OpenNebulaConf2015 2.02 Backing up your VM’s with Bacula - Alberto García
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How to use Bacula and live snapshot’s capabilities on OpenNebula to make backups of your virtual machines and store them. Author Biography Automate all the things! I love using any tool to make things to work automagically.
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OpenNebulaConf2015 2.02 Backing up your VM’s with Bacula - Alberto García
- 1. Opennebula & Bacula Backing Up Your VM Alberto García Fernández – Rentalia.com
- 2. Who am I? ● Sysadmin @ Rentalia.com ● Lazy by nature ● Automate and forget alberto.garcia.fernandez.it@gmail.com linkedin.com/in/albertogarciafdez github.com/AlbertoGarciaFdez
- 3. Agenda ● Making backups of VM, Why? ● A bit of Bacula ● OpenNebula & Bacula ● Demo ● Questions
- 5. Why ● I do Continuous Delivery (Puppet) ● I use some Golden/Master images too Images that won't change (completed projects) Slow to deploy services ● Machines without Continuous Delivery Dev machines ● Making backups is always a great idea
- 6. A bit of Bacula http://bacula.org/ ● Backup solution Fetch, compress and store data across your network ● RunScript Directive Make use of scripts at different states of the backup ● Get file paths from script Set the backup target from a script at running time
- 7. A bit of Bacula Backup example
- 8. OpenNebula & Bacula FileSet example within Bacula
- 9. OpenNebula & Bacula We want automatic backups from VM disk images ● We have to glue the pieces – from OpenNebula ➢ onevm disk-saveas – live backup of running VM's ➢ oneimage show – retrieve new image id ➢ oneimage delete – erase the copy
- 10. OpenNebula & Bacula We want automatic backups from VM disk images ● We have to glue the pieces – from Bacula ➢ Client = $OpenNebula_Frontend ➢ We get acces to the cli from Bacula connection ➢ File = “|copy_this.sh vm_(id|name)” ➢ Which returns new image path ➢ ClientRunAfterJob = “Clean.sh”
- 11. OpenNebula & Bacula OpenNebula Job
- 12. OpenNebula & Bacula File.sh returns a path
- 15. OpenNebula & Bacula Problems arise 1) Bacula connects as root but we need oneadmin Using 'su' within scripts or bacula directives OR Adding "-u oneadmin -g oneadmin" default/bacula-fd 2) Wait for READY status on new image Otherwise, bacula will fetch an incomplete copy 3) What is the storage id to backup from the VM In our case it's always 0 but you can use any parameter to identify the correct disk Type = OS seems logic
- 16. OpenNebula & Bacula 1) Bacula connects as root but we need oneadmin /etc/default/bacula-fd 2) Wait for READY status on new image /var/lib/one/File.sh
- 17. OpenNebula & Bacula 3) What is the storage id to backup from the VM Using 0 works for me. Experiment with your own env
- 18. OpenNebula & Bacula Ok ok ok, i'll give a better solution
- 19. Questions Time Thanks for your attention! alberto.garcia.fernandez.it@gmail.com alberto.garcia@rentalia.com github.com/AlbertoGarciaFdez