docker的安装和卸载_Docker

docker的卸载

1. 先停止docker服务

2. 删除docker的安装包

先查找docker的安装包

然后删除上面查找的安装包

最后验证下，是不是没有docker的安装包了

3. 删除docker的镜像文件（默认在/var/lib/docker目录下）

执行完以上步骤docker就卸载成功了。

docker安装

本例中安装docker的版本是19.03.09，安装方式是通过离线安装包安装。安装包下载地址

解压docker的安装文件

将解压的文件复制到/usr/bin/

在/etc/systemd/system目录下创建docker.service文件,并给该文件添加执行权限。

文件名为docker.service的内容如下：

[unit]
description=docker application container engine
documentation=https://docs.docker.com
after=network-online.target firewalld.service
wants=network-online.target
[service]
type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
execstart=/usr/bin/dockerd
execreload=/bin/kill -s hup $mainpid
# having non-zero limit*s causes performance problems due to accounting overhead
# in the kernel. we recommend using cgroups to do container-local accounting.
limitnofile=infinity
limitnproc=infinity
limitcore=infinity
# uncomment tasksmax if your systemd version supports it.
# only systemd 226 and above support this version.
#tasksmax=infinity
timeoutstartsec=0
# set delegate yes so that systemd does not reset the cgroups of docker containers
delegate=yes
# kill only the docker process, not all processes in the cgroup
killmode=process
# restart the docker process if it exits prematurely
restart=on-failure
startlimitburst=3
startlimitinterval=60s

[install]
wantedby=multi-user.target