add keda

README.md

@@ -39,6 +39,10 @@ command:
   - "-c"
   - "sleep 60"
 
+environment:
+  variables:
+    PORT: "8080"
+
 ports:
   - containerPort: 8080
 ```

charts/app/Chart.yaml

@@ -3,7 +3,7 @@ name: app
 description: A Helm chart for Kubernetes Deployment
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - deployment

charts/app/templates/base.yaml

@@ -5,6 +5,7 @@
 {{ include "base.verticalPodAutoscaler" . }}
 {{ include "base.podDisruptionBudget" . }}
 {{ include "base.horizontalPodAutoscaler" . }}
+{{ include "base.keda" . }}
 {{ include "base.PriorityClass" . }}
 {{ include "base.rbac" . }}
 {{ include "base.deployment" . }}

charts/app/values.yaml

@@ -198,6 +198,54 @@ autoscaling:
   # behavior:
   #   scaleDown:
   #     stabilizationWindowSeconds: 300
+  scaleTargetRef: {}
+
+## https://keda.sh/docs/latest/reference/scaledobject-spec/
+keda:
+  enabled: false
+  # apiVersion: keda.sh/v1alpha1
+  # annotations:
+  #   scaledobject.keda.sh/transfer-hpa-ownership: "true"     # Optional. Use to transfer an existing HPA ownership to this ScaledObject
+  #   validations.keda.sh/hpa-ownership: "true"               # Optional. Use to disable HPA ownership validation on this ScaledObject
+  #   autoscaling.keda.sh/paused: "true"                      # Optional. Use to pause autoscaling of objects explicitly
+  scaleTargetRef: {}
+  # scaleTargetRef:
+  #   apiVersion:    {api-version-of-target-resource}         # Optional. Default: apps/v1
+  #   kind:          {kind-of-target-resource}                # Optional. Default: Deployment
+  #   name:          {name-of-target-resource}                # Mandatory. Must be in the same namespace as the ScaledObject
+  #   envSourceContainerName: {container-name}                # Optional. Default: .spec.template.spec.containers[0]
+  # pollingInterval:  30                                      # Optional. Default: 30 seconds
+  # cooldownPeriod:   300                                     # Optional. Default: 300 seconds
+  # initialCooldownPeriod:  0                                 # Optional. Default: 0 seconds
+  # idleReplicaCount: 0                                       # Optional. Default: ignored, must be less than minReplicaCount
+  minReplicaCount: 1
+  maxReplicaCount: 20
+  # fallback:                                                 # Optional. Section to specify fallback options
+  #   failureThreshold: 3                                     # Mandatory if fallback section is included
+  #   replicas: 6                                             # Mandatory if fallback section is included
+  # advanced:                                                 # Optional. Section to specify advanced options
+  #   restoreToOriginalReplicaCount: true/false               # Optional. Default: false
+  #   horizontalPodAutoscalerConfig:                          # Optional. Section to specify HPA related options
+  #     name: {name-of-hpa-resource}                          # Optional. Default: keda-hpa-{scaled-object-name}
+  #     behavior:                                             # Optional. Use to modify HPA's scaling behavior
+  #       scaleDown:
+  #         stabilizationWindowSeconds: 300
+  #         policies:
+  #         - type: Percent
+  #           value: 100
+  #           periodSeconds: 15
+  # triggers:
+  # # {list of triggers to activate scaling of the target resource}
+
+  # TriggerAuthentication: ## or ClusterTriggerAuthentication
+  #   - name: Name
+  #     spec:
+  #       secretTargetRef:
+  #       - parameter: GoogleApplicationCredentials
+  #         name: cloudtasks-secret        # Required. Refers to the name of the secret
+  #         key: GOOGLE_APPLICATION_CREDENTIALS_JSON       # Required.
+  #       podIdentity:
+  #         provider: gcp
 
 # ref: https://kubernetes.io/docs/tasks/run-application/configure-pdb/
 podDisruptionBudget:

charts/argo-applications/Chart.yaml

@@ -3,7 +3,7 @@ name: argo-applications
 description: A Helm chart for Kubernetes argo applications
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - argocd

charts/argo-workflows/Chart.yaml

@@ -3,7 +3,7 @@ name: argo-workflows
 description: A Helm chart for Kubernetes argocd workflows
 type: application
 
-version: 0.11.6
+version: 0.15.0
 
 keywords:
   - argocd

charts/base/Chart.yaml

@@ -3,7 +3,7 @@ name: base
 description: A Helm chart for Kubernetes with helm named templates
 type: library
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - deployment

charts/base/templates/_argoRollouts.tpl

@@ -9,7 +9,9 @@ metadata:
   labels:
     {{- include "base.labels" . | trim | nindent 4 }}
 spec:
-  {{- if .Values.autoscaling.enabled }}
+  {{- if .Values.keda.enabled }}
+  replicas: {{ .Values.keda.minReplicaCount | default 0 }}
+  {{- else if .Values.autoscaling.enabled }}
   replicas: {{ .Values.autoscaling.minReplicas }}
   {{- else }}
   replicas: {{ .Values.replicas }}

charts/base/templates/_deployment.tpl

@@ -22,7 +22,7 @@ metadata:
 spec:
   {{- if and $deploymentValues.Values.argo.rollouts.enabled ( eq $deploymentValues.Values.argo.rollouts.type "workloadRef" ) }}
   replicas: 0
-  {{- else if not $deploymentValues.Values.autoscaling.enabled }}
+  {{- else if and (not $deploymentValues.Values.autoscaling.enabled) (not $deploymentValues.Values.keda.enabled) }}
   replicas: {{ $deploymentValues.Values.replicas }}
   {{- end }}
   revisionHistoryLimit: {{ $deploymentValues.Values.revisionHistoryLimit | default 10 }}

charts/base/templates/_horizontalPodAutoscaler.tpl

@@ -11,13 +11,13 @@ metadata:
 spec:
   scaleTargetRef:
     {{- if .Values.argo.rollouts.enabled }}
-    apiVersion: {{ .Values.argo.rollouts.apiVersion }}
-    kind: {{ .Values.argo.rollouts.kind }}
+    apiVersion: {{ coalesce .Values.autoscaling.scaleTargetRef.apiVersion .Values.argo.rollouts.apiVersion }}
+    kind: {{ coalesce .Values.autoscaling.scaleTargetRef.kind .Values.argo.rollouts.kind }}
     {{- else }}
-    apiVersion: {{ .Values.apiVersion | default "apps/v1" }}
-    kind: {{ .Values.kind | default "Deployment" }}
+    apiVersion: {{ coalesce .Values.autoscaling.scaleTargetRef.apiVersion .Values.apiVersion "apps/v1" }}
+    kind: {{ coalesce .Values.autoscaling.scaleTargetRef.kind .Values.kind "Deployment" }}
     {{- end }}
-    name: {{ include "base.fullname" . }}
+    name: {{ .Values.autoscaling.scaleTargetRef.name | default (include "base.fullname" .) }}
   {{- if .Values.autoscaling.minReplicas }}
   minReplicas: {{ .Values.autoscaling.minReplicas }}
   {{- end }}

charts/base/templates/_keda.tpl

@@ -0,0 +1,89 @@
+{{- define "base.keda" -}}
+{{- if .Values.keda.enabled }}
+{{- $labels := include "base.labels" . }}
+{{- $keda := .Values.keda }}
+---
+apiVersion: {{ .Values.keda.apiVersion | default "keda.sh/v1alpha1" }}
+kind: ScaledObject
+metadata:
+  name: {{ include "base.fullname" . }}
+  labels:
+    {{- $labels | trim | nindent 4 }}
+  {{- with .Values.keda.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  scaleTargetRef:
+    {{- if .Values.argo.rollouts.enabled }}
+    apiVersion: {{ coalesce .Values.keda.scaleTargetRef.apiVersion .Values.argo.rollouts.apiVersion }}
+    kind: {{ coalesce .Values.keda.scaleTargetRef.kind .Values.argo.rollouts.kind }}
+    {{- else }}
+    apiVersion: {{ coalesce .Values.keda.scaleTargetRef.apiVersion .Values.apiVersion "apps/v1" }}
+    kind: {{ coalesce .Values.keda.scaleTargetRef.kind .Values.kind "Deployment" }}
+    {{- end }}
+    name: {{ .Values.keda.scaleTargetRef.name | default (include "base.fullname" .) }}
+    {{- if .Values.keda.scaleTargetRef.envSourceContainerName }}
+    envSourceContainerName: {{ .Values.keda.scaleTargetRef.envSourceContainerName }}
+    {{- end }}
+  pollingInterval: {{ .Values.keda.pollingInterval | default 30 }}
+  cooldownPeriod: {{ .Values.keda.cooldownPeriod | default 300 }}
+  idleReplicaCount: {{ .Values.keda.idleReplicaCount | default 0 }}
+  minReplicaCount:  {{ .Values.keda.minReplicaCount | default 0 }}
+  maxReplicaCount:  {{ .Values.keda.maxReplicaCount | default 100 }}
+  {{- with .Values.keda.fallback }}
+  fallback:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.keda.advanced }}
+  advanced:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.keda.triggers }}
+  triggers:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+
+{{- if or .Values.keda.TriggerAuthentication .Values.keda.ClusterTriggerAuthentication }}
+{{- range .Values.keda.TriggerAuthentication }}
+---
+apiVersion: {{ $keda.apiVersion | default "keda.sh/v1alpha1" }}
+kind: TriggerAuthentication
+metadata:
+  name: {{ .name }}
+  {{- with .labels }}
+  labels:
+    {{- $labels | trim | nindent 4 }}
+  {{- end }}
+  {{- with .annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- with .spec }}
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}
+{{- range .Values.keda.ClusterTriggerAuthentication }}
+---
+apiVersion: {{ $keda.apiVersion | default "keda.sh/v1alpha1" }}
+kind: ClusterTriggerAuthentication
+metadata:
+  name: {{ .name }}
+  {{- with .labels }}
+  labels:
+    {{- $labels | trim | nindent 4 }}
+  {{- end }}
+  {{- with .annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- with .spec }}
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}
+{{- end }}
+
+{{- end }}
+{{- end }}

charts/base/templates/_podDisruptionBudget.tpl

@@ -11,8 +11,10 @@ metadata:
 spec:
   {{- if .Values.podDisruptionBudget.minAvailable }}
   minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
-  {{- else if and $autoscaling.enabled $autoscaling.minReplicas }}
-  minAvailable: {{ if (lt (int $autoscaling.minReplicas) 2) }}1{{else}}{{ div $autoscaling.minReplicas 2 }}{{end}}
+  {{- else if and .Values.keda.enabled }}
+  minAvailable: {{ if (lt (int .Values.keda.minReplicaCount) 2) }}1{{else}}{{ div .Values.keda.minReplicaCount 2 }}{{end}}
+  {{- else if and .Values.autoscaling.enabled .Values.autoscaling.minReplicas }}
+  minAvailable: {{ if (lt (int .Values.autoscaling.minReplicas) 2) }}1{{else}}{{ div .Values.autoscaling.minReplicas 2 }}{{end}}
   {{- else }}
   minAvailable: {{ if (lt (int .Values.replicas) 2) }}1{{else}}{{ div .Values.replicas 2 }}{{end}}
   {{- end }}

charts/cronjob/Chart.yaml

@@ -3,7 +3,7 @@ name: cronjob
 description: A Helm chart for Kubernetes cronjob
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - cronjob

charts/default-base/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: default-base
 description: A Helm chart for Kubernetes - default-base for namespaces
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - BackendConfig

charts/ingress/Chart.yaml

@@ -3,7 +3,7 @@ name: ingress
 description: A Helm chart for Kubernetes ingress
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - ingress

charts/job/Chart.yaml

@@ -3,7 +3,7 @@ name: job
 description: A Helm chart for Kubernetes job
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - job

charts/prometheus-rules/Chart.yaml

@@ -3,7 +3,7 @@ name: prometheus-rules
 description: A Helm chart for Prometheus Rules
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - job

charts/rbac/Chart.yaml

@@ -3,7 +3,7 @@ name: rbac
 description: A Helm chart for Kubernetes rbac
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - rbac

charts/service/Chart.yaml

@@ -3,7 +3,7 @@ name: service
 description: A Helm chart for Kubernetes service
 type: application
 
-version: 0.14.0
+version: 0.15.0
 
 keywords:
   - service