一、安裝Docker
設定centos yum映象源
cd /etc/yum.repos.d/ mkdir backup && mv *repo backup/ wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo yum clean all && yum makecache yum repolist all
解除安裝舊版本(如果安裝過舊版本的話)
yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-selinux \ docker-engine-selinux \ docker-engine \ docker-ce
安裝需要的軟體包yum-util 提供yum-config-manager功能，另外兩個是devicemapper驅動依賴
sudo yum install -y yum-utils device-mapper-persistent-data lvm2 #設定yum源 yum-config-manager \ --add-repo \ https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo sed -i 's/download.docker.com/mirrors.aliyun.com\/docker-ce/g' /etc/yum.repos.d/docker-ce.repo yum makecache
安裝docker
yum install -y docker-ce
啟動docker
systemctl start docker
驗證是否啟動成功
docker version
設定docker開機自啟
systemctl enable docker
驗證開機自啟是否設定成功
systemctl is-enabled docker
配置映象加速
vim /etc/docker/daemon.json #新增以下內容： { "registry-mirrors": [ "https://mirror.ccs.tencentyun.com" ] }
重啟docker
systemctl restart docker
二、透過rancher指令碼一鍵快速安裝docker
curl https://releases.rancher.com/install-docker/19.03.sh | sh curl https://releases.rancher.com/install-docker/20.10.sh | sh