需要让docker启动时在tcp端口2375上监听api服务
vi /etc/systemd/system/docker-tcp.socket
配置一下内容
[Unit]
Description=Docker Socket for the API
[Socket]
ListenStream=2375
BindIPv6Only=both
Service=docker.service
[Install]
WantedBy=sockets.target
然后再重启docker服务
systemctl enable docker-tcp.socket
systemctl stop docker
systemctl start docker-tcp.socket
systemctl start docker
systemctl daemon-reload
进行验证
netstat -ano | grep 2375