docker_api.py 文件源码

def _find_layers(img, id):
    with closing(img.extractfile('%s/json' % id)) as fd:
        f_content = fd.read()
        if hasattr(f_content, "decode"):
            f_content = f_content.decode()
        info = json.loads(f_content)

    log.debug('layer = %s', id)
    for k in ['os', 'architecture', 'author', 'created']:
        if k in info:
            log.debug('%s = %s', k, info[k])

    yield id

    if 'parent' in info:
        pid = info['parent']
        for layer in _find_layers(img, pid):
            yield layer


# --------------------------------------------------------------------------
# Public API
# --------------------------------------------------------------------------