下载docker
docker的下载地址
download.docker.com/linux/stati…
wget download.docker.com/linux/stati…
解压docker进行安装
tar -zxvf docker-20.10.9.tgz
将docker中的内容移动到/usr/bin/
mv /docker/* /usr/bin/
创建docker.service
vim /etc/systemd/system/docker.service
[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 -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
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
运行docker并设置开机启动
# 重新加载服务配置文件
systemctl daemon-reload
# 启动docker
systemctl start docker
# 设置开机启动
systemctl enable docker
查看docker是否启动成功
1.使用 systemctl status docker
2. 查看 docker version 是否成输出
修改docker镜像
vim /etc/docker/daemon.json
添加如下内容：
{ "registry-mirrors": [ "https://xthau744.mirror.aliyuncs.com" # 使用阿里云的镜像加速 ]}
重启docker
systemctl daemon-reload
systemctl restart docker
查看是否修改成功
docker info
