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[Patrick Petit <patrick.michel.petit@xxxxxxxxx>]

Hi,

Could someone give a practical overview of how configuring and using the
instance type extra specs extension capability introduced in Folsom?

If how extending an instance type is relatively clear.

Eg.: #nova-manage instance_type set_key --name=<my.instancetype> --key
<cpu_arch> --value <'s== x86_64'>

The principles of capability advertising is less clearer. Is it assumed
that the key/value pairs are always declared statically as flags in
nova.conf of the compute node, or can they be generated dynamically and if
so, who would that be? And also, are the keys completely free form strings
or strings that are known (reserved) by Nova?

Thanks in advance for clarifying this.

Patrick