The Github continuous integration tool is used.
The following Environment variables shall be set up to allow automatic deployment to Dockerhub.
DOCKER_REGISTRY # this variable shall be set to your personal Dockerhub registry (typically equals username)
DOCKER_USERNAME = %your username%
DOCKER_PASSWORD = %your password%
Note: On the main Github CI the DOCKER_REGISTRY variable is set to itisfoundation. All the built docker images are then deployed to itisfoundation/%imageName%.