Run Docker Machine inside of a Docker container
Leverages Docker-in-Docker, and as such, works the same way.
There is only one requirement: your Docker version should support the
--privileged flag.
Build the image:
docker build -t machine .
Run Machine on Docker-in-Docker and get a shell where you can play, and docker daemon logs to stdout:
docker run --privileged -t -i machine
Run Machine on Docker-in-Docker and get a shell where you can play, but docker daemon logs
into /var/log/docker.log:
docker run --privileged -t -i -e LOG=file machine
Run Machine on Docker-in-Docker and expose the inside Docker to the outside world:
docker run --privileged -d -p 4444 -e PORT=4444 machine
Note: when started with the PORT environment variable, the image will just
the Docker daemon and expose it over said port. When started without the
PORT environment variable, the image will run the Docker daemon in the
background and execute a shell for you to play.
You can use the DOCKER_DAEMON_ARGS environment variable to configure the
docker daemon with any extra options:
docker run --privileged -d -e DOCKER_DAEMON_ARGS="-D" machine