Helmule MVP

Basic functionality is there, helmule can mirror helm chart with small
modifications

helmule/examples/giantswarm/extensions/ci-values/values-vpa.yaml

@@ -0,0 +1,9 @@
+resources:
+  requests:
+    memory: 100Mi
+    cpu: 70m
+  limits:
+    memory: 700Mi
+    cpu: 400m
+vpa:
+  enabled: true

helmule/examples/giantswarm/extensions/vpa-gitops-server/vpa.yaml

@@ -0,0 +1,27 @@
+{{ if eq (include "resource.vpa.enabled" .) "true" }}
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: gitops-server
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+spec:
+  resourcePolicy:
+    containerPolicies:
+    - containerName: {{ .Chart.Name }}
+      controlledValues: RequestsAndLimits
+      minAllowed:
+        cpu: {{ .Values.giantswarm.resources.server.requests.cpu }}
+        memory: {{ .Values.giantswarm.resources.server.requests.memory }}
+      maxAllowed:
+        cpu: 1000m
+        memory: 1000Mi
+      mode: Auto
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "chart.fullname" . }}
+  updatePolicy:
+    updateMode: Auto
+{{ end }}

helmule/examples/giantswarm/extensions/vpa/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "chart.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "chart.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "chart.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "chart.labels" -}}
+helm.sh/chart: {{ include "chart.chart" . }}
+{{ include "chart.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "chart.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "chart.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

helmule/examples/giantswarm/extensions/vpa/vpa.yaml

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+{{ if (.Values.vpa).enabled }}
+{{ if .Values.resources }}
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: {{ include "chart.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+spec:
+  resourcePolicy:
+    containerPolicies:
+    - containerName: manager
+      controlledValues: RequestsAndLimits
+      minAllowed:
+        cpu: {{ .Values.resources.requests.cpu }}
+        memory: {{ .Values.resources.requests.memory }}
+      maxAllowed:
+        cpu: {{ .Values.resources.limits.cpu }}
+        memory: {{ .Values.resources.limits.memory }}
+      mode: Auto
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "chart.fullname" . }}
+  updatePolicy:
+    updateMode: Auto
+{{- end }}
+{{- end }}