Investigate and document approach for supporting users patching/customising the template files
In order to make components customizable/flexible, we have allowed areas where users can provide raw k8s yaml config that gets
toYaml'd into the templates.
These are things like
In #1619 (closed) we want to get these conventions documented, but for the longer term we should consider other approaches for allowing users to customize the templates of the charts.
We should investigate whether this is a viable solution for users, and what the negative impacts on upgrades/reliability will be.