test(spanner): fix flaky TestIntegration_StartBackupOperation test
Fixes
@@ -44,6 +44,11 @@ export GCLOUD_TESTS_BIGTABLE_KEYRING=projects/dulcet-port-762/locations/us-centr
export GCLOUD_TESTS_BIGTABLE_CLUSTER="gc-bt-it-cluster"
export GCLOUD_TESTS_BIGTABLE_INSTANCE="gc-bt-it-instance"
+# TODO: Remove this env after OMG/43748 is fixed
+# Spanner integration tests for backup/restore is flaky https://github.com/googleapis/google-cloud-go/issues/5037
+# to fix the flaky test Spanner need to run on us-west1 region.
+export GCLOUD_TESTS_GOLANG_SPANNER_INSTANCE_CONFIG="regional-us-west1"
+
# Fail on any error
set -eo pipefail
