BuildContextTar is a wrapper function tht builds a tar ball with Dockerfile and contents of bundle and this can be passed to image builder to ensure support bundle kit image is layered with actual support bundle contents to allow for subsequent processing by simulator.

GetClient leverages dockerCli to handle interaction with the docker client.

NewClient initialises a new client for interacting with dockerd.

ReadTar is a helper utility to read contents of in memory tar file and is mostly used for debugging and testing.