meterian/docker-squash repository overview

$ DOCKER_BIN="$(which docker)"
$ docker run \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v "${DOCKER_BIN}":"${DOCKER_BIN}" \
  meterian/docker-squash -h
usage: cli.py [-h] [-v] [--version] [-d] [-f FROM_LAYER] [-t TAG]
              [--tmp-dir TMP_DIR] [--output-path OUTPUT_PATH]
              image

Docker layer squashing tool

positional arguments:
  image                 Image to be squashed

optional arguments:
  -h, --help            show this help message and exit
  -v, --verbose         Verbose output
  --version             Show version and exit
  -d, --development     Does not clean up after failure for easier debugging
  -f FROM_LAYER, --from-layer FROM_LAYER
                        ID of the layer or image ID or image name. If not
                        specified will squash all layers in the image
  -t TAG, --tag TAG     Specify the tag to be used for the new image. By
                        default it'll be set to 'image' argument
  --tmp-dir TMP_DIR     Temporary directory to be created and used
  --output-path OUTPUT_PATH
                        Path where the image should be stored after squashing.
                        If not provided, image will be loaded into Docker
                        daemon