977cef865e
If OVN will not make it for 20.05 then the section will be commented out or edited as a tech preview. Removed MySQL 5 to 8 upgrade steps. Will use a separate PR. Change-Id: I047efb5b9d3ced25e5c5332752c02e5e4368d172
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.. _cloud_topology_ha:
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==================================
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Cloud topology for HA applications
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==================================
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.. note::
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The information on this page is associated with the topic of :ref:`OpenStack
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high availability <ha>`. See that page for background information.
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**The below is to be edited. Based on a cloud from Solutions QA.**
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This page contains the analysis of cloud machines. The ideal is to do this for
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every machine in a cloud in order to determine the *cloud topology*. Six
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machines are featured here. They represent a good cross-section of an *Ubuntu
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OpenStack* cloud. See :ref:`Reference cloud for HA applications
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<reference_cloud_ha>` for the cloud upon which this exercise is based.
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Generally speaking, the cloud nodes are hyperconverged and this is the case for
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three of the chosen machines, numbered **17**, **18**, and **20**. Yet this
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analysis also looks at a trio of nodes dedicated to the `Landscape project`_:
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machines **3**, **11**, and **12**, each of which are not hyperconverged.
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.. note::
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Juju applications can be given custom names at deployement time (see
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`Application groups`_ in the Juju documentation). This document will call
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out these `named applications` wherever they occur.
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.. LINKS
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.. _Application groups: https://jaas.ai/docs/application-groups
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.. _Landscape project: https://landscape.canonical.com
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