fix(documentation): try to reduce browser caching in dev

docker-compose.yml

@@ -108,7 +108,7 @@ services:
     build: ./documentation
     volumes: ["./documentation:/usr/src/app"]
     # Start a simple python folder
-    command: /bin/sh -c "python -m http.server 5000"
+    command: python run_server.py
     ports: ["5000:5000"] # replicate the server port
 
   # service to generate the UML of the backend

documentation/Dockerfile

 # Very basic Dockerfile that simply pull a python image to run a pyton server.
 
 # Pull official base image
-FROM python:3.7.2-alpine3.9
+FROM python:3.8-alpine
 
 # Set-up a workdir so that it can be mapped to a volume in docker-compose.
 WORKDIR /usr/src/app

documentation/run_server.py

+#!/usr/bin/env python
+import http.server
+
+class MyHTTPRequestHandler(http.server.SimpleHTTPRequestHandler):
+    def end_headers(self):
+        # Prevent annoying caching of the documentation
+        self.send_header("Cache-Control", "no-cache, no-store, must-revalidate")
+        self.send_header("Pragma", "no-cache")
+        self.send_header("Expires", "0")
+        http.server.SimpleHTTPRequestHandler.end_headers(self)
+
+
+if __name__ == "__main__":
+    httpd = http.server.HTTPServer(("0.0.0.0", 5000), MyHTTPRequestHandler)
+    httpd.serve_forever()