A docker image to be used with Bibbucket pipelines for building Gradle based
project builds and pushing them to an AWS ECR repo.
The image is hosted on bitbucket and, at the moment, is built through a
DockerHub "automated build", which pulls the code from bitbucket and does
a docker build/push to the repo. I might change this to be based on a
BitBucket pipeline instead, because I don't like the way DockerHub does
versioning. I think I'd rather drive teh DockerHub image from the dockerPush
task which is based of the "version.x.x.x" git tag the way I like it.