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diff --git a/mqtt_client/Dockerfile b/mqtt_client/Dockerfile
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+++ b/mqtt_client/Dockerfile
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+FROM python:3.14-slim
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /mqtt-client
+
+RUN useradd \
+	--shell /sbin/nologin \
+	--uid 10001 \
+	--no-create-home \
+	mqtt-client-usr
+
+COPY requirements.txt .
+
+RUN python -m pip install -r requirements.txt
+
+USER mqtt-client-usr
+
+COPY . .
+
+CMD ["python3", "main.py"]