nginx caching reverse proxy config

Check the restream.conf file for a good-enough caching reverse proxy setup with nginx. It should just work with the default nginx that ships with most distros. It can be copied straight to /etc/nginx/nginx.conf and it should just work.

If you want to merge it with an existing nginx config, you can copy these directives to the http block:

resolver and resolver_timeout (if you plan on using a domain name for the upstream)
proxy_cache_path
upstream

And then you can copy the server block in too. If you want to merge it with an existing server, you can just copy all the proxy_ directives. Note that it'll add caching to the whole server by default, so if you don't want that, you can change proxy_cache to off, and then in the location blocks where you do the reverse proxy, set proxy_cache back to restream_cache.

Feel free to tweak the parameters to fit your needs, but generally the values in restream.conf should just work alright for caching live streams.