diff --git a/synth.py b/synth.py
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+++ b/synth.py
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+# Copyright 2018 Google LLC
+#
+# 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.
+
+import synthtool as s
+import synthtool.gcp as gcp
+import logging
+
+logging.basicConfig(level=logging.DEBUG)
+common_templates = gcp.CommonTemplates()
+templates = common_templates.node_library()
+s.copy(templates, excludes=['README.md'])
+
+### SUPPORT DATABASE PLUGINS ###
+# Database plugins require that an instance of that database is running at a
+# known address. On Unix we spin up Docker containers to do so, while on Windows
+# we disable plugin integration tests, as there is no known procedure for doing
+# something equivalent.
+
+s.replace('.kokoro/test.bat', r'(call npm install \|\| goto :error)',
+r"""
+@rem Plugin integration tests on Windows are skipped, because there is no known
+@rem procedure to start up database docker containers for the Kokoro Windows CI.
+set TRACE_TEST_EXCLUDE_INTEGRATION=1
+
+\1""")
+
+s.replace('.kokoro/trampoline.sh', r'(python3 "\$\{KOKORO_GFILE_DIR\}/trampoline_v1\.py")',
+r"""# From bin/docker-trace.sh
+# Start up database docker containers for plugin integration tests.
+docker run --name trace-test-mongo -p 127.0.0.1:27017:27017 -d mongo
+docker run --name trace-test-redis -p 127.0.0.1:6379:6379 -d redis
+docker run --name trace-test-mysql -p 127.0.0.1:3306:3306\
+  -e MYSQL_ROOT_PASSWORD='Password12!'\
+  -e MYSQL_DATABASE=test\
+  -d mysql:5
+docker run --name trace-test-postgres -p 127.0.0.1:5432:5432\
+  -e POSTGRES_USER=postgres\
+  -e POSTGRES_PASSWORD='Password12!'\
+  -e POSTGRES_DB=test\
+  -d postgres
+
+\1""")
+
+### FIX CODE COVERAGE ###
+# The Trace Agent has a custom script for generating code coverage, which is
+# necessary because its tests are not run in the same process (due to its
+# monkeypatching nature).
+
+s.replace('.kokoro/test.sh', 'npm test',
+r"""
+# Initialize test fixtures for plugin tests.
+npm run init-test-fixtures
+# Run unit tests, reporting coverage individually for each test file.
+# Despite this, the codecov script _should_ be able to report coverage for the
+# whole project all at once.
+npm run script run-unit-tests-with-coverage""")