Add Startup Script of Compute Engine (#24562)

integrations/compute_engine/README.md

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+## Startup Script of Compute Engine
+
+A startup script is a file that contains commands that run when a virtual
+machine instance boots. Compute Engine provides support for running startup
+scripts on Linux and Windows virtual machines.
+
+### Create a virtual machine instance using startup script
+
+The `startup-script.sh` could be used as the startup script of a virtual machine
+instance which run Matter coverage report and publish the result via an App
+Engine service.
+
+You can create a virtual machine instance by using the gcloud compute instances
+create command with the `--metadata-from-file` flag.
+
+```
+gcloud compute instances create VM_NAME \
+ --image-project=PROJECT_NAME \
+ --image-family=ubuntu-22.04 \
+ --metadata-from-file=startup-script=FILE_PATH
+```
+
+Replace the following:
+
+`PROJECT_NAME`: the name of the project host the virtual machine instance
+
+`VM_NAME`: the name of the virtual machine instance
+
+`FILE_PATH`: the relative path to the startup script file

integrations/compute_engine/startup-script.sh

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+#!/usr/bin/env bash
+
+#
+# Copyright (c) 2023 Project CHIP Authors
+#
+# 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.
+#
+
+cd /tmp
+rm -rf connectedhomeip
+git clone --recurse-submodules https://github.com/project-chip/connectedhomeip.git
+cd connectedhomeip
+./scripts/build_coverage.sh 2>&1 | tee /tmp/matter_build.log
+cd out/coverage/coverage
+gcloud app deploy webapp_config.yaml 2>&1 | tee /tmp/matter_publish.log
+versions=$(gcloud app versions list \
+ --service default \
+ --sort-by '~VERSION.ID' \
+ --format 'value(VERSION.ID)' | sed 1,5d)
+for version in "$versions"; do
+ gcloud app versions delete "$version" \
+ --service default \
+ --quiet
+done