PoC for Cognito custom domains using terraform.

See main.tf. Also see the terraform docs and the github issue to add support for custom domains.

You can see it working with curl, like:

curl -vv 'https://auth.aws.stevekehlet.com/oauth2/authorize?response_type=code&client_id=1otf2f1qpp0h5slu15l0vs9jd3&redirect_uri=https%3A%2F%2Faws.stevekehlet.com%2Fauth%2Fcallback&scope=openid'

This will redirect you to the Cognito login page.