1. Commit to master — this triggers build of container and helm chart — pushes image to docker repo and chart to chart repo, and then updates an “environment” chart which simply lists your chart as a dependency
2. “environment” chart being committed to master triggers deploy of that chart (which contains your charts at specific versions as dependencies) to staging
3. When ready, copy dependencies from staging environment chart to production environment chart, which works the same way

The end.