OpenShift Container Platform upgrade
Upgrade OpenShift® in IBM Storage Fusion HCI System. For offline upgrades of OpenShift Container Platform, follow the Red Hat® steps. However, follow the guidelines and versions that are specified in this section.
Before you begin
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Important: If you use Global Data Platform as a storage type, then make sure that you do not upgrade OpenShift Container Platform to the following versions:
- Do not upgrade OpenShift Container Platform to 4.13.42 or a higher version.
- Do not upgrade OpenShift Container Platform to 4.14.25 or a higher version.
- Do not upgrade OpenShift Container Platform to 4.15.13 or a higher version.
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Note:
- You must have IBM Storage Fusion HCI System 2.7.1 and OpenShift Container Platform at 4.12.
- For 4.13, you must be on OpenShift Container Platform 4.12.
- For 4.14, you must be on OpenShift Container Platform 4.13.
- If you must work with Hosted Control Plane clusters or Hosted Control Plane with Fusion Data Foundation, then upgrade OpenShift Container Platform to 4.14.x after the upgrade of IBM Storage Fusion and services to 2.7.1. Otherwise, this upgrade is optional.
- After every OpenShift Container Platform upgrade, ensure you upgrade the OpenShift virtualization operator if it is installed. For more information, see Updating OpenShift Virtualization.
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If you are using offline, see the following Updating a cluster in a disconnected environment topics based on your version of OpenShift Container Platform:
- Verify whether all services and OpenShift Container Platform are healthy.
- Both high speed switches must be available, functional, and healthy.
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Note: Review the supported and allowed upgrade path on OpenShift Container Platform upgrade graph tool. Do this to avoid the upgrade to a version that does not have any further upgrade path due to unavailability in stable channels. For more information about upgrade version details, see Red Hat Documentation.
- Run the upgrade precheck script before you upgrade the OpenShift Container Platform. For more information about the upgrade precheck script, see Precheck script.
About this task
Important: In IBM Storage Fusion HCI System 2.7.0 and
2.7.1, the upgrade of OpenShift Container Platform to 4.14 version
is not supported on Metro-DR deployment.
However, this support is available from 2.7.2 onwards.
Important: When the submariner auto upgrade fails or you observe any submariner issue
during OpenShift Container Platform upgrade, contact IBM
Support
Procedure
What to do next
To avoid issues related to backup, do the following steps:
- Upgrade OpenShift Container Platform and Red Hat OpenShift Virtualization to 4.14 for all the virtual machines that were created with OpenShift Container Platform 4.13.
- Stop and start the virtual machines.