前置要求

1.卸载旧版本docker

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

2.在能够联网的机器上下载docker组件

2.1.下载依赖组件

wget http://mirror.centos.org/altarch/7/extras/aarch64/Packages/container-selinux-2.119.2-1.911c772.el7_8.noarch.rpmwget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.2-3.3.el7.x86_64.rpmwget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-cli-19.03.9-3.el7.x86_64.rpmwget http://mirror.centos.org/centos/7/os/x86_64/Packages/libcgroup-0.41-21.el7.x86_64.rpm

2.2.装置依赖组件

将下载好的依赖组件上传到要装置docker的服务器中，如下是要装置的依赖组件。

container-selinux-2.119.2-1.911c772.el7_8.noarch.rpmcontainerd.io-1.2.2-3.3.el7.x86_64.rpmdocker-ce-cli-19.03.9-3.el7.x86_64.rpm

2.3.开始装置依赖组件

rpm -Uvh *.rpm --nodeps --force

3.下载docker安装文件

wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-19.03.9-3.el7.x86_64.rpm

4.下载docker-compose

wget https://github.com/docker/compose/releases/download/1.28.2/docker-compose-Linux-x86_64

2.开始装置Docker

rpm -ivh docker-ce-19.03.9-3.el7.x86_64.rpm

2.1启动Docker

# 启动systemctl start docker # 查看状态systemctl status docker # docker 开机启动systemctl enable docker

3.装置docker-compose

3.1.上传docker-compose-Linux-x86_64文件到服务器中

chmod +x docker-compose-Linux-x86_64 && mv docker-compose-Linux-x86_64 /usr/local/bin/docker-compose

3.2.配置profile环境变量（可选）

如果曾经配置了环境变量能够略过此步骤。

vi /etc/profile#增加如下内容export PATH=$PATH/usr/local/bin

加载配置使配置失效

source /etc/profile

3.3.测试是否胜利

docker-compose --version

4.卸载docker

4.1.查看docker安装包

yum list installed | grep docker

4.2.卸载docker

yum remove docker*

4.3.删除镜像或容器等数据

rm -rf /var/lib/docke