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Merge pull request #88027 from openshift-cherrypick-robot/cherry-pick-87839-to-enterprise-4.18

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[enterprise-4.18] : Clarifying flow for disconnected with different registries for seed and target
This commit is contained in:
Michael Burke
2025-02-04 13:58:10 -05:00
committed by GitHub
parent d3feabd4ad 45edf74079
commit 80820bddb0
2 changed files with 14 additions and 0 deletions
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2
edge_computing/image_based_upgrade/cnf-image-based-upgrade-base.adoc
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@@ -18,6 +18,8 @@ include::modules/cnf-image-based-upgrade-prep.adoc[leveloffset=+1]
* xref:../../edge_computing/image_based_upgrade/preparing_for_image_based_upgrade/cnf-image-based-upgrade-prep-resources.adoc#cnf-image-based-upgrade-prep-resources[Creating ConfigMap objects for the image-based upgrade with {lcao}]
* xref:../../openshift_images/image-configuration.adoc#images-configuration-registry-mirror-configuring_image-configuration[Configuring image registry repository mirroring]
include::modules/cnf-image-based-upgrade-with-backup.adoc[leveloffset=+1]
[role="_additional-resources"]

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modules/cnf-image-based-upgrade-prep.adoc
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@@ -10,6 +10,18 @@ When you deploy the {lcao} on a cluster, an `ImageBasedUpgrade` custom resource
After you created all the resources that you need during the upgrade, you can move on to the `Prep` stage.
For more information, see the "Creating ConfigMap objects for the image-based upgrade with {lcao}" section.
[NOTE]
====
In a disconnected environment, if the seed cluster's release image registry is different from the target cluster's release image registry, you must create an `ImageDigestMirrorSet` (IDMS) resource to configure alternative mirrored repository locations. For more information, see "Configuring image registry repository mirroring".
You can retrieve the release registry used in the seed image by running the following command:
[source,terminal]
----
$ skopeo inspect docker://<imagename> | jq -r '.Labels."com.openshift.lifecycle-agent.seed_cluster_info" | fromjson | .release_registry'
----
====
.Prerequisites
* You have created resources to back up and restore your clusters.