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From Sven Vogel <>
Subject Re: [DISCUSS] New default template
Date Mon, 08 Jun 2020 20:20:39 GMT
My small additions.

I would go with an LTS version.

For me it would be CentOS 8 minimal. I agree with Paul sometimes the upstream repo are gone
or in archive state and its not for production use. Maybe we can put one of them to „our“
Cloudstack repo. If we use Ubuntu or CentOS is not so important both are LTS versions.

Maybe we should find a regular way after some time to switch to a newer one. So there is no
productive use and normally everybody should know that he don’t use this in a production
environment. We can’t address all security issues from the os. Maybe we should hint the
users and at the end of the day its their own risk if they use this.




Sven Vogel
Lead Cloud Solution Architect

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> Am 08.06.2020 um 16:21 schrieb Paul Angus <>:
> My 2 cents:
> The default template is not there for general or even production use, it’s there for
people to 'kick the tires' and either see if CloudStack is what they want or check that their
installation is generally OK.
> Therefore (IMO) the pre-requisites are:
> - small download size
> - compatibility across all of our supported hypervisors
> - compatibility with all CloudStack features; i.e. live memory and CPU addition, hot
disk-pluging, live migrations which require hypervisor tools installed, passing of user-data,
meta-data, ssh keys and password resets to the VM via VR and config-drive.
> - OS commands that users will be relatively familiar with.
> - ability to be leverage by Marvin tests to perform smoke and integration tests
> You know - the usual stuff...
> So that we know that the template should 'always work', I don't think that we should
point to an upstream repo, but take an OS version, add/configure whatever is strictly required
to meet our requirements, and keep in the CloudStack downloads.
> Ok, so more like $10 ..
> Kind regards
> Paul Angus
> 3 London Bridge Street,  3rd floor, News Building, London  SE1 9SGUK
> @shapeblue
> -----Original Message-----
> From: Andrija Panic <>
> Sent: 03 June 2020 13:03
> To: users <>
> Cc: dev <>; Abhishek Kumar <>
> Subject: Re: [DISCUSS] New default template
> Whatever is a choosen as the new one, needs to be compatible with ALL the current hypervisor
we support (i. e. VMware 6.0 and up, XenServer 7.0 and up and KVM of various flavours).
> So that needs to be taken into consideration when speaking about exotic OS-es or even
the newest ones (Ubuntu 20/CentOS 8) to find a proper OS mappings on hypervisor side that
will allow it to run normally.
> On Wed, 3 Jun 2020, 12:21 , <> wrote:
>> Hi,
>> I'd like to restate my previous stance on this which is - if not to
>> have a proper "market place" of trusted and tested templates - at
>> least to cover the popular ones.
>> The basics imho would be CentOS and Ubuntu, with this we cover 99% of
>> the user requirements.
>> I'd propose to go with the latest and greatest of both, Ubuntu 20.04
>> and
>> CentOS8 respectively (supported 2029).
>> I can repurpose the current build machine for and "donate"
>> it to the project so it's not a "third party" any more.
>> my 2 pence
>> On 2020-06-03 08:58, Abhishek Kumar wrote:
>>> Hi all,
>>> I would like to hear everyone's opinion on a new default template in
>>> CloudStack.
>>> Currently, we are using CentOS 5.x for different hypervisors but it
>>> is quite old(already completed its support life) and either the
>>> support for it has been removed
>>> ( or in
>>> legacy (
>> ry=software&details=1&partner=272&releases=448&page=1&display_interval
>> =10&sortColumn=Partner&sortOrder=Asc&testConfig=16
>> )
>>> in different hypervisors.
>>> Therefore, I think it is time now to move to a newer OS template. In
>>> my understanding CentOS7 is the minimum viable choice if we are
>>> continuing with CentOS. This can be the preferred choice as we
>>> already have tested templates for it on different hypervisors and it
>>> has 4 years left in its cycle.
>>> We can also explore Ubuntu’s cloud-images of 20.04. And if we want
>>> to go with something very light-weight we can think about something
>>> like Alpine Linux.
>>> Please have your say. Also, do you think this can be included in
>>> 4.15 itself so we can have a proper default template for something
>>> like XCP-ng 8.x which doesn't support CentOS 5 (and PV VMs)?
>>> Regards,
>>> Abhishek
>>> 3 London Bridge Street,  3rd floor, News Building, London  SE1 9SGUK
>>> @shapeblue

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