init

Dockerfile

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+FROM python:3.11-slim
+
+# Metadata
+LABEL maintainer="your-email@example.com"
+LABEL description="Domain-specific email worker for SMTP delivery"
+
+# Non-root user für Security
+RUN useradd -m -u 1000 worker && \
+    mkdir -p /app && \
+    chown -R worker:worker /app
+
+# Boto3 installieren
+RUN pip install --no-cache-dir boto3
+
+# Worker Code
+COPY --chown=worker:worker worker.py /app/worker.py
+
+WORKDIR /app
+USER worker
+
+# Healthcheck
+HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
+  CMD pgrep -f worker.py || exit 1
+
+# Start worker mit unbuffered output
+CMD ["python", "-u", "worker.py"]