标签:use hat ges emctl tomat lin star workflow mirrors
1、系统要求
Docker CE 支持 64 位版本 CentOS 7,并且要求内核版本不低于 3.10。 CentOS 7
满足最低内核的要求,但由于内核版本比较低,部分功能(如 overlay2 存储层
驱动)无法使用,并且部分功能可能不太稳定。
2、配置阿里云Docker Yum源
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
3、卸载旧版本
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
4、使用脚本自动安装Docker
curl -fsSL get.docker.com -o get-docker.sh sudo sh get-docker.sh --mirror Aliyun
5、启动 Docker CE
sudo systemctl enable docker
sudo systemctl start docker
6、建立 docker 用户组
默认情况下, docker 命令会使用 Unix socket 与 Docker 引擎通讯。而只有root 用户和 docker 组的用户才可以访问 Docker 引擎的 Unix socket。出于安全考虑,一般 Linux 系统上不会直接使用 root 用户。因此,更好地做法是将需要使用 docker 的用户加入 docker 用户组。
建立 docker 组:
sudo groupadd docker
将当前用户加入 docker 组:
sudo usermod -aG docker $USER
退出当前终端并重新登录,进行如下测试。
测试 Docker 是否安装正确
docker run hello-world Unable to find image ‘hello-world:latest‘ locally latest: Pulling from library/hello-world d1725b59e92d: Pull complete Digest: sha256:0add3ace90ecb4adbf7777e9aacf18357296e799f81cabc9f de470971e499788 Status: Downloaded newer image for hello-world:latest Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Do cker Hub. (amd64) 3. The Docker daemon created a new container from that image wh ich runs the executable that produces the output you are currently readin g. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID : https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/get-started/
若能正常输出以上信息,则说明安装成功。
标签:use hat ges emctl tomat lin star workflow mirrors
原文地址:https://www.cnblogs.com/guantouping/p/10604631.html