Sonarr
- Add support for http://sonarr.tv/ in its own docker container
Frontend
- Add sonarr as a endpoint for the frontend proxy
- Don't resolve hostnames initially which fixes an longstanding issue
where nginx will crash if the other containers aren't up since their
hostnames won't be resolvable:
- Set resolver to 127.0.0.11 which is Docker's DNS for resolving
services
- Removed upstream block and declared upstream in set statements
Signed-off-by: Kelvin Chen <kelvin@kelvinchen.org>