Trivial patch to disable looping (for crond)

[kjj2]

This patch adds loop to the parameters section of the config file. If this is not set, or set to Off, the script will exit at the end of a balancing run. This is useful if you want to avoid having the load balancer run while (for example) backups are running.

--- plb.py      2024-05-21 04:56:39.802275066 -0500
+++ plb-loop_option.py   2024-05-21 04:52:25.979306790 -0500
@@ -32,6 +32,7 @@
 LXC_MIGRATION = cfg["parameters"]["lxc_migration"]
 MIGRATION_TIMEOUT = cfg["parameters"]["migration_timeout"]
 ONLY_ON_MASTER = cfg["parameters"].get("only_on_master", False)
+LOOP = cfg["parameters"].get("loop", False)

 """Exclusions"""
 excluded_vms = []
@@ -485,9 +574,13 @@
             sleep(60)
             pass  # TODO Aggressive algorithm
     else:
-        logger.info('The cluster is balanced. Waiting 300 seconds.')
-        iteration += 1
-        sleep(300)
+        if LOOP:
+            logger.info('The cluster is balanced. Waiting 300 seconds.')
+            iteration += 1
+            sleep(300)
+        else:
+            logger.info('Looping not enabled.  exiting.')
+            sys.exit(0)

 while True: