fix auto acknowledge apt

Other/auto-acknowledge-apt.sh

@@ -47,6 +47,11 @@ while true; do
   if [ "$response" == "200" ] || [ "$response" == "409" ]; then
     # 409 is okay because that means it's already been acknowledged.
     echo "All pending alerts have been acknowledged."
+  elif [ "$response" == "000" ]; then
+    echo "ERROR: failed to reach Icinga2 server. Sleeping 60s..."
+    sleep 60
+  elif [ "$response" == "404" ]; then
+    echo "Icinga reported no services to acknowledge."
   else
     echo "Failed to acknowledge the alerts. Status code: $response"
     if $EXIT_ON_FAILURE; then

services/auto-acknowledge-apt.service

@@ -1,5 +1,7 @@
 [Unit]
 Description=Auto Acknowledge all Icinga2 apt alerts
+Wants=icinga2.service icinga-director.service
+Requires=icinga2.service icinga-director.service
 
 [Service]
 User=flask