nginx.conf

env PATH;
worker_processes ${{NUM_WORKERS}};
error_log ${{NOTICE_LOG}} notice;
daemon ${{DAEMON}};

events {
  worker_connections 1024;
}

http {
  include mime.types;

  lua_shared_dict community_view_counters 5m;

  proxy_cache_path ${{IMAGE_CACHE_PATH}} levels=1:2 keys_zone=image_cache:100m max_size=15g inactive=100d use_temp_path=off;

  log_format image_log '[$time_local] $request_time $request_uri - $image_log';

  init_worker_by_lua_file "jobs/flush_counters.lua";

  resolver ${{RESOLVER}};
  resolver_timeout 4;

  map $http_user_agent $is_crawler {
    default 0;
    "~*crawl|Googlebot|Slurp|bingbot|Ahrefs|Yandex|ia_archiver|Applebot|ysearch|Baiduspider|Exabot|SemrushBot|SMTBot|facebookexternalhit|MegaIndex|PetalBot" 1;
  }

  init_by_lua_block {
    require "lpeg"
    require "socket"
    require "ltn12"
    require "mime"
  }

  server {
    listen ${{PORT}};
    lua_code_cache ${{CODE_CACHE}};

    include nginx/http_proxy.conf;

    location / {
      set $_url "";

      if ($request_method = OPTIONS) {
        add_header Content-Length 0;
        add_header Content-Type text/plain;
        access_log off;
        return 200;
      }

      default_type text/html;

      rewrite_by_lua '
        require("helpers.referrers").set_register_referrer_nginx()
      ';

      content_by_lua '
        require("lapis").serve("app")
      ';
    }

    location ~ ^/img/.*\.([a-z_]*)$ {
      proxy_pass http://127.0.0.1:${{PORT}};
      proxy_set_header Host streak-images.local;

      proxy_cache image_cache;
      proxy_cache_valid 200 365d;
      proxy_cache_valid 404 1m;

      proxy_cache_key "$scheme$proxy_host$uri";
      proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
      proxy_cache_lock on;

      add_header X-Cache-Status $upstream_cache_status;
      expires max;

      proxy_ignore_headers Cache-Control;
    }

    location ~ ^/uploads/receive/(?<upload_id>\d+)$ {
      client_max_body_size 20m;
      content_by_lua_file 'handle_upload.lua';
    }

    location /static/ {
      alias static/;
      access_log off;
      gzip on;
      gzip_types application/x-javascript text/css image/svg+xml;
      expires 3d;
      gzip_comp_level 5;
    }

    location /favicon.ico {
      alias static/favicon.ico;
      access_log off;
    }

    location /download/ {
      rewrite_by_lua_file "handle_download.lua";
      alias user_content/uploads/;
    }

    location = /robots.txt {
      access_log off;
      alias static/robots.txt;
    }
  }

  # www redirect server
  server {
    listen ${{PORT}};
    server_name www.streak.club;

    location / {
      if ($http_host ~ ^www\.(?<domain>.*)$) {
        rewrite ^ http://$domain$request_uri permanent;
      }
    }
  }

  server {
    listen ${{PORT}};
    server_name streak-images.local;
    lua_code_cache ${{CODE_CACHE}};

    include nginx/http_proxy.conf;

    allow 127.0.0.1;
    deny all;

    location ~ ^/img/.*\.([a-z_]*)$ {
      set $_url "";
      set $image_log "";

      default_type text/html;
      content_by_lua 'require("lapis").serve("applications.images")';
      access_log logs/image_log.log image_log;
    }
  }

}

# vim: set expandtab ts=2 sw=2 ft=nginx: