백엔드 서비스 Kubernetes 배포 매니페스트 작성 완료

- 공통 매니페스트: Image Pull Secret, Ingress, ConfigMap, Secret
- 서비스별 매니페스트: user-service, bill-service, product-service, api-gateway, kos-mock
- 환경변수 매핑 테이블 작성 및 검증 완료
- 배포 가이드 및 트러블슈팅 문서 포함

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

deployment/k8s/bill-service/cm-bill-service.yaml

@@ -0,0 +1,25 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm-bill-service
+  namespace: phonebill-dev
+data:
+  SERVER_PORT: "8082"
+  DB_CONNECTION_TIMEOUT: "30000"
+  DB_IDLE_TIMEOUT: "600000"
+  DB_KIND: "postgresql"
+  DB_LEAK_DETECTION: "60000"
+  DB_MAX_LIFETIME: "1800000"
+  DB_MAX_POOL: "20"
+  DB_MIN_IDLE: "5"
+  DB_NAME: "bill_inquiry_db"
+  DB_PORT: "5432"
+  DB_USERNAME: "bill_inquiry_user"
+  KOS_BASE_URL: "http://kos-mock:80"
+  LOG_FILE_NAME: "logs/bill-service.log"
+  REDIS_DATABASE: "1"
+  REDIS_MAX_ACTIVE: "8"
+  REDIS_MAX_IDLE: "8"
+  REDIS_MAX_WAIT: "-1"
+  REDIS_MIN_IDLE: "0"
+  REDIS_TIMEOUT: "2000"