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8fafc5feeb
The new 2.x version of the docker python API has non-backward compatible changes. These changes are described here: https://docker-py.readthedocs.io/en/stable/change-log.html#breaking-changes We need to account for docker.Client and docker.APIClient as well as changes in the way kwargs are handled. Also, it appears the AutoVersion method is deprecated. Closes: #894 Approved by: rhatdan
121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
import docker
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import sys
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import requests
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from Atomic.backends._docker_errors import NoDockerDaemon
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def get_docker_client():
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"""
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Universal method to use docker.client()
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"""
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kwargs = {"version": "auto"}
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kwargs.update(docker.utils.kwargs_from_env(assert_hostname=False))
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try:
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client = docker.APIClient #pylint: disable=no-member
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except AttributeError:
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client = docker.Client #pylint: disable=no-member
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try:
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return client(**kwargs)
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except docker.errors.DockerException:
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raise NoDockerDaemon()
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def check_if_python2():
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if int(sys.version_info[0]) < 3:
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_input = raw_input # pylint: disable=undefined-variable,raw_input-builtin
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return _input, True
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else:
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_input = input # pylint: disable=input-builtin
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return _input, False
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class AtomicDocker():
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def __init__(self):
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self._client = None
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@property
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def _dockerclient(self):
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if not self._client:
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self._client = get_docker_client()
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return self._client
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def __dir__(self):
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return dir(self._dockerclient)
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def __repr__(self):
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return self._dockerclient.__repr__()
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def __enter__(self):
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return self
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def __exit__(self, typ, value, traceback):
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self.close()
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def __getattr__(self, name):
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return self.__getattribute__(name)
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def __getattribute__(self, name):
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# Avoid recursion for self._dockerclient
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if name == "_dockerclient" or name == "_client":
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return object.__getattribute__(self, name)
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obj = self._dockerclient
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try:
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attr = docker.Client.__getattribute__(obj, name) #pylint: disable=no-member
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except AttributeError:
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attr = docker.APIClient.__getattribute__(obj, name) #pylint: disable=no-member
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if hasattr(attr, '__call__'):
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def newfunc(*args, **kwargs):
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try:
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result = attr(*args, **kwargs)
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return iter_subs(result)
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except requests.exceptions.ConnectionError as e:
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if name == "containers" or name == "images":
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return []
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raise e
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return newfunc
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else:
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return attr
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def close(self):
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if self._client != None:
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self._client.close()
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is_python2 = check_if_python2()[1]
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# Known keys that contain sha26: preceding value
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SUB_KEYS = ['Parent', 'Id', 'Image', 'ImageID']
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ALGO = "sha256:"
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def no_shaw(value):
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return value.replace(ALGO, "")
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def iter_subs(tree, key=None):
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"""
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Takes a structure like a dict, list of dicts ... and
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recursively walks the structure to replace any value it
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finds that starts with the algo with a DockerID object.
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"""
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if isinstance(tree, set):
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tree = set([iter_subs(x) for x in tree])
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elif isinstance(tree, frozenset):
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tree = frozenset([iter_subs(x) for x in tree])
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elif isinstance(tree, str):
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if str(tree).startswith(ALGO) and key in SUB_KEYS:
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return no_shaw(tree)
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# In py2, it is unicode and not str
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elif is_python2 and isinstance(tree, unicode) and key in SUB_KEYS: #pylint: disable=undefined-variable,unicode-builtin
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if str(tree).startswith(ALGO):
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return no_shaw(tree)
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elif isinstance(tree, dict):
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for k, v in tree.items():
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tree[k] = iter_subs(v, key=k)
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elif isinstance(tree, list):
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if is_python2:
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if all(isinstance(x, unicode) for x in tree) and all(j.startswith(ALGO) for j in tree): # pylint: disable=undefined-variable,unicode-builtin
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return [no_shaw(i) for i in tree]
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else:
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if all(isinstance(x, str) for x in tree) and all(j.startswith(ALGO) for j in tree):
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return [no_shaw(i) for i in tree]
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for i in range(len(tree)):
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tree[i] = iter_subs(tree[i])
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return tree
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