安装Docker服务

1、使用 root 权限更新 yum 包 ：yum -y update

2、安装需要的软件包：yum install -y yum-utils device-mapper-persistent-data lvm2

3、设置 yum 源：yum-config-manager --add-repo http://download.docker.com/linux/centos/docker-ce.repo

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4、卸载旧版本

yum remove docker docker-common docker-selinux docker-engine

5、查看docker可用版本：yum list docker-ce --showduplicates | sort -r

6、选择最新或者指定版本：yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

7、启动 Docker 并设置开机自启：systemctl start docker

systemctl enable docker

相关问题

systemctl start network命令重启网卡失败，将命令改为systemctl restart NetworkManager

Failed to set locale, defaulting to C.UTF-8 

echo "export LC_ALL=en_US.utf8" >> /etc/profile

source /etc/profile

解决镜像源的问题

源文件备份

cd /etc/yum.repos.d/ && mkdir backup && mv *repo backup/

下载源文件

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo

更新源地址

sed -i -e "s|mirrors.cloud.aliyuncs.com|mirrors.aliyun.com|g " /etc/yum.repos.d/CentOS-*

sed -i -e "s|releasever|releasever-stream|g" /etc/yum.repos.d/CentOS-*

生成缓存

yum clean all && yum makecache

安装Docker出现和Podman冲突：

yum erase podman buildah