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>
This command updates the heat stack with updated numbers and list of resource IDs (which represent nodes) to be deleted.
Note
If you passed any extra environment files when you created the overcloud (for
instance, in order to configure network isolation), you must pass them again here
using the -e
or --environment-file
option to avoid making undesired
changes to the overcloud.
Note
Before deleting a compute node or a cephstorage node, please make sure that the node is quiesced, see Quiescing a Compute Node or Quiescing a CephStorage Node.
Note
A list of nova instance IDs can be listed with command:
nova list
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