From d62d1aba4341938797e1e8d8175afba379844e4d Mon Sep 17 00:00:00 2001
From: heygeeji <heygeeji@gmail.com>
Date: Tue, 6 Jan 2026 01:45:38 +0900
Subject: [PATCH 1/2] =?UTF-8?q?cd:=20blue/green=20=EB=B0=B0=ED=8F=AC=20?=
 =?UTF-8?q?=EA=B8=B0=EB=B0=98=20CD=20=ED=8C=8C=EC=9D=B4=ED=94=84=EB=9D=BC?=
 =?UTF-8?q?=EC=9D=B8=20=EA=B5=AC=EC=B6=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .github/workflows/cd.yml | 73 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 .github/workflows/cd.yml

diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
new file mode 100644
index 00000000..4c89397f
--- /dev/null
+++ b/.github/workflows/cd.yml
@@ -0,0 +1,73 @@
+name: CD - Blue Green Deploy
+
+on:
+  push:
+    branches: [ release ]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      # 1. 소스 체크아웃
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # 2. Docker Hub 로그인
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      # 3. Docker 이미지 빌드 & 푸시
+      - name: Build & Push Docker Image
+        run: |
+          docker build -t heygeeji/ncb-backend:latest .
+          docker push heygeeji/ncb-backend:latest
+
+      # 4. EC2 배포 (Blue/Green + Rollback)
+      - name: Deploy to EC2
+        uses: appleboy/ssh-action@v1.0.3
+        with:
+          host: ${{ secrets.EC2_HOST }}
+          username: ec2-user
+          key: ${{ secrets.EC2_SSH_KEY }}
+          script: |
+            set -e
+            cd ~/deploy
+
+            echo "🔍 Detecting active container..."
+
+            if docker ps --filter "name=concert-spring-blue" --format "{{.Status}}" | grep -q healthy; then
+              ACTIVE=blue
+              TARGET=green
+              PORT=8082
+            else
+              ACTIVE=green
+              TARGET=blue
+              PORT=8081
+            fi
+
+            echo "🟦 Active: $ACTIVE"
+            echo "🟩 Deploy target: $TARGET"
+
+            echo "📥 Pull latest image"
+            docker compose -f docker-compose-prod.yml pull spring-$TARGET
+
+            echo "🚀 Start spring-$TARGET"
+            docker compose -f docker-compose-prod.yml up -d spring-$TARGET
+
+            echo "⏳ Waiting for health check on $PORT..."
+            for i in {1..20}; do
+              if curl -sf http://localhost:$PORT/actuator/health > /dev/null; then
+                echo "✅ spring-$TARGET is healthy"
+                exit 0
+              fi
+              echo "⏳ still waiting..."
+              sleep 5
+            done
+
+            echo "❌ Health check failed for spring-$TARGET - rolling back"
+            docker compose -f docker-compose-prod.yml stop spring-$TARGET
+            exit 1

From 53f63ccca1096c9ca1f4d030654b29ce09535d6d Mon Sep 17 00:00:00 2001
From: heygeeji <heygeeji@gmail.com>
Date: Tue, 6 Jan 2026 02:21:33 +0900
Subject: [PATCH 2/2] =?UTF-8?q?fix:=20CD=20=ED=97=AC=EC=8A=A4=EC=B2=B4?=
 =?UTF-8?q?=ED=81=AC=20=EB=A3=A8=ED=94=84=20=EC=A2=85=EB=A3=8C=20=EC=B2=98?=
 =?UTF-8?q?=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .github/workflows/cd.yml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 4c89397f..f2054a2d 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -59,14 +59,20 @@ jobs:
             docker compose -f docker-compose-prod.yml up -d spring-$TARGET
 
             echo "⏳ Waiting for health check on $PORT..."
+            HEALTHY=false
             for i in {1..20}; do
               if curl -sf http://localhost:$PORT/actuator/health > /dev/null; then
-                echo "✅ spring-$TARGET is healthy"
-                exit 0
+                HEALTHY=true
+                break
               fi
               echo "⏳ still waiting..."
               sleep 5
             done
+            
+            if [ "$HEALTHY" = "true" ]; then
+              echo "✅ spring-$TARGET is healthy"
+              exit 0
+            fi
 
             echo "❌ Health check failed for spring-$TARGET - rolling back"
             docker compose -f docker-compose-prod.yml stop spring-$TARGET