Add Guacamole chart

charts/guacamole/.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/guacamole/Chart.yaml

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+apiVersion: v2
+name: guacamole
+description: A remote desktop frontend
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application.
+appVersion: 1.1.0

charts/guacamole/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "guacamole.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 "guacamole.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 "guacamole.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "guacamole.labels" -}}
+helm.sh/chart: {{ include "guacamole.chart" . }}
+{{ include "guacamole.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "guacamole.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "guacamole.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "guacamole.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "guacamole.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

charts/guacamole/templates/daemon/_helpers.tpl

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+{{/*
+Common labels
+*/}}
+{{- define "guacamole.labels.daemon" -}}
+{{ include "guacamole.labels" . }}
+app.kubernetes.io/component: guacd
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "guacamole.selectorLabels.daemon" -}}
+{{ include "guacamole.selectorLabels" . }}
+app.kubernetes.io/component: guacd
+{{- end -}}

charts/guacamole/templates/daemon/deployment.yaml

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+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "guacamole.fullname" . }}-daemon
+  labels: {{- include "guacamole.labels.daemon" . | nindent 4 }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels: {{- include "guacamole.selectorLabels.daemon" . | nindent 6 }}
+  template:
+    metadata:
+      labels: {{- include "guacamole.selectorLabels.daemon" . | nindent 8 }}
+    spec:
+      {{- if .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- range $i, $name := .Values.imagePullSecrets }}
+        - name: {{ $name }}
+        {{- end }}
+      {{- end }}
+      serviceAccountName: {{ include "guacamole.serviceAccountName" . }}
+      containers:
+        - name: guacd
+          image: {{ printf "%s:%s" .Values.daemon.image.repository .Chart.AppVersion }}
+          imagePullPolicy: {{ .Values.daemon.image.pullPolicy }}
+          ports:
+            - name: guacd
+              containerPort: 4822

charts/guacamole/templates/daemon/networkpolicy.yaml

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+{{- if .Values.daemon.networkPolicy.enabled }}
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ include "guacamole.fullname" . }}-daemon
+  labels: {{- include "guacamole.labels.daemon" . | nindent 4 }}
+spec:
+  podSelector:
+    matchLabels: {{- include "guacamole.selectorLabels.daemon" . | nindent 6 }}
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels: {{- include "guacamole.selectorLabels.frontend" . | nindent 14 }}
+{{- end }}

charts/guacamole/templates/daemon/service.yaml

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+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "guacamole.fullname" . }}-daemon
+  labels: {{- include "guacamole.labels.daemon" . | nindent 4 }}
+spec:
+  selector: {{- include "guacamole.selectorLabels.daemon" . | nindent 4 }}
+  ports:
+    - name: guacd
+      port: 4822
+      targetPort: guacd

charts/guacamole/templates/frontend/_helpers.tpl

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+{{/*
+Common labels
+*/}}
+{{- define "guacamole.labels.frontend" -}}
+{{ include "guacamole.labels" . }}
+app.kubernetes.io/component: frontend
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "guacamole.selectorLabels.frontend" -}}
+{{ include "guacamole.selectorLabels" . }}
+app.kubernetes.io/component: frontend
+{{- end -}}

charts/guacamole/templates/frontend/deployment.yaml

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+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "guacamole.fullname" . }}-frontend
+  labels: {{- include "guacamole.labels.frontend" . | nindent 4 }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels: {{- include "guacamole.selectorLabels.frontend" . | nindent 6 }}
+  template:
+    metadata:
+      #
+      # Annotations to recreate deployment if config changes
+      #
+      annotations:
+        helm.sh/db-config-sha256: {{ .Values.database | toJson | sha256sum | trunc 32 }}
+      labels: {{- include "guacamole.selectorLabels.frontend" . | nindent 8 }}
+    spec:
+      {{- if .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- range $i, $name := .Values.imagePullSecrets }}
+        - name: {{ $name }}
+        {{- end }}
+      {{- end }}
+      serviceAccountName: {{ include "guacamole.serviceAccountName" . }}
+      containers:
+        - name: guacamole
+          image: {{ printf "%s:%s" .Values.frontend.image.repository .Chart.AppVersion }}
+          imagePullPolicy: {{ .Values.frontend.image.pullPolicy }}
+          env:
+            # Guacamole daemon location
+            - name: GUACD_HOSTNAME
+              value: {{ include "guacamole.fullname" . }}-daemon.{{ .Release.Namespace }}.svc
+            - name: GUACD_PORT
+              value: {{ 4822 | quote }}
+            # Database credentials
+            - name: POSTGRES_HOSTNAME
+              value: {{ .Values.database.postgres.host }}
+            - name: POSTGRES_DATABASE
+              value: {{ .Values.database.postgres.database }}
+            - name: POSTGRES_USER
+              value: {{ .Values.database.postgres.user }}
+          envFrom:
+            - secretRef:
+                name: {{ include "guacamole.fullname" . }}-frontend
+          ports:
+            - name: http
+              containerPort: 8080

charts/guacamole/templates/frontend/ingress.yaml

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+{{- if .Values.frontend.ingress.enabled }}
+---
+apiVersion: networking.k8s.io/v1beta1
+kind: Ingress
+metadata:
+  name: {{ include "guacamole.fullname" . }}-frontend
+  {{- if .Values.frontend.ingress.annotations }}
+  annotations: {{- .Values.frontend.ingress.annotations | toYaml | nindent 4 }}
+  labels: {{- include "guacamole.labels.frontend" . | nindent 4 }}
+spec:
+  {{- if .Values.frontend.ingress.hosts }}
+  rules:
+    {{- range $i, $host := .Values.frontend.ingress.hosts }}
+    - host: {{ $host.host }}
+      http:
+        paths:
+          {{- range $j, $path := $host.paths }}
+          - path: {{ $path }}
+            backend:
+              serviceName: {{ include "guacamole.fullname" $ }}-frontend
+              servicePort: http
+          {{- end }}
+    {{- end }}
+  {{- end }}
+  {{- if .Values.frontend.ingress.tls }}
+  tls:
+    {{- range $i, $tls := .Values.frontend.ingress.tls }}
+    - secretName: {{ $tls.secretName }}
+      hosts:
+        {{- range $j, $host := $tls.hosts }}
+        - {{ $host }}
+        {{- end }}
+    {{- end }}
+  {{- end }}
+{{- end }}
+{{- end }}

charts/guacamole/templates/frontend/secret.yaml

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+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "guacamole.fullname" . }}-frontend
+  labels: {{- include "guacamole.labels.frontend" . | nindent 4 }}
+data:
+  # Database credentials
+  POSTGRES_PASSWORD: {{ .Values.database.postgres.password | b64enc | quote }}

charts/guacamole/templates/frontend/service.yaml

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+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "guacamole.fullname" . }}-frontend
+  labels: {{- include "guacamole.labels.frontend" . | nindent 4 }}
+spec:
+  selector: {{- include "guacamole.selectorLabels.frontend" . | nindent 4 }}
+  ports:
+    - name: http
+      port: 80
+      targetPort: http

charts/guacamole/templates/hooks/_helpers.tpl

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+{{/*
+Common labels
+*/}}
+{{- define "guacamole.labels.hook" -}}
+{{ include "guacamole.labels" . }}
+app.kubernetes.io/component: hook
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "guacamole.selectorLabels.hook" -}}
+{{ include "guacamole.selectorLabels" . }}
+app.kubernetes.io/component: hook
+{{- end -}}

charts/guacamole/templates/hooks/initialize_database.yaml

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+{{- if .Values.hooks.initializeDatabase.enabled }}
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "guacamole.fullname" . }}-frontend-initialize-database
+  annotations:
+    "helm.sh/hook": pre-install
+    "helm.sh/hook-weight": "-1"
+    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
+  labels: {{- include "guacamole.labels.hook" . | nindent 4 }}
+data:
+  PGPASSWORD: {{ .Values.database.postgres.password | b64enc | quote }}
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: {{ include "guacamole.fullname" . }}-frontend-initialize-database
+  annotations:
+    "helm.sh/hook": pre-install
+    "helm.sh/hook-weight": "1"
+    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
+  labels: {{- include "guacamole.labels.hook" . | nindent 4 }}
+spec:
+  template:
+    metadata:
+      labels: {{- include "guacamole.labels.hook" . | nindent 8 }}
+    spec:
+      restartPolicy: Never
+      volumes:
+        - name: scratchpad
+          emptyDir: {}
+      initContainers:
+        - name: create-sql-manifests
+          image: {{ printf "%s:%s" .Values.frontend.image.repository .Chart.AppVersion }}
+          imagePullPolicy: {{ .Values.frontend.image.pullPolicy }}
+          command:
+            - /bin/sh
+            - -ec
+          args:
+            - >-
+              /opt/guacamole/bin/initdb.sh
+              --postgres
+              > /scratchpad/init.sql
+          volumeMounts:
+            - name: scratchpad
+              mountPath: /scratchpad
+      containers:
+        - name: setup-database
+          image: {{ .Values.hooks.initializeDatabase.postgresImage }}
+          imagePullPolicy: Always
+          command:
+            - /bin/sh
+            - -ec
+          args:
+            - >-
+              psql
+              --file=/scratchpad/init.sql
+              --host={{ .Values.database.postgres.host }}
+              --dbname={{ .Values.database.postgres.database }}
+              --username={{ .Values.database.postgres.user }}
+          envFrom:
+            - secretRef:
+                name: {{ include "guacamole.fullname" . }}-frontend-initialize-database
+          volumeMounts:
+            - name: scratchpad
+              mountPath: /scratchpad
+{{- end }}