feat: Implement Helm Chart and update CI/CD pipeline

deploy/charts/evrak/Chart.yaml

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+apiVersion: v2
+name: evrak
+description: A Helm chart for Evrak Project Management System
+type: application
+version: 0.1.0
+appVersion: "0.1.0"

deploy/charts/evrak/templates/_helpers.tpl

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

deploy/charts/evrak/templates/backend.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "evrak.fullname" . }}-backend
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  replicas: {{ .Values.backend.replicas }}
+  selector:
+    matchLabels:
+      {{- include "evrak.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: backend
+  template:
+    metadata:
+      labels:
+        {{- include "evrak.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: backend
+    spec:
+      containers:
+        - name: backend
+          image: "{{ .Values.backend.image.repository }}:{{ .Values.backend.image.tag }}"
+          imagePullPolicy: {{ .Values.backend.image.pullPolicy }}
+          ports:
+            - containerPort: {{ .Values.backend.service.port }}
+          env:
+            - name: DB_HOST
+              value: {{ include "evrak.fullname" . }}-postgres
+            - name: DB_PORT
+              value: {{ .Values.backend.env.dbPort | quote }}
+            - name: DB_USERNAME
+              value: {{ .Values.postgres.auth.username | quote }}
+            - name: DB_DATABASE
+              value: {{ .Values.postgres.auth.database | quote }}
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "evrak.fullname" . }}-db-secret
+                  key: password
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "evrak.fullname" . }}-backend
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  ports:
+    - port: {{ .Values.backend.service.port }}
+      targetPort: {{ .Values.backend.service.port }}
+  selector:
+    {{- include "evrak.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: backend

deploy/charts/evrak/templates/frontend.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "evrak.fullname" . }}-frontend
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+spec:
+  replicas: {{ .Values.frontend.replicas }}
+  selector:
+    matchLabels:
+      {{- include "evrak.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: frontend
+  template:
+    metadata:
+      labels:
+        {{- include "evrak.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: frontend
+    spec:
+      containers:
+        - name: frontend
+          image: "{{ .Values.frontend.image.repository }}:{{ .Values.frontend.image.tag }}"
+          imagePullPolicy: {{ .Values.frontend.image.pullPolicy }}
+          ports:
+            - containerPort: {{ .Values.frontend.service.port }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "evrak.fullname" . }}-frontend
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+spec:
+  ports:
+    - port: {{ .Values.frontend.service.port }}
+      targetPort: {{ .Values.frontend.service.port }}
+  selector:
+    {{- include "evrak.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend

deploy/charts/evrak/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "evrak.fullname" . }}
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+  annotations:
+    {{- with .Values.ingress.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+spec:
+  ingressClassName: {{ .Values.ingress.className }}
+  rules:
+    - host: {{ .Values.global.domain }}
+      http:
+        paths:
+          - path: /api
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ include "evrak.fullname" . }}-backend
+                port:
+                  number: {{ .Values.backend.service.port }}
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ include "evrak.fullname" . }}-frontend
+                port:
+                  number: {{ .Values.frontend.service.port }}
+{{- end }}

deploy/charts/evrak/templates/postgres.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "evrak.fullname" . }}-postgres
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "evrak.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: postgres
+  template:
+    metadata:
+      labels:
+        {{- include "evrak.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: postgres
+    spec:
+      containers:
+        - name: postgres
+          image: "{{ .Values.postgres.image.repository }}:{{ .Values.postgres.image.tag }}"
+          env:
+            - name: POSTGRES_USER
+              value: {{ .Values.postgres.auth.username | quote }}
+            - name: POSTGRES_DB
+              value: {{ .Values.postgres.auth.database | quote }}
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "evrak.fullname" . }}-db-secret
+                  key: password
+          ports:
+            - containerPort: 5432
+          volumeMounts:
+            - name: data
+              mountPath: /var/lib/postgresql/data
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: {{ include "evrak.fullname" . }}-postgres-pvc
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "evrak.fullname" . }}-postgres
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+spec:
+  ports:
+    - port: 5432
+      targetPort: 5432
+  selector:
+    {{- include "evrak.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ include "evrak.fullname" . }}-postgres-pvc
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: {{ .Values.postgres.storage.className }}
+  resources:
+    requests:
+      storage: {{ .Values.postgres.storage.size }}

deploy/charts/evrak/templates/secrets.yaml

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "evrak.fullname" . }}-db-secret
+  labels:
+    {{- include "evrak.labels" . | nindent 4 }}
+type: Opaque
+data:
+  # In a real scenario, you'd want to generate this or pass it in. 
+  # For now, we'll use the value from values.yaml (base64 encoded automatically by Helm if we used stringData, but here we do it manually or let user provide it)
+  # Better approach: use stringData
+stringData:
+  password: {{ .Values.postgres.auth.password | default "postgres" | quote }}

deploy/charts/evrak/values.yaml

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+global:
+  domain: evrak.konstantiniyye.studio
+
+backend:
+  image:
+    repository: git.konstantiniyye.studio/muhammed/evrak/backend
+    tag: latest
+    pullPolicy: Always
+  replicas: 1
+  service:
+    port: 3000
+  env:
+    dbPort: 5432
+    dbDatabase: evrak
+    # dbHost, dbUsername, dbPassword will be injected via secrets/templates
+
+frontend:
+  image:
+    repository: git.konstantiniyye.studio/muhammed/evrak/frontend
+    tag: latest
+    pullPolicy: Always
+  replicas: 1
+  service:
+    port: 80
+
+postgres:
+  image:
+    repository: postgres
+    tag: "14-alpine"
+  storage:
+    size: 5Gi
+    className: "local-path" # Based on your cluster info
+  auth:
+    username: evrak_user
+    database: evrak
+    # Password should be managed via secrets, but for simplicity in values we can set a default or require it to be passed
+    # In production, use --set postgres.auth.password=...
+    
+ingress:
+  enabled: true
+  className: traefik
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt-prod # Assuming you have this, or remove if not