From 9a7714cfead5747fa8d65da0fffe146c4a58def3 Mon Sep 17 00:00:00 2001
From: Sanjay Tiwari <sanjay.180505@gmail.com>
Date: Fri, 4 Nov 2022 11:16:00 -0400
Subject: [PATCH] Add HPA and PDB

---
 charts/metrics-agent/templates/hpa.yaml | 14 ++++++++++++++
 charts/metrics-agent/templates/pdb.yaml | 11 +++++++++++
 charts/metrics-agent/values.yaml        | 10 ++++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 charts/metrics-agent/templates/hpa.yaml
 create mode 100644 charts/metrics-agent/templates/pdb.yaml

diff --git a/charts/metrics-agent/templates/hpa.yaml b/charts/metrics-agent/templates/hpa.yaml
new file mode 100644
index 00000000..222f68e1
--- /dev/null
+++ b/charts/metrics-agent/templates/hpa.yaml
@@ -0,0 +1,14 @@
+{{- if .Values.hpa.enabled }}
+apiVersion: autoscaling/v1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "metrics-agent.fullname" . }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "metrics-agent.fullname" . }}
+  minReplicas: {{ .Values.hpa.minReplicas }}
+  maxReplicas: {{ .Values.hpa.maxReplicas }}
+  targetCPUUtilizationPercentage: {{ .Values.hpa.targetCPUUtilizationPercentage }}
+{{- end }}
\ No newline at end of file
diff --git a/charts/metrics-agent/templates/pdb.yaml b/charts/metrics-agent/templates/pdb.yaml
new file mode 100644
index 00000000..6d81ac89
--- /dev/null
+++ b/charts/metrics-agent/templates/pdb.yaml
@@ -0,0 +1,11 @@
+{{- if .Values.pdb.enabled }}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "metrics-agent.fullname" . }}
+spec:
+  minAvailable: {{ .Values.pdb.minAvailable }}
+  selector:
+    matchLabels:
+      app: {{ include "metrics-agent.fullname" . }}
+{{- end }}
\ No newline at end of file
diff --git a/charts/metrics-agent/values.yaml b/charts/metrics-agent/values.yaml
index 32b8cf76..f843a07a 100644
--- a/charts/metrics-agent/values.yaml
+++ b/charts/metrics-agent/values.yaml
@@ -28,6 +28,16 @@ image:
   pullPolicy: Always
 
 imagePullSecrets: []
+# HorizontalPodAutoscaler 
+hpa:
+  enabled: false
+  minReplicas: 1 
+  maxReplicas: 3
+  targetCPUUtilizationPercentage: 80
+#Disruption Budget for the Application in caes of node upgrades
+pdb: 
+  enabled: false
+  minAvailable: 1 
 
 resources:
   requests: