#user  nobody;
worker_processes  1;

# This default error log path is compiled-in to make sure configuration parsing
# errors are logged somewhere, especially during unattended boot when stderr
# isn't normally logged anywhere. This path will be touched on every nginx
# start regardless of error log location configured here. See
# https://trac.nginx.org/nginx/ticket/147 for more info. 
#
#error_log  /var/log/nginx/error.log;
#

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    map $http_upgrade $connection_upgrade {
        default upgrade;
        ''      close;
    }

    upstream backend {
        server 127.0.0.1:3000 fail_timeout=0;
    }

    upstream streaming {
        server 127.0.0.1:4000 fail_timeout=0;
    }

    proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=CACHE:10m inactive=7d max_size=1g;

    server {
      listen 80;
      server_name $HOSTNAME;

      keepalive_timeout    70;
      sendfile             on;
      client_max_body_size 80m;

      root /home/mastodon/live/public;

      gzip on;
      gzip_disable "msie6";
      gzip_vary on;
      gzip_proxied any;
      gzip_comp_level 6;
      gzip_buffers 16 8k;
      gzip_http_version 1.1;
      gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml image/x-icon;

      add_header Strict-Transport-Security "max-age=31536000" always;

      location / {
        try_files $uri @proxy;
      }

      location ~ ^/(emoji|packs|system/accounts/avatars|system/media_attachments/files) {
        add_header Cache-Control "public, max-age=31536000, immutable";
        add_header Strict-Transport-Security "max-age=31536000" always;
        try_files $uri @proxy;
      }

      location /sw.js {
        add_header Cache-Control "public, max-age=0";
        add_header Strict-Transport-Security "max-age=31536000" always;
        try_files $uri @proxy;
      }

      location @proxy {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $http_x_real_ip;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
        proxy_set_header Proxy "";
        proxy_pass_header Server;

        proxy_pass http://backend;
        proxy_buffering on;
        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        proxy_cache CACHE;
        proxy_cache_valid 200 7d;
        proxy_cache_valid 410 24h;
        proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
        add_header X-Cached $upstream_cache_status;
        add_header Strict-Transport-Security "max-age=31536000" always;

        tcp_nodelay on;
      }

      location /api/v1/streaming {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $http_x_real_ip;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
        proxy_set_header Proxy "";

        proxy_pass http://streaming;
        proxy_buffering off;
        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        tcp_nodelay on;
      }

      error_page 500 501 502 503 504 /500.html;
    }
}