charts: add pdb to api (#560)

* charts: add pdb to api

Author: pokgak

deployment/k8s/discovery-chart/templates/api-pdb.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.api.pdb.enabled }}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "discovery.fullname" . }}-api
+  namespace: {{ include "discovery.namespace" . }}
+spec:
+  maxUnavailable: {{ .Values.api.pdb.maxUnavailable }}
+  selector:
+    matchLabels:
+      app: {{ include "discovery.fullname" . }}-api
+{{- end }}

deployment/k8s/discovery-chart/values.example.yaml

@@ -8,6 +8,9 @@ redis:
   image: redis:7.0
 
 api:
+  pdb:
+    enabled: true
+    maxUnavailable: 1
   hpa:
     enabled: true
     minReplicas: 2

deployment/k8s/orchestrator-chart/templates/api-pdb.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.api.pdb.enabled }}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "orchestrator.fullname" . }}-api
+  namespace: {{ include "orchestrator.namespace" . }}
+spec:
+  maxUnavailable: {{ .Values.api.pdb.maxUnavailable }}
+  selector:
+    matchLabels:
+      app: {{ include "orchestrator.fullname" . }}-api
+{{- end }}

deployment/k8s/orchestrator-chart/values.example.yaml

@@ -11,6 +11,9 @@ redis:
   image: redis
 
 api:
+  pdb:
+    enabled: true
+    maxUnavailable: 1
   hpa:
     enabled: true
     minReplicas: 2