Migrate ImageContentSoucrePolicy to ImageDigestMirrorSet

[QiWang19]

OCPNODE-521 has been implemented and will ship with openshift 4.13.
This will introduce new CRD ImageDigestMirrorSet to redirect image pull for mirrored content.
It is planned that other openshift components rely on ImageContentSource to migrate to ImageDigestMirrorSet in OCP 4.14.
Could contributors who are familiar with ICSP use in the repository help with the migration?

This may need to cooperate PRs of openshift components that this repository relies on. I could help with that.

• ImageDigestMirrorSet CRD: https://github.com/openshift/api/blob/master/config/v1/0000_10_config-operator_01_imagedigestmirrorset.crd.yaml
• epic to keep track of code migration: https://issues.redhat.com/browse/OCPNODE-1258

[openshift-bot]

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/lifecycle stale

[openshift-bot]

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/lifecycle rotten
/remove-lifecycle stale

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[openshift-ci]

@openshift-bot: Closing this issue.

In response to this:

Rotten issues close after 30d of inactivity.

Reopen the issue by commenting /reopen.
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/close

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