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Downgrading OpenShift
The Ansible playbook used during the upgrade process should have created a backup of the master-config.yaml file and the etcd data directory. Ensure these exist on your masters and etcd members:
/etc/origin/master/master-config.yaml.<timestamp> /var/lib/origin/etcd-backup-<timestamp>
Also, back up the node-config.yaml file on each node (including masters, which have the node component on them) with a timestamp:
/etc/origin/node/node-config.yaml.<timestamp>
If you use a separate etcd cluster instead of a single embedded etcd instance, the backup is likely created on all etcd members, though only one is required for the recovery process. You can run a separate etcd instance that is co-located with your master nodes.
The RPM downgrade process in a later step should create .rpmsave backups of the following files, but it may be a good idea to keep a separate copy regardless:
/etc/sysconfig/atomic-openshift-master /etc/etcd/etcd.conf (1)
| 1 | Only required if using a separate etcd cluster. |
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