centos - Run docker inside a docker container? -

centos - Run docker inside a docker container? -

i using docker container build , deploy software collection of ec2's. in deployment script build software , bundle in docker image. image pushed private registry, pulled production ec2's , run. need run docker within docker container.

the problem can't start docker on container. if try

service docker start

i

bash: service: command not found

and if seek

docker -d

i

2014/10/07 15:54:35 docker daemon: 0.11.1-dev 02d20af/0.11.1; execdriver: native; graphdriver: [e2feb6f9] +job serveapi(unix:///var/run/docker.sock) [e2feb6f9] +job initserver() [e2feb6f9.initserver()] creating server 2014/10/07 15:54:35 listening http on unix (/var/run/docker.sock) [error] attach_loopback.go:42 there no more loopback device available. loopback mounting failed [e2feb6f9] -job initserver() = err (1) 2014/10/07 15:54:35 loopback mounting failed

the service command doesn't exist on docker container can't start docker. i'm not sure should doing start docker i'm bit stuck here, help appreciated.

a bit more information

host machine running fedora 20 (will running amazon linux on ec2)

docker container running centos 7.0

host running docker version 1.2.0, build fa7b24f/1.2.0

container running docker-0.11.1-22.el7.centos.x86_64

how not running 'docker within docker' , run docker on host, within docker container? mount docker.sock , docker binary:

docker run -v /var/run/docker.sock:/run/docker.sock -v $(which docker):/bin/docker [your image]

https://github.com/sameersbn/docker-gitlab uses approach spin docker containers, take @ image.

you can take at: https://registry.hub.docker.com/u/mattgruter/doubledocker/

centos docker fedora