new-subdomain-redirect.md

How to add a new subdomain redirection?

Say you want to have sparkle.djangogirls.org redirect to https://https://en.wikipedia.org/wiki/Sparkle.

Step 1: Create a webapp on PythonAnywhere

• Log in to PythonAnywhere, go to the Web tab and click on "Add a new web app"
• For the domain, use "sparkle.djangogirls.org"
• Choose Python 3.4 (it doesn't actually matter)
• Choose a manual installation
• Edit the WSGI file, delete everything and put in (replace url accordingly):

    def application(environ, start_response):
        url = 'https://https://en.wikipedia.org/wiki/Sparkle'
        response_headers = [('Location', url)]
        start_response('301 Moved Permanently', response_headers)
        yield 'We moved to %s' % url

• Save the WSGI file then reload the app (green button)
• Write down the CNAME of the app (something like "webapp-12345.pythonanywhere.com")

Step 2: Add a CNAME record in the DNS

• Log in to CloudFlare, go to the DNS tab and add a new CNAME record:
  • Type: CNAME
  • Name: sparkle
  • Domain Name: webapp-12345.pythonanywhere.com

Step 3: Enjoy the redirection

That's it! 🎉

It should work now, though you might have to wait a bit for DNS to propagate.