docker的安装与删除(centos8)
安装
卸载旧版本
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
- 安装所需的软件包。yum-utils 提供了 yum-config-manager ，并且 device mapper 存储驱动程序需要 device-mapper-persistent-data 和 lvm2。
sudo yum install -y yum-utils \
device-mapper-persistent-data \
lvm2
- 设置镜像仓库
官方源
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
阿里云
sudo yum-config-manager \
--add-repo \
http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
清华大学
sudo yum-config-manager \
--add-repo \
https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/centos/docker-ce.repo
- 安装docker-ce
sudo yum install docker-ce docker-ce-cli containerd.io
- 查看docker状态
systemctl status docker
# Active:active(running)正常运行
# Active:inactive(dead)停止运行
- 启动docker
systemctl start docker
遇到问题
- 问题1
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
Error: failed to start containers: docker
为什么会有这种情况呢？？？
解决方法：
不管它，重启能解决99%的问题，剩下的就是解决不了的，So
systemctl resstart docker
查看以下状态
systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor pre>
Active: active (running) since Fri 2021-02-19 02:46:39 EST; 11s ago
Docs: https://docs.docker.com
Main PID: 2374 (dockerd)
Tasks: 12
Memory: 163.2M
CGroup: /system.slice/docker.service
└─2374 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/contai>
yes,完美解决！！！ 哈哈哈哈
- 停止dokcer
systemctl stop docker
- 设置开机启动
systemctl enable docker
删除
yum list installed |grep docker
使用yum -y remove进行删除
eg:
yum -y remove docker.x86_64
rm -rf /var/lib/docker
