Red Hat Summit3장. Updating GitOps ZTP
You can update the GitOps Zero Touch Provisioning (ZTP) infrastructure independently from the hub cluster, Red Hat Advanced Cluster Management (RHACM), and the managed OpenShift Container Platform clusters.
You can update the Red Hat OpenShift GitOps Operator when new versions become available. When updating the GitOps ZTP plugin, review the updated files in the reference configuration and ensure that the changes meet your requirements.
Using PolicyGenTemplate CRs to manage and deploy policies to managed clusters will be deprecated in an upcoming OpenShift Container Platform release. Equivalent and improved functionality is available using Red Hat Advanced Cluster Management (RHACM) and PolicyGenerator CRs.
For more information about PolicyGenerator resources, see the RHACM Integrating Policy Generator documentation.
3.1. Overview of the GitOps ZTP update process
You can update GitOps Zero Touch Provisioning (ZTP) for a fully operational hub cluster running an earlier version of the GitOps ZTP infrastructure. The update process avoids impact on managed clusters.
Any changes to policy settings, including adding recommended content, results in updated policies that must be rolled out to the managed clusters and reconciled.
At a high level, the strategy for updating the GitOps ZTP infrastructure is as follows:
-
Label all existing clusters with the
ztp-donelabel. - Stop the ArgoCD applications.
- Install the new GitOps ZTP tools.
- Update required content and optional changes in the Git repository.
- Enable pulling the ISO images for the desired OpenShift Container Platform version.
- Update and restart the application configuration.
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