Use docker-in-docker for CI

# GitLab CI in conjunction with GitLab Runner can use Docker Engine to test and build any application.

# Docker, when used with GitLab CI, runs each job in a separate and isolated container using the predefined image that is set up in .gitlab-ci.yml.

# In this case we use the latest python docker image to build and test this project.

image: registry.gitlab.com/ska-telescope/ska-docker/ska-python:latest

image: registry.gitlab.com/ska-telescope/ska-docker/tango-builder:latest

services:

- docker:dind

# cache is used to specify a list of files and directories which should be cached between jobs. You can only use paths that are within the project workspace.

# If cache is defined outside the scope of jobs, it means it is set globally and all jobs will use that definition

# In this case we have only the test job which produce an artifacts (it must be placed into a directory called "public")

# It is also specified that only the master branch will be subject of this job.

test:

  # tags:

    # - docker-machine

  script:

  - make build

  - make test