integrating HPA for saleor api

charts/saleor/Chart.yaml

@@ -14,7 +14,7 @@ type: application
 
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 0.1.12
+version: 0.1.13
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application.

charts/saleor/templates/saleor_deployment.yaml

@@ -5,7 +5,7 @@ metadata:
   labels:
     {{- include "saleor-helm.labels" . | nindent 4 }}
 spec:
-  replicas: {{ .Values.replicaCount }}
+  replicas: {{ .Values.saleor.minReplicas }}
   selector:
     matchLabels:
       {{- include "saleor-helm.selectorLabels" . | nindent 6 }}

charts/saleor/templates/saleor_hpa.yaml

@@ -0,0 +1,23 @@
+{{- if .Values.saleor.enableHpa -}}
+apiVersion: autoscaling/v2beta2
+kind: HorizontalPodAutoscaler
+metadata:
+  annotations:
+    field.cattle.io/displayName: saleor-api-autoscaler
+  labels:
+  name: saleor-api-autoscaler
+spec:
+  maxReplicas: {{ .Values.saleor.maxReplicas }}
+  metrics:
+  - resource:
+      name: cpu
+      target:
+        averageUtilization: 80
+        type: Utilization
+    type: Resource
+  minReplicas: {{ .Values.saleor.minReplicas }}
+  scaleTargetRef:
+    apiVersion: apps/v1beta2
+    kind: Deployment
+    name: saleor-api
+{{- end }}    

charts/saleor/values.yaml

@@ -2,8 +2,6 @@
 # This is a YAML-formatted file.
 # Declare variables to be passed into your templates.
 
-replicaCount: 1
-
 image:
   repository: registry.gitlab.com/trieb.work/saleor
   pullPolicy: IfNotPresent
@@ -54,6 +52,9 @@ ingress:
   #      - chart-example.local
 
 saleor:
+  enableHpa: true
+  maxReplicas: 3
+  minReplicas: 2
   resources:
     requests:
       cpu: 300m