feat(goharbor): Add PDB for registry

This patch adds a PDB to make sure the registry becomes HA (ignoring)
the possiblity of a missing database container.

apps/k8s01/goharbor/kustomization.yaml

@@ -3,5 +3,6 @@ kind: Kustomization
 resources:
   - ../../base/goharbor
   - certificate.yaml
+  - poddisruptionbudget.yaml
 patchesStrategicMerge:
   - goharbor-values.yaml

apps/k8s01/goharbor/poddisruptionbudget.yaml

+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: harbor-registry-pdb
+  namespace: goharbor
+spec:
+  minAvailable: 1
+  selector:
+    matchLabels:
+      app: harbor
+      component: registry