xdsresolver uses ldsResourceName instead of using data plane authority about grpc-go HOT 2 CLOSED

This is the code that handles it

from grpc-go.

per @markdroth

You should not be using the LDS resource name to match the virtual host name. You should be using the data plane authority.

If the gRPC channel is created with target URI xds://whatever/server.example.com, then the data plane authority is server.example.com, regardless of what LDS resource name is constructed via the bootstrap file.

A47 also agrees with the same:

Note that the authority used for the data plane connections (which is also used to select the VirtualHost within the xDS RouteConfiguration) will continue to be the last path component of the xds URI used to create the gRPC channel (i.e., the part following the last / character, or the entire path if the path contains no / character).

from grpc-go.