def load_image(self):
"""Load metadata from an extracted docker image. This assumes the
image has already been downloaded and extracted into the working
directory"""
try:
self._manifest = self.get_image_manifest()
self.__repotags = self.get_image_repotags(self._manifest)
self._config = self.get_image_config(self._manifest)
self.__history = self.get_image_history(self._config)
layer_paths = self.get_image_layers(self._manifest)
layer_diffs = self.get_diff_ids(self._config)
checksum_type = self.get_diff_checksum_type(self._config)
layer_count = 1
while layer_diffs and layer_paths:
layer = ImageLayer(layer_diffs.pop(0), layer_paths.pop(0))
layer.set_checksum(checksum_type, layer.diff_id)
layer.gen_fs_hash()
layer.layer_index = layer_count
layer_count = layer_count + 1
self._layers.append(layer)
self.set_layer_created_by()
except NameError as e:
raise NameError(e)
except subprocess.CalledProcessError as e:
raise subprocess.CalledProcessError(e.returncode,
cmd=e.cmd,
output=e.output,
stderr=e.stderr)
except IOError as e:
raise IOError(e)
def load_image(self):
'''Load image metadata using docker commands'''
try:
container.extract_image_metadata(self.repotag)
self._manifest = self.get_image_manifest()
self.__repotags = self.get_image_repotags(self._manifest)
self._config = self.get_image_config(self._manifest)
self.__history = self.get_image_history(self._config)
layer_paths = self.get_image_layers(self._manifest)
layer_diffs = self.get_diff_ids(self._config)
checksum_type = self.get_diff_checksum_type(self._config)
layer_count = 1
while layer_diffs and layer_paths:
layer = ImageLayer(layer_diffs.pop(0), layer_paths.pop(0))
layer.set_checksum(checksum_type, layer.diff_id)
layer.gen_fs_hash()
layer.layer_index = layer_count
layer_count = layer_count + 1
self._layers.append(layer)
self.set_layer_created_by()
except NameError as e:
raise NameError(e)
except subprocess.CalledProcessError as e:
raise subprocess.CalledProcessError(
e.returncode, cmd=e.cmd, output=e.output, stderr=e.stderr)
except IOError as e:
raise IOError(e)
def load_image(self, load_until_layer=0):
"""Load metadata from an extracted docker image. This assumes the
image has already been downloaded and extracted into the working
directory"""
if load_until_layer > 0:
self._load_until_layer = load_until_layer
# else defaults to 0 - handles negative load_until_layer
try:
self._manifest = self.get_image_manifest()
self.__repotags = self.get_image_repotags(self._manifest)
self._config = self.get_image_config(self._manifest)
self.__history = self.get_image_history(self._config)
layer_paths = self.get_image_layers(self._manifest)
layer_diffs = self.get_diff_ids(self._config)
checksum_type = self.get_diff_checksum_type(self._config)
layer_count = 1
while layer_diffs and layer_paths:
layer = ImageLayer(layer_diffs.pop(0), layer_paths.pop(0))
# Only load metadata for the layers we need to report on according to the --layers command line option
# If --layers option is not present, load all the layers
if self.load_until_layer >= layer_count or self.load_until_layer == 0:
layer.set_checksum(checksum_type, layer.diff_id)
layer.gen_fs_hash()
layer.layer_index = layer_count
self._layers.append(layer)
layer_count = layer_count + 1
self._total_layers = layer_count - 1
if self.load_until_layer > self.total_layers:
# if user asked to analyze more layers than image has
# turn off the load_until_layer feature
self._load_until_layer = 0
self.set_layer_created_by()
except NameError as e:
raise NameError(e)
except subprocess.CalledProcessError as e:
raise subprocess.CalledProcessError(e.returncode,
cmd=e.cmd,
output=e.output,
stderr=e.stderr)
except IOError as e:
raise IOError(e)