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Document scale-down with hostnames 

Starting in Train, we'll allow operators to scale down with hostnames
instead of instance IDs.

Change-Id: I9b1bd34a150b0d1e9e54243232c94cd9283d218d
Depends-On: I23fc92dfdb1808dec59f0ff7f96910ab8b5ccf45
This commit is contained in:
Emilien Macchi 2020-04-07 11:01:43 -04:00
parent 4e160b79d2
commit 3d0a9b5d2c
2 changed files with 20 additions and 1 deletions
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11
deploy-guide/source/features/deployed_server.rst
View File

@ -721,6 +721,17 @@ user are as follows:
Scaling Down
^^^^^^^^^^^^
.. admonition:: Train
:class: train
Starting in Train and onward, `openstack overcloud node delete` can take
a list of server hostnames instead of instance ids. However they can't be
mixed while running the command. Example: if you use hostnames, it would
have to be for all the nodes to delete.
The following instructions are only useful when the cloud is deployed on Stein
or backward.
When scaling down the Overcloud, follow the scale down instructions as normal
as shown in :doc:`../post_deployment/delete_nodes`, however use the following
command to get the uuid values to pass to `openstack overcloud node delete`

10
deploy-guide/source/post_deployment/delete_nodes.rst
View File

@ -5,7 +5,7 @@ Deleting Overcloud Nodes
You can delete specific nodes from an overcloud with command::
openstack overcloud node delete --stack $STACK_NAME --templates [templates dir] <list of nova instance IDs>
openstack overcloud node delete --stack $STACK_NAME --templates [templates dir] <list of nova instance IDs or hostnames starting in Train>
This command updates the heat stack with updated numbers and list of resource
IDs (which represent nodes) to be deleted.
@ -17,6 +17,14 @@ IDs (which represent nodes) to be deleted.
prevent accidental node removal.
To skip it, please use "--yes".
.. admonition:: Train
:class: train
Starting in Train and onward, `openstack overcloud node delete` can take
a list of server hostnames instead of instance ids. However they can't be
mixed while running the command. Example: if you use hostnames, it would
have to be for all the nodes to delete.
.. note::
If you are :ref:`baremetal_provision` then follow those
scale-down instructions to call ``openstack overcloud node delete`` with a