[FEAT] adding vpa support (#308)

Signed-off-by: Nicolas Takashi <[email protected]>

Signed-off-by: Nicolas Takashi <[email protected]>

charts/fluent-bit/Chart.yaml

@@ -5,7 +5,7 @@ keywords:
   - logging
   - fluent-bit
   - fluentd
-version: 0.21.7
+version: 0.22.0
 appVersion: 2.0.8
 icon: https://raw.githubusercontent.com/cncf/artwork/master/projects/fluentd/fluentbit/icon/fluentbit-icon-color.svg
 home: https://fluentbit.io/
@@ -22,5 +22,5 @@ maintainers:
     email: [email protected]
 annotations:
   artifacthub.io/changes: |
-    - kind: changed
-      description: "Update fluent-bit image to 2.0.8"
+    - kind: added
+      description: "Added support for using the Vertical Pod Autoscaler (VPA) to recommend or modify pod resources."

charts/fluent-bit/templates/vpa.yaml

@@ -0,0 +1,38 @@
+{{- if and (.Capabilities.APIVersions.Has "autoscaling.k8s.io/v1/VerticalPodAutoscaler") .Values.autoscaling.vpa.enabled }}
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: {{ include "fluent-bit.fullname" . }}
+  labels:
+    {{- include "fluent-bit.labels" . | nindent 4 }}
+  {{- with .Values.autoscaling.vpa.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  resourcePolicy:
+    containerPolicies:
+    - containerName: {{ .Chart.Name }}
+      {{- with .Values.autoscaling.vpa.controlledResources }}
+      controlledResources: 
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.autoscaling.vpa.maxAllowed }}
+      maxAllowed:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.autoscaling.vpa.minAllowed }}
+      minAllowed:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+  targetRef:
+    apiVersion: apps/v1
+    kind: {{ .Values.kind }}
+    name: {{ include "fluent-bit.fullname" . }}
+  {{- if .Values.autoscaling.vpa.updatePolicy }}
+  updatePolicy:
+    {{- with .Values.autoscaling.vpa.updatePolicy.updateMode }}
+    updateMode: {{ . }}
+    {{- end }}
+  {{- end }}
+{{- end }}

charts/fluent-bit/values.yaml

@@ -186,6 +186,28 @@ ingress:
 
 ## only available if kind is Deployment
 autoscaling:
+  vpa:
+    enabled: false
+
+    annotations: {}
+
+    # List of resources that the vertical pod autoscaler can control. Defaults to cpu and memory
+    controlledResources: []
+
+    # 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 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
+
   enabled: false
   minReplicas: 1
   maxReplicas: 3