Hello. There is a long living blueprint  about HA fencing of failed nodes in Corosync and Pacemaker cluster. Happily, in 6.0 release we have a pluggable architecture supported in Fuel.
I propose the following implementation  (WIP repo ) for this feature as a plugin for puppet. It addresses the related blueprint for HA Fencing in puppet manifests of Fuel library . For initial version, all the data definitions for power management devices should be done manually in YAML files (see the plugin's README.md file). Later it could be done in a more user friendly way, as a part of Fuel UI perhaps. Note that the similar approach - YAML data structures which should be filled in by the cloud admin and passed to Fuel Orchestrator automatically at PXE provision stage - could be used as well for Power management blueprint, see the related ML thread . Please also note, there is a dev docs for Fuel plugins merged recently  where you can find how to build and install this plugin.  https://blueprints.launchpad.net/fuel/+spec/ha-fencing  https://review.openstack.org/#/c/144425/  https://github.com/bogdando/fuel-plugins/tree/fencing_puppet_newprovider/ha_fencing  https://blueprints.launchpad.net/fuel/+spec/fencing-in-puppet-manifests  http://lists.openstack.org/pipermail/openstack-dev/2014-November/049794.html  http://docs.mirantis.com/fuel/fuel-6.0/plugin-dev.html#what-is-pluggable-architecture -- Best regards, Bogdan Dobrelya, Skype #bogdando_at_yahoo.com Irc #bogdando _______________________________________________ OpenStack-dev mailing list OpenStackfirstname.lastname@example.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev