Helm repository

We should consider adding official support for a Helm chart repository. This would provide an official method to publish charts, control access, and version control them.

For example, Artifactory has official support here: https://www.jfrog.com/confluence/display/RTF/Helm+Chart+Repositories

It is possible to make your own using GitLab CI and Pages, however we should strive for a cleaner more fully-featured solution.

• For example, we made our own here: https://gitlab.com/charts/charts.gitlab.io/blob/master/.gitlab-ci.yml