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which docker
查看Docker可执行文件的地址docker versino
systemctl stop docker # 停止Docker服务
yum remove docker docker-common docker-selinux docker-engine # 卸载Docker(适用于CentOS)
tar xf docker-xxxxx.tgz
cp docker/* /usr/bin/
vi /etc/systemd/system/docker.service
,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
# 给执行权限
chmod +x /etc/systemd/system/docker.service
# 重新加载配置
systemctl daemon-reload
# 设置开机启动
systemctl enable docker.service
# 进行启动
systemctl start docker
# 查看containerd状态
systemctl status containerd
# 启动containerd服务
systemctl start containerd
Docker -version
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