canonical-ci-engineering team mailing list archive

[Ursula Junque <ursula.junque@xxxxxxxxxxxxx>]

Hi all,

On Wed, May 13, 2015 at 8:01 AM, Sergio Schvezov <
sergio.schvezov@xxxxxxxxxxxxx> wrote:

> On Wed, May 13, 2015 at 06:09:01PM +1200, Thomi Richards wrote:
> > Hi Sergio,
> >
> >
> > I tried to get hold of you on IRC today, but I guess I must have missed
> you.
>
> It's because I am off this week ;-)
>
> > The CI team need a way to generate a snappy image with one or more
> > additional debian packages applied.
> >
> > Our current approach is to regenerate the rootfs tarball for the latest
> > image, mount it in a chroot, install the new packages, unmount it, and
> then
> > (hopefully) pass that modified rootfs tarball to u-d-f and have it
> generate
> > an image based on our modified tarball, rather than the one downloaded
> from
> > the image server.
> >
> > I've had a look at the source code today for u-d-f (BTW, trunk FTBFS, as
> > lp:snappy/progress API seems to have made backwards-incompatible
> changes),
> > and this doesn't seem like it would be very difficult, but there's enough
> > alien code in there that I'm not confident enough to do it myself.
>
> Will fix when I get back (the new incarnation of u-d-f is moving into
> snappy itself fwiw).
>
> > Do you think this is a plausible / sane approach?
>
> It would of been before the plan to move the rootfs to a snappy package.
>
> Even though we use debs to build the image today, we might not in the
> future.
>
> Do you need debs btw? Isn't it possible to solve your problems by creating
> a snappy framework package?
>

I like this conversation already. :)



> > Is this something you'd be willing to add to the u-d-f tool?


> Not anymore, support for system image is going away. It can be added,
> but would be short lived, so I guess it depends on the immediate gains
> this option will provide.
>


There is a discussion going on about the right approach to solve this (and
other related) problems [1]. We could use the opportunity now to implement
this in the right place, maybe u-d-f isn't really that.

Cheers!


[1] https://trello.com/c/lW9B14E4/4-ci-flash-an-image-with-a-custom-rootfs


>
> > Any comments / thoughts on our approach?
>
> When the OS is delivered as a snapppy package we can add an interface to
> replace it.
>
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-- 
Úrsula Junque
Ubuntu CI Engineer

ursula.junque@xxxxxxxxxxxxx
ursinha@xxxxxxxxxxx
ursinha@xxxxxxxxxx

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