Re: [Users] Auto-start vms on boot?

On 12/09/2012 02:55 PM, Adrian Gibanel wrote: > This is how I see it: > > Engine should have an offline database of its assigned hosts and their > state (With state I mean properties. One of these properties would be > the auto-start one). > So when a host starts the engine starts and then loops assigned virtual > machines. While looping the virtual machines checs its auto-start > property. If it's set to true it starts the virtual machine. > > Not sure if what I am describing has an easy implementation with current > oVirt architecture. Any comments from people who might understand better > oVirt architecture on this use-case? > > I think the hosts should rely the least possible on the management server. > my concern is how to make sure engine only starts VMs it should in this case. > ------------------------------**------------------------------** > ------------ > > *De: *"Itamar Heim" <iheim(a)redhat.com&gt; > *Para: *"Adrian Gibanel" <adrian.gibanel(a)btactic.com&gt; > *CC: *"users" <users(a)ovirt.org&gt; > *Enviados: *Viernes, 7 de Diciembre 2012 19:39:26 > *Asunto: *Re: [Users] Auto-start vms on boot? > > > On 12/07/2012 06:23 PM, Adrian Gibanel wrote: > > My use case is that I just don't want to start manually the > virtual machines when the host starts and, also, if the host is > shutdown it should guest-shutdown the virtual machines. > > > > Any doc on that pin option? How one is supposed to pin a virtual > machine to a host? > > just to be clear, we still don't have the behavior i described. I just > stated the only use case i'm familiar for a similar requirement. > (pinning a VM to host is done via the edit vm dialog). > > question on your use case - how would the engine know if the admin > just > shutdown a VM manually from a VM which should be auto started > (should we > add such a checkbox). > in the use case i described, we would be adding a 'start/stop VM with > host' for a VM pinned to a host. > > > > > Thank you. > > > > ----- Mensaje original ----- > > > >> On 12/06/2012 10:34 PM, Adrian Gibanel wrote: > >>> It would seem that oVirt does not provide an standard way of > >>> forcing boot of virtual machines at boot. > >>> > >>> Pools can have pre-started vms as stated here: > >>> > https://access.redhat.com/**knowledge/docs/en-US/Red_Hat_** > Enterprise_Virtualization/3.1/**html/Administration_Guide/** > Prestarting_Virtual_Machines_**in_a_Pool.html<https://access.redhat.co... > >>> but pools imply state-less virtual machines and I am talking more > >>> about normal virtual machines. > >>> > >>> I've found this script: > >>> > >>> https://github.com/iranzo/**rhevm-utils/blob/master/rhev-** > vm-start.py<https://github.com/iranzo/rhevm-utils/blob/master/rhev-vm-... > >>> > >>> which could do to the trick if run at host boot. > >>> > >>> I've also thought (but not tried) to mark a virtual machine as > >>> "Highly Available" even if I have only one host (I mean, usually > >>> HA only makes sense when you have two hosts). > >>> > >>> Marking a VM as H.A. would do the trick? > >>> Any special reason why there isn't and standard way of marking > >>> which vms should be auto-started at boot? > >>> > >>> Just wanted to hear your thoughts before filling an RFE. > >>> > >>> > >>> Thank you. > >>> > >> what exactly is your use case? > >> the one i'm familiar with is to tie the VM life cycle to a > specific > >> host, so a VM which is pinned to a specific host for a certain > task > >> (say, IDS), is always starting when the host starts, and will be > >> automatically shutdown when host is moved to maintenance. > >> so only relevant for VMs which are pinned to a host. > > -- > <http://www.btactic.com/>***Adrián Gibanel* > > I.T. 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