User Story:

As a cluster admin, I want to be able to:

• provision the internal registry with a private storage account

so that I can

• have a fully private cluster when setting `publish: Internal` in the install config

Acceptance Criteria:

Description of criteria:

• Upstream documentation

• The installer creates a `configs.imageregistry/cluster` (at install time) with Azure storage network access configuration set to `Internal`, as implemented by openshift/api#1607

(optional) Out of Scope:

Detail about what is specifically not being delivered in the story

Engineering Details:

• Example of how this is done for ingress: https://github.com/openshift/installer/blob/master/pkg/asset/manifests/ingress.go#L138
• Initial spike: IR-372

This requires/does not require a design proposal.
This requires/does not require a feature gate.