feat: add Helm chart for Kubernetes deployment

Includes:
- Deployment with health checks and resource limits
- Service (ClusterIP by default)
- PersistentVolumeClaim for data storage
- Optional Ingress with TLS support
- Configurable via values.yaml

Usage: helm install taskplaner ./helm/taskplaner

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

helm/taskplaner/.helmignore

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+# Patterns to ignore when building packages.
+.DS_Store
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+.git/
+.gitignore
+.project
+.settings/
+*.log

helm/taskplaner/Chart.yaml

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+apiVersion: v2
+name: taskplaner
+description: Personal task and notes management with image attachments
+type: application
+version: 0.1.0
+appVersion: "1.0.0"
+keywords:
+  - tasks
+  - notes
+  - productivity
+  - personal
+home: https://github.com/tricnet/taskplaner
+maintainers:
+  - name: TaskPlaner Team

helm/taskplaner/templates/NOTES.txt

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+Thank you for installing {{ .Chart.Name }}!
+
+Your release is named {{ .Release.Name }}.
+
+To access TaskPlaner:
+
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "taskplaner.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+  NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+        You can watch the status by running:
+  kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "taskplaner.fullname" . }}
+
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "taskplaner.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  kubectl --namespace {{ .Release.Namespace }} port-forward svc/{{ include "taskplaner.fullname" . }} 8080:{{ .Values.service.port }}
+
+  Then open http://localhost:8080 in your browser.
+{{- end }}
+
+IMPORTANT: Make sure to set config.origin to match your access URL for CSRF protection to work.
+
+To check the health of your deployment:
+  kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "taskplaner.name" . }},app.kubernetes.io/instance={{ .Release.Name }}"
+
+Data is persisted in a PersistentVolumeClaim named {{ include "taskplaner.pvcName" . }}.

helm/taskplaner/templates/_helpers.tpl

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

helm/taskplaner/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "taskplaner.fullname" . }}
+  labels:
+    {{- include "taskplaner.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      {{- include "taskplaner.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "taskplaner.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "taskplaner.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 3000
+              protocol: TCP
+          env:
+            - name: NODE_ENV
+              value: {{ .Values.config.nodeEnv | quote }}
+            - name: DATA_DIR
+              value: "/app/data"
+            - name: TASKPLANER_ORIGIN
+              value: {{ .Values.config.origin | quote }}
+            - name: PORT
+              value: "3000"
+          livenessProbe:
+            {{- toYaml .Values.livenessProbe | nindent 12 }}
+          readinessProbe:
+            {{- toYaml .Values.readinessProbe | nindent 12 }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: data
+              mountPath: /app/data
+      volumes:
+        - name: data
+          {{- if .Values.persistence.enabled }}
+          persistentVolumeClaim:
+            claimName: {{ include "taskplaner.pvcName" . }}
+          {{- else }}
+          emptyDir: {}
+          {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

helm/taskplaner/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "taskplaner.fullname" . }}
+  labels:
+    {{- include "taskplaner.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if .Values.ingress.className }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
+  {{- 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: {{ .path }}
+            pathType: {{ .pathType }}
+            backend:
+              service:
+                name: {{ include "taskplaner.fullname" $ }}
+                port:
+                  name: http
+          {{- end }}
+    {{- end }}
+{{- end }}

helm/taskplaner/templates/pvc.yaml

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+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ include "taskplaner.fullname" . }}-data
+  labels:
+    {{- include "taskplaner.labels" . | nindent 4 }}
+  {{- with .Values.persistence.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  accessModes:
+    - {{ .Values.persistence.accessMode }}
+  {{- if .Values.persistence.storageClass }}
+  storageClassName: {{ .Values.persistence.storageClass | quote }}
+  {{- end }}
+  resources:
+    requests:
+      storage: {{ .Values.persistence.size }}
+{{- end }}

helm/taskplaner/templates/service.yaml

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

helm/taskplaner/values.yaml

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+# Default values for taskplaner
+
+replicaCount: 1
+
+image:
+  repository: taskplaner
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion
+  tag: ""
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext:
+  fsGroup: 1001
+
+securityContext:
+  runAsNonRoot: true
+  runAsUser: 1001
+  runAsGroup: 1001
+  allowPrivilegeEscalation: false
+  readOnlyRootFilesystem: false
+  capabilities:
+    drop:
+      - ALL
+
+service:
+  type: ClusterIP
+  port: 80
+  targetPort: 3000
+
+ingress:
+  enabled: false
+  className: ""
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # cert-manager.io/cluster-issuer: letsencrypt-prod
+  hosts:
+    - host: taskplaner.local
+      paths:
+        - path: /
+          pathType: Prefix
+  tls: []
+  #  - secretName: taskplaner-tls
+  #    hosts:
+  #      - taskplaner.local
+
+resources:
+  limits:
+    cpu: 500m
+    memory: 256Mi
+  requests:
+    cpu: 100m
+    memory: 128Mi
+
+persistence:
+  enabled: true
+  # Use an existing PVC instead of creating one
+  existingClaim: ""
+  # Storage class for dynamic provisioning
+  storageClass: ""
+  accessMode: ReadWriteOnce
+  size: 1Gi
+  # Annotations for the PVC
+  annotations: {}
+
+livenessProbe:
+  httpGet:
+    path: /health
+    port: http
+  initialDelaySeconds: 10
+  periodSeconds: 30
+  timeoutSeconds: 10
+  failureThreshold: 3
+
+readinessProbe:
+  httpGet:
+    path: /health
+    port: http
+  initialDelaySeconds: 5
+  periodSeconds: 10
+  timeoutSeconds: 5
+  failureThreshold: 3
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
+
+# Application-specific configuration
+config:
+  # The external URL where the app is accessible (required for CSRF protection)
+  # Set this to your ingress URL or service URL
+  origin: "http://localhost:3000"
+  # Node environment
+  nodeEnv: production