REHL 8安装docker

1.卸载旧版本docker，包括rehl自带的podman

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

清理旧的目录数据

rm -rf /var/lib/docker

2.添加docker-ce repo

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

或者手动添加配置文件

cat >/etc/yum.repos.d/docker.repo<<EOF

[docker-ce-edge]

name=Docker CE Edge - \$basearch

baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/\$basearch/edge

enabled=1

gpgcheck=1

gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

EOF

3.查看可用docker软件版本

yum list docker-ce --showduplicates | sort -r

 4.安装最新版

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

5.安装指定版本

sudo yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io docker-buildx-plugin docker-compose-plugin

6.启动docker

sudo systemctl start docker && systemctl enable docker

7.测试docker

sudo docker run hello-world