The ChartMuseum project was originally created for advanced chart repository use cases - things such as chart uploads, pluggable storage, and multi-tenancy. However, as more requirements piled up over time, it became increasingly clear to the Helm maintainers that the entire repository system was insufficient.

After many meetings, a decision was finally made that Helm would adopt the OCI Distribution Spec for the next generation of chart repos - the same API that Docker uses whenever you run a "docker pull" / "docker push".

Meanwhile, Project Harbor was focusing efforts on building a robust, cloud-native registry. Harbor is built atop the Docker Distribution project, which is essentially the reference implementation for OCI Distribution.

In Helm 3, the obvious successor to ChartMuseum will be Project Harbor. This talk will cover the move to OCI and how to use Harbor to serve charts.