add ci/cd

.github/workflows/backend-cicd_ArgoCD.yaml

@@ -0,0 +1,254 @@
+name: Backend Services CI/CD
+
+on:
+  push:
+    branches: [ main, develop ]
+    paths:
+      - 'user/**'
+      - 'meeting/**'
+      - 'stt/**'
+      - 'ai/**'
+      - 'notification/**'
+      - 'common/**'
+      - '.github/**'
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+    inputs:
+      ENVIRONMENT:
+        description: 'Target environment'
+        required: true
+        default: 'dev'
+        type: choice
+        options:
+          - dev
+          - staging
+          - prod
+      SKIP_SONARQUBE:
+        description: 'Skip SonarQube Analysis'
+        required: false
+        default: 'true'
+        type: choice
+        options:
+          - 'true'
+          - 'false'
+
+env:
+  REGISTRY: acrdigitalgarage02.azurecr.io
+  IMAGE_ORG: hgzero
+  RESOURCE_GROUP: rg-digitalgarage-02
+  AKS_CLUSTER: aks-digitalgarage-02
+  NAMESPACE: hgzero
+
+jobs:
+  build:
+    name: Build and Test
+    runs-on: ubuntu-latest
+    outputs:
+      image_tag: ${{ steps.set_outputs.outputs.image_tag }}
+      environment: ${{ steps.set_outputs.outputs.environment }}
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v3
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+          cache: 'gradle'
+
+      - name: Determine environment
+        id: determine_env
+        run: |
+          # Use input parameter or default to 'dev'
+          ENVIRONMENT="${{ github.event.inputs.ENVIRONMENT || 'dev' }}"
+          echo "environment=$ENVIRONMENT" >> $GITHUB_OUTPUT
+
+      - name: Load environment variables
+        id: env_vars
+        run: |
+          ENV=${{ steps.determine_env.outputs.environment }}
+
+          # Initialize variables with defaults
+          REGISTRY="acrdigitalgarage02.azurecr.io"
+          IMAGE_ORG="hgzero"
+          RESOURCE_GROUP="rg-digitalgarage-02"
+          AKS_CLUSTER="aks-digitalgarage-02"
+          NAMESPACE="hgzero"
+
+          # Read environment variables from .github/config file
+          if [[ -f ".github/config/deploy_env_vars_${ENV}" ]]; then
+            while IFS= read -r line || [[ -n "$line" ]]; do
+              # Skip comments and empty lines
+              [[ "$line" =~ ^#.*$ ]] && continue
+              [[ -z "$line" ]] && continue
+
+              # Extract key-value pairs
+              key=$(echo "$line" | cut -d '=' -f1)
+              value=$(echo "$line" | cut -d '=' -f2-)
+
+              # Override defaults if found in config
+              case "$key" in
+                "resource_group") RESOURCE_GROUP="$value" ;;
+                "cluster_name") AKS_CLUSTER="$value" ;;
+              esac
+            done < ".github/config/deploy_env_vars_${ENV}"
+          fi
+
+          # Export for other jobs
+          echo "REGISTRY=$REGISTRY" >> $GITHUB_ENV
+          echo "IMAGE_ORG=$IMAGE_ORG" >> $GITHUB_ENV
+          echo "RESOURCE_GROUP=$RESOURCE_GROUP" >> $GITHUB_ENV
+          echo "AKS_CLUSTER=$AKS_CLUSTER" >> $GITHUB_ENV
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build with Gradle
+        run: |
+          ./gradlew build -x test
+
+      - name: SonarQube Analysis & Quality Gate
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
+        run: |
+          # Check if SonarQube should be skipped
+          SKIP_SONARQUBE="${{ github.event.inputs.SKIP_SONARQUBE || 'true' }}"
+
+          if [[ "$SKIP_SONARQUBE" == "true" ]]; then
+            echo "⏭️ Skipping SonarQube Analysis (SKIP_SONARQUBE=$SKIP_SONARQUBE)"
+            exit 0
+          fi
+
+          # Define services array
+          services=(user meeting stt ai notification)
+
+          # Run tests, coverage reports, and SonarQube analysis for each service
+          for service in "${services[@]}"; do
+            ./gradlew :$service:test :$service:jacocoTestReport :$service:sonar \
+              -Dsonar.projectKey=hgzero-$service-${{ steps.determine_env.outputs.environment }} \
+              -Dsonar.projectName=hgzero-$service-${{ steps.determine_env.outputs.environment }} \
+              -Dsonar.host.url=$SONAR_HOST_URL \
+              -Dsonar.token=$SONAR_TOKEN \
+              -Dsonar.java.binaries=build/classes/java/main \
+              -Dsonar.coverage.jacoco.xmlReportPaths=build/reports/jacoco/test/jacocoTestReport.xml \
+              -Dsonar.exclusions=**/config/**,**/entity/**,**/dto/**,**/*Application.class,**/exception/**
+          done
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-builds
+          path: |
+            user/build/libs/*.jar
+            meeting/build/libs/*.jar
+            stt/build/libs/*.jar
+            ai/build/libs/*.jar
+            notification/build/libs/*.jar
+
+      - name: Set outputs
+        id: set_outputs
+        run: |
+          # Generate timestamp for image tag
+          IMAGE_TAG=$(date +%Y%m%d%H%M%S)
+          echo "image_tag=$IMAGE_TAG" >> $GITHUB_OUTPUT
+          echo "environment=${{ steps.determine_env.outputs.environment }}" >> $GITHUB_OUTPUT
+
+  release:
+    name: Build and Push Docker Images
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: app-builds
+
+      - name: Set environment variables from build job
+        run: |
+          echo "REGISTRY=${{ env.REGISTRY }}" >> $GITHUB_ENV
+          echo "IMAGE_ORG=${{ env.IMAGE_ORG }}" >> $GITHUB_ENV
+          echo "ENVIRONMENT=${{ needs.build.outputs.environment }}" >> $GITHUB_ENV
+          echo "IMAGE_TAG=${{ needs.build.outputs.image_tag }}" >> $GITHUB_ENV
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub (prevent rate limit)
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Login to Azure Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.ACR_USERNAME }}
+          password: ${{ secrets.ACR_PASSWORD }}
+
+      - name: Build and push Docker images for all services
+        run: |
+          # Define services array
+          services=(user meeting stt ai notification)
+
+          # Build and push each service image
+          for service in "${services[@]}"; do
+            echo "Building and pushing $service..."
+            docker build \
+              --build-arg BUILD_LIB_DIR="$service/build/libs" \
+              --build-arg ARTIFACTORY_FILE="$service.jar" \
+              -f deployment/container/Dockerfile-backend \
+              -t ${{ env.REGISTRY }}/${{ env.IMAGE_ORG }}/$service:${{ needs.build.outputs.environment }}-${{ needs.build.outputs.image_tag }} .
+
+            docker push ${{ env.REGISTRY }}/${{ env.IMAGE_ORG }}/$service:${{ needs.build.outputs.environment }}-${{ needs.build.outputs.image_tag }}
+          done
+
+  update-manifest:
+    name: Update Manifest Repository
+    needs: [build, release]
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Set image tag environment variable
+      run: |
+        echo "IMAGE_TAG=${{ needs.build.outputs.image_tag }}" >> $GITHUB_ENV
+        echo "ENVIRONMENT=${{ needs.build.outputs.environment }}" >> $GITHUB_ENV
+
+    - name: Update Manifest Repository
+      run: |
+        # 매니페스트 레포지토리 클론
+        REPO_URL=$(echo "https://github.com/hjmoons/hgzero-manifest.git" | sed 's|https://||')
+        git clone https://${{ secrets.GIT_USERNAME }}:${{ secrets.GIT_PASSWORD }}@${REPO_URL} manifest-repo
+        cd manifest-repo
+
+        # Kustomize 설치
+        curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
+        sudo mv kustomize /usr/local/bin/
+
+        # 매니페스트 업데이트
+        cd hgzero/kustomize/overlays/${{ env.ENVIRONMENT }}
+
+        # 각 서비스별 이미지 태그 업데이트
+        services="user meeting stt ai notification"
+        for service in $services; do
+          kustomize edit set image acrdigitalgarage02.azurecr.io/hgzero/$service:${{ env.ENVIRONMENT }}-${{ env.IMAGE_TAG }}
+        done
+
+        # Git 설정 및 푸시
+        cd ../../../..
+        git config user.name "GitHub Actions"
+        git config user.email "actions@github.com"
+        git add .
+        git commit -m "🚀 Update hgzero ${{ env.ENVIRONMENT }} images to ${{ env.ENVIRONMENT }}-${{ env.IMAGE_TAG }}"
+        git push origin main
+
+        echo "✅ 매니페스트 업데이트 완료. ArgoCD가 자동으로 배포합니다."

deploy/k8s/backend/README.md

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+# HGZero 백엔드 서비스 Kubernetes 배포 가이드
+
+## 개요
+
+이 가이드는 HGZero 백엔드 서비스(User, Meeting, Notification)를 Azure Kubernetes Service(AKS)에 배포하는 방법을 설명합니다.
+
+## 배포 환경
+
+- **ACR(Azure Container Registry)**: acrdigitalgarage02
+- **AKS(Azure Kubernetes Service)**: aks-digitalgarage-02
+- **네임스페이스**: hgzero
+- **리소스 그룹**: rg-digitalgarage-02
+
+## 서비스 구성
+
+### 1. User Service
+- **포트**: 8080
+- **이미지**: acrdigitalgarage02.azurecr.io/hgzero/user-service:latest
+- **기능**: 사용자 인증 및 관리, LDAP 연동
+
+### 2. Meeting Service
+- **포트**: 8081 (HTTP), 8082 (WebSocket)
+- **이미지**: acrdigitalgarage02.azurecr.io/hgzero/meeting-service:latest
+- **기능**: 회의 관리, WebSocket 통신
+
+### 3. Notification Service
+- **포트**: 8082
+- **이미지**: acrdigitalgarage02.azurecr.io/hgzero/notification-service:latest
+- **기능**: 알림 전송, 이메일 발송
+
+## 리소스 할당
+
+각 서비스는 다음과 같은 리소스를 사용합니다:
+
+- **Requests**:
+  - CPU: 256m
+  - Memory: 256Mi
+- **Limits**:
+  - CPU: 1024m
+  - Memory: 1024Mi
+- **Replicas**: 1 (각 서비스)
+
+## 사전 요구사항
+
+1. **Azure CLI 설치**
+   ```bash
+   # macOS
+   brew install azure-cli
+
+   # Windows
+   # Download from https://aka.ms/installazurecliwindows
+
+   # Linux
+   curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
+   ```
+
+2. **kubectl 설치**
+   ```bash
+   # macOS
+   brew install kubectl
+
+   # Windows
+   # Download from https://kubernetes.io/docs/tasks/tools/install-kubectl-windows/
+
+   # Linux
+   curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+   sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
+   ```
+
+3. **Azure 로그인**
+   ```bash
+   az login
+   ```
+
+4. **ACR 로그인**
+   ```bash
+   az acr login --name acrdigitalgarage02
+   ```
+
+## 배포 파일 구조
+
+```
+deploy/k8s/backend/
+├── namespace.yaml              # 네임스페이스 정의
+├── configmap.yaml              # ConfigMap (Redis, Mail 설정)
+├── secret-template.yaml        # Secret 템플릿 (민감 정보)
+├── user-service.yaml           # User Service 배포 매니페스트
+├── meeting-service.yaml        # Meeting Service 배포 매니페스트
+├── notification-service.yaml   # Notification Service 배포 매니페스트
+├── deploy.sh                   # 배포 스크립트
+├── undeploy.sh                 # 배포 해제 스크립트
+├── create-secrets.sh           # Secret 생성 스크립트
+└── README.md                   # 이 문서
+```
+
+## 배포 절차
+
+### 1단계: AKS 클러스터 접근 설정
+
+```bash
+# AKS credentials 가져오기
+az aks get-credentials \
+  --resource-group rg-digitalgarage-02 \
+  --name aks-digitalgarage-02 \
+  --overwrite-existing
+
+# 클러스터 연결 확인
+kubectl cluster-info
+```
+
+### 2단계: 네임스페이스 생성
+
+```bash
+kubectl apply -f namespace.yaml
+```
+
+### 3단계: ConfigMap 생성
+
+```bash
+kubectl apply -f configmap.yaml
+```
+
+### 4단계: Secret 생성
+
+옵션 A: 대화형 스크립트 사용 (권장)
+```bash
+./create-secrets.sh
+```
+
+옵션 B: 직접 생성
+```bash
+# Database Secret
+kubectl create secret generic db-secret \
+  --from-literal=host=<DB_HOST> \
+  --from-literal=username=<DB_USERNAME> \
+  --from-literal=password=<DB_PASSWORD> \
+  --namespace=hgzero
+
+# Azure Secret
+kubectl create secret generic azure-secret \
+  --from-literal=eventhub-connection-string=<EVENTHUB_CONN> \
+  --from-literal=blob-connection-string=<BLOB_CONN> \
+  --namespace=hgzero
+
+# Mail Secret
+kubectl create secret generic mail-secret \
+  --from-literal=username=<MAIL_USERNAME> \
+  --from-literal=password=<MAIL_PASSWORD> \
+  --namespace=hgzero
+```
+
+### 5단계: 서비스 배포
+
+옵션 A: 자동 배포 스크립트 사용 (권장)
+```bash
+./deploy.sh
+```
+
+옵션 B: 수동 배포
+```bash
+# ACR 연동 설정
+az aks update \
+  -n aks-digitalgarage-02 \
+  -g rg-digitalgarage-02 \
+  --attach-acr acrdigitalgarage02
+
+# 서비스 배포
+kubectl apply -f user-service.yaml
+kubectl apply -f notification-service.yaml
+kubectl apply -f meeting-service.yaml
+```
+
+### 6단계: 배포 상태 확인
+
+```bash
+# Deployment 상태 확인
+kubectl get deployments -n hgzero
+
+# Pod 상태 확인
+kubectl get pods -n hgzero
+
+# Service 확인
+kubectl get services -n hgzero
+
+# 상세 정보 확인
+kubectl describe deployment user-service -n hgzero
+```
+
+## 배포 확인 및 테스트
+
+### Pod 로그 확인
+
+```bash
+# User Service 로그
+kubectl logs -f deployment/user-service -n hgzero
+
+# Meeting Service 로그
+kubectl logs -f deployment/meeting-service -n hgzero
+
+# Notification Service 로그
+kubectl logs -f deployment/notification-service -n hgzero
+```
+
+### Health Check
+
+```bash
+# User Service health check
+kubectl port-forward svc/user-service 8080:8080 -n hgzero
+curl http://localhost:8080/actuator/health
+
+# Meeting Service health check
+kubectl port-forward svc/meeting-service 8081:8081 -n hgzero
+curl http://localhost:8081/actuator/health
+
+# Notification Service health check
+kubectl port-forward svc/notification-service 8082:8082 -n hgzero
+curl http://localhost:8082/actuator/health
+```
+
+### Pod 내부 접속
+
+```bash
+# Pod 내부로 접속하여 디버깅
+kubectl exec -it deployment/user-service -n hgzero -- /bin/sh
+```
+
+## 배포 해제
+
+### 전체 서비스 삭제
+
+```bash
+./undeploy.sh
+```
+
+### 개별 서비스 삭제
+
+```bash
+kubectl delete -f user-service.yaml
+kubectl delete -f meeting-service.yaml
+kubectl delete -f notification-service.yaml
+```
+
+### Secret 및 ConfigMap 삭제
+
+```bash
+kubectl delete configmap redis-config mail-config -n hgzero
+kubectl delete secret db-secret azure-secret mail-secret -n hgzero
+```
+
+### 네임스페이스 삭제
+
+```bash
+kubectl delete namespace hgzero
+```
+
+## 트러블슈팅
+
+### Pod가 시작되지 않는 경우
+
+```bash
+# Pod 상태 확인
+kubectl get pods -n hgzero
+
+# Pod 상세 정보 확인
+kubectl describe pod <pod-name> -n hgzero
+
+# Pod 로그 확인
+kubectl logs <pod-name> -n hgzero
+
+# 이전 컨테이너 로그 확인 (재시작된 경우)
+kubectl logs <pod-name> -n hgzero --previous
+```
+
+### 이미지 Pull 오류
+
+```bash
+# ACR 연동 상태 확인
+az aks show -n aks-digitalgarage-02 -g rg-digitalgarage-02 --query "servicePrincipalProfile"
+
+# ACR 재연동
+az aks update -n aks-digitalgarage-02 -g rg-digitalgarage-02 --attach-acr acrdigitalgarage02
+
+# ImagePullSecret 확인
+kubectl get serviceaccount default -n hgzero -o yaml
+```
+
+### Secret 관련 오류
+
+```bash
+# Secret 존재 확인
+kubectl get secrets -n hgzero
+
+# Secret 내용 확인
+kubectl get secret db-secret -n hgzero -o yaml
+
+# Secret 재생성
+kubectl delete secret db-secret -n hgzero
+./create-secrets.sh
+```
+
+### 네트워크 연결 문제
+
+```bash
+# Service Endpoint 확인
+kubectl get endpoints -n hgzero
+
+# DNS 확인
+kubectl run -it --rm debug --image=busybox --restart=Never -- nslookup user-service.hgzero.svc.cluster.local
+
+# 네트워크 정책 확인
+kubectl get networkpolicies -n hgzero
+```
+
+### 리소스 부족 문제
+
+```bash
+# 노드 리소스 사용량 확인
+kubectl top nodes
+
+# Pod 리소스 사용량 확인
+kubectl top pods -n hgzero
+
+# 리소스 제한 조정 (필요 시)
+kubectl edit deployment user-service -n hgzero
+```
+
+## 업데이트 및 롤링 배포
+
+### 이미지 업데이트
+
+```bash
+# 새 이미지 태그로 업데이트
+kubectl set image deployment/user-service \
+  user-service=acrdigitalgarage02.azurecr.io/hgzero/user-service:v2.0.0 \
+  -n hgzero
+
+# 롤아웃 상태 확인
+kubectl rollout status deployment/user-service -n hgzero
+
+# 롤아웃 히스토리 확인
+kubectl rollout history deployment/user-service -n hgzero
+```
+
+### 롤백
+
+```bash
+# 이전 버전으로 롤백
+kubectl rollout undo deployment/user-service -n hgzero
+
+# 특정 revision으로 롤백
+kubectl rollout undo deployment/user-service --to-revision=2 -n hgzero
+```
+
+## 모니터링
+
+### Kubernetes Dashboard
+
+```bash
+# Dashboard 접근
+az aks browse -n aks-digitalgarage-02 -g rg-digitalgarage-02
+```
+
+### 리소스 모니터링
+
+```bash
+# 실시간 리소스 사용량 모니터링
+watch kubectl top pods -n hgzero
+
+# 이벤트 모니터링
+kubectl get events -n hgzero --sort-by='.lastTimestamp'
+```
+
+## 보안 권장사항
+
+1. **Secret 관리**
+   - Secret은 절대 Git에 커밋하지 마세요
+   - Azure Key Vault 통합을 고려하세요
+   - Secret rotation 정책을 수립하세요
+
+2. **네트워크 보안**
+   - Network Policy를 활용하여 Pod 간 통신을 제한하세요
+   - Service Mesh 도입을 고려하세요
+
+3. **이미지 보안**
+   - 정기적으로 이미지 스캔을 수행하세요
+   - 최소 권한 원칙을 적용하세요
+
+## 성능 최적화
+
+1. **Auto Scaling 설정**
+   ```bash
+   kubectl autoscale deployment user-service \
+     --cpu-percent=70 \
+     --min=1 \
+     --max=5 \
+     -n hgzero
+   ```
+
+2. **리소스 조정**
+   - 실제 사용량에 따라 requests/limits를 조정하세요
+   - HPA(Horizontal Pod Autoscaler) 설정을 고려하세요
+
+## 참고 자료
+
+- [Azure Kubernetes Service 문서](https://docs.microsoft.com/azure/aks/)
+- [Kubernetes 공식 문서](https://kubernetes.io/docs/)
+- [kubectl 치트시트](https://kubernetes.io/docs/reference/kubectl/cheatsheet/)
+
+## 지원 및 문의
+
+문제 발생 시 다음 정보를 수집하여 보고해주세요:
+
+```bash
+# 진단 정보 수집
+kubectl get all -n hgzero > hgzero-resources.txt
+kubectl describe pods -n hgzero > hgzero-pods-detail.txt
+kubectl logs deployment/user-service -n hgzero > user-service.log
+kubectl logs deployment/meeting-service -n hgzero > meeting-service.log
+kubectl logs deployment/notification-service -n hgzero > notification-service.log
+```

deploy/k8s/backend/configmap.yaml

@@ -0,0 +1,20 @@
+---
+# Redis Configuration
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: redis-config
+  namespace: hgzero
+data:
+  host: "redis-service.hgzero.svc.cluster.local"
+  port: "6379"
+---
+# Mail Configuration
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mail-config
+  namespace: hgzero
+data:
+  host: "smtp.gmail.com"
+  port: "587"

deploy/k8s/backend/create-secrets.sh

@@ -0,0 +1,103 @@
+#!/bin/bash
+
+# HGZero Backend Services Secrets Creation Script
+# This script helps create Kubernetes secrets for the backend services
+
+set -e
+
+# Color codes for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Configuration
+NAMESPACE="hgzero"
+
+echo -e "${GREEN}======================================${NC}"
+echo -e "${GREEN}HGZero Secrets Creation${NC}"
+echo -e "${GREEN}======================================${NC}"
+
+# Check if kubectl is installed
+if ! command -v kubectl &> /dev/null; then
+    echo -e "${RED}Error: kubectl is not installed${NC}"
+    exit 1
+fi
+
+# Verify connection to cluster
+echo -e "${YELLOW}Verifying connection to Kubernetes cluster...${NC}"
+if ! kubectl cluster-info &> /dev/null; then
+    echo -e "${RED}Error: Cannot connect to Kubernetes cluster${NC}"
+    exit 1
+fi
+
+# Check if namespace exists
+if ! kubectl get namespace ${NAMESPACE} &> /dev/null; then
+    echo -e "${RED}Error: Namespace '${NAMESPACE}' does not exist${NC}"
+    echo -e "${YELLOW}Please run deploy.sh first to create the namespace${NC}"
+    exit 1
+fi
+
+# Function to prompt for secret value
+prompt_secret() {
+    local prompt_text=$1
+    local secret_value
+    echo -n -e "${YELLOW}${prompt_text}: ${NC}"
+    read -s secret_value
+    echo ""
+    echo -n "$secret_value"
+}
+
+# Create Database Secret
+echo -e "${GREEN}Creating Database Secret...${NC}"
+DB_HOST=$(prompt_secret "Enter Database Host")
+DB_USERNAME=$(prompt_secret "Enter Database Username")
+DB_PASSWORD=$(prompt_secret "Enter Database Password")
+
+kubectl create secret generic db-secret \
+    --from-literal=host="${DB_HOST}" \
+    --from-literal=username="${DB_USERNAME}" \
+    --from-literal=password="${DB_PASSWORD}" \
+    --namespace=${NAMESPACE} \
+    --dry-run=client -o yaml | kubectl apply -f -
+
+echo -e "${GREEN}✓ Database secret created${NC}"
+echo ""
+
+# Create Azure Secret
+echo -e "${GREEN}Creating Azure Secret...${NC}"
+EVENTHUB_CONN=$(prompt_secret "Enter EventHub Connection String")
+BLOB_CONN=$(prompt_secret "Enter Blob Storage Connection String")
+
+kubectl create secret generic azure-secret \
+    --from-literal=eventhub-connection-string="${EVENTHUB_CONN}" \
+    --from-literal=blob-connection-string="${BLOB_CONN}" \
+    --namespace=${NAMESPACE} \
+    --dry-run=client -o yaml | kubectl apply -f -
+
+echo -e "${GREEN}✓ Azure secret created${NC}"
+echo ""
+
+# Create Mail Secret
+echo -e "${GREEN}Creating Mail Secret...${NC}"
+MAIL_USERNAME=$(prompt_secret "Enter Mail Username")
+MAIL_PASSWORD=$(prompt_secret "Enter Mail Password")
+
+kubectl create secret generic mail-secret \
+    --from-literal=username="${MAIL_USERNAME}" \
+    --from-literal=password="${MAIL_PASSWORD}" \
+    --namespace=${NAMESPACE} \
+    --dry-run=client -o yaml | kubectl apply -f -
+
+echo -e "${GREEN}✓ Mail secret created${NC}"
+echo ""
+
+# Verify secrets
+echo -e "${GREEN}======================================${NC}"
+echo -e "${GREEN}Secrets Created Successfully${NC}"
+echo -e "${GREEN}======================================${NC}"
+kubectl get secrets -n ${NAMESPACE}
+
+echo ""
+echo -e "${YELLOW}Note: Secrets are stored in Kubernetes and can be viewed with:${NC}"
+echo -e "  kubectl get secret <secret-name> -n ${NAMESPACE} -o yaml"

deploy/k8s/backend/deploy.sh

@@ -0,0 +1,133 @@
+#!/bin/bash
+
+# HGZero Backend Services Kubernetes Deployment Script
+# Azure Container Registry: acrdigitalgarage02
+# Azure Kubernetes Service: aks-digitalgarage-02
+# Namespace: hgzero
+
+set -e
+
+# Color codes for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Configuration
+ACR_NAME="acrdigitalgarage02"
+AKS_NAME="aks-digitalgarage-02"
+RESOURCE_GROUP="rg-digitalgarage-02"
+NAMESPACE="hgzero"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+echo -e "${GREEN}======================================${NC}"
+echo -e "${GREEN}HGZero Backend Services Deployment${NC}"
+echo -e "${GREEN}======================================${NC}"
+
+# Check if kubectl is installed
+if ! command -v kubectl &> /dev/null; then
+    echo -e "${RED}Error: kubectl is not installed${NC}"
+    exit 1
+fi
+
+# Check if Azure CLI is installed
+if ! command -v az &> /dev/null; then
+    echo -e "${RED}Error: Azure CLI is not installed${NC}"
+    exit 1
+fi
+
+# Login to Azure (if not already logged in)
+echo -e "${YELLOW}Checking Azure login status...${NC}"
+if ! az account show &> /dev/null; then
+    echo -e "${YELLOW}Please login to Azure...${NC}"
+    az login
+fi
+
+# Get AKS credentials
+echo -e "${YELLOW}Getting AKS credentials...${NC}"
+az aks get-credentials --resource-group ${RESOURCE_GROUP} --name ${AKS_NAME} --overwrite-existing
+
+# Verify connection to cluster
+echo -e "${YELLOW}Verifying connection to Kubernetes cluster...${NC}"
+if ! kubectl cluster-info &> /dev/null; then
+    echo -e "${RED}Error: Cannot connect to Kubernetes cluster${NC}"
+    exit 1
+fi
+echo -e "${GREEN}✓ Successfully connected to ${AKS_NAME}${NC}"
+
+# Create namespace if it doesn't exist
+echo -e "${YELLOW}Creating namespace '${NAMESPACE}'...${NC}"
+kubectl apply -f ${SCRIPT_DIR}/namespace.yaml
+echo -e "${GREEN}✓ Namespace created/verified${NC}"
+
+# Apply ConfigMaps
+echo -e "${YELLOW}Applying ConfigMaps...${NC}"
+kubectl apply -f ${SCRIPT_DIR}/configmap.yaml
+echo -e "${GREEN}✓ ConfigMaps applied${NC}"
+
+# Check if secrets exist
+echo -e "${YELLOW}Checking for secrets...${NC}"
+if ! kubectl get secret db-secret -n ${NAMESPACE} &> /dev/null || \
+   ! kubectl get secret azure-secret -n ${NAMESPACE} &> /dev/null || \
+   ! kubectl get secret mail-secret -n ${NAMESPACE} &> /dev/null; then
+    echo -e "${RED}Warning: One or more secrets are missing!${NC}"
+    echo -e "${YELLOW}Please create secrets using secret-template.yaml as reference${NC}"
+    echo -e "${YELLOW}Example:${NC}"
+    echo -e "  kubectl create secret generic db-secret -n ${NAMESPACE} \\"
+    echo -e "    --from-literal=host=<DB_HOST> \\"
+    echo -e "    --from-literal=username=<DB_USERNAME> \\"
+    echo -e "    --from-literal=password=<DB_PASSWORD>"
+    echo ""
+    read -p "Do you want to continue without secrets? (y/N): " -n 1 -r
+    echo
+    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+        echo -e "${RED}Deployment cancelled${NC}"
+        exit 1
+    fi
+fi
+
+# Configure ACR integration
+echo -e "${YELLOW}Configuring ACR integration...${NC}"
+az aks update -n ${AKS_NAME} -g ${RESOURCE_GROUP} --attach-acr ${ACR_NAME}
+echo -e "${GREEN}✓ ACR integration configured${NC}"
+
+# Deploy services
+echo -e "${YELLOW}Deploying User Service...${NC}"
+kubectl apply -f ${SCRIPT_DIR}/user-service.yaml
+echo -e "${GREEN}✓ User Service deployed${NC}"
+
+echo -e "${YELLOW}Deploying Notification Service...${NC}"
+kubectl apply -f ${SCRIPT_DIR}/notification-service.yaml
+echo -e "${GREEN}✓ Notification Service deployed${NC}"
+
+echo -e "${YELLOW}Deploying Meeting Service...${NC}"
+kubectl apply -f ${SCRIPT_DIR}/meeting-service.yaml
+echo -e "${GREEN}✓ Meeting Service deployed${NC}"
+
+# Wait for deployments to be ready
+echo -e "${YELLOW}Waiting for deployments to be ready...${NC}"
+kubectl wait --for=condition=available --timeout=300s \
+    deployment/user-service \
+    deployment/notification-service \
+    deployment/meeting-service \
+    -n ${NAMESPACE}
+
+# Show deployment status
+echo -e "${GREEN}======================================${NC}"
+echo -e "${GREEN}Deployment Status${NC}"
+echo -e "${GREEN}======================================${NC}"
+kubectl get deployments -n ${NAMESPACE}
+echo ""
+kubectl get pods -n ${NAMESPACE}
+echo ""
+kubectl get services -n ${NAMESPACE}
+
+echo -e "${GREEN}======================================${NC}"
+echo -e "${GREEN}Deployment Completed Successfully!${NC}"
+echo -e "${GREEN}======================================${NC}"
+echo ""
+echo -e "${YELLOW}Useful commands:${NC}"
+echo -e "  View logs: kubectl logs -f deployment/<service-name> -n ${NAMESPACE}"
+echo -e "  View pods: kubectl get pods -n ${NAMESPACE}"
+echo -e "  Describe pod: kubectl describe pod <pod-name> -n ${NAMESPACE}"
+echo -e "  Port forward: kubectl port-forward svc/<service-name> <local-port>:<service-port> -n ${NAMESPACE}"

deploy/k8s/backend/meeting-service.yaml

@@ -0,0 +1,112 @@
+---
+# Meeting Service Deployment
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: meeting-service
+  namespace: hgzero
+  labels:
+    app: meeting-service
+    tier: backend
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: meeting-service
+  template:
+    metadata:
+      labels:
+        app: meeting-service
+        tier: backend
+    spec:
+      containers:
+      - name: meeting-service
+        image: acrdigitalgarage02.azurecr.io/hgzero/meeting-service:latest
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8081
+          name: http
+        - containerPort: 8082
+          name: websocket
+        env:
+        - name: SPRING_PROFILES_ACTIVE
+          value: "prod"
+        - name: SERVER_PORT
+          value: "8081"
+        - name: DB_HOST
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: host
+        - name: DB_USERNAME
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: username
+        - name: DB_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: password
+        - name: REDIS_HOST
+          valueFrom:
+            configMapKeyRef:
+              name: redis-config
+              key: host
+        - name: REDIS_PORT
+          valueFrom:
+            configMapKeyRef:
+              name: redis-config
+              key: port
+        - name: AZURE_EVENTHUB_CONNECTION_STRING
+          valueFrom:
+            secretKeyRef:
+              name: azure-secret
+              key: eventhub-connection-string
+        - name: NOTIFICATION_SERVICE_URL
+          value: "http://notification-service:8082"
+        resources:
+          requests:
+            cpu: 256m
+            memory: 256Mi
+          limits:
+            cpu: 1024m
+            memory: 1024Mi
+        livenessProbe:
+          httpGet:
+            path: /actuator/health/liveness
+            port: 8081
+          initialDelaySeconds: 60
+          periodSeconds: 10
+          timeoutSeconds: 5
+          failureThreshold: 3
+        readinessProbe:
+          httpGet:
+            path: /actuator/health/readiness
+            port: 8081
+          initialDelaySeconds: 30
+          periodSeconds: 5
+          timeoutSeconds: 3
+          failureThreshold: 3
+---
+# Meeting Service Service
+apiVersion: v1
+kind: Service
+metadata:
+  name: meeting-service
+  namespace: hgzero
+  labels:
+    app: meeting-service
+spec:
+  type: ClusterIP
+  ports:
+  - port: 8081
+    targetPort: 8081
+    protocol: TCP
+    name: http
+  - port: 8082
+    targetPort: 8082
+    protocol: TCP
+    name: websocket
+  selector:
+    app: meeting-service

deploy/k8s/backend/namespace.yaml

@@ -0,0 +1,9 @@
+---
+# Namespace for HGZero application
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: hgzero
+  labels:
+    name: hgzero
+    environment: production

deploy/k8s/backend/notification-service.yaml

@@ -0,0 +1,129 @@
+---
+# Notification Service Deployment
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: notification-service
+  namespace: hgzero
+  labels:
+    app: notification-service
+    tier: backend
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: notification-service
+  template:
+    metadata:
+      labels:
+        app: notification-service
+        tier: backend
+    spec:
+      containers:
+      - name: notification-service
+        image: acrdigitalgarage02.azurecr.io/hgzero/notification-service:latest
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8082
+          name: http
+        env:
+        - name: SPRING_PROFILES_ACTIVE
+          value: "prod"
+        - name: SERVER_PORT
+          value: "8082"
+        - name: DB_HOST
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: host
+        - name: DB_USERNAME
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: username
+        - name: DB_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: password
+        - name: REDIS_HOST
+          valueFrom:
+            configMapKeyRef:
+              name: redis-config
+              key: host
+        - name: REDIS_PORT
+          valueFrom:
+            configMapKeyRef:
+              name: redis-config
+              key: port
+        - name: AZURE_EVENTHUB_CONNECTION_STRING
+          valueFrom:
+            secretKeyRef:
+              name: azure-secret
+              key: eventhub-connection-string
+        - name: AZURE_BLOB_CONNECTION_STRING
+          valueFrom:
+            secretKeyRef:
+              name: azure-secret
+              key: blob-connection-string
+        - name: MAIL_HOST
+          valueFrom:
+            configMapKeyRef:
+              name: mail-config
+              key: host
+        - name: MAIL_PORT
+          valueFrom:
+            configMapKeyRef:
+              name: mail-config
+              key: port
+        - name: MAIL_USERNAME
+          valueFrom:
+            secretKeyRef:
+              name: mail-secret
+              key: username
+        - name: MAIL_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: mail-secret
+              key: password
+        resources:
+          requests:
+            cpu: 256m
+            memory: 256Mi
+          limits:
+            cpu: 1024m
+            memory: 1024Mi
+        livenessProbe:
+          httpGet:
+            path: /actuator/health/liveness
+            port: 8082
+          initialDelaySeconds: 60
+          periodSeconds: 10
+          timeoutSeconds: 5
+          failureThreshold: 3
+        readinessProbe:
+          httpGet:
+            path: /actuator/health/readiness
+            port: 8082
+          initialDelaySeconds: 30
+          periodSeconds: 5
+          timeoutSeconds: 3
+          failureThreshold: 3
+---
+# Notification Service Service
+apiVersion: v1
+kind: Service
+metadata:
+  name: notification-service
+  namespace: hgzero
+  labels:
+    app: notification-service
+spec:
+  type: ClusterIP
+  ports:
+  - port: 8082
+    targetPort: 8082
+    protocol: TCP
+    name: http
+  selector:
+    app: notification-service

deploy/k8s/backend/secret-template.yaml

@@ -0,0 +1,36 @@
+---
+# Database Secret Template
+# Note: Replace base64 encoded values with your actual credentials
+# To encode: echo -n 'your-value' | base64
+apiVersion: v1
+kind: Secret
+metadata:
+  name: db-secret
+  namespace: hgzero
+type: Opaque
+data:
+  host: <BASE64_ENCODED_DB_HOST>
+  username: <BASE64_ENCODED_DB_USERNAME>
+  password: <BASE64_ENCODED_DB_PASSWORD>
+---
+# Azure Secret Template
+apiVersion: v1
+kind: Secret
+metadata:
+  name: azure-secret
+  namespace: hgzero
+type: Opaque
+data:
+  eventhub-connection-string: <BASE64_ENCODED_EVENTHUB_CONNECTION_STRING>
+  blob-connection-string: <BASE64_ENCODED_BLOB_CONNECTION_STRING>
+---
+# Mail Secret Template
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mail-secret
+  namespace: hgzero
+type: Opaque
+data:
+  username: <BASE64_ENCODED_MAIL_USERNAME>
+  password: <BASE64_ENCODED_MAIL_PASSWORD>

deploy/k8s/backend/undeploy.sh

@@ -0,0 +1,89 @@
+#!/bin/bash
+
+# HGZero Backend Services Kubernetes Undeployment Script
+
+set -e
+
+# Color codes for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Configuration
+NAMESPACE="hgzero"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+echo -e "${YELLOW}======================================${NC}"
+echo -e "${YELLOW}HGZero Backend Services Undeployment${NC}"
+echo -e "${YELLOW}======================================${NC}"
+
+# Check if kubectl is installed
+if ! command -v kubectl &> /dev/null; then
+    echo -e "${RED}Error: kubectl is not installed${NC}"
+    exit 1
+fi
+
+# Verify connection to cluster
+echo -e "${YELLOW}Verifying connection to Kubernetes cluster...${NC}"
+if ! kubectl cluster-info &> /dev/null; then
+    echo -e "${RED}Error: Cannot connect to Kubernetes cluster${NC}"
+    exit 1
+fi
+
+# Check if namespace exists
+if ! kubectl get namespace ${NAMESPACE} &> /dev/null; then
+    echo -e "${YELLOW}Namespace '${NAMESPACE}' does not exist. Nothing to undeploy.${NC}"
+    exit 0
+fi
+
+echo -e "${YELLOW}This will delete all services in namespace '${NAMESPACE}'${NC}"
+read -p "Are you sure you want to continue? (y/N): " -n 1 -r
+echo
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+    echo -e "${YELLOW}Undeployment cancelled${NC}"
+    exit 0
+fi
+
+# Delete services
+echo -e "${YELLOW}Deleting Meeting Service...${NC}"
+kubectl delete -f ${SCRIPT_DIR}/meeting-service.yaml --ignore-not-found=true
+echo -e "${GREEN}✓ Meeting Service deleted${NC}"
+
+echo -e "${YELLOW}Deleting Notification Service...${NC}"
+kubectl delete -f ${SCRIPT_DIR}/notification-service.yaml --ignore-not-found=true
+echo -e "${GREEN}✓ Notification Service deleted${NC}"
+
+echo -e "${YELLOW}Deleting User Service...${NC}"
+kubectl delete -f ${SCRIPT_DIR}/user-service.yaml --ignore-not-found=true
+echo -e "${GREEN}✓ User Service deleted${NC}"
+
+# Delete ConfigMaps
+echo -e "${YELLOW}Deleting ConfigMaps...${NC}"
+kubectl delete -f ${SCRIPT_DIR}/configmap.yaml --ignore-not-found=true
+echo -e "${GREEN}✓ ConfigMaps deleted${NC}"
+
+# Ask about secrets deletion
+echo ""
+echo -e "${YELLOW}Do you want to delete secrets as well?${NC}"
+echo -e "${RED}Warning: This will delete all database and Azure credentials${NC}"
+read -p "Delete secrets? (y/N): " -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    kubectl delete secret db-secret azure-secret mail-secret -n ${NAMESPACE} --ignore-not-found=true
+    echo -e "${GREEN}✓ Secrets deleted${NC}"
+fi
+
+# Ask about namespace deletion
+echo ""
+echo -e "${YELLOW}Do you want to delete the namespace '${NAMESPACE}'?${NC}"
+read -p "Delete namespace? (y/N): " -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    kubectl delete namespace ${NAMESPACE}
+    echo -e "${GREEN}✓ Namespace deleted${NC}"
+fi
+
+echo -e "${GREEN}======================================${NC}"
+echo -e "${GREEN}Undeployment Completed${NC}"
+echo -e "${GREEN}======================================${NC}"

deploy/k8s/backend/user-service.yaml

@@ -0,0 +1,102 @@
+---
+# User Service Deployment
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: user-service
+  namespace: hgzero
+  labels:
+    app: user-service
+    tier: backend
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: user-service
+  template:
+    metadata:
+      labels:
+        app: user-service
+        tier: backend
+    spec:
+      containers:
+      - name: user-service
+        image: acrdigitalgarage02.azurecr.io/hgzero/user-service:latest
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8080
+          name: http
+        env:
+        - name: SPRING_PROFILES_ACTIVE
+          value: "prod"
+        - name: DB_HOST
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: host
+        - name: DB_USERNAME
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: username
+        - name: DB_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: db-secret
+              key: password
+        - name: REDIS_HOST
+          valueFrom:
+            configMapKeyRef:
+              name: redis-config
+              key: host
+        - name: REDIS_PORT
+          valueFrom:
+            configMapKeyRef:
+              name: redis-config
+              key: port
+        - name: AZURE_EVENTHUB_CONNECTION_STRING
+          valueFrom:
+            secretKeyRef:
+              name: azure-secret
+              key: eventhub-connection-string
+        resources:
+          requests:
+            cpu: 256m
+            memory: 256Mi
+          limits:
+            cpu: 1024m
+            memory: 1024Mi
+        livenessProbe:
+          httpGet:
+            path: /actuator/health/liveness
+            port: 8080
+          initialDelaySeconds: 60
+          periodSeconds: 10
+          timeoutSeconds: 5
+          failureThreshold: 3
+        readinessProbe:
+          httpGet:
+            path: /actuator/health/readiness
+            port: 8080
+          initialDelaySeconds: 30
+          periodSeconds: 5
+          timeoutSeconds: 3
+          failureThreshold: 3
+---
+# User Service Service
+apiVersion: v1
+kind: Service
+metadata:
+  name: user-service
+  namespace: hgzero
+  labels:
+    app: user-service
+spec:
+  type: ClusterIP
+  ports:
+  - port: 8080
+    targetPort: 8080
+    protocol: TCP
+    name: http
+  selector:
+    app: user-service