docker

1、卸载旧版本docker

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

2、安装yum源

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

3、安装docker

1. 安装最新版本

   $ sudo yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin
   

2. 安装指定版本

   $ yum list docker-ce --showduplicates | sort -rdocker-ce.x86_64  3:18.09.1-3.el7                     docker-ce-stable
   docker-ce.x86_64  3:18.09.0-3.el7                     docker-ce-stable
   docker-ce.x86_64  18.06.1.ce-3.el7                    docker-ce-stable
   docker-ce.x86_64  18.06.0.ce-3.el7                    docker-ce-stable$ sudo yum install docker-ce- docker-ce-cli- containerd.io docker-compose-plugin
   

3. 配置docker

   /etc/docker/daemon.json
   {"registry-mirrors": ["https://镜像加速.mirror.aliyuncs.com"],"insecure-registries": ["私有http镜像仓库"],"log-driver": "json-file","log-opts": {"max-size": "100m","max-file": "3","labels": "production_status","env": "os,customer"},"data-root": "/var/lib/docker" #将 Docker 的数据保存到一块单独的盘上，Docker 的数据主要包括镜像和容器日志数据。通过设置 --data-root 参数来实现
   }
   

4. 启动docker

   $ systemctl daemon-reload
   $ systemctl enable docker
   $ systemctl start docker
   

5. 测试验证

   $ sudo docker run hello-world