REFACTOR(repo): migrate to Helm chart structure

- Add web-app Helm chart in charts/web-app/
- Replace individual deployment/service/ingress YAML with helm-values
- Update ArgoCD applications to use Helm chart with values files
- Reduces per-app files from 6 to 2 (argocd.yaml + helm-values.yaml)

Apps migrated: jaejadle, jaejadle-dev, joossam, joossam-dev,
jotion, jovies, portfolio, todo

charts/web-app/templates/_helpers.tpl

@@ -0,0 +1,40 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "web-app.name" -}}
+{{- default .Chart.Name .Values.name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+*/}}
+{{- define "web-app.fullname" -}}
+{{- if .Values.name }}
+{{- .Values.name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "web-app.labels" -}}
+app: {{ include "web-app.fullname" . }}
+app.kubernetes.io/name: {{ include "web-app.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "web-app.selectorLabels" -}}
+app: {{ include "web-app.fullname" . }}
+{{- end }}
+
+{{/*
+Image name
+*/}}
+{{- define "web-app.image" -}}
+{{- printf "%s/%s:%s" .Values.image.registry .Values.image.repository .Values.image.tag }}
+{{- end }}

charts/web-app/templates/deployment.yaml

@@ -0,0 +1,76 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "web-app.fullname" . }}
+  labels:
+    {{- include "web-app.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "web-app.selectorLabels" . | nindent 6 }}
+  strategy:
+    type: {{ .Values.strategy.type }}
+    {{- if eq .Values.strategy.type "RollingUpdate" }}
+    rollingUpdate:
+      maxUnavailable: {{ .Values.strategy.rollingUpdate.maxUnavailable }}
+      maxSurge: {{ .Values.strategy.rollingUpdate.maxSurge }}
+    {{- end }}
+  revisionHistoryLimit: {{ .Values.revisionHistoryLimit }}
+  template:
+    metadata:
+      labels:
+        {{- include "web-app.selectorLabels" . | nindent 8 }}
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: {{ include "web-app.fullname" . }}
+          image: {{ include "web-app.image" . }}
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - containerPort: {{ .Values.containerPort }}
+              protocol: TCP
+          {{- with .Values.env }}
+          env:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.envFrom }}
+          envFrom:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          {{- if .Values.healthCheck.enabled }}
+          livenessProbe:
+            httpGet:
+              path: {{ .Values.healthCheck.path }}
+              port: {{ .Values.containerPort }}
+            initialDelaySeconds: {{ .Values.healthCheck.livenessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.healthCheck.livenessProbe.periodSeconds }}
+          readinessProbe:
+            httpGet:
+              path: {{ .Values.healthCheck.path }}
+              port: {{ .Values.containerPort }}
+            initialDelaySeconds: {{ .Values.healthCheck.readinessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.healthCheck.readinessProbe.periodSeconds }}
+          {{- end }}
+      restartPolicy: Always
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/web-app/templates/external-secret.yaml

@@ -0,0 +1,22 @@
+{{- if .Values.externalSecret.enabled }}
+apiVersion: external-secrets.io/v1
+kind: ExternalSecret
+metadata:
+  name: {{ include "web-app.fullname" . }}-secrets
+spec:
+  refreshInterval: {{ .Values.externalSecret.refreshInterval }}
+  secretStoreRef:
+    name: {{ .Values.externalSecret.secretStoreRef.name }}
+    kind: {{ .Values.externalSecret.secretStoreRef.kind }}
+  target:
+    name: {{ include "web-app.fullname" . }}-secrets
+    creationPolicy: {{ .Values.externalSecret.target.creationPolicy }}
+    deletionPolicy: {{ .Values.externalSecret.target.deletionPolicy }}
+  data:
+    {{- range .Values.externalSecret.data }}
+    - secretKey: {{ .secretKey }}
+      remoteRef:
+        key: {{ .remoteRef.key }}
+        property: {{ .remoteRef.property }}
+    {{- end }}
+{{- end }}

charts/web-app/templates/ingress.yaml

@@ -0,0 +1,37 @@
+{{- if .Values.ingress.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "web-app.fullname" . }}-ingress
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- 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 "web-app.fullname" $ }}
+                port:
+                  number: {{ $.Values.service.port }}
+          {{- end }}
+    {{- end }}
+{{- end }}

charts/web-app/templates/service.yaml

@@ -0,0 +1,17 @@
+{{- if .Values.service.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "web-app.fullname" . }}
+  labels:
+    {{- include "web-app.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - name: http
+      port: {{ .Values.service.port }}
+      targetPort: {{ .Values.containerPort }}
+      protocol: TCP
+  selector:
+    {{- include "web-app.selectorLabels" . | nindent 4 }}
+{{- end }}