# Sample configuration for HLS stream cache server
# Ref: https://docs.peer5.com/guides/use-nginx-as-wowza-cache/

worker_processes auto;
events {
  worker_connections 16384;
  multi_accept on;
  use epoll;
}

error_log /dev/stderr;

http {
  # Basic settings
  sendfile on;
  tcp_nopush on;
  tcp_nodelay on;
  server_tokens off;
  keepalive_timeout 300s;
  types_hash_max_size 2048;
  include ./nginx/conf/mime.types;
  default_type application/octet-stream;

  # Logging settings
  access_log /dev/stdout;

  # Set DNS resolver
  resolver 1.1.1.1 8.8.8.8 valid=300s ipv6=off;
  resolver_timeout 10s;

  # TODO: Update cache path to your cache directory
  proxy_cache_path
    # cache directory (e.g. /var/cache/nginx/proxy_cache)
    cache
    use_temp_path=off
    # the name of the cache, if you change this
    # you have to update the proxy_cache directive below
    keys_zone=restream_cache:10m
    # maximum size of the cache, feel free to tune it
    max_size=20g
    inactive=10m;

  upstream restream {
    # TODO: Add your upstream here. For HTTP-only
    # upstreams, omit the :443, and change the
    # https:// to http:// in the proxy_pass directive.
    server restream.dev:443;
  }

  # Server configuration
  server {
    # Example SSL config
    # listen       443 ssl;
    # listen       [::]:443 ssl;
    # server_name  example.com;
    # ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    # ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;

    # Or for non-SSL
    listen       8080;
    listen       [::]:8080;
    server_name  _; # TODO: change with your domain name

    proxy_redirect off;
    proxy_http_version 1.1;
    proxy_read_timeout 10s;
    proxy_send_timeout 10s;
    proxy_connect_timeout 10s;
    proxy_cache restream_cache;
    proxy_cache_methods GET HEAD;
    proxy_cache_key $uri;
    proxy_cache_valid 200 302 5m;
    proxy_cache_valid 404 3s;
    proxy_cache_lock on;
    proxy_cache_lock_age 5s;
    proxy_cache_lock_timeout 1h;
    proxy_ignore_headers Cache-Control;
    proxy_ignore_headers Set-Cookie;

    # Optional: Add your custom headers here
    add_header X-Edge-Cache-Status $upstream_cache_status;
    add_header X-Edge-Region us-east;
    add_header X-Edge-Server my-server;

    location ~ \.(m3u8|mpd)$ {
      proxy_cache_valid 200 302 1s;
      proxy_pass https://restream;
    }

    location / {
      proxy_pass https://restream;
    }
  }

  # Optional: redirect all requests to https
  # server {
  #   listen       80;
  #   listen       [::]:80;
  #   server_name  _;

  #   return 307 https://$server_name$request_uri;
  # }
}