cephadm: add parent_identity function

Add a new parent_identity function that a sub-identity type can use to
reconstruct a precise parent identity.

Signed-off-by: John Mulligan <jmulligan@redhat.com>

diff --git a/src/cephadm/cephadmlib/daemon_identity.py b/src/cephadm/cephadmlib/daemon_identity.py
index bfe1a855186dad68f456fd05493f633818ed0d72..ea8913b1cd3ae10e36c8ce08881cf304d45881dc 100644 (file)
--- a/src/cephadm/cephadmlib/daemon_identity.py
+++ b/src/cephadm/cephadmlib/daemon_identity.py
@@ -166,6 +166,12 @@ class DaemonSubIdentity(DaemonIdentity):
             'legacy_container_name not valid for DaemonSubIdentity'
         )
 
+    def parent_identity(self) -> DaemonIdentity:
+        """Return a new DaemonIdentity object based on the current values of this
+        DaemonSubIdentity.
+        """
+        return DaemonIdentity(self.fsid, self.daemon_type, self.daemon_id)
+
     @classmethod
     def from_parent(
         cls, parent: 'DaemonIdentity', subcomponent: str