[ovirt-users] oVirt VM backup and restore

[Juan Hernández]

On 03/09/2017 11:11 AM, Gianluca Cecchi wrote:
> On Thu, Mar 9, 2017 at 10:58 AM, Juan Hernández <jhernand at redhat.com
> <mailto:jhernand at redhat.com>> wrote:
> 
> 
> 
>     Very good point Gialuca, you are right, the 'persist_memorystate' flag
>     is 'true' by default, and that makes the pause longer. Would you be so
>     kind to add it to the 'vm_backup.py' example that is part of version 4
>     of the SDK?
> 
> 
>     https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/vm_backup.py#L143-L151
>     <https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/vm_backup.py#L143-L151>
> 
>     (Note that that Gibhub is just a mirror, the change needs to be submited
>     using gerrit.ovirt.org <http://gerrit.ovirt.org>).
> 
> 
> 
> I already verified (on a 4.1 infra) that changing vm_backup.py
> downloaded yesterday from master this way (apart connection paramters):
> 
> $ diff vm_backup.py vm_backup.py.orig 
>  150d149
> <         persist_memorystate=False,
> 
> I get the backup result and snapshot is correctly without memory saved
> (and no pause at VM side)
> 
> In engine events I get:
> 
> Mar 9, 2017 10:50:39 AM Snapshot
> 'Oracle7-backup-c6bf637e-cdeb-4923-a39f-55a14d7bad7b' deletion for VM
> 'Oracle7' has been completed.
> Mar 9, 2017 10:49:48 AM Backup of virtual machine 'Oracle7' using
> snapshot 'Oracle7-backup-c6bf637e-cdeb-4923-a39f-55a14d7bad7b' is completed.
> Mar 9, 2017 10:49:48 AM Snapshot
> 'Oracle7-backup-c6bf637e-cdeb-4923-a39f-55a14d7bad7b' deletion for VM
> 'Oracle7' was initiated by admin at internal-authz.
> Mar 9, 2017 10:49:47 AM  Disk Oracle7_Disk1 was successfully detached
> from VM c7testovn1 by admin at internal-authz.
> Mar 9, 2017 10:49:45 AM Disk Oracle7_Disk1 was successfully attached to
> VM c7testovn1 by admin at internal-authz.
> Mar 9, 2017 10:49:41 AM Snapshot
> 'Oracle7-backup-c6bf637e-cdeb-4923-a39f-55a14d7bad7b' creation for VM
> 'Oracle7' has been completed.
> Mar 9, 2017 10:49:29 AM Snapshot
> 'Oracle7-backup-c6bf637e-cdeb-4923-a39f-55a14d7bad7b' creation for VM
> 'Oracle7' was initiated by admin at internal-authz.
> Mar 9, 2017 10:49:28 AM Backup of virtual machine 'Oracle7' using
> snapshot 'Oracle7-backup-c6bf637e-cdeb-4923-a39f-55a14d7bad7b' is starting.
> 
> 
> I have almost no experience in gerrit/github, unfortunately... only a
> beginner experience in svn ... ;-)
> If you give me some pointers I can try to apply what you asked...
> 
> Gianluca

I see that you already have a gerrit.ovirt.org, so it shouldn't be
difficult. The initial setup should be like this:

  $ git config --global user.name youruser
  $ git config --global user.email your at email
  $ git clone ssh://youruser@gerrit.ovirt.org:29418/ovirt-engine-sdk
  $ gitdir=$(git rev-parse --git-dir); scp -p -P 29418
youruser at gerrit.ovirt.org:hooks/commit-msg ${gitdir}/hooks/

Then, to submit the patch:

  $ cd ovirt-engine-sdk
  $ Edit the vm_backup.py file, and make your changes.
  $ git commit -a -s
  $ git push origin HEAD:refs/for/master