88318a7ce8
Added new section, fixed capitalization and added prerequisite. Fixed merge conflict. Fixed titles. Minor editorial fixes. Signed-off-by: Elisamara Aoki Goncalves <elisamaraaoki.goncalves@windriver.com> Change-Id: I301f4be40680ddd8843d7d69d1d9f9eab5e61dc1
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59 lines
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.. xkr1590157116928
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.. _about-kubernetes-orchestrated-upgrades:
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====================================================
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About Kubernetes Version Upgrade Cloud Orchestration
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====================================================
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Kubernetes version upgrade cloud orchestration allows the Kubernetes version on
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all hosts of an entire |prod-long| cloud to be updated with a single operation.
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You can configure and run Kubernetes version upgrade cloud orchestration using
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the CLI, or the stx-nfv VIM REST API.
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.. _xkr1590157116928-section-phk-xls-tlb:
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-----------------------------------------------------------
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Kubernetes Version Upgrade Cloud Orchestration Requirements
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-----------------------------------------------------------
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Kubernetes version upgrade orchestration can only be done on a system that
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meets the following conditions:
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.. _xkr1590157116928-ul-frz-yls-tlb:
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- The system is clear of alarms \(with the exception of alarms for locked
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hosts, stopped instances, and Kubernetes version upgrade cloud
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orchestration in progress\).
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.. note::
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When configuring Kubernetes version upgrade cloud orchestration, you
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have the option to ignore alarms that are not management-affecting
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severity. For more information, see :ref:`Kubernetes Version Upgrade
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Cloud Orchestration <configuring-kubernetes-update-orchestration>`.
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- There are unlocked-enabled worker function hosts in the system that
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requires Kubernetes Version Upgrade Cloud Orchestration. The *Kubernetes
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Upgrade Orchestration Strategy* creation step will fail if there are no
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qualified hosts detected.
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A Kubernetes version upgrade is a reboot required operation. Therefore, in
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systems that have the |prefix|-openstack application applied with running
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instances, if the migrate option is selected there must be spare
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openstack-compute \(worker\) capacity to move instances off the
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openstack-compute \(worker\) host\(s\) being upgraded.
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- If you are using NetApp Trident in |prod| |prod-ver| and have upgraded from
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the |prod| previous version, ensure that your NetApp backend version is
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compatible with Trident 21.04 and follow the steps in :ref:`Upgrade the
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NetApp Trident Software <upgrade-the-netapp-trident-software-c5ec64d213d3>`
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to upgrade the Trident drivers to 21.04 before upgrading Kubernetes to
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version 1.19.
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.. note::
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Administrative controller ``swact`` operations should be avoided during
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Kubernetes version upgrade orchestration.
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