Docker: Enable API

Enable Docker API

1. Edit the docker.service: sudo systemctl edit docker.service
   • Add the below above the '### Lines below this comment will be discarded line':

 [Service]  
 ExecStart=   
 ExecStart=/usr/bin/dockerd

        2. Create /etc/docker/daemon.json with the below:

 {     
   "hosts": ["unix:///var/run/docker.sock", "tcp://<HostIP>:2375"]   
 }

        3.Restart docker: systemctl restart docker

Securing Docker API

        To add tls and secure the API create certs for the host, store them, and add them to the daemon.json file as the below:

 {
   "hosts": ["unix:///var/run/docker.sock", "tcp://10.1.31.100:2375"],
   "tls": true,
   "tlscacert": "/server/config/docker-certs/rootCA.pem",
   "tlscert": "/server/config/docker-certs/tndocker.fwe.com.crt",
   "tlskey": "/server/config/docker-certs/tndocker.fwe.com.key",
   "tlsverify": true
 }