Add Dockerfile for application containerization

Dockerfile

@@ -0,0 +1,13 @@
+FROM alpine:3.23
+
+RUN apk add --no-cache python3 py3-pip
+RUN pip3 install --break-system-packages flask flask-httpauth gunicorn requests jmespath
+# Clean up apk cache
+RUN rm -rf /var/cache/apk/*
+
+WORKDIR /app
+COPY app.py /app/app.py
+
+EXPOSE 8080
+
+CMD ["gunicorn", "--bind", "0.0.0.0:8080", "app:app"]