三、CentOS8/7.5安装Docker CE并配置镜像

1、序言

禁用防火墙

systemctl stop firewalld
systemctl disable firewalld

2、卸载旧的Docker

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

3、设置存储库

sudo yum install -y yum-utils

# 【不推荐】
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo

# 【推荐】
sudo yum-config-manager \
--add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4、安装Docker

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

2020-07-18更新

【问题】CentOS8安装Docker出现下错误

.....
  - package containerd.io-1.2.4-3.1.el7.x86_64 is filtered out by modular filtering
  - package containerd.io-1.2.5-3.1.el7.x86_64 is filtered out by modular filtering
  - package containerd.io-1.2.6-3.3.el7.x86_64 is filtered out by modular filtering
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

【解决方法】

wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.13-3.1.el7.x86_64.rpm

yum -y install ./containerd.io-1.2.13-3.1.el7.x86_64.rpm

5、启动Docker

 systemctl start docker

6、验证Docker是否安装成功

 docker run hello-world

7、配置阿里去容器镜像加速器

1）创建daemon.json文件并配置内容

{
  "registry-mirrors": ["https://******.mirror.aliyuncs.com"]
}

2）重启docker

sudo systemctl daemon-reload
sudo systemctl restart docker

3）、使用docker info查看镜像是否配置成功

......

 Registry Mirrors:
  https://******.mirror.aliyuncs.com/

我是夕阳何处寻，期待和优秀的你一起同行!

夕阳何处寻

2019年07月22日