
OpenStack Cloud Computing Cookbook
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Before a host aggregate can be used by OpenStack Compute, you must first add hosts to the aggregate groups created.
To add a host to an aggregate, you will need the following information:
The openstack
command-line client
The openrc
file containing appropriate credentials
The name or ID of the aggregate
The name or ID of the host
For the following example, the required values are as follows:
Host aggregate: cookbook-ssd-hosts
Compute host: compute-01
The following process is used to add a host to a host aggregate:
List hosts that are already in the aggregate:
openstack aggregate show cookbook-ssd-hosts
This will bring back an output like the following:
Now add the specified compute host to this aggregate as follows:
openstack aggregate add host cookbook-ssd-hosts compute-01
This will bring back an output like the following:
The openstack aggregate host add
command associates a host with a host aggregate in the Nova database...
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