cephadm: fix an error running iscsi services

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

Author: phlogistonjohn

src/cephadm/cephadmlib/daemon_identity.py

@@ -88,6 +88,14 @@ def container_name(self) -> str:
         name = f'ceph-{self.fsid}-{self.daemon_type}-{self.daemon_id}-{self.subcomponent}'
         return name.replace('.', '-')
 
+    @property
+    def unit_name(self) -> str:
+        # NB: This is a minor hack because a subcomponent may be running as part
+        # of the same unit as the primary. However, to fix a bug with iscsi
+        # this is a quick and dirty workaround for distinguishing the two types
+        # when generating --cidfile and --conmon-pidfile values.
+        return f'ceph-{self.fsid}@{self.daemon_type}.{self.daemon_id}.{self.subcomponent}'
+
     @property
     def legacy_container_name(self) -> str:
         raise ValueError(