build: fix system tests, move to Kokoro (#372)

diff --git a/synth.py b/synth.py
new file mode 100644
index 0000000..069b214
--- /dev/null
+++ b/synth.py

@@ -0,0 +1,10 @@
+import synthtool as s
+from synthtool import gcp
+
+common = gcp.CommonTemplates()
+
+# ----------------------------------------------------------------------------
+# Add templated files
+# ----------------------------------------------------------------------------
+templated_files = common.py_library(unit_cov_level=100, cov_level=100)
+s.move(templated_files / '.kokoro')  # just move kokoro configs
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