Along similar lines I have been playing with Bitbucket Pipelines and Hugo to build static websites on commit and deploy them to S3 buckets. Really like the way they use docker containers as build agents, it's very tidy: https://github.com/rabidgremlin/hugo-s3
Nice one! I'm a developer from Atlassian, it's cool to see the different CI/CD applications that Pipelines is being used for.
Regarding static site deployment specifically, Aerobatic (https://www.aerobatic.com/) have a similar static site publishing offering via a Bitbucket add-on, though it uses Lambda rather than Pipelines. They've got a couple of other nifty features like auto-renewing SSL certificates, too.
