🧁 Feature/etherpad 🧁 (#31)

* 🥝 add etherpad chart 🥝
* 🥝 linting 🥝

charts/etherpad/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/etherpad/Chart.yaml

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+apiVersion: v2
+name: etherpad
+description: A Helm chart for etherpad lite
+type: application
+version: 0.0.1
+appVersion: latest
+home: https://github.com/rht-labs/helm-charts
+maintainers:
+  - name: eformat

charts/etherpad/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "etherpad.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 "etherpad.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 "etherpad.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "etherpad.labels" -}}
+helm.sh/chart: {{ include "etherpad.chart" . }}
+{{ include "etherpad.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "etherpad.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "etherpad.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}

charts/etherpad/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "etherpad.fullname" . }}
+  labels:
+    {{- include "etherpad.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "etherpad.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "etherpad.selectorLabels" . | nindent 8 }}
+    spec:
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - env:
+          - name: TITLE
+            value: {{ .Values.defaultTitle }}
+          - name: DEFAULT_PAD_TEXT
+            value: {{ .Values.defaultText }}
+          name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}/{{ .Chart.Name }}:{{ .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 9001
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: etherpad-data
+              mountPath: {{ .Values.persistence.mountPath }}
+    {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      volumes:
+      - name: etherpad-data
+    {{- if .Values.persistence.enabled }}
+        persistentVolumeClaim:
+          claimName: {{ .Values.persistence.existingClaim | default (printf "%s" (include "etherpad.fullname" .)) }}
+    {{- else }}
+        emptyDir: {}
+    {{- end }}

charts/etherpad/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "etherpad.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "etherpad.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+  {{- range .Values.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . | quote }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+        {{- range .paths }}
+          - path: {{ . }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+        {{- end }}
+  {{- end }}
+{{- end }}

charts/etherpad/templates/pvc.yaml

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+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: {{ include "etherpad.fullname" . }}
+  labels:
+    {{- include "etherpad.labels" . | nindent 4 }}
+{{ if .Values.persistence.annotations}}
+  annotations:
+    {{- range $key, $value := .Values.persistence.annotations }}
+    {{ $key }}: {{ $value | quote }}
+    {{- end }}
+{{- end }}
+spec:
+  accessModes:
+    - {{ .Values.persistence.accessMode | quote }}
+  resources:
+    requests:
+      storage: {{ .Values.persistence.size | quote }}
+{{- if .Values.persistence.storageClass }}
+{{- if (eq "-" .Values.persistence.storageClass) }}
+  storageClassName: ""
+{{- else }}
+  storageClassName: "{{ .Values.persistence.storageClass }}"
+{{- end }}
+{{- end }}
+{{- end }}

charts/etherpad/templates/route.yaml

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+{{- if .Values.route.enabled -}}
+{{- $fullName := include "etherpad.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+---
+apiVersion: route.openshift.io/v1
+kind: Route
+metadata:
+  annotations:
+    openshift.io/host.generated: "true"
+  name: {{ $fullName }}
+  labels:
+    {{- include "etherpad.labels" . | nindent 4 }}
+spec:
+  host: {{ .Values.route.host | quote }}
+  port:
+    targetPort: {{ .Values.route.targetPort | default "8080-tcp" }}
+  to:
+    kind: Service
+    name: {{ $fullName }}
+    weight: 100
+  tls:
+    insecureEdgeTerminationPolicy: Redirect
+    termination: edge
+status:
+  ingress:
+    - conditions:
+        - status: 'True'
+          type: Admitted
+{{ end }}

charts/etherpad/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "etherpad.fullname" . }}
+  labels:
+    {{- include "etherpad.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "etherpad.selectorLabels" . | nindent 4 }}

charts/etherpad/values.yaml

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+# Default values for etherpad.
+replicaCount: 1
+
+defaultTitle: "Labs Etherpad"
+defaultText: "✍️ Assign yourself a user and share your ideas! ✍️"
+
+image:
+  repository: etherpad
+  pullPolicy: IfNotPresent
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+podSecurityContext: {}
+securityContext: {}
+
+service:
+  type: ClusterIP
+  port: 9001
+
+ingress:
+  enabled: false
+  hosts:
+    - name: etherpad.organization.com
+  annotations: {}
+
+route:
+  enabled: true
+  host: null
+  targetPort: http
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
+
+persistence:
+  enabled: true
+  annotations: {}
+  storageClass:
+  accessMode: ReadWriteOnce
+  size: 1Gi
+  mountPath: /opt/etherpad-lite/var