feat(hydra): add horizontal pod autoscaling

resources/hydra/kustomization.yaml

@@ -10,6 +10,7 @@ resources:
   - ./resources/hydra-migrate-job.yaml
   - ./resources/hydra-maester
   - ./resources/hydra-janitor-cronjob.yaml
+  - ./resources/hydra-hpa.yaml
 
 secretGenerator:
   - name: hydra-secret

resources/hydra/resources/hydra-deployment.yaml

@@ -55,6 +55,9 @@ spec:
               name: hydra-public
             - containerPort: 4445
               name: hydra-admin
-          resources: {}
+          resources:
+            requests:
+              cpu: 100m
+              memory: 128Mi
       restartPolicy: Always
   

resources/hydra/resources/hydra-hpa.yaml

@@ -0,0 +1,26 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: hydra
+  labels:
+    io.kompose.service: hydra
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: hydra
+  minReplicas: 1
+  maxReplicas: 3
+  metrics:
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 80
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 80