nginx.conf

user nginx;
worker_processes auto;
pid /var/run/nginx.pid;

events {
  worker_connections 1024;
}

http {

  proxy_cache_path /tmp/nginx levels=1:2 keys_zone=cache:10m max_size=1g inactive=24h use_temp_path=off;

  proxy_buffer_size 128k;
  proxy_buffers 8 256k;
  proxy_busy_buffers_size 256k;
  client_max_body_size 100M;
  client_header_buffer_size 5120k;
  large_client_header_buffers 16 5120k;

  log_format standard_json '{ "time": "$time_local", "remote_addr": "$remote_addr", "http_x_forwarded_for": "$http_x_forwarded_for", "vhost": "$server_name", "remote_user": "$remote_user", "scheme": "$scheme", "sslinfo": "$ssl_protocol/$ssl_cipher", "request": "$request", "status": "$status", "body_bytes_sent": "$body_bytes_sent", "request_length": "$request_length", "request_time": "$request_time", "http_referer": "$http_referer", "http_user_agent": "$http_user_agent" }';

  access_log /dev/stdout standard_json;
  error_log /dev/stdout;

  upstream kibana {
    server 127.0.0.1:5601;
  }

  # Should force mappings request to include fields=title
  server {
    listen 8080 default_server;

    # general proxy cache settings
    proxy_cache cache;
    proxy_cache_methods GET;
    proxy_cache_lock on;

    # have nginx cache static assets
    location ~* \.(jpeg|jpg|png|css|js|woff2|svg)$ {
      expires 1h;
      add_header cache-control "public";
      proxy_cache_valid 200 1h;
      proxy_cache_use_stale error updating timeout http_503 http_502 http_504 http_500;
      proxy_ignore_headers cache-control;
      proxy_hide_header cache-control;
      more_set_headers "X-Cache-Status: $upstream_cache_status";
      more_clear_input_headers "cache-control";
      proxy_pass http://kibana;
    }

    # pain ahead, makes index-patterns only return titles also cached
    # could try the expires/cache-control=public ordeal here
    location /api/saved_objects/_find {
      expires 1m;
      set_by_lua_block $skip_cache {
        local args = ngx.req.get_uri_args()
        if args["type"] == "index-pattern" then
          args.fields = "title"
          ngx.req.set_uri_args(args)
        else
          return "true"
        end
      }

      proxy_cache_bypass $skip_cache;
      proxy_cache_valid 200 1m;
      proxy_cache_use_stale updating timeout http_503 http_502 http_504 http_500;
      proxy_pass http://kibana;
      more_clear_input_headers "cache-control";
      proxy_ignore_headers cache-control;
      proxy_hide_header cache-control;
      more_set_headers "X-Cache-Status: $upstream_cache_status" "X-Skip-Cache: $skip_cache";
    }

    location / {
      proxy_pass http://kibana;
    }
  }
}