diff --git a/.github/workflows/deploy-fastapi.yml b/.github/workflows/deploy-fastapi.yml
index 1fc2c615..a88c4fa3 100644
--- a/.github/workflows/deploy-fastapi.yml
+++ b/.github/workflows/deploy-fastapi.yml
@@ -29,6 +29,7 @@ jobs:
           echo "LOKI_PASSWORD=${{ secrets.LOKI_PASSWORD }}" >> .env.prod
           echo "ENV_NAME=${{ secrets.ENV_NAME }}" >> .env.prod
           echo "OPENAI_API_KEY=${{ secrets.OPENAI_API_KEY }}" >> .env.prod
+          echo "MODE=prd" >> .env.prod
 
       - name: Set repo lowercase
         run: echo "REPO_LC=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV
diff --git a/apps/pre-processing-service/Dockerfile b/apps/pre-processing-service/Dockerfile
index 69b7cacd..383ea749 100644
--- a/apps/pre-processing-service/Dockerfile
+++ b/apps/pre-processing-service/Dockerfile
@@ -32,4 +32,4 @@ COPY . .
 
 
 # (권장 대안) 코드에서 uvicorn import 안 하고 프로세스 매니저로 실행하려면:
-CMD ["gunicorn", "-k", "uvicorn.workers.UvicornWorker", "app.main:app", "-b", "0.0.0.0:8000"]
+ENTRYPOINT ["gunicorn", "-k", "uvicorn.workers.UvicornWorker", "app.main:app", "-b", "0.0.0.0:8000"]
diff --git a/apps/pre-processing-service/app/core/config.py b/apps/pre-processing-service/app/core/config.py
index 2de3833a..c6f31f49 100644
--- a/apps/pre-processing-service/app/core/config.py
+++ b/apps/pre-processing-service/app/core/config.py
@@ -82,7 +82,9 @@ class BaseSettingsConfig(BaseSettings):
     mecab_path: Optional[str] = None
 
     # Loki 설정
-    loki_host: str = "localhost"
+    loki_host: str
+    loki_username: str
+    loki_password: str
     loki_port: int = 3100
 
     # 테스트/추가용 필드
@@ -106,7 +108,7 @@ def db_url(self) -> str:
             f"@{self.db_host}:{self.db_port}/{self.db_name}"
         )
 
-    model_config = SettingsConfigDict(env_file=[".env"])
+    model_config = SettingsConfigDict(env_file=[".env"], extra="ignore")
 
 
 # 환경별 설정 클래스
diff --git a/docker/production-fastapi/promtail-config.yml b/docker/production-fastapi/promtail-config.yml
index b44fee00..170919e5 100644
--- a/docker/production-fastapi/promtail-config.yml
+++ b/docker/production-fastapi/promtail-config.yml
@@ -20,7 +20,7 @@ scrape_configs:
           __path__: /logs/production/app.log
     pipeline_stages:
       - regex:
-          expression:
+          expression: '^\[(?P<traceId>[^\]]*)\] (?P<timestamp>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3}) \| (?P<level>\w+) \| (?P<logger>[^:]+:[^:]+:\d+) \| (?P<message>.*)$'
       - labels:
           traceId:
           level:
@@ -39,7 +39,7 @@ scrape_configs:
           __path__: /logs/production/error.log
     pipeline_stages:
       - regex:
-          expression:
+          expression: '^\[(?P<traceId>[^\]]*)\] (?P<timestamp>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3}) \| (?P<level>\w+) \| (?P<logger>[^:]+:[^:]+:\d+) \| (?P<message>.*)$'
       - labels:
           traceId:
           level: