Updates the Go dockerfile to reflect the package restructuring.

- also corrects an error in the Go client test command

tools/dockerfile/grpc_go/Dockerfile

@@ -17,11 +17,11 @@ RUN echo 'StrictHostKeyChecking no' >> $HOME/.ssh/config
 RUN git config --global url."git@github.com:".insteadOf "https://github.com/"
 
 # Get the source from GitHub
-RUN go get github.com/google/grpc-go
+RUN go get github.com/google/grpc-go/rpc
 
 # Build the interop client and server
-RUN cd src/github.com/google/grpc-go/interop/client && go install
-RUN cd src/github.com/google/grpc-go/interop/server && go install
+RUN cd src/github.com/google/grpc-go/rpc/interop/client && go install
+RUN cd src/github.com/google/grpc-go/rpc/interop/server && go install
 
 # Specify the default command such that the interop server runs on its known testing port
-CMD ["/bin/bash", "-c 'cd src/github.com/google/grpc-go/interop/server && go run server.go --use_tls=true --port=8020'"]
+CMD ["/bin/bash", "-c", "cd src/github.com/google/grpc-go/rpc/interop/server && go run server.go --use_tls=true --port=8020"]

tools/gce_setup/grpc_docker.sh

@@ -640,10 +640,11 @@ grpc_interop_gen_ruby_cmd() {
 #   flags= .... # generic flags to include the command
 #   cmd=$($grpc_gen_test_cmd $flags)
 grpc_interop_gen_go_cmd() {
-  local cmd_prefix="sudo docker run grpc/go bin/bash -c";
-  local test_script="cd /go/src/github.com/google/grpc-go/interop/client";
-  local test_script+=" && go run client.go --use_tls=true";
-  local the_cmd="$cmd_prefix '$test_script $@ 1>&2'";
+  local cmd_prefix="sudo docker run grpc/go /bin/bash -c"
+  local test_script="cd /go/src/github.com/google/grpc-go/rpc/interop/client"
+  local test_script+=" && go run client.go --use_tls=true"
+  local the_cmd="$cmd_prefix '$test_script $@'"
+  echo $the_cmd
 }
 
 # constructs the full dockerized java interop test cmd.