W dniu 02.08.2019 o 19:55, Alfredo Deza pisze:
On Fri, Aug 2, 2019 at 12:20 PM Lars Marowsky-Bree <
lmb@suse.com
>
wrote:
Kyrlyo wanted to add openSUSE to the set of distributions that get
build for and used by teuthology, for example:
However, seems officially there are "no plans" to add other
platforms but Ubuntu and CentOS, so Alfredo closed the PRs.
At Linaro we would like to help with adding Debian to the list of
distributions Ceph is built for. We can provide aarch64 (arm64) machines
for it.
Hey Lars. Adding a distro for builds is a very involved problem to
solve. We don't keep a detailed list of everything that is needed
but I will try to go over some of the well-known items:
2) A new distribution added *must* exist in the cloud provider (OVH
in this case) that can spin up a VM for builds (as of this writing,
there is only an opensuse42 image available from 2016)
https://www.ovh.co.uk/dedicated_servers/distributions/
lists Debian 10
as available. Not that this page is up-to-date as it does not even list
Ubuntu 18.04
3) *All* the building scripts must be revised to ensure that the new
distribution is accounted for. I did some of this work when adding
Ubuntu Bionic and it was non-trivial, error prone, and it took about
two weeks to really get it right with the help of other people.
I can probably work on it.
4) The services that ensure that images come up and are prepared to
build Ceph have to be udpated as well to ensure that the minimum
requirements are installed so that the machine is operational
5) If the new distro is Python3 only we will need to update all
tooling that interacts with a jenkins node - we are not there yet as
all our tooling is Python2 exclusive.
Debian 10 'buster' has both Python 2.7 and Python 3.7 so should not be
a problem - we can start with py2 and then update to py3 once Ceph move.
At Cephalocon, Ken Dreyer and me did a presentation on what exactly
entails building Ceph for both development and releases, the
problems we've faced and where we would like to head next. It might
be useful to go through if you haven't already:
https://www.youtube.com/watch?v=seHyiQT8YJM
Will watch it later.
A few of the things we brought up is that we (the Ceph
infrastructure team and our services) aren't prepared to accommodate
multiple other distributions and that we are trying to get away from
taking on the load of maintenance in our systems and looking to other
build/repo solutions. One of these solutions is the CentOS
storage-sig which we are trying to coordinate to build and host repos
for us there.
In addition to that, we mentioned that we would like to see a wider
community effort go into building and hosting Ceph in separate
systems, maybe with a special signing key (our release signing
process is pretty inflexible!) so that others who are building
development repositories can ensure their authenticity, while giving
us the ability to revoke keys as needed.
In the past, we've gotten asked to re-enable the Debian builds,
which puts us into a similar problem (maintenance burden, script
updates, and other items already mentioned), and we've had to turn
that down. As Ken mentions in the presentation, we really want to be
helpful and accommodating to the wider community, but we can't do it
on our own and with our infrastructure as it is today - we are maxed
out.
Distributing community signing keys, or allowing other builders to
submit status updates into shaman.ceph.com for testing scheduling is
yet-to-be-done work, but I am open to have those conversations so
that we can move forwards with more distros and better testing.
At Linaro we can arrange machines for building and testing. Space for
hosting Debian/arm64 repos too. We are fine on using those machines also
to build packages for other arm64 distributions.
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