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add disaster recovery instructions

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Earl Warren 2024-10-19 12:29:49 +02:00
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README.md
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@ -1066,6 +1066,28 @@ persistence:
claimName: forgejo-data claimName: forgejo-data
``` ```
## Disaster recovery and maintenance
### When a machine or disk is scheduled for replacement.
* `kubectl drain hetzner05` # evacuate all the pods out of the node to be shutdown
### Routing the failover IP
When the machine to which the failover IP (failover.forgejo.org) is routed is unavailable or to be shutdown, to the [Hetzner server panel](https://robot.hetzner.com/server), to the IPs tab and change the route of the failover IP to another node. All nodes are configured with the failover IP, there is nothing else to do.
### Manual boot operations
#### On the machine that runs the NFS server
* `sudo drbdadm primary r1` # Switch the DRBD to primary
* `sudo mount /precious` # DRBD volume shared via NFS
* `sudo ip addr add 10.53.101.100/24 dev enp5s0.4001` # add NFS server IP
#### On the other machines
* `sudo ip addr del 10.53.101.100/24 dev enp5s0.4001` # remove NFS server IP
## Uberspace ## Uberspace
The website https://forgejo.org is hosted at The website https://forgejo.org is hosted at