docker服务和配置文件

1 、dockerd & 启动docker 后如何停止。
先找到dockerd 运行的pid
cat /etc/run/docker.pid
比如是pid是 123
kill -9 pid
删除文件
rm /etc/run/docker.pid
2、设置开机自动启动

配置service
vi /usr/lib/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
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s

[Install]
WantedBy=multi-user.target

systemctl daemon-reload
systemctl start docker.service
systemctl enable docker.service #自动启动
输出如下
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service

3、docker配置文件
vi /etc/docker/docker.jason

{
"registry-mirrors": ["https://registry.docker-cn.com"]
}

4、docker，build，ship，run