Always write value for apt_upgrades_pending and apt_upgrades_held to ensure monitoring works.

Signed-off-by: Maarten Kossen (mpkossen) <[email protected]>

Author: mpkossen

apt_info.py

@@ -59,11 +59,14 @@ def _write_pending_upgrades(registry, cache):
     }
     upgrade_list = _convert_candidates_to_upgrade_infos(candidates)
 
-    if upgrade_list:
-        g = Gauge('apt_upgrades_pending', "Apt packages pending updates by origin",
+    g = Gauge('apt_upgrades_pending', "Apt packages pending updates by origin",
                   ['origin', 'arch'], registry=registry)
+
+    if upgrade_list:
         for change in upgrade_list:
             g.labels(change.labels['origin'], change.labels['arch']).set(change.count)
+    else:
+        g.labels("", "").set(0)
 
 
 def _write_held_upgrades(registry, cache):
@@ -73,11 +76,14 @@ def _write_held_upgrades(registry, cache):
     }
     upgrade_list = _convert_candidates_to_upgrade_infos(held_candidates)
 
-    if upgrade_list:
-        g = Gauge('apt_upgrades_held', "Apt packages pending updates but held back.",
+    g = Gauge('apt_upgrades_held', "Apt packages pending updates but held back.",
                   ['origin', 'arch'], registry=registry)
+
+    if upgrade_list:
         for change in upgrade_list:
             g.labels(change.labels['origin'], change.labels['arch']).set(change.count)
+    else:
+        g.labels("", "").set(0)
 
 
 def _write_autoremove_pending(registry, cache):