Add Dockerfile and imagePullSecrets for Harbor

- Add Dockerfile for mlops-serving image build
- Add imagePullSecrets to deployment manifest
- Gitea secrets (REGISTRY_USER, REGISTRY_PASSWORD) registered

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.10-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY src/ ./src/
+
+EXPOSE 8080
+
+CMD ["python", "-m", "src.train"]

manifests/deployment.yaml

@@ -15,6 +15,8 @@ spec:
       labels:
         app: mlops-serving
     spec:
+      imagePullSecrets:
+        - name: harbor-secret
       containers:
         - name: serving
           image: harbor.inje-private.com/mlops/mlops-serving:latest  # CI에서 자동 업데이트