system-hackers service agreement

[Daniel Pocock]

On 19/05/16 15:28, Albert Dengg wrote:
> On Thu, May 19, 2016 at 11:33:26AM +0200, Jonas Oberg wrote:
> ...
>>> - how will major upgrades (e.g. from Debian 8.0 to 9.0) be deployed?
>> Again, this is best effort. Typically, at the moment, we do not do any
>> major upgrades unless changing the service at the same time.
> that is not 100% true...i have done the upgrade from debian 7 to 8 on
> some of the new systems (the first ones beein built)...
> for lot's of services this should be possible without a major issue if
> we can prevent of having lots of custom patches etc in in.
>
> some services are more problematic then others of course...
>
> the more interconnectiopn there are the more problematic upgrades are of
> course.

That is one case where virtualization sometimes helps.  If you have 10
services on the same host it can be impossible to upgrade without 2 days
of downtime but if you have 10 different VMs then you can upgrade each
one on a different day.