James Page Nova Cloud Controller

Learn about actions >

• archive-data

  Archive old data to shadow tables

  Params

  • batch-size integer

• clear-unit-knownhost-cache

  Clear the knownhost cache for (default) all the units, a service, or a single unit. . The default is all units. If the 'target' param has an '/' in it, then it is assumed ot be a single unit. If no '/' is present, then all the units in a service will be refreshed. . e.g. target="nova-compute/4" will just clear the nova-compute/4 unit (in the 'nova-compute' application), whereas target='nova-compute' will refresh all of the units in the 'nova-compute' application. . The action triggers a refresh resolution of the known hosts for the unit, which then populates the cache, updates the knownhosts file for the associated service (e.g. 'nova-compute'), and, importantly, sets the relation data for that associated service with the new knownhosts file. This may cause a 'cloud-compute' relation changed hook on the associated nova-compute units if the hosts have changed. . This action still functions even if the 'cache-known-hosts' config value is not set; caching of hosts occurs regardless of that setting, and so this action can be used to force an update if DNS has changed in the system, or for a particular host (although this scenario is unlikely).

  Params

  • target string

• openstack-upgrade

  Perform openstack upgrades. Config option action-managed-upgrade must be set to True.

• pause

  Pause the nova-cloud-controller unit. This action will stop related services.

• resume

  Resume the nova-cloud-controller unit. This action will start related services.

• security-checklist

  Validate the running configuration against the OpenStack security guides checklist