Docker in Docker
Although running Docker inside Docker is generally not recommended, there are some legitimate use cases, such as development of Docker itself.
Docker
docker run --privileged --name docker -d docker:dind
Start a daemon instance
$ docker run --privileged --name some-docker -d \
--network some-network --network-alias docker \
-e DOCKER_TLS_CERTDIR=/certs \
-v some-docker-certs-ca:/certs/ca \
-v some-docker-certs-client:/certs/client \
docker:dind
Custom daemon flags
$ docker run --privileged --name some-docker -d \
--network some-network --network-alias docker \
-e DOCKER_TLS_CERTDIR=/certs \
-v some-docker-certs-ca:/certs/ca \
-v some-docker-certs-client:/certs/client \
docker:dind --storage-driver overlay2
Where to Store Data
$ docker run --privileged --name some-docker -v /my/own/var-lib-docker:/var/lib/docker -d docker:dind
Screenshots
