Question
Why does Django on App platform give a 400 response to Health Check but is fine otherwise?
- Posted on September 18, 2023
- DigitalOcean App PlatformDjango
Asked by timjdavey
As the title says, deploys great with Health Check set to TCP, whole service works fine. But if Health Check is set to HTTP on / then gunicorn core.wsgi:application gives 400.
My guess is it’s an ALLOWED_HOSTS issue. In the environment variables, it’s set to 127.0.0.1,localhost,<domain of app> which works when deployed. But if Health Check is hitting a different domain, my guess is this won’t work?
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Update, doing it with
DEBUG=TrueI getdjango.core.exceptions.DisallowedHost: Invalid HTTP_HOST header: '10.244.4.235:8080'. i.e. it’s hitting it from the IP of that dynamic instance. How do you get access to this IP so it can be added to the allowed hosts? gunicorn is running on 0.0.0.0:8080 so should allow internal IPs. I’ve tried most of the standard environmental variables but no joy.I’m not keen on relying on TCP as a health check. If this doesn’t work I’m moving back to render which seems to work magically out of the box for everything.