diff options
Diffstat (limited to 'src/lib/Bcfg2/Server/Plugins/GroupLogic.py')
-rw-r--r-- | src/lib/Bcfg2/Server/Plugins/GroupLogic.py | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/src/lib/Bcfg2/Server/Plugins/GroupLogic.py b/src/lib/Bcfg2/Server/Plugins/GroupLogic.py index 810b273af..d74c16e8b 100644 --- a/src/lib/Bcfg2/Server/Plugins/GroupLogic.py +++ b/src/lib/Bcfg2/Server/Plugins/GroupLogic.py @@ -3,7 +3,9 @@ template to dynamically set additional groups for clients. """ import os import lxml.etree +from threading import local import Bcfg2.Server.Plugin +from Bcfg2.Server.Plugins.Metadata import MetadataGroup try: from Bcfg2.Server.Plugins.Bundler import BundleTemplateFile except ImportError: @@ -35,13 +37,40 @@ class GroupLogic(Bcfg2.Server.Plugin.Plugin, """ GroupLogic is a connector plugin that lets you use an XML Genshi template to dynamically set additional groups for clients. """ + # perform grouplogic later than other Connector plugins, so it can + # use groups set by them + sort_order = 1000 def __init__(self, core, datastore): Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore) Bcfg2.Server.Plugin.Connector.__init__(self) self.config = GroupLogicConfig(os.path.join(self.data, "groups.xml"), core.fam) + self._local = local() def get_additional_groups(self, metadata): - return [el.get("name") - for el in self.config.get_xml_value(metadata).findall("Group")] + if not hasattr(self._local, "building"): + # building is a thread-local set that tracks which + # machines GroupLogic is getting additional groups for. + # If a get_additional_groups() is called twice for a + # machine before the first call has completed, the second + # call returns an empty list. This is for infinite + # recursion protection; without this check, it'd be + # impossible to use things like metadata.query.in_group() + # in GroupLogic, since that requires building all + # metadata, which requires running + # GroupLogic.get_additional_groups() for all hosts, which + # requires building all metadata... + self._local.building = set() + if metadata.hostname in self._local.building: + return [] + self._local.building.add(metadata.hostname) + rv = [] + for el in self.config.get_xml_value(metadata).findall("Group"): + if el.get("category"): + rv.append(MetadataGroup(el.get("name"), + category=el.get("category"))) + else: + rv.append(el.get("name")) + self._local.building.discard(metadata.hostname) + return rv |