From 670b67dc558f39a4e20e52b105749f3ec9588faa Mon Sep 17 00:00:00 2001
From: t3mi <t3mi@users.noreply.github.com>
Date: Mon, 5 Feb 2024 11:51:33 +0000
Subject: [PATCH] feat(chart): add vpa support

Signed-off-by: t3mi <t3mi@users.noreply.github.com>
---
 .../templates/verticalpodautoscaler.yaml      | 40 +++++++++++++++++++
 .../kubernetes/chart/reloader/values.yaml     | 33 ++++++++++++++-
 2 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100644 deployments/kubernetes/chart/reloader/templates/verticalpodautoscaler.yaml

diff --git a/deployments/kubernetes/chart/reloader/templates/verticalpodautoscaler.yaml b/deployments/kubernetes/chart/reloader/templates/verticalpodautoscaler.yaml
new file mode 100644
index 000000000..9ec2c463d
--- /dev/null
+++ b/deployments/kubernetes/chart/reloader/templates/verticalpodautoscaler.yaml
@@ -0,0 +1,40 @@
+{{- if and (.Capabilities.APIVersions.Has "autoscaling.k8s.io/v1") (.Values.reloader.verticalPodAutoscaler.enabled) }}
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: {{ template "reloader-fullname" . }}
+  namespace: {{ .Values.namespace | default .Release.Namespace }}
+  labels:
+    {{- include "reloader-labels.chart" . | nindent 4 }}
+spec:
+  {{- with .Values.reloader.verticalPodAutoscaler.recommenders }}
+  recommenders:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  resourcePolicy:
+    containerPolicies:
+    - containerName: {{ template "reloader-fullname" . }}
+      {{- with .Values.reloader.verticalPodAutoscaler.controlledResources }}
+      controlledResources:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- if .Values.reloader.verticalPodAutoscaler.controlledValues }}
+      controlledValues: {{ .Values.reloader.verticalPodAutoscaler.controlledValues }}
+      {{- end }}
+      {{- if .Values.reloader.verticalPodAutoscaler.maxAllowed }}
+      maxAllowed:
+        {{ toYaml .Values.reloader.verticalPodAutoscaler.maxAllowed | nindent 8 }}
+      {{- end }}
+      {{- if .Values.reloader.verticalPodAutoscaler.minAllowed }}
+      minAllowed:
+        {{ toYaml .Values.reloader.verticalPodAutoscaler.minAllowed | nindent 8 }}
+      {{- end }}
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ template "reloader-fullname" . }}
+  {{- with .Values.reloader.verticalPodAutoscaler.updatePolicy }}
+  updatePolicy:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}
diff --git a/deployments/kubernetes/chart/reloader/values.yaml b/deployments/kubernetes/chart/reloader/values.yaml
index 4d39b231e..d6b8c7177 100644
--- a/deployments/kubernetes/chart/reloader/values.yaml
+++ b/deployments/kubernetes/chart/reloader/values.yaml
@@ -280,7 +280,38 @@ reloader:
     #     matchLabels:
     #       app.kubernetes.io/name: prometheus
     to: []
-    
+
+  # Enable vertical pod autoscaler
+  verticalPodAutoscaler:
+    enabled: false
+
+    # Recommender responsible for generating recommendation for the object.
+    # List should be empty (then the default recommender will generate the recommendation)
+    # or contain exactly one recommender.
+    # recommenders:
+    # - name: custom-recommender-performance
+
+    # List of resources that the vertical pod autoscaler can control. Defaults to cpu and memory
+    controlledResources: []
+    # Specifies which resource values should be controlled: RequestsOnly or RequestsAndLimits.
+    # controlledValues: RequestsAndLimits
+
+    # Define the max allowed resources for the pod
+    maxAllowed: {}
+    # cpu: 200m
+    # memory: 100Mi
+    # Define the min allowed resources for the pod
+    minAllowed: {}
+    # cpu: 200m
+    # memory: 100Mi
+
+    updatePolicy:
+      # Specifies minimal number of replicas which need to be alive for VPA Updater to attempt pod eviction
+      # minReplicas: 1
+      # Specifies whether recommended updates are applied when a Pod is started and whether recommended updates
+      # are applied during the life of a Pod. Possible values are "Off", "Initial", "Recreate", and "Auto".
+      updateMode: Auto
+
   volumeMounts: []
 
   volumes: []