Hi Swen,
You are correct – templates are not housekept on primary storage until all VMs
utilizing them have been deleted (have a look at this blog post if you want to
know a bit more about XenServer disk chains -
http://www.shapeblue.com/recovery-of-vms-to-new-cloudstack-instance/ ).
In short the problem you describe is something that hits most people who want
to do monthly template updates, and as you hint at it can really only be
managed with sufficiently sized storage pools, and if possible – by using
things like thin provisioning and deduplication, etc.
Other solutions would rely on you either running a managed infrastructure where
you provide an automated patching mechanism with e.g. Ansible / Puppet / Chef
/ etc. – but this would in most cases mean you have to plan patching with all
your customers – something I doubt you want to do.
Regards,
Dag Sonstebo
Cloud Architect
ShapeBlue
On 19/01/2017, 09:04, "S. Brüseke - proIO GmbH" <s.brues...@proio.com> wrote:
Hey guys,
I have a question regarding templates and how you manage these in you CS
installation.
We are planning to create a new template for Debian, CentOS and Ubuntu each
month to keep them up2date, because we have a short lifecycle for servers. Does
anybody do the same or has other workflows for that?
One big downside of that is that (as far as I understand CS) our primary
storage (we are using XenServer) is getting filled up with templates. CS is not
deleting a template until all VMs created by this template are expunged. Can
somebody confirm this?
I am really interested in other solutions and workflows, so please shoot.
:-)
Mit freundlichen Grüßen / With kind regards,
Swen
- proIO GmbH -
Geschäftsführer: Swen Brüseke
Sitz der Gesellschaft: Frankfurt am Main
USt-IdNr. DE 267 075 918
Registergericht: Frankfurt am Main - HRB 86239
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