backup restore

Backup process:

This is a series of cron jobs that back up the etcds, definition files to a remote system. It is distributed between the nodes for HA.

On the etcds the following cron entries were made

    0 22 * * * etcdctl backup --data-dir /var/lib/etcd/ --backup-dir /admin/etcd.bak; cp /var/lib/etcd/member/snap/db /admin/etcd.bak/member/snap/db; tar -zcf /admin/e001.tgz /admin/ex.bak; rm -rf /admin/etcd.bak

On the masters collect all of the files from the nodes with the following cron entry for each node:

    30 22 * * * scp node@node1:/etc/oirgin/node/node-config.yaml /admin/backup/node1/node-config.yaml; scp node@node1:/var/spool/cron/root /admin/backup/node1/root_cron

On the masters collect all of the files from the etcds with the following cron entry for each etcd:

    29 22 * * * scp etcd@etcd:/etcd/e001.tgz /admin/backup

On the masters collect all of the local config files for that master.

    40 22 * * * cp /etc/sysconfig/atomic-openshift-master-api /admin/backup/master/atomic-openshift-master-api
    40 22 * * * cp /etc/sysconfig/atomic-openshift-master-controllers /admin/backup/master/atomic-openshift-master-controllers
    40 22 * * * cp /etc/origin/master/master-config.yaml /admin/backup/master/master-config.yaml
    40 22 * * * cp /etc/origin/node/node-config.yaml /admin/backup/master/node-config.yaml
    40 22 * * * cp /etc/ansible/hosts /admin/backup/master/hosts
    40 22 * * * cp /var/spool/cron/root /admin/backup/master/root_cron

for each master

    45 23 * * * scp -r root@othermaster:/admin/backup/othermaster/* /root/backup/othermaster/

Create a tarball and send it to the backup server:

    50 23 * * * tar -czf /root/m001_`/usr/bin/date "+%Y.%m.%d"`.tgz /root/backup
    55 23 * * * scp /root/m001_* [email protected]:/home/cloud-user/; mv /root/m001_* /root/sent

restore process:

1) Create the VMs for the OpenShift cluster
2) Run the ansible script to install OpenShift
3) On each master, turn off the master processes.
4) Update the etcd.
5) Update the nodes
6) update the masters
7) start the masters.