L7 - HTTP

1. HTTP Simple Webserver (python)

코드

# HttpWebserver.py
 
from http.server import HTTPServer, BaseHTTPRequestHandler
 
 
class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        # 1. First, set the response status code
        self.send_response(200)
 
        # 2. Set the response headers
        self.send_header('Content-Type', 'text/plain; charset=utf-8')
        self.send_header('Content-Length', '5')
        self.end_headers()
 
        # 3. Send the response body
        self.wfile.write(b"Hello")
 
    def log_message(self, format, *args):
        """Override to provide more detailed logging of requests"""
        message = f"""
----- Incoming Request -----
Path: {self.path}
Method: {self.command}
Headers: {self.headers}
Client Address: {self.client_address}
Server Version: {self.server_version}
Protocol Version: {self.protocol_version} 
--------------------------
"""
        print(message)
 
 
def run_server(host='0.0.0.0', port=8080):
    server_address = (host, port)
    httpd = HTTPServer(server_address, SimpleHTTPRequestHandler)
    print(f"Starting server on {host}:{port}")
    httpd.serve_forever()
 
 
if __name__ == '__main__':
    run_server()

 

실행 방법

python HttpWebserver.py

 

HTTP 요청 테스트 (cURL)

curl localhost:8080 -v

(좌) cURL 요청 / (우) 서버

 

AWS ALB로 부터 반환되는 502 bad gateway 에러 트러블슈팅

 

https://devocean.sk.com/blog/techBoardDetail.do?ID=165428&boardType=techBlog