vendor directory for grpc seems incomplete - go get etcd fails without go modules

[dfawley]

$ go get go.etcd.io/etcd
/usr/local/google/home/dfawley/go/src/go.etcd.io/etcd/vendor/google.golang.org/grpc/balancer_conn_wrappers.go:28:2: use of internal package not allowed
/usr/local/google/home/dfawley/go/src/go.etcd.io/etcd/vendor/google.golang.org/grpc/clientconn.go:49:2: use of internal package not allowed
/usr/local/google/home/dfawley/go/src/go.etcd.io/etcd/vendor/google.golang.org/grpc/clientconn.go:50:2: use of internal package not allowed

I believe this is happening because grpc was updated to a new version recently, but some files were omitted from new directories, e.g. grpc/internal/buffer and grpc/internal/resolver/{dns,passthrough}.

[dfawley]

Note that you will also need to set GO111MODULE=off to reproduce this issue if using a recent version of go.

[spzala]

@dfawley thanks for reporting! We have couple of other similar issues reported around it and briefly discussed it there like #11532 We should have it resolved soon.

[dfawley]

Thanks for following up. Looks like this is indeed a dupe of #11532, so I'll close this one.

[spzala]

@dfawley you are welcome, and thanks for closing it!

[spzala]

@dfawley fyi, this should be fixed under #11557 Thanks!