OCI

Helmper primarily focus on OCI registry compatability, while also supporting Helm Repositories as sources, currently only OCI targets are supported.

Use OCI registry as source

...
charts:
- name: kyverno
  version: "3.2.*"
  plainHTTP: true
  repo:
    url: oci://0.0.0.0:5000/charts/kyverno
...

or use a public provider:

charts:
- name: cert-manager
  version: "1.0.0"
  repo:
    url: "oci://chartproxy.container-registry.com/charts.jetstack.io/cert-manager"

Locally you can do

...
registries:
- name: registry
  url: oci://0.0.0.0:5001
  insecure: true
  plainHTTP: true
...

or use a cloud provider:

...
registries:
- name: registry
  url: oci://your_registry.azurecr.io
...

Helm Charts will be placed under charts/{chart_name}, and images will be placed directly in the regsitry root /.

Optionally, if you specify registry[].sourcePrefix=true, images will be placed under a path obtained from the source registry name, fx

docker.io/library/hello-world -> oci://reg.azurecr.io/docker/library/hello-world

...
registries:
- name: registry
  url: oci://your_registry.azurecr.io
  sourcePrefix: true
...