feat: volsync is now a addon

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/addons/volsync/app/prometheusrule.yaml.j2

@@ -0,0 +1,23 @@
+---
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+  name: volsync
+spec:
+  groups:
+    - name: volsync.rules
+      rules:
+        - alert: VolSyncComponentAbsent
+          annotations:
+            summary: VolSync component has disappeared from Prometheus target discovery.
+          expr: absent(up{job="volsync-metrics"})
+          for: 15m
+          labels:
+            severity: critical
+        - alert: VolSyncVolumeOutOfSync
+          annotations:
+            summary: "{% raw %}{{ $labels.obj_namespace }}/{{ $labels.obj_name }} volume is out of sync.{% endraw %}"
+          expr: volsync_volume_out_of_sync == 1
+          for: 15m
+          labels:
+            severity: critical