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How to use get_image_entrypoint method in localstack

Best Python code snippet using localstack_python

build-image-incr.py

Source:build-image-incr.py

...160    subprocess.run(["docker", "rm", "-f", id], stdout=subprocess.DEVNULL)161def count_image_layers(image: str) -> int:162    return int(scos(["docker", "inspect", image,163                     "--format", "{{len .RootFS.Layers}}"]))164def get_image_entrypoint(image: str) -> str:165    return json.dumps(json.loads(scos(["docker", "image", "inspect", image]))[166                      0]["Config"]["Entrypoint"])167def image_exists_locally(image: str) -> bool:168    output = scos(["docker", "image", "ls", "-q", image])169    return output != ""170def get_image_id(image: str) -> str:171    return scos(["docker", "inspect", "-f", "{{.Id}}", image])172def get_parent(image: str) -> str:173    """174    Returns the id of the parent of 'image'.  If 'image' does not have a175    parent the result will be a blank string.176    """177    return scos(["docker", "inspect", "-f", "{{.Parent}}", image])178def is_descendent_of(image1, image2):179    image2_id = get_image_id(image2)180    image = image1181    while True:182        parent = get_parent(image)183        if not parent:184            return False185        if parent == image2_id:186            return True187        image = parent188################################189def main():190    parser = argparse.ArgumentParser(191        description='Build a container image',192        formatter_class=argparse.ArgumentDefaultsHelpFormatter)193    parser.add_argument(194        'default_base_image',195        help='The base image to use if the one specified by --layer is not suitable')196    parser.add_argument('rsync_source',197                        help='The host directory to use as the rsync source')198    parser.add_argument(199        'rsync_dest',200        help='The container directory to use as the rsync destination')201    parser.add_argument('output_image',202                        help='The name of the output image to create')203    parser.add_argument(204        '--layer',205        help='The image to try to layer on top of.  This image must be one generated by this script')206    parser.add_argument(207        '--rsync-transfer-pct-max',208        help='The maximum rsync transfer percentage to accept when determining if the image specified by --layer is suitable',209        type=float,210        default=25)211    # Max layer count of 125 for overlayfs measured on Linux 4.19.0-14-amd64212    parser.add_argument(213        '--max-layers',214        help='The maximum number of layers that LAYER is allowed to have. If exceeded, the default base image will be used',215        type=int,216        default=125)217    parser.add_argument('--exclude',218                        metavar='PATTERN',219                        action='append',220                        help="Exclude files matching PATTERN")221    parser.add_argument('--include',222                        metavar='PATTERN',223                        action='append',224                        help="don't exclude files matching PATTERN")225    args = parser.parse_args()226    app = App(args)227    base_image = app.select_base_image()228    print("Using {} as the base image".format(base_image))229    # Save the original entrypoint of the base image since we override230    # it in the 'docker run' in run_build_container() and 'docker commit' saves that as231    # the entrypoint (if we don't do anything about it, but we do).232    original_entrypoint = get_image_entrypoint(base_image)233    stats = app.estimate_rsync(base_image)234    rsync_args = []235    if stats["regular_files_transferred"] + stats["files_deleted"] <= 100:236        rsync_args.append("-v")237    print("\n** rsync {} to container:{} **".format(app.rsync_source, app.rsync_dest))238    builder_id = app.run_rsync(base_image, rsync_args)239    try:240        print("\nCommit {}".format(args.output_image))241        subprocess.run(["docker", "commit",242                        "-c", "ENTRYPOINT {}".format(original_entrypoint),243                        builder_id, args.output_image],244                       check=True)245        print("{} has {} layers".format(args.output_image,246                                        count_image_layers(args.output_image)))...

dockerutil.py

Source:dockerutil.py

...78    try:79        return info['Config']['Cmd']80    except KeyError as ke:81        raise DockerError('Failed to inspect image: JSON result missing key {}'.format(ke))82def get_image_entrypoint(image):83    '''Gets the image entrypoint'''84    info = docker_inspect_or_pull(image)85    try:86        return info['Config']['Entrypoint']87    except KeyError as ke:88        raise DockerError('Failed to inspect image: JSON result missing key {}'.format(ke))89def make_vol_opt(hostdir, contdir, options=None):90    '''Generate a docker volume option'''91    vol = '--volume={}:{}'.format(hostdir, contdir)92    if options != None:93        if isinstance(options, str):94            options = (options,)95        vol += ':' + ','.join(options)96    return vol

test_dockerutil.py

Source:test_dockerutil.py

...65    # Now try to get the image's Command66    result = uut.get_image_command(image)67    # Should return a non-empty string68    assert result69def test_get_image_entrypoint():70    '''get_image_entrypoint works'''71    result = uut.get_image_entrypoint('scuba/entrypoint-test')72    assert result == ['/entrypoint.sh']73def test_get_image_entrypoint__none():74    '''get_image_entrypoint works for image with no entrypoint'''75    result = uut.get_image_entrypoint(DOCKER_IMAGE)76    assert result is None77def test_make_vol_opt_no_opts():78    assert uut.make_vol_opt('/hostdir', '/contdir') == '--volume=/hostdir:/contdir'79def test_make_vol_opt_one_opt():80    assert uut.make_vol_opt('/hostdir', '/contdir', 'ro') == '--volume=/hostdir:/contdir:ro'81def test_make_vol_opt_multi_opts():...

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