Is there a recommended approach for using CloudFormation templates with Pulumi? For example, the database we use has an automated deployment via the AWS Marketplace which uses CF templates. It'd be nice to be able to deploy my whole cluster with Pulumi though.

You can deploy a cloud formation template via Pulumi using

aws.cloudformation.Stack

and the

templateUrl

property if needed for a remote cloud formation config.. https://pulumi.io/reference/pkg/nodejs/@pulumi/aws/cloudformation/#property-templateurl