Mounting docker.sock in a Docker container

README.md

There are situations you might want to start Docker containers inside a Docker container, but you need both containers to be siblings, that is, to run in the host system.

In fact it's very easy to achieve that. Just mount docker.sock, Docker binary and App Armor shared libraries and you're good to go.

mount-docker.sh

#!/bin/sh

docker run \
        -it \
        -v /var/run/docker.sock:/var/run/docker.sock \
        -v `which docker`:/usr/bin/docker \
        -v /usr/lib/x86_64-linux-gnu/libapparmor.so.1:/usr/lib/x86_64-linux-gnu/libapparmor.so.1 \
        -v /usr/lib/x86_64-linux-gnu/libapparmor.so.1.1.0:/usr/lib/x86_64-linux-gnu/libapparmor.so.1.1.0 \
        ubuntu@latest \
        bash