f08ed8036b
TripleO traditionally deploys the cinder-backup service to run A/P (active/passive) under pacemaker, but cinder itself supports running A/A. This patch adds deploy_steps_tasks to remove the service from pcmk control (essentially deleting the pcs resource) prior to deploying it as a regular containerized (non-pcmk) service. A new cinder-backup-active-active.yaml environment file helps the user clarify their intent. The legacy cinder-backup.yaml file continues to deploy the service under pacemaker (to preserve the default deployment behavior), but rather than encouraging users to edit the file to switch deployment modes (as a comment in the file used to advise), users can proactively deploy the A/A mode (or switch from A/P to A/A) by including the new environment file. Change-Id: Ic94025f51083da77f4ba6ee934ebcf32bcb9909f
9 lines
344 B
YAML
9 lines
344 B
YAML
---
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features:
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- |
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The Cinder Backup service can be switched from running active/passive
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under pacemaker, to active-active mode where it runs simultaneously on
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every node on which it's deployed. Note that the service will be restarted
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when switching modes, which will interrupt any backup operations currently
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in progress.
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