Split health monitoring into discrete daemon/pkg

node-daemon/pvcnoded/Daemon.py

@@ -27,7 +27,6 @@ import pvcnoded.util.services
 import pvcnoded.util.libvirt
 import pvcnoded.util.zookeeper
 
-import pvcnoded.objects.MonitoringInstance as MonitoringInstance
 import pvcnoded.objects.DNSAggregatorInstance as DNSAggregatorInstance
 import pvcnoded.objects.MetadataAPIInstance as MetadataAPIInstance
 import pvcnoded.objects.VMInstance as VMInstance
@@ -59,7 +58,6 @@ version = "0.9.82"
 
 def entrypoint():
     keepalive_timer = None
-    monitoring_instance = None
 
     # Get our configuration
     config = pvcnoded.util.config.get_configuration()
@@ -202,7 +200,7 @@ def entrypoint():
 
     # Define a cleanup function
     def cleanup(failure=False):
-        nonlocal logger, zkhandler, keepalive_timer, d_domain, monitoring_instance
+        nonlocal logger, zkhandler, keepalive_timer, d_domain
 
         logger.out("Terminating pvcnoded and cleaning up", state="s")
 
@@ -251,13 +249,6 @@ def entrypoint():
         except Exception:
             pass
 
-        # Shut down the monitoring system
-        try:
-            logger.out("Shutting down monitoring subsystem", state="s")
-            monitoring_instance.shutdown()
-        except Exception:
-            pass
-
         # Set stop state in Zookeeper
         zkhandler.write([(("node.state.daemon", config["node_hostname"]), "stop")])
 
@@ -1009,11 +1000,6 @@ def entrypoint():
                         state="i",
                     )
 
-    # Set up the node monitoring instance and thread
-    monitoring_instance = MonitoringInstance.MonitoringInstance(
-        zkhandler, config, logger, this_node
-    )
-
     # Start keepalived thread
     keepalive_timer = pvcnoded.util.keepalive.start_keepalive_timer(
         logger, config, zkhandler, this_node