Run Jenkins JNLP slave service in a container with docker/docker-compose. This docker file is based on standard jenkins (jnlp slave)
To run docker in docker (sibling strategy) start container with the host docker.sock mounted
docker run [options] -v /var/run/docker.sock:/var/run/docker.sock jnlp-docker -url http://jenkins-server:port <secret> <agent name>