Can't use routes with $ in the name

[cooperka]

The Microsoft OData specification requires a route called /$metadata that returns XML. In order to do this I tried to configure a route "/$metadata": "metadata.xml" but I get the following error:

2020-01-31T00:40:31.399282+00:00 app[web.1]: Starting nginx...
2020-01-31T00:40:31.422474+00:00 app[web.1]: nginx: [emerg] unknown "metadata" variable
2020-01-31T00:40:31.426489+00:00 app[web.1]: Process exited unexpectedly: nginx
2020-01-31T00:40:31.427292+00:00 app[web.1]: Going down, terminating child processes...
2020-01-31T00:40:31.480399+00:00 heroku[web.1]: Process exited with status 1
2020-01-31T00:40:32.345844+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/$metadata" host=foo.herokuapp.com status=503 bytes= protocol=https

I tried escaping the $ several ways and was unsuccessful.

Successful workaround, though not ideal, is to replace the $ with a *: "/*metadata": "metadata.xml"

[edmorley]

Hi

This buildpack is now deprecated and we are recommending people move the more actively maintained heroku-buildpack-nginx. For migration advice see here.

As such, I'm closing this issue out since we won't be making further changes to this buildpack.