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Friday, December 12 2014

Infra FAD 2014 - Part 2: Ansible

Part 1: MirrorManager

It has been two days since I came back and others have already reported about our progress (Ralph, kevin day 0 & 1, kevin day 2, kevin day 3, kevin day 4 and finally, kevin day 5) but I wanted to came back on it as well :)

So seven of us from the Fedora Infrastructure team meet up in Raleigh in the Red Hat office there. We had Matt Domsch for the first couple of days to help us understanding and apprehending how MirrorManager works (see Part 1).

The second part of the FAD was dedicated around moving forward the infrastructure task of moving away from puppet in favor of Ansible. This is led to the most productive week we ever had on our Ansible git repo. I have been able to start porting things like varnish or haproxy while Ralph was doing the heavy lifting on working on porting the proxies themselves. Patrick worked on porting the nameservers and managed to actually re-install them using Ansible (and moving them to RHEL7 while at it). Smooge has been poking at the setup for fedorapeople.

With all that we also managed to get MirrorManager2 in staging and Luke wrote some awesome unit-tests for mirrorlist which already allowed us to make still some small optimizations.

All in all, I have to say that I have had a great time. I have the feeling that we achieved a lot of what we wanted to do and that we have been really efficient at it :-)

To remain critical about the organization. I think I agree with Ralph that for the next FAD we should be extra-careful to really organise some sort of social event. We have had strange hours (having lunch at 3pm or even 5pm once) and the one afternoon where we said we would take off we ended up working... Being involved in the organization while not on site makes it difficult to find something nice for the social event, but I think we/I should have tried harder to find something nice to do.

Anyway, like I said, I have a great time and I'm thankfull to everyone that have been able to make it to Raleigh, to the OSAS team at Red Hat that funded most of this FAD and to Ansible for inviting us for dinner on Friday evening :-)

Thanks a bunch folks!

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Saturday, December 6 2014

Infra FAD 2014 - Part 1: MirrorManager

The last two days have been quite busy for the Fedora infrastructure team. Most of us are indeed meeting up in Raleigh, in the Red Hat tower down-town and together with Matt Domsch, the original developer of MirrorManager, we have been on MirrorManager2.

It was really great for us that Matt could join. MirrorManager is pretty straight forward in theory but also full of small details which can make it a hard to understand fully. Having Matt with us allowed us to ask him as many questions as we wanted. We were also able to go with him through all the utility scripts and all the crons that make MirrorManager working.

The good surprise was that a significant part of the code was already converted for MirrorManager2, but we still found some crons and scripts that needed to be ported.

So after spending most of the first day on getting to understand and know more about the inner processes of MirrorManager, we were able to start working on porting the missing parts to MirrorManager2.

We also took the opportunity to discuss with Matt, Luke and David how things should look like for atomic and Ralph was able to make the first changes to make this a reality :-)

So yesterday evening we had all the crons/scripts (but one in fact that one isn't needed for MM2) converted to MirrorManager2 \ó/

That was a good point to stop and go quickly to the Red Hat Christmas party before meeting Greg who invited us for a dinner sponsored by Ansible. We had a really nice meal and evening, thanks Greg, thanks Ansible!

Today started the second part of the FAD: Ansible, but more on that later ;-)