Using Route53 as a Key Value Store in GitHub Actions

2026 update: a modernized version of this post is here — uses OIDC instead of static AWS keys and fixes the deprecated ::set-output syntax that broke the Get action on current runners.

The Need 🔗 GitHub Actions is great, but one thing it’s missing is a form of persistence, or simple key-value store. Sure, you could persist to a git repo - and that might be the right move, depending on the use case. But, what if you just want to store a string or two that you’ll need later?