inject extra details to Bazel RBE links

tools/internal_ci/linux/grpc_bazel_on_foundry_base.sh

@@ -44,6 +44,7 @@ bazel \
   --bazelrc=tools/remote_build/kokoro.bazelrc \
   test \
   --invocation_id="${BAZEL_INVOCATION_ID}" \
+  --workspace_status_command=tools/remote_build/workspace_status_kokoro.sh \
   $@ \
   -- //test/... || FAILED="true"
 

tools/remote_build/workspace_status_kokoro.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Copyright 2018 The gRPC Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Adds additional labels to results page for Bazel RBE builds on Kokoro
+
+# Provide a way to go from Bazel RBE links back to Kokoro job results
+# which is important for debugging test infrastructure problems.
+# TODO(jtattermusch): replace this workaround by something more user-friendly.
+echo "KOKORO_RESULTSTORE_URL https://source.cloud.google.com/results/invocations/${KOKORO_BUILD_ID}"
+echo "KOKORO_SPONGE_URL http://sponge.corp.google.com/${KOKORO_BUILD_ID}"
+
+echo "KOKORO_BUILD_NUMBER ${KOKORO_BUILD_NUMBER}"
+echo "KOKORO_JOB_NAME ${KOKORO_JOB_NAME}"
+echo "KOKORO_GITHUB_COMMIT ${KOKORO_GITHUB_COMMIT}"