I've combined the core nginx.conf with the proxy config, which all goes
into /etc/nginx/nginx.conf.
I've made a number of changes:
* Nginx now proxies both SQL API and Windshaft requests through Varnish.
* Nginx adds a custom HTTP header, X-Carto-Service, so that Varnish can
differentiate between backends (since it can't do so based on incoming
port).
* I've modified the primary Nginx log format to include more information
on how requests are being proxied--you can now see the upstream address
for proxied requests.
* I've added the `proxy_no_cache` and `proxy_cache_bypass` directives to
the Windshaft and SQL API proxy sections. Without those directives,
Nginx may attempt to act as a cache, returning 304 Not Modified for
resources that more accurately should be cached by Varnish (whose cache
is invalidated via a Postgres trigger for updated metadata).
Before, the Dockerfile was installing the latest bundler version, which is only compatible with Ruby >= 2.3.0. I've changed the bundler version to 1.17.3, which requires Ruby >= 1.8.7. Version info here: https://rubygems.org/gems/bundler/versions/1.17.3
Now brower error:
```
error: cdb_dataservices_client._cdb_service_quota_info(2): [cartodb_dev_user_5357a703-8b69-48d4-b114-122e9498aca7_db] REMOTE ERROR: spiexceptions.ExternalRoutineException: cartodb_services.metrics.config.ConfigException: Here maps configuration missing↵ at Connection.parseE (/CartoDB-SQL-API/node_modules/cartodb-psql/node_modules/pg/lib/connection.js:560:11)↵ at Connection.parseMessage (/CartoDB-SQL-API/node_modules/cartodb-psql/node_modules/pg/lib/connection.js:383:17)↵ at Socket.<anonymous> (/CartoDB-SQL-API/node_modules/cartodb-psql/node_modules/pg/lib/connection.js:119:22)↵ at Socket.emit (events.js:95:17)↵ at Socket.<anonymous> (_stream_readable.js:765:14)↵ at Socket.emit (events.js:92:17)↵ at emitReadable_ (_stream_readable.js:427:10)↵ at emitReadable (_stream_readable.js:423:5)↵ at readableAddChunk (_stream_readable.js:166:9)↵ at Socket.Readable.push (_stream_readable.js:128:10)↵ at TCP.onread (net.js:529:21)"
Name
```
When map without geometry is opened.
