Add new image with docker for CustomersDot Docker-In-Docker
We want to run one of our CI jobs against the GitLab instance to verify integration between GitLab and CustomersDot.
For that we went with Docker-In-Docker approach but our build images miss the docker
package. This MR
adds a new build image which contains it.
Related issue customers-gitlab-com#3438 (closed)
Edited by Vitaly Slobodin