Database Canary Applications

Mon, 01 Jan 0001 00:00:00 +0000

When a platform team changes a Terraform module, bumps an engine version, or upgrades a connection library, the blast radius is every application built on top. Canary applications turn that blast radius into a tripwire.

Challenge

Platform-level changes fail in ways unit tests don’t catch: a parameter group default that breaks connection pooling, a provider upgrade that drifts state, an engine version with different driver behavior. The first signal used to be a product team’s pager.

Testing on cloudplz

Database Canary Applications

Challenge