Add Helm chart for nexus-app with HPA and PDB

helm/nexus-app/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v2
+name: nexus-app
+description: Nexus platform backend API
+version: 1.3.0
+appVersion: "2.1.0"

helm/nexus-app/values.yaml

@@ -0,0 +1,32 @@
+replicaCount: 3
+
+image:
+  repository: registry.nexus.local/nexus-app
+  tag: "2.1.0"
+  pullPolicy: IfNotPresent
+
+service:
+  type: ClusterIP
+  port: 8080
+
+ingress:
+  enabled: true
+  className: nginx
+  host: api.nexus.local
+
+resources:
+  requests:
+    cpu: 250m
+    memory: 256Mi
+  limits:
+    cpu: 1000m
+    memory: 512Mi
+
+autoscaling:
+  enabled: true
+  minReplicas: 3
+  maxReplicas: 10
+  targetCPUUtilizationPercentage: 70
+
+podDisruptionBudget:
+  minAvailable: 2