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Ilan Zerath
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feat: Add PDB
Signed-off-by: Ilan Zerath <[email protected]>
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‎charts/backstage/Chart.yaml

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# This is the chart version. This version number should be incremented each time you make changes
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# to the chart and its templates, including the app version.
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# Versions are expected to follow Semantic Versioning (https://semver.org/)
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version: 2.3.1
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version: 2.3.2

‎charts/backstage/README.md

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# Backstage Helm Chart
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[![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/backstage)](https://artifacthub.io/packages/search?repo=backstage)
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![Version: 2.3.1](https://img.shields.io/badge/Version-2.3.1-informational?style=flat-square)
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![Version: 2.3.2](https://img.shields.io/badge/Version-2.3.2-informational?style=flat-square)
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![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
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A Helm chart for deploying a Backstage application
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| backstage.installDir | Directory containing the backstage installation | string | `"/app"` |
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| backstage.livenessProbe | Liveness Probe Ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes <!-- E.g. livenessProbe: failureThreshold: 3 httpGet: path: /.backstage/health/v1/liveness port: 7007 scheme: HTTP initialDelaySeconds: 60 periodSeconds: 10 successThreshold: 1 timeoutSeconds: 2 | object | `{"httpGet":{"path":"/.backstage/health/v1/liveness","port":7007,"scheme":"HTTP"}}` |
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| backstage.nodeSelector | Node labels for pod assignment <br /> Ref: https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#nodeselector | object | `{}` |
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| backstage.pdb | Pod Disruption Budget configuration ref: https://kubernetes.io/docs/tasks/run-application/configure-pdb/ | object | `{"create":false,"maxUnavailable":"","minAvailable":""}` |
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| backstage.podAnnotations | Annotations to add to the backend deployment pods | object | `{}` |
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| backstage.podLabels | Labels to add to the backend deployment pods | object | `{}` |
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| backstage.podSecurityContext | Security settings for a Pod. The security settings that you specify for a Pod apply to all Containers in the Pod. <br /> Ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-pod | object | `{}` |

‎charts/backstage/templates/pdb.yaml

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{{- if .Values.backstage.pdb.create }}
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apiVersion: policy/v1
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kind: PodDisruptionBudget
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metadata:
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name: {{ include "common.names.fullname" . }}
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namespace: {{ .Release.Namespace | quote }}
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labels: {{ include "common.labels.standard" . | nindent 4 }}
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app.kubernetes.io/component: backstage
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{{- if .Values.commonLabels }}
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{{- include "common.tplvalues.render" ( dict "value" .Values.commonLabels "context" $ ) | nindent 4 }}
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{{- end }}
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annotations:
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{{- if .Values.commonAnnotations }}
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{{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
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{{- end }}
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{{- if .Values.backstage.annotations }}
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{{- include "common.tplvalues.render" ( dict "value" .Values.backstage.annotations "context" $) | nindent 4 }}
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{{- end }}
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spec:
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{{- if .Values.backstage.pdb.minAvailable }}
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minAvailable: {{ .Values.backstage.pdb.minAvailable }}
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{{- end }}
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{{- if or .Values.backstage.pdb.maxUnavailable ( not .Values.backstage.pdb.minAvailable ) }}
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maxUnavailable: {{ .Values.backstage.pdb.maxUnavailable | default 1 }}
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{{- end }}
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selector:
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matchLabels: {{- include "common.labels.matchLabels" . | nindent 6 }}
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app.kubernetes.io/component: backstage
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{{- end }}

‎charts/backstage/values.schema.json

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"title": "Node labels for pod assignment",
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"type": "object"
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},
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"pdb": {
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"additionalProperties": false,
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"properties": {
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"create": {
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"default": false,
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"description": "Create a PDB",
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"title": "Backstage PDB",
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"type": "boolean"
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},
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"maxUnavailable": {
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"default": "",
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"title": "Backstage PDB maxUnavailable",
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"type": [
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"string",
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"integer"
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]
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},
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"minAvailable": {
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"default": "",
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"title": "Backstage PDB minAvailable",
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"type": [
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"string",
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"integer"
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]
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}
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},
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"title": "PDB parameters",
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"type": "object"
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},
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"podAnnotations": {
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"additionalProperties": {
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"type": "string"

‎charts/backstage/values.schema.tmpl.json

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}
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}
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},
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"pdb": {
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"title": "PDB parameters",
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"create": {
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"description": "Create a PDB",
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"title": "Backstage PDB",
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"type": "boolean",
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"default": false
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},
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"minAvailable": {
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"title": "Backstage PDB minAvailable",
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"type": [
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"string",
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"integer"
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],
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"default": ""
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},
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"maxUnavailable": {
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"title": "Backstage PDB maxUnavailable",
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"type": [
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"string",
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"integer"
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],
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"default": ""
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}
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}
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},
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"containerPorts": {
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"title": "Container ports on the Deployment",
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"type": "object",

‎charts/backstage/values.yaml

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# <br /> E.g: `pullSecrets: [myRegistryKeySecretName]`
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pullSecrets: []
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# -- Pod Disruption Budget configuration
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# ref: https://kubernetes.io/docs/tasks/run-application/configure-pdb/
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pdb:
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create: false
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minAvailable: ""
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maxUnavailable: ""
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# -- Container ports on the Deployment
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containerPorts:
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backend: 7007

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