1.前置條件

Docker開啟TCP埠

開啟docker apiserver的2375管理埠，本示例在CentOS7環境下。編輯docker.service檔案，修改ExecStart引數，新增-H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock

vim ./usr/lib/systemd/system/docker.service

[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
TimeoutSec=0
RestartSec=2
Restart=always