Public bug reported: The monitor plugins in /nova/compute/monitors/ are currently loaded via a nova.loadables.BaseLoader subclass called ResourceMonitorHandler. We should be able to get rid of the nova.loadables Python module and just use the stevedore library, which is purpose-built for extension loading and managing like this.
This would have the side benefit of us being able to deprecate the following CONF options: compute_monitors_opts = [ cfg.MultiStrOpt('compute_available_monitors', default=['nova.compute.monitors.all_monitors'], help='Monitor classes available to the compute which may ' 'be specified more than once.'), cfg.ListOpt('compute_monitors', default=[], help='A list of monitors that can be used for getting ' 'compute metrics.'), ] Since stevedore's ExtensionManager loads extensions via standard Python setuptools entry_points. ** Affects: nova Importance: Wishlist Assignee: Jay Pipes (jaypipes) Status: Triaged ** Tags: low-hanging-fruit -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1468012 Title: compute monitors should be loaded via stevedore Status in OpenStack Compute (Nova): Triaged Bug description: The monitor plugins in /nova/compute/monitors/ are currently loaded via a nova.loadables.BaseLoader subclass called ResourceMonitorHandler. We should be able to get rid of the nova.loadables Python module and just use the stevedore library, which is purpose-built for extension loading and managing like this. This would have the side benefit of us being able to deprecate the following CONF options: compute_monitors_opts = [ cfg.MultiStrOpt('compute_available_monitors', default=['nova.compute.monitors.all_monitors'], help='Monitor classes available to the compute which may ' 'be specified more than once.'), cfg.ListOpt('compute_monitors', default=[], help='A list of monitors that can be used for getting ' 'compute metrics.'), ] Since stevedore's ExtensionManager loads extensions via standard Python setuptools entry_points. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1468012/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp