https://github.com/gryf/mistral-evacuate

PoC for providing automatic evacuation for VMs in OpenStack cloud using Mistral
https://github.com/gryf/mistral-evacuate

automatic evacuation ha instance-ha openstack vm

Last synced: about 1 month ago
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PoC for providing automatic evacuation for VMs in OpenStack cloud using Mistral

• Host: GitHub
• URL: https://github.com/gryf/mistral-evacuate
• Owner: gryf
• Created: 2015-11-16T15:42:38.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2016-03-21T09:28:49.000Z (almost 9 years ago)
• Last Synced: 2023-10-20T20:07:00.993Z (about 1 year ago)
• Topics: automatic, evacuation, ha, instance-ha, openstack, vm
• Language: Python
• Homepage:
• Size: 33.2 KB
• Stars: 16
• Watchers: 7
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst

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README

        
Mistral evacuate plugin

=======================

This is a PoC for providing automatic evacuation for VMs in OpenStack cloud

using Mistral. It uses flavor extra specs and VM metadata to tell if given

instance should be evacuated. Extra spec is 'evacuation:evacuate' and VM

metadata is 'evacuate'. If one of them is set to True, instance will be

evacuated.

Installation

------------

#. Copy ``filter_vm_action.py`` and ``evacuate_vm_action.py``

   to the place reachable by python interpreter -

   see ``PYTHONPATH`` or ``sys.path`` for reference.

#. Append lines

   .. code:: ini

      [entry_points]

      mistral.actions =

          …

          custom.filter_vm = filter_vm_action:FilterVmAction

          custom.evacuate = evacuate_vm_action:EvacuateVmAction

   to ``setup.cfg`` file under Mistral repository

#. Run db-sync tool via either

   .. code:: shell-session

      $ tools/sync_db.sh --config-file 

   or

   .. code:: shell-session

      $ mistral-db-manage --config-file  populate

#. Register Mistral workflow:

   .. code:: shell-session

      $ mistral workflow-create host-evacuate.yaml

#. Create JSON file with content similar to:

   .. code:: json

     {

         "search_opts": {

             "host": "compute-hostanme"

         },

         "on_shared_storage": false

     }

#. Trigger the action via:

   .. code:: shell-session

      $ mistral execution-create host-evacuate input.json

   where ``input.json`` is a file created in previous step.