K8SPMDB-1634 improve open shift docs#368
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Pull request overview
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Updates OpenShift upgrade documentation by separating OLM Operator/CRD upgrade instructions from database upgrade steps and adding more guidance around OLM behavior and customization.
Changes:
- Refactored
update_openshift.mdto focus on Percona Server for MongoDB upgrade steps and link to the OLM Operator upgrade guide. - Expanded
update-crd-olm.mdwith detailed explanation of how OLM upgrades work, how to persist Operator customizations, and the pre-upgradeinitImagepatch workflow.
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Copilot reviewed 2 out of 2 changed files in this pull request and generated 5 comments.
| File | Description |
|---|---|
| docs/update_openshift.md | Simplifies OpenShift DB upgrade flow, adds assumptions include, links out to OLM Operator upgrade doc, and clarifies PMM ordering. |
| docs/update-crd-olm.md | Adds comprehensive OpenShift/OLM Operator+CRD upgrade guidance including CSV/subscription behavior and required pre-upgrade patching. |
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| If you have [installed the Operator on the OpenShift platform using OLM](openshift.md#install-the-operator-via-the-operator-lifecycle-manager-olm), you can upgrade the Operator within it. | ||
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| 1. List installed Operators for your Namespace to see if there are upgradable items. | ||
| If you know the OLM upgrade workflow, jump to the [update Deployment steps](#upgrade-the-operator). |
| # Upgrade Database and Operator on OpenShift | ||
| # Upgrade Percona Server for MongoDB on OpenShift | ||
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| {%set commandName = 'oc' %} |
| "backup": {"image": "registry.connect.redhat.com/percona/percona-server-mongodb-operator-containers@sha256:a73889d61e996bc4fbc6b256a1284b60232565e128a64e4f94b2c424966772eb"} | ||
| }}' | ||
| ``` | ||
| 4. We recommend to [update the PMM Server :octicons-link-external-16:](https://docs.percona.com/percona-monitoring-and-management/3/pmm-upgrade/index.html) **before** the upgrade of PMM Client. If you haven’t done it yet, exclude PMM Client from the list of images to update. |
| If you previously customized the Operator Deployment manually, these changes are overwritten during the upgrade. | ||
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| The CRD may be updated too, if the new Operator version introduces schema changes. | ||
| However, OLM doesn't modify the `PerconaServerMongoDB` Custom Resource. It remains unchanged and continues running with its current configuration. For how to update it, refer to [Update Percona Server for MongoDB](update_openshift.md). |
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| Click the "Upgrade available" link to see upgrade details, then click "Preview InstallPlan" button, and finally "Approve" to upgrade the Operator. | ||
| --8<-- "update-assumptions.md" |
nastena1606
marked this pull request as ready for review
July 21, 2026 08:26
nastena1606
requested review from
egegunes,
eleo007,
gkech,
hors,
jvpasinatto,
mayankshah1607,
nmarukovich,
pooknull and
valmiranogueira
as code owners
July 21, 2026 08:26
nastena1606
changed the title
egegunes
approved these changes
Jul 22, 2026
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