NOTE! There are resources within this chart that require a custom CRD (keymaker.equinixmetal.com/v1) which is not yet open-sourced. This repo is PURELY AN EXAMPLE and should not be imported / used other than as an example.
At Equinix Metal we use helm primarily for variable inheritance with Argo CD. This is why you will see empty values in the values.yaml - when we template out our Argo applications the variables around the cluster components are running on are generated in those applications. This allows us to deploy a single chart globally but pass in templated variables.
The Jetstack Agent is an open source project and the agent deployment yaml (it's linked far down the page and there's no anchors) can be found here.