PYTHON

django setup allowed hosts

ALLOWED_HOSTS = ['*']

What is role of ALLOWED_HOSTs in Django

ALLOWED_HOSTS.-
  A list of strings representing the host/domain names that this Django site can serve. 
  This is a security measure to prevent HTTP Host header attacks,
  which are possible even under many seemingly-safe web server configurations.

allowed hosts django elb

from django.http import HttpResponse
from django.utils.deprecation import MiddlewareMixin

class HealthCheckMiddleware(MiddlewareMixin):
    def process_request(self, request):
        if request.META["PATH_INFO"] == "/ping/":
            return HttpResponse("pong")