diff --git a/.kokoro/system_tests_functions.cfg b/.kokoro/system_tests_functions.cfg
new file mode 100644
index 000000000000..1b37bf7db233
--- /dev/null
+++ b/.kokoro/system_tests_functions.cfg
@@ -0,0 +1,15 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Download secrets from Cloud Storage.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
+
+# Tell the trampoline which build file to use.
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-docs-samples/.kokoro/system_tests.sh"
+}
+
+env_vars: {
+    key: "NOX_SESSION"
+    value: "functions and (py36 or lint) and not venv"
+}