Connect Hashicorp Vault and Google’s CloudSQL databases: new plugin!

Expel open-sourced a HashiCorp Vault plugin that brokers database credentials between Vault and Google Cloud SQL by leveraging Google’s IAM-based Go connector. The plugin removes the need for CloudSQL authorized networks or the CloudSQL Auth proxy, simplifying operations while maintaining security best practices; the post describes the rationale, architecture, and links to code and a step-by-step deployment guide.