This will be used for evacuating instances in a node group.
---
lib/config.py | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/lib/config.py b/lib/config.py
index 8f89aaf..b5a3c68 100644
--- a/lib/config.py
+++ b/lib/config.py
@@ -1365,6 +1365,26 @@ class ConfigWriter:
sec.append(inst.name)
return (pri, sec)
+ @locking.ssynchronized(_config_lock, shared=1)
+ def GetNodeGroupInstances(self, uuid, primary_only=False):
+ """Get the instances of a node group.
+
+ @param uuid: Node group UUID
+ @param primary_only: Whether to only consider primary nodes
+ @rtype: frozenset
+ @return: List of instance names in node group
+
+ """
+ if primary_only:
+ nodes_fn = lambda inst: [inst.primary_node]
+ else:
+ nodes_fn = lambda inst: inst.all_nodes
+
+ return frozenset(inst.name
+ for inst in self._config_data.instances.values()
+ for node_name in nodes_fn(inst)
+ if self._UnlockedGetNodeInfo(node_name).group == uuid)
+
def _UnlockedGetNodeList(self):
"""Return the list of nodes which are in the configuration.
--
1.7.3.5
