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Dockerfile

@@ -1,5 +1,7 @@
 FROM python:3-alpine
 WORKDIR /usr/src/app
 EXPOSE 8000
+COPY requirements.txt .
+RUN pip install -qr requirements.txt
 COPY server.py .
 CMD ["python3", "./server.py"]

requirements.txt

@@ -0,0 +1,6 @@
+Click==7.0
+Flask==1.0.2
+itsdangerous==1.1.0
+Jinja2==2.10
+MarkupSafe==1.1.1
+Werkzeug==0.15.2

server.py

@@ -1,23 +1,16 @@
-from http.server import HTTPStatus, BaseHTTPRequestHandler
-from socketserver import TCPServer
+from flask import Flask
 
 PORT = 8000
-MESSAGE = "Hello, world!\n".encode("ascii")
+MESSAGE = "Hello, world!\n"
 
+app = Flask(__name__)
 
-class Handler(BaseHTTPRequestHandler):
- """Respond to requests with hello."""
 
- def do_GET(self):
- """Handle GET"""
- self.send_response(HTTPStatus.OK)
- self.send_header("Content-type", "text/plain")
- self.send_header("Content-length", len(MESSAGE))
- self.end_headers()
- self.wfile.write(MESSAGE)
+@app.route("/")
+def root():
+ result = MESSAGE.encode("utf-8")
+ return result
 
 
-print("Serving at port", PORT)
-TCPServer.allow_reuse_address = True
-httpd = TCPServer(("", PORT), Handler)
-httpd.serve_forever()
+if __name__ == "__main__":
+ app.run(debug=True, host="0.0.0.0", port=PORT)