4.3.4. Updating flavor metadata
In addition to editing general attributes, you can add metadata to a flavor (extra_specs), which can help fine-tune instance usage. For example, you might want to set the maximum-allowed bandwidth or disk writes.
- Pre-defined keys determine hardware support or quotas. Pre-defined keys are limited by the hypervisor you are using (for libvirt, see 表4.5「Libvirt Metadata」).
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Both pre-defined and user-defined keys can determine instance scheduling. For example, you might specify
SpecialComp=True; any instance with this flavor can then only run in a host aggregate with the same key-value combination in its metadata (see 「Managing host aggregates」).
4.3.4.1. Viewing metadata
- As an admin user in the dashboard, select Admin > System > Flavors.
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Click the flavor’s Metadata link (
YesorNo). All current values are listed on the right-hand side under Existing Metadata.
