undercloud: add a note about --use-heat option.
1) --use-heat can be used in Rocky to force a deployment or an upgrade of a non containerized undercloud, even if we don't support it. 2) the option is removed in Stein. Change-Id: I89f0d4ef0578b0cef569492ba4445b723d586547
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@ -184,7 +184,8 @@ Installing the Undercloud
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.. note::
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To install a deprecated instack undercloud, you'll need to deploy
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with ``--use-heat=False`` option.
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with ``--use-heat=False`` option. It only works in Rocky
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as instack-undercloud was retired in Stein.
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In Rocky, we will run all the OpenStack services in a moby container runtime
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@ -125,7 +125,7 @@ Updating Undercloud Components
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The undercloud is containerized by default as of Rocky. Therefore,
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an undercloud deployed on Queens (non-containerized) will be upgraded
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to a containerized undercloud on Rocky, by default.
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To upgrade with instack undercloud, you'll need to upgrade with
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To upgrade with instack undercloud in Rocky, you'll need to upgrade with
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``--use-heat=False`` option. Note this isn't tested and not supported.
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.. note::
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