Provide custom sponge configs to exclude manual runs from testgrid (#26283)

* Provide custom sponge configs

* Correct the script

* Allow test scripts to produce artifacts through Docker

* Overcome the direcotry clone in our docker script

* Expose TESTGRID_EXCLUDE and GIT_ORIGIN_URL through docker run

* Make sanity tests happy

tools/run_tests/dockerize/build_and_run_docker.sh

@@ -58,7 +58,12 @@ docker run \
   -e "KOKORO_BUILD_NUMBER=$KOKORO_BUILD_NUMBER" \
   -e "KOKORO_BUILD_URL=$KOKORO_BUILD_URL" \
   -e "KOKORO_JOB_NAME=$KOKORO_JOB_NAME" \
+  -e "KOKORO_ARTIFACTS_DIR=$KOKORO_ARTIFACTS_DIR" \
+  -e "GIT_ORIGIN_URL=$(git -C $git_root remote get-url origin)" \
+  -e "GIT_COMMIT_SHORT=$(git -C $git_root rev-parse --short HEAD)" \
+  -e "TESTGRID_EXCLUDE=$TESTGRID_EXCLUDE" \
   -v "$git_root:/var/local/jenkins/grpc:ro" \
+  -v "$KOKORO_ARTIFACTS_DIR:$KOKORO_ARTIFACTS_DIR" \
   -w /var/local/git/grpc \
   --name="$CONTAINER_NAME" \
   $EXTRA_DOCKER_ARGS \

tools/run_tests/run_xds_tests.py

@@ -2238,6 +2238,31 @@ def test_csds(gcp, original_backend_service, instance_group, server_uri):
                        test_csds_timeout_s)
 
 
+def maybe_write_sponge_properties():
+    """Writing test infos to enable more advanced testgrid searches."""
+    if 'KOKORO_ARTIFACTS_DIR' not in os.environ:
+        return
+    if 'GIT_ORIGIN_URL' not in os.environ:
+        return
+    if 'GIT_COMMIT_SHORT' not in os.environ:
+        return
+    properties = [
+        # Technically, 'TESTS_FORMAT_VERSION' is not required for run_xds_tests.
+        # We keep it here so one day we may merge the process of writing sponge
+        # properties.
+        'TESTS_FORMAT_VERSION,2',
+        'TESTGRID_EXCLUDE,%s' % os.environ.get('TESTGRID_EXCLUDE', 0),
+        'GIT_ORIGIN_URL,%s' % os.environ['GIT_ORIGIN_URL'],
+        'GIT_COMMIT_SHORT,%s' % os.environ['GIT_COMMIT_SHORT'],
+    ]
+    logger.info('Writing Sponge configs: %s', properties)
+    with open(
+            os.path.join(os.environ['KOKORO_ARTIFACTS_DIR'],
+                         "custom_sponge_config.csv"), 'w') as f:
+        f.write("\n".join(properties))
+        f.write("\n")
+
+
 def set_validate_for_proxyless(gcp, validate_for_proxyless):
     if not gcp.alpha_compute:
         logger.debug(
@@ -2954,6 +2979,7 @@ class GcpState(object):
         self.instance_groups = []
 
 
+maybe_write_sponge_properties()
 alpha_compute = None
 if args.compute_discovery_document:
     with open(args.compute_discovery_document, 'r') as discovery_doc: