failed to open grpc channel to app for ASP.NET Core gRPC service

[heavenwing]

In what area(s)?

/area runtime

/area operator
/area placement
/area docs
/area test-and-release

What version of Dapr?

version 0.9.0 commit 6babe85-dirty

Expected Behavior

Dapr runtime should connect app which be developed by ASP.NET Core gRPC service

Actual Behavior

Got error: level=warning msg="failed to open grpc channel to app: error establishing connection to app grpc on port 5001: context deadline exceeded"

And client report "app channel is not initialized"

Steps to Reproduce the Problem

I added a grpc sample into dotnet-sdk in here (https://github.com/heavenwing/dapr-dotnet-sdk/tree/grpcsample)

My sample project is "GrpcServiceSample" which use ASP.NET Core gRPC service to host grpc server.

The GrpcClient can connect this grpc sample (run with "dotnet run"), and invoke method.

But when I run GrpcServiceSample in Dapr with this command "dapr run --app-id grpcsample --app-port 5001 --protocol grpc -- dotnet run", I got above error.

And I modified DaprClient to invoke my grpc sample, it also reports error when run in Dapr with this command "dapr run --app-id client -- dotnet run"

whole log info in this log file
dapr grpc sample.log

Release Note

RELEASE NOTE: Added ability for Dapr to use a non-secure SSL connection when communicating with the app

[yaron2]

Thanks for reporting this.

Can you please try to set up a non TLS endpoint for port 5000 as outlined here?

https://auth0.com/blog/implementing-microservices-grpc-dotnet-core-3/

Then try and run Dapr with app-port 5000.

[heavenwing]

@yaron2
After disable TLS for grpc server, and run it with "dapr run --app-id grpcsample --app-port 5000 --protocol grpc -- dotnet run", it's working.
See my latest commit: heavenwing/dapr-dotnet-sdk@50809c4

But I think that it is still a bug because of unsupporting TLS.

[msfussell]

Enable Dapr to be able to call applications that have https endpoint