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Try to recreate cached file if tmp file is not exist #2441

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Try to recreate cached file if tmp file is not exist #2441

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30 changes: 18 additions & 12 deletions kubernetes/base/config/kube_config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -60,13 +60,13 @@ def _cleanup_temp_files():
_temp_files = {}


def _create_temp_file_with_content(content, temp_file_path=None):
def _create_temp_file_with_content(content, temp_file_path=None, force_recreate=False):
if len(_temp_files) == 0:
atexit.register(_cleanup_temp_files)
# Because we may change context several times, try to remember files we
# created and reuse them at a small memory cost.
content_key = str(content)
if content_key in _temp_files:
if not force_recreate and content_key in _temp_files:
return _temp_files[content_key]
if temp_file_path and not os.path.isdir(temp_file_path):
os.makedirs(name=temp_file_path)
Expand Down Expand Up @@ -115,16 +115,10 @@ def as_file(self):
decoded obj[%data_key_name] content otherwise obj[%file_key_name]."""
use_data_if_no_file = not self._file and self._data
if use_data_if_no_file:
if self._base64_file_content:
if isinstance(self._data, str):
content = self._data.encode()
else:
content = self._data
self._file = _create_temp_file_with_content(
base64.standard_b64decode(content), self._temp_file_path)
else:
self._file = _create_temp_file_with_content(
self._data, self._temp_file_path)
self._write_file()

if self._file and not os.path.isfile(self._file):
self._write_file(force_rewrite=True)
if self._file and not os.path.isfile(self._file):
raise ConfigException("File does not exist: %s" % self._file)
return self._file
Expand All @@ -142,6 +136,18 @@ def as_data(self):
self._data = f.read()
return self._data

def _write_file(self, force_rewrite=False):
if self._base64_file_content:
if isinstance(self._data, str):
content = self._data.encode()
else:
content = self._data
self._file = _create_temp_file_with_content(
base64.standard_b64decode(content), self._temp_file_path, force_recreate=force_rewrite)
else:
self._file = _create_temp_file_with_content(
self._data, self._temp_file_path, force_recreate=force_rewrite)


class CommandTokenSource(object):
def __init__(self, cmd, args, tokenKey, expiryKey):
Expand Down