56a446d53f
This change adds a specific flag to allow environments to indicate that they do not support an IDE bus being used to attach devices to an instance. This is required as Nova's libvirt driver is looking to default to the newer QEMU machine types such as ``q35`` in the future [1]. These newer machine types have dropped support for the IDE bus in favour of the more modern SATA, SCSI and VirtIO buses. As such in the longer term it cannot be assumed that the IDE bus will always be available and in the short term we need a way to indicate that an environment doesn't support IDE when it's using the ``q35`` machine type. For now the flag defaults to True but will need to move to False if Nova ever defaults to the ``q35`` machine type. [1] https://specs.openstack.org/openstack/nova-specs/specs/wallaby/approved/libvirt-stash-instance-machine-type.html Change-Id: I40824fc3c88f16050407e52a790dd162f1f67e3a
11 lines
407 B
YAML
11 lines
407 B
YAML
---
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other:
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A new ``[compute-feature-enabled]ide_bus`` config option has been
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introduced to indicate if the environment supports attaching disks to an
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instance using an ``IDE`` bus.
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This currently defaults to ``True`` but should be set to ``False`` when
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using the libvirt OpenStack Nova virt driver *and* the ``q35`` machine type
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as support for this bus is no longer provided.
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