Docker-in-Docker based on centos original image
Step 1:
$ git clone https://github.com/AixC/dind_centos.git
Step 2:Build docker image
$ sudo ./build.sh
Step 3:Run
$ sudo docker run --privileged -d dind_centos
$ git clone https://github.com/AixC/dind_centos.git
$ sudo ./build.sh
$ sudo docker run --privileged -d dind_centos