Openstack VM Limits with Nova

nova, openstack

In the flavor set the extra specs
set like so

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nova flavor-key f103aef6-ded8-44d4-97b3-1a7d9543082d set quota:disk_total_iops_sec=200

disk

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def disk_qos(self, info, extra_specs):
    tune_items = ['disk_read_bytes_sec', 'disk_read_iops_sec',
        'disk_write_bytes_sec', 'disk_write_iops_sec',
        'disk_total_bytes_sec', 'disk_total_iops_sec']
    for key, value in six.iteritems(extra_specs):
        scope = key.split(':')
        if len(scope) > 1 and scope[0] == 'quota':
            if scope[1] in tune_items:
                setattr(info, scope[1], value)

example in the xml

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  <target dev='sda' bus='scsi'/>
  <iotune>
    <total_iops_sec>200</total_iops_sec>
  </iotune>
  <alias name='scsi0-0-0-0'/>
  <address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>

cpu

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 cpu_shares
cpu_quota
cpu_period

bandwidth

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 vif_inbound_average
vif_outbound_average
vif_inbound_peak
vif_outbound_peak
vif_inbound_burst
vif_outbound_burst