The intent is to configure oauth2_proxy pointing at Keycloak to enable
usage with nginx auth_request directives.
I want to expose this as a function from within the module in which
nginx server configuration blocks can be wrapped, but the function for
that is currently a placeholder.
Change-Id: I5ed7deb9bf1c62818f516e68c33e8c5b632fccfe
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4767
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>