feat(monitor): precisely exclude Loki, Grafana, and Prometheus while keeping promtail and blackbox-exporter

docs/external_healthcheck_monitoring_design.md

@@ -97,10 +97,11 @@ services:
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
       - /var/lib/docker/containers:/var/lib/docker/containers:ro
-      - ./promtail-config.staging.template.yaml:/etc/promtail/promtail-config.yaml:ro
-    command: -config.file=/etc/promtail/promtail-config.yaml
+      - ./docker/promtail-config.template.yaml:/etc/promtail/promtail-config.yaml:ro
+    command: -config.file=/etc/promtail/promtail-config.yaml -config.expand-env=true
     environment:
       - LOKI_URL=${LOKI_URL:-http://loki:3100/loki/api/v1/push}
+      - APP_ENV=${APP_ENV:-development}
     networks:
       - baron_net
 
@@ -110,11 +111,11 @@ networks:
     name: baron_net
 ```
 
-### 3.2 `promtail-config.staging.template.yaml` 설정 사양
+### 3.2 `promtail-config.template.yaml` 설정 사양
 수집기가 도커 소켓을 읽어 컨테이너명을 자동으로 식별하고, Baron SSO 관련 로그만 선별하여 라벨을 붙인 후 Loki로 전송합니다.
 
 ```yaml
-# docker/promtail-config.staging.template.yaml
+# docker/promtail-config.template.yaml
 
 server:
   http_listen_port: 9080
@@ -146,9 +147,9 @@ scrape_configs:
       - source_labels: ['container_name']
         regex: 'baron_(.*)'
         target_label: 'job'
-      # 정적 라벨 추가
+      # 동적 라벨 추가
       - target_label: 'app_env'
-        replacement: 'stage'
+        replacement: '${APP_ENV:-development}'
 ```
 
 ---