[Labs-l] Ubuntu 14.04 Trusty image now available (mostly)

Wed May 21 16:46:25 UTC 2014

Awesome!

Great job :)

On Wed, May 21, 2014 at 6:37 PM, Andrew Bogott <abogott at wikimedia.org> wrote:
>
> I've just removed the "(testing)" from the labs Trusty image.  That image
> should now be safe and reliable for most uses.  If you don't care about
> Ruby, Rails, or Puppet, then feel free to dive in! Otherwise, read on...
>
> Puppet:
>
>     At the moment, default Trusty VMs run the same version of Puppet as the
> old Precise images.  So, no surprises there.  In some cases puppet classes
> that work just fine on Precise may malfunction due to mismatched Trusty
> package versions.  I haven't seen a lot of those cases so far, but it's
> something to be wary of.
>
> Role::Puppet::Self:
>
>     At the moment this doesn't work on Trusty at all.  Trusty wants to
> install puppet master version 3, which causes a great dependency cascade
> which ultimately threatens to uninstall the puppet client and break
> everything.  We're working on a couple of possible solutions to this, but in
> the meantime you should just avoid using Trusty as a puppetmaster or a
> puppet test box.
>
> Ruby, Rails, etc:
>
>     Our default Trusty VMs come standard with Ruby installed.  It is,
> however, a forwarded-ported version that is /not/ standard for Trusty.  That
> means that if you install anything that depends on Ruby then apt will try to
> upgrade your Ruby version which will break a bunch of things, including
> puppet, and probably result in the box being unusable.  So... when
> installing packages keep an eye out for such warnings.
>
>     In not all that long (a month or so, perhaps?) we'll be upgrading all of
> our infrastructure to puppet 3, in which case all of these version-conflict
> issues should be neatly resolved.  At that point I'll also switch Trusty
> over to the default base image; until then I still regard Precise as the
> safe choice.
>
>
>     If you encounter any difficulties with this image outside of the above,
> I'd like to hear about them!  Please respond to this thread with details.
>
> -Andrew
>
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