Adding the tools directory to the git export.
diff --git a/tools/dockerfile/grpc_java/Dockerfile b/tools/dockerfile/grpc_java/Dockerfile
new file mode 100644
index 0000000..f7156c7
--- /dev/null
+++ b/tools/dockerfile/grpc_java/Dockerfile
@@ -0,0 +1,16 @@
+# Dockerfile for the gRPC Java dev image
+FROM grpc/java_base
+
+# Start the daemon that allows access to private git-on-borg repos
+RUN /var/local/git/gcompute-tools/git-cookie-authdaemon
+
+RUN cd /var/local/git/grpc-java/lib/okhttp && \
+ mvn -pl okhttp -am install
+RUN cd /var/local/git/grpc-java/lib/netty && \
+ mvn -pl codec-http2 -am -DskipTests install
+RUN cd /var/local/git/grpc-java && \
+ protoc --version>ver.txt && \
+ mvn install
+
+# Specify the default command such that the interop server runs on its known testing port
+CMD ["/var/local/git/grpc-java/run-test-server.sh", "--transport=NETTY_TLS", "--grpc_version=2", "--port=8030"]