Jenkins-X scale Previews to Zero with Osiris for dev packs with `preview/values.yaml.gotoml` (note: I'm using "_" in filename instead of "/" because of Gist limitation)

charts_PROJECT-NAME_templates_deployment.yaml

{{- if .Values.knativeDeploy }}
{{- else }}
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ template "fullname" . }}
  labels:
    draft: {{ default "draft-app" .Values.draft }}
    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
{{- if .Values.deploymentLabels }}
{{ toYaml .Values.deploymentLabels | indent 4 }}
{{- end }}
{{- if .Values.deploymentAnnotations }}
  {{- with .Values.deploymentAnnotations }}
  annotations:
{{ tpl (toYaml .) $ | trim | indent 4 }}
  {{- end }}
{{- end }}
spec:
  selector:
    matchLabels:
      app: {{ template "fullname" . }}
{{- if .Values.hpa.enabled }}
{{- else }}
  replicas: {{ .Values.replicaCount }}
{{- end }}
  template:
    metadata:
      labels:
        draft: {{ default "draft-app" .Values.draft }}
        app: {{ template "fullname" . }}
{{- if .Values.podsLabels }}
{{ toYaml .Values.podsLabels | indent 6 }}
{{- end }}
{{- if .Values.podAnnotations }}
      annotations:
{{ toYaml .Values.podAnnotations | indent 8 }}
{{- end }}
    spec:
{{- if .Values.serviceAccount.enabled }}
{{- if .Values.serviceAccount.name }}
      serviceAccountName: {{ .Values.serviceAccount.name }}
{{- else }}
      serviceAccountName: {{ template "fullname" . }}
{{- end }}
{{- end }}
      containers:
      - name: {{ .Chart.Name }}
        image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
        imagePullPolicy: {{ .Values.image.pullPolicy }}
        env:
        - name: VERSION
          value: {{ .Chart.Version }}
{{- range $pkey, $pval := .Values.env }}
        - name: {{ $pkey }}
          value: {{ quote $pval }}
{{- end }}
        envFrom:
{{ toYaml .Values.envFrom | indent 10 }}
        ports:
        - name: http
          containerPort: {{ .Values.service.internalPort }}
        livenessProbe:
          httpGet:
            path: {{ .Values.livenessProbe.probePath | default .Values.probePath }}
            port: {{ .Values.service.internalPort }}
          initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
          periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
          successThreshold: {{ .Values.livenessProbe.successThreshold }}
          timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
        readinessProbe:
          httpGet:
            path: {{ .Values.readinessProbe.probePath | default .Values.probePath }}
            port: {{ .Values.service.internalPort }}
          periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
          successThreshold: {{ .Values.readinessProbe.successThreshold }}
          timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
        resources:
{{ toYaml .Values.resources | indent 12 }}
      terminationGracePeriodSeconds: {{ .Values.terminationGracePeriodSeconds }}
      imagePullSecrets:
{{- range $pval := .Values.jx.imagePullSecrets }}
      - name: {{ quote $pval }}
{{- end }}
{{- end }}

charts_PROJECT-NAME_templates_service.yaml

{{- if or .Values.knativeDeploy .Values.canary.enabled }}
{{- else }}
apiVersion: v1
kind: Service
metadata:
{{- if .Values.service.name }}
  name: {{ .Values.service.name }}
{{- else }}
  name: {{ template "fullname" . }}
{{- end }}
  labels:
    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
{{- if .Values.service.labels }}
{{ toYaml .Values.service.labels | indent 4 }}
{{- end }}
{{- if .Values.service.annotations }}
  {{- with .Values.service.annotations }}
  annotations:
{{ tpl (toYaml .) $ | trim | indent 4 }}
  {{- end }}
{{- end }}
spec:
  type: {{ .Values.service.type }}
  ports:
  - port: {{ .Values.service.externalPort }}
    targetPort: {{ .Values.service.internalPort }}
    protocol: TCP
    name: http
  selector:
    app: {{ template "fullname" . }}
{{- end }}

preview_values.yaml.gotoml

jxRequirements:
  ingress:
    namespaceSubDomain: "-pr{{ requiredEnv "PULL_NUMBER" }}."

image:
  repository: "{{ requiredEnv "DOCKER_REGISTRY" }}/{{ requiredEnv "DOCKER_REGISTRY_ORG" }}/{{ requiredEnv "APP_NAME" }}"
  tag: "{{ requiredEnv "VERSION" }}"
  pullPolicy: "Always"

deploymentAnnotations:
  osiris.dm.gg/enableScaling: "true"
  osiris.dm.gg/metricsCheckInterval: "120"
podAnnotations:
  osiris.dm.gg/collectMetrics: "true"
service:
  annotations:
    osiris.dm.gg/manageEndpoints: "true"
    osiris.dm.gg/deployment: '{{"{{ template \"fullname\" . }}"}}'
    osiris.dm.gg/loadBalancerHostname: '{{"{{ .Values.service.name }}{{ .Values.jxRequirements.ingress.namespaceSubDomain }}{{ .Values.jxRequirements.ingress.domain }}"}}'