26658d920b
Add support for building docker images with an explicit configuration for specifying the docker context and Dockerfile. This is required for projects that build from 3rd party source that maintains a Dockerfile outside of the project repo and builds from source that is cloned by the repo tool into the project path. New Configuration Parameters: DOCKER_CONTEXT=<relative-path-to-source> DOCKER_FILE=<relative-path-to-docker-file> NOTE: Paths are relative to the image build file. Story: 2006537 Task: 40286 Change-Id: I6520fd31218aaf849f4d1e803bb1e0bfb614b29f Signed-off-by: Matt Peters <matt.peters@windriver.com>