Add back the horizontal pod autoscaler to zitadel

charts/zitadel/templates/hpa.yaml

@@ -0,0 +1,37 @@
+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "zitadel.fullname" . }}
+  labels:
+    {{- include "zitadel.labels" . | nindent 4 }}
+    app.kubernetes.io/component: hpa
+  {{- with .Values.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "zitadel.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.autoscaling.targetCPU }}
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetCPU }}
+    {{- end }}
+    {{- if .Values.autoscaling.targetMemory }}
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetMemory }}
+    {{- end }}
+{{- end }}

charts/zitadel/values.yaml

@@ -234,4 +234,11 @@ pdb:
   annotations: {}
 
 networkPolicies:
-  enabled: true
+  enabled: true
+
+autoscaling:
+  enabled: true
+  minReplicas: 3
+  maxReplicas: 11
+  targetCPU: 80
+  targetMemory: 80