diff options
Diffstat (limited to 'cloudinit/sources/helpers')
| -rw-r--r-- | cloudinit/sources/helpers/openstack.py | 75 |
1 files changed, 33 insertions, 42 deletions
diff --git a/cloudinit/sources/helpers/openstack.py b/cloudinit/sources/helpers/openstack.py index 025a2404..3c6bb6aa 100644 --- a/cloudinit/sources/helpers/openstack.py +++ b/cloudinit/sources/helpers/openstack.py @@ -162,21 +162,25 @@ class BaseReader(object): pass def _find_working_version(self, version): + try: + versions_available = self._fetch_available_versions(self) + except Exception as e: + LOG.warn("Unable to read openstack versions from %s due to: %s", + self.base_path, e) + versions_available = [] + search_versions = [version] + list(OS_VERSIONS) - available_versions = self._fetch_available_versions() + selected_version = OS_LATEST for potential_version in search_versions: - if not potential_version: + if potential_version not in versions_available: continue - if potential_version not in available_versions: - continue - if potential_version != version: - LOG.debug("Version '%s' not available, attempting to use" - " version '%s' instead", version, - potential_version) - return potential_version - LOG.debug("Version '%s' not available, attempting to use '%s'" - " instead", version, OS_LATEST) - return OS_LATEST + selected_version = potential_version + break + + if selected_version != version: + LOG.warn("Version '%s' not available, attempting to use" + " version '%s' instead", version, selected_version) + return selected_version def _read_content_path(self, item): path = item.get('content_path', '').lstrip("/") @@ -317,20 +321,12 @@ class ConfigDriveReader(BaseReader): return util.load_file(path) def _fetch_available_versions(self): - if self._versions is not None: - return self._versions - else: - versions_available = [] + if self._versions is None: path = self._path_join(self.base_path, 'openstack') - try: - for child in os.listdir(path): - child_path = os.path.join(path, child) - if os.path.isdir(child_path): - versions_available.append(child) - except (OSError, IOError): - pass - self._versions = tuple(versions_available) - return self._versions + found = [d for d in os.listdir(path) + if os.path.isdir(os.path.join(path))] + self._versions = tuple(found) + return self._versions def _read_ec2_metadata(self): path = self._path_join(self.base_path, @@ -420,24 +416,19 @@ class MetadataReader(BaseReader): self._versions = None def _fetch_available_versions(self): + # <baseurl>/openstack/ returns a newline separated list of versions if self._versions is not None: - return self._versions - else: - path = self._path_join(self.base_path, "openstack") - versions_available = [] - try: - versions = self._path_read(path) - except IOError as e: - LOG.warn("Unable to read openstack versions from %s due" - " to: %s", path, e) - else: - for line in versions.splitlines(): - line = line.strip() - if not line: - continue - versions_available.append(line) - self._versions = tuple(versions_available) - return self._versions + return self.os_versions + found = [] + content = self._path_read(version_path) + for line in content.splitlines(): + line = line.strip() + if not line: + continue + found.append(line) + self._versions = tuple(found) + return self._versions + def _path_read(self, path): |