enhancements/etcd/disaster-recovery-with-ceo: add backup proposal #240
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Signed-off-by: Sam Batschelet <[email protected]>
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Signed-off-by: Sam Batschelet <[email protected]>
| 4. On all masters copy directory `/etc/kubernetes/static-pod-manifests/kube-apiserver-pod-${APISERVER_REVISION}` | ||
| to `/etc/kubernetes/static-pod-manifests/backup-N/kube-apiserver-pod`. | ||
| 5. On all masters replace directory `/etc/kubernetes/static-pod-manifests/backups` with a copy of | ||
| `/etc/kubernetes/static-pod-manifests/backup-N` directory. |
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On 5, would a symoblic link of /etc/kubernetes/static-pod-manifests/backups to /etc/kubernetes/static-pod-manifests/backup-N be better, perhaps?
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Probably, the size of the etcd snapshot would not make a copy reasonable. Managing the link would be simpler.
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| 1. On all masters create a new backup revision `/etc/kubernetes/static-pod-manifests/backup-N`. | ||
| 2. On all masters write `/etc/kubernetes/static-pod-manifests/backup-N/backup.env` file containing 3 environmental | ||
| variables `CREATED`, `ETCD_REVISION` and `APISERVER_REVISION`. |
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this needs to be extended now as we are managing more static pods resources. I think we should also include OCP version.
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Backups might eventually be managed by a static pod controller. This proposal sets up a directory structure to make that easier to implement.
The idea here is that each master is prepared for restoring the cluster in possible autonomous fashion.
cc @deads2k @alaypatel07 @retroflexer