fix: Health check 전략 개선 및 curl 기반으로 변경

- Dockerfile에 curl 설치 추가 (apk add --no-cache curl)
- Health check를 wget에서 curl로 변경 (BusyBox 호환성 문제 해결)
- Health check 전략 최적화:
  * interval: 30s → 15s (더 자주 체크)
  * timeout: 10s → 5s (curl은 빠름)
  * start_period: 40s → 60s (Next.js 완전 시작 대기)
  * MAX_WAIT_TIME: 80s → 90s (workflow 대기 시간 조정)
- 동시 배포 방지 concurrency 설정 추가

Co-Authored-By: Claude (us.anthropic.claude-sonnet-4-5-20250929-v1:0) <noreply@anthropic.com>

Author: RookieAND

.github/workflows/development-deploy.yml

@@ -174,9 +174,9 @@ jobs:
 
             echo "🔍 Checking client container health..."
 
-            # Configuration: start_period=40s, interval=30s
-            # Max wait: 80s (40s grace + 30s check + 10s buffer)
-            MAX_WAIT_TIME=80
+            # Configuration: start_period=60s, interval=15s
+            # Max wait: 90s (60s grace + 15s interval * 2)
+            MAX_WAIT_TIME=90
             POLL_INTERVAL=10
             ELAPSED=0
 

.github/workflows/production-deploy.yml

@@ -174,9 +174,9 @@ jobs:
 
             echo "🔍 Checking client container health..."
 
-            # Configuration: start_period=40s, interval=30s
-            # Max wait: 80s (40s grace + 30s check + 10s buffer)
-            MAX_WAIT_TIME=80
+            # Configuration: start_period=60s, interval=15s
+            # Max wait: 90s (60s grace + 15s interval * 2)
+            MAX_WAIT_TIME=90
             POLL_INTERVAL=10
             ELAPSED=0
 

docker-compose.yml

@@ -15,11 +15,11 @@ services:
       - "name=client-dev"
       - "mode=development"
     healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3000"]
-      interval: 30s
-      timeout: 10s
+      test: ["CMD", "curl", "-f", "http://localhost:3000"]
+      interval: 15s
+      timeout: 5s
       retries: 3
-      start_period: 40s
+      start_period: 60s
 
   # Production Client
   client-prod:
@@ -37,11 +37,11 @@ services:
       - "name=client-prod"
       - "mode=production"
     healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3000"]
-      interval: 30s
-      timeout: 10s
+      test: ["CMD", "curl", "-f", "http://localhost:3000"]
+      interval: 15s
+      timeout: 5s
       retries: 3
-      start_period: 40s
+      start_period: 60s
 
   # Unified Nginx (양쪽 네트워크 모두 연결)
   nginx:

docker/client/Dockerfile

@@ -29,6 +29,9 @@ ENV NEXT_PRIVATE_STANDALONE=true
 RUN addgroup -g 1001 -S nodejs
 RUN adduser -S nextjs -u 1001
 
+# Install curl for health checks
+RUN apk add --no-cache curl
+
 COPY --from=builder /app/public ./public
 
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./