debug build and enable logs

Author: yashykt

tools/dockerfile/interoptest/grpc_interop_cxx_xds/Dockerfile.xds_client

@@ -24,7 +24,7 @@ RUN ln -s /usr/bin/python3 /usr/bin/python
 RUN mkdir /artifacts
 
 COPY . .
-RUN tools/bazel build //test/cpp/interop:xds_interop_client
+RUN tools/bazel build -c dbg //test/cpp/interop:xds_interop_client
 RUN cp -rL /workdir/bazel-bin/test/cpp/interop/xds_interop_client /artifacts/
 
 ENV TINI_VERSION v0.19.0
@@ -46,4 +46,4 @@ COPY --from=0 /artifacts ./
 # tini serves as PID 1 and enables the server to properly respond to signals.
 COPY --from=0 /tini /tini
 
-ENTRYPOINT ["/tini", "-g", "-vv",  "--",  "/xds_interop_client"]
+ENTRYPOINT ["/tini", "-g", "-vv",  "--",  "/xds_interop_client", "--log_rpc_start_and_end"]