first code release: Flask app

app/Dockerfile

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+FROM debian:12-slim
+RUN apt update
+RUN apt install -y \
+    python3 \
+    python3-pip \
+    python3-flask
+RUN mkdir -p /app
+COPY app.py /app
+WORKDIR /app
+EXPOSE 5000
+ENTRYPOINT ["python3"]
+CMD ["app.py"]

app/app.py

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+from flask import Flask
+import os
+
+app = Flask(__name__)
+
+@app.route("/")
+def hello():
+    return "CyberHackademy 2023 inside a docker container!"
+
+
+if __name__ == "__main__":
+    port = int(os.environ.get("PORT", 5000))
+    app.run(debug=True,host='0.0.0.0',port=port)