fix: Requery a guest if that running guest reports 0 cpu usage

.changelogs/1.1.1/200_requery_zero_guest_cpu_used.yml

@@ -0,0 +1,2 @@
+fixed:
+  - Requery a guest if that running guest reports 0 cpu usage (by @glitchvern) [#200]

proxlb/models/guests.py

@@ -11,6 +11,7 @@ __license__ = "GPL-3.0"
 from typing import Dict, Any
 from utils.logger import SystemdLogger
 from models.tags import Tags
+import time
 
 logger = SystemdLogger()
 
@@ -61,6 +62,11 @@ class Guests:
             # resource metrics for rebalancing to ensure that we do not overprovisiong the node.
             for guest in proxmox_api.nodes(node).qemu.get():
                 if guest['status'] == 'running':
+                    while guest['cpu'] == 0:
+                        guest = proxmox_api.nodes(node).qemu(guest['vmid']).status.current.get()
+                        logger.debug(f"guest {guest['name']} is reporting {
+guest['cpu']} cpu usage.")
+                        time.sleep(1)
                     guests['guests'][guest['name']] = {}
                     guests['guests'][guest['name']]['name'] = guest['name']
                     guests['guests'][guest['name']]['cpu_total'] = guest['cpus']