[SOLVED] Enabling Docker Remote API on Ubuntu 14.04 with daemon startup

Enabling Docker Remote API on Ubuntu 14.04 with daemon startup

I´m struggeling with the activation of Remote API for docker.

Already tried to set configuration by the following command:

DOCKER_OPTS="-H tcp://127.0.0.1:2375"

in following files:

/etc/default/docker

and

/etc/init.d/docker.conf

Then restarted daemon by pkill and started again by docker daemon & but still not working for me. What did I miss?

root@ubuntu:~# docker info
 Containers: 7
 Running: 1
 Paused: 0
 Stopped: 6
 Images: 24
 Server Version: 1.11.2
 Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 139
 Dirperm1 Supported: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Plugins: 
 Volume: local
 Network: bridge null host
 Kernel Version: 4.2.0-36-generic
 Operating System: Ubuntu 14.04.4 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 2
 Total Memory: 7.78 GiB
 Name: ubuntu
enter code here

Solution

Running docker daemon & by hand ignores all configuration files. Those files are referenced when you start Docker with the OS upstart commands, or an /etc/init.d/docker start. To bind to the port when starting by hand, you'd need to pass the argument there: docker daemon -H tcp://127.0.0.1:2375. Note that this allows anyone with access to the local network full root access on your machine.