[openstack-dev] [Fuel][plugins] Fuel 6.0 plugin for Pacemaker STONITH (HA fencing)

Bogdan Dobrelya bdobrelia at mirantis.com
Tue Dec 30 11:37:59 UTC 2014

There is a long living blueprint [0] 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 [1] (WIP repo [2]) for this
feature as a plugin for puppet. It addresses the related blueprint for
HA Fencing in puppet manifests of Fuel library [3].

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 [4].

Please also note, there is a dev docs for Fuel plugins merged recently
[5] where you can find how to build and install this plugin.

[0] https://blueprints.launchpad.net/fuel/+spec/ha-fencing
[1] https://review.openstack.org/#/c/144425/
[3] https://blueprints.launchpad.net/fuel/+spec/fencing-in-puppet-manifests

Best regards,
Bogdan Dobrelya,
Skype #bogdando_at_yahoo.com
Irc #bogdando

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