The BPS free and Pro plugins are specifically designed for WordPress. Google GCE is a virtual platform so even if you had WordPress installed I believe you would probably run into limitations and/or issues/problems. ie some BPS free or Pro features might not work on Google GCE and would need to be turned Off. I’m not real familiar with Google GCE, but if I had Google GCE the search terms I would use to look for additional website security for Google GCE would be: “Google Compute Engine security” or “Google Compute Engine website security”. You should also do the same general searches for Magento website security.
https://en.wikipedia.org/wiki/Google_Compute_Engine
Google Compute Engine (GCE) is the Infrastructure as a Service (IaaS) component of Google Cloud Platform which is built on the global infrastructure that runs Google’s search engine, Gmail, YouTube and other services. Google Compute Engine enables users to launch virtual machines (VMs) on demand. VMs can be launched from the standard images or custom images created by users. GCE users must authenticate based on OAuth 2.0 before launching the VMs. Google Compute Engine can be accessed via the Developer Console, RESTful API or command-line interface (CLI).
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