docker|centos7安装docker和卸载docker centos

为什么要安装docker

docker
安装

curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo

2. 安装依赖(centos7 不用这一步， centos8需要)

yum install https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm

3. 安装docker-ce

yum install docker-ce

4. 启动docker

systemctl start docker

卸载

【docker|centos7安装docker和卸载docker】yum list installed | grep docker
输出：
docker-ce.x86_64 ……
docker-ce-cli.x86_64

2. 删除安装的软件包

yum -y remove docker-ce.x86_64
yum -y remove docker-ce-cli.x86_64

3. 删除镜像/容器等

rm -rf /var/lib/docker/

4. 输入docker或docker –version验证是否卸载

docker --version
打印出：
-bash: /usr/bin/docker: No such file or directory

docker|centos7安装docker和卸载docker