openstack
/
freezer-dr
Code Issues Proposed changes
Tools and automation to achieve Disaster Recovery of OpenStack Cloud Platforms
86 Commits 6 Branches 62 Tags 1.6 MiB
Python 94.6%
Jinja 5.4%
Go to file
Nguyen Hai 0db820b9cb Use openstackdocstheme 
Change theme of docs by using openstackdocstheme

Change-Id: I26ea48e9862e1e8652aecd873b1298cdfa0bdafd
 		2018-08-31 06:32:16 +00:00
config-generator freezer-dr big bang 2016-05-09 09:55:31 +00:00
doc Use openstackdocstheme 2018-08-31 06:32:16 +00:00
etc Fix notifier should only notify successfully evacuated nodes 2018-08-16 14:45:11 +09:00
freezer_dr Merge "Fix notifier should only notify successfully evacuated nodes" 2018-08-28 13:55:00 +00:00
tests Adding pep8, pylint, coverage, sphinx testing 2016-05-09 15:00:10 +00:00
.coveragerc Adding pep8, pylint, coverage, sphinx testing 2016-05-09 15:00:10 +00:00
.gitignore Switch to stestr 2018-07-11 10:59:33 +07:00
.gitreview Added .gitreview 2016-05-12 13:10:52 +00:00
.pylintrc update pylint 2018-08-15 13:22:31 +09:00
.stestr.conf Switch to stestr 2018-07-11 10:59:33 +07:00
.zuul.yaml add python 3.6 unit test job and switch documentation job to new PTI 2018-08-30 10:26:49 +09:00
CREDITS.rst Adding CREDITS.rst 2016-02-12 16:28:58 +00:00
HACKING.rst Fix wrong links 2017-08-14 17:20:13 +08:00
LICENSE Add LICENSE file 2017-01-17 13:18:06 +07:00
README.rst Change according to preferred word choice 2016-11-29 00:29:13 +00:00
requirements.txt update pylint 2018-08-15 13:22:31 +09:00
setup.cfg Update homepage url for freezer 2018-02-22 11:18:48 +07:00
setup.py Added pbr version in setup.py as it's required 2017-02-02 14:11:34 +00:00
test-requirements.txt Use openstackdocstheme 2018-08-31 06:32:16 +00:00
tox.ini Use openstackdocstheme 2018-08-31 06:32:16 +00:00

README.rst

Team and repository tags

image

Freezer Disaster Recovery

freezer-dr, OpenStack Compute node High Available provides compute node high availability for OpenStack. Simply freezer-dr monitors all compute nodes running in a cloud deployment and if there is any failure in one of the compute nodes freezer-dr will fence this compute node then freezer-dr will try to evacuate all running instances on this compute node, finally freezer-dr will notify all users who have workload/instances running on this compute node as well as will notify the cloud administrators.

freezer-dr has a pluggable architecture so it can be used with:

  1. Any monitoring system to monitor the compute nodes (currently we support only native OpenStack services status)
  2. Any fencing driver (currently supports IPMI, libvirt, ...)
  3. Any evacuation driver (currently supports evacuate api call, may be migrate ??)
  4. Any notification system (currently supports email based notifications, ...)

just by adding a simple plugin and adjust the configuration file to use this plugin or in future a combination of plugins if required

freezer-dr should run in the control plane, however the architecture supports different scenarios. For running freezer-dr under high availability mode, it should run with active passive mode.

How it works

Starting freezer-dr:

  1. freezer-dr Monitoring manager is going to load the required monitoring driver according to the configuration
  2. freezer-dr will query the monitoring system to check if it considers any compute nodes to be down ?
  3. if no, freezer-dr will exit displaying No failed nodes
  4. if yes, freezer-dr will call the fencing manager to fence the failed compute node
  5. Fencing manager will load the correct fencer according to the configuration
  6. once the compute node is fenced and is powered off now we will start the evacuation process
  7. freezer-dr will load the correct evacuation driver
  8. freezer-dr will evacuate all instances to another computes
  9. Once the evacuation process completed, freezer-dr will call the notification manager
  10. The notification manager will load the correct driver based on the configurations
  11. freezer-dr will start the notification process ...