def __init__(self, filename=None, data=None, kubeconfig_path=None):
"""
Creates a new instance of BytesOrFile.
:Parameters:
- `filename`: A full path to a file
- `data`: base64 encoded bytes
"""
self._path = None
self._bytes = None
if filename is not None and data is not None:
raise TypeError(
"filename or data kwarg must be specified, not both")
elif filename is not None:
path = Path(filename)
# If relative path is given, should be made absolute with respect to the directory of the kube config
# https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/#file-references
if not path.is_absolute():
if kubeconfig_path:
path = kubeconfig_path.parent.joinpath(path)
else:
raise exceptions.PyKubeError(
"{} passed as relative path, but cannot determine location of kube config"
.format(filename))
if not path.is_file():
raise exceptions.PyKubeError(
"'{}' file does not exist".format(filename))
self._path = path
elif data is not None:
self._bytes = base64.b64decode(data)
else:
raise TypeError("filename or data kwarg must be specified")
def user(self):
"""
Returns the current user by exposing as a read-only property.
"""
if self.current_context is None:
raise exceptions.PyKubeError("current context not set; call set_current_context")
return self.users.get(self.contexts[self.current_context].get("user", ""), {})
def cluster(self):
"""
Returns the current selected cluster by exposing as a
read-only property.
"""
if self.current_context is None:
raise exceptions.PyKubeError("current context not set; call set_current_context")
return self.clusters[self.contexts[self.current_context]["cluster"]]
def from_file(cls, filename):
"""
Creates an instance of the KubeConfig class from a kubeconfig file.
:Parameters:
- `filename`: The full path to the configuration file
"""
filename = os.path.expanduser(filename)
if not os.path.isfile(filename):
raise exceptions.PyKubeError("Configuration file {} not found".format(filename))
with open(filename) as f:
doc = yaml.safe_load(f.read())
self = cls(doc)
self.filename = filename
return self
def from_file(cls, filename=None, **kwargs):
"""
Creates an instance of the KubeConfig class from a kubeconfig file.
:param filename: The full path to the configuration file. Defaults to ~/.kube/config
"""
if not filename:
filename = os.getenv('KUBECONFIG', '~/.kube/config')
filename = os.path.expanduser(filename)
if not os.path.isfile(filename):
raise exceptions.PyKubeError("Configuration file {} not found".format(filename))
with open(filename) as f:
doc = yaml.safe_load(f.read())
self = cls(doc, **kwargs)
self.filename = filename
return self
def __init__(self, filename=None, data=None):
"""
Creates a new instance of BytesOrFile.
:Parameters:
- `filename`: A full path to a file
- `data`: base64 encoded bytes
"""
self._filename = None
self._bytes = None
if filename is not None and data is not None:
raise TypeError("filename or data kwarg must be specified, not both")
elif filename is not None:
if not os.path.isfile(filename):
raise exceptions.PyKubeError("'{}' file does not exist".format(filename))
self._filename = filename
elif data is not None:
self._bytes = base64.b64decode(data)
else:
raise TypeError("filename or data kwarg must be specified")
def current_context(self):
if self._current_context is None:
raise exceptions.PyKubeError(
"current context not set; call set_current_context")
return self._current_context
