<ul><li>Building VM images with tools like Packer allows for baking dependencies and versioning images for precise control and automation.</li><li>A proposed image naming convention includes using semver or Unix timestamp with a triple hyphen separator to adhere to Google Cloud naming restrictions.</li><li>Creating a custom datasource for Google Cloud images in Renovate involves building a cloud function that interacts with GCP Compute API to retrieve and format image versions.</li><li>Deploying the cloud function on GCP with Terraform, setting up Renovate to access it securely, and using a custom Renovate manager allows for automated upgrading of GCP images based on versioning conventions.</li></ul>

Automating Google Cloud Image Upgrades with a Custom Renovate Datasource

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