nginx.tmpl

worker_processes ${{NGINX_WORKER_PROCESSES}}; # can be set by kong.conf
daemon ${{NGINX_DAEMON}};                     # can be set by kong.conf

pid pids/nginx.pid;                           # this setting is mandatory
error_log logs/error.log ${{LOG_LEVEL}};      # can be set by kong.conf

events {
  #worker_connections  1024;
}

http {
  proxy_cache_path /tmp/nginx_cache_image levels=1:2 keys_zone=image_cache:10M max_size=100M inactive=40d;

  # include default Kong Nginx config
  include 'nginx-kong.conf';

  server {
    listen 79;
    return 301 https://$host$request_uri;
  }

  server {
    listen 80;
    charset UTF-8;

    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;

    resolver 127.0.0.11;

    set $images            'image-api.gdl-local';
    set $api_gateway       '127.0.0.1:8000';

    location ~* ^/image-api/(v.*)/raw/(.*) {
      set_by_lua_block $gdl_env { return os.getenv("GDL_ENVIRONMENT") }
      set $s3_bucket        's3.eu-central-1.amazonaws.com/$gdl_env.images.gdl';
      set $url_image        'http://$images/image-api/$1/raw/$2$is_args$args';

      if ($args = '') {
        set $url_image      'https://$s3_bucket/$2?';
      }

      proxy_set_header       Referer    'gdl_proxy';
      proxy_pass             $url_image;

      proxy_cache image_cache;
      proxy_cache_key "$proxy_host$uri$is_args$args";
      proxy_cache_valid 30d;
      proxy_cache_lock on;
      proxy_cache_use_stale error invalid_header timeout updating;
      proxy_http_version 1.1;
      expires 30d;
    }

    location ~* ^/health$ {
        add_header 'Content-Length' 0;
        return 200;
    }

    location ~* ^/([^/]*) {
      proxy_set_header  Host $http_host;
      proxy_set_header  X-Real-IP $remote_addr;
      proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header  Forwarded "for=$remote_addr;proto=$http_x_forwarded_proto";
      proxy_set_header  X-Forwarded-Prefix /$1;
      proxy_pass http://$api_gateway;
    }
  }
}