A couple of months ago, I was meeting colleagues of mine working on Docker and discussing about how much effort it would be to add support for it to SUSE OpenStack Cloud. It's been something that had been requested for a long time by quite a number of people and we never really had time to look into it. To find out how difficult it would be, I started looking at it on the evening; the README confirmed it shouldn't be too hard. But of course, we use Crowbar as our deployment framework, and the manual way of setting it up is not really something we'd want to recommend. Now would it be "not too hard" or just "easy"? There was only way to know that... And guess what happened next?

It took a couple of hours (and two patches) to get this working, including the time for packaging the missing dependencies and for testing. That's one of the nice things we benefit from using Crowbar: adding new features like this is relatively straight-forward, and so we can enable people to deploy a full cloud with all of these nice small features, without requiring them to learn about all the technologies and how to deploy them. Of course this was just a first pass (using the Juno code, btw).

Fast-forward a bit, and we decided to integrate this work. Since it was not a simple proof of concept anymore, we went ahead with some more serious testing. This resulted in us backporting patches for the Juno branch, but also making Nova behave a bit better since it wasn't aware of Docker as an hypervisor. This last point is a major problem if people want to use Docker as well as KVM, Xen, VMware or Hyper-V — the multi-hypervisor support is something that really matters to us, and this issue was actually the first one that got reported to us ;-) To validate all our work, we of course asked tempest to help us and the results are pretty good (we still have some failures, but they're related to missing features like volume support).

All in all, the integration went really smoothly :-)

Oh, I forgot to mention: there's also a docker plugin for heat. It's now available with our heat packages now in the Build Service as openstack-heat-plugin-heat_docker (Kilo, Juno); I haven't played with it yet, but this post should be a good start for anyone who's curious about this plugin.

Last week-end I was in Greece, in Thessaloniki, enjoying the openSUSE Conference 2013. If I had to summarize the event in one word, that would be: wow! It was the first time we had this event in another city than Nuremberg and Prague (two places where SUSE has offices), and it was the first time the organization was fully lead by the community. I was quite confident that things couldn't go wrong since, after all, what matters is that we're all in the same place. But I was amazed that the whole event went so smoothly! This was really a great job from a whole team of volunteers:

Just to give an example of the hard work that was accomplished: most (all?) talks were successfully streamed, and the recordings are already online! Stella and Kostas definitely deserve credits for the overall success, as they kept leading the organization in the right direction since last year, and the event wouldn't have been possible without their dedication. Our sponsors also helped make all this happen, so many thanks to SUSE, ARM, DevHdR and Oracle!

Having people from all over the world was once again an opportunity to meet up with old and new friends, who were coming from Brazil (Izabel, Carlos), the US, all over Europe obviously, but also India (Manu, Saurabh) and China as well as Taiwan (Sunny, Max, David, etc.)... The conference is the global event of the openSUSE community, without any doubt. With 250 attendees, there were a lot of hallway chats and informal meetings; I'm sure the GNOME couch tradition that we initiated with Dominique and Richard will stay over the years ;-)

Unsurprisingly, the openSUSE Board took opportunity of having so many community members to discuss several topics with as many people as possible. The board also organized for the first time a session about team reports. Even though several teams didn't participate to that session (generally because no team members was there), we had more than ten teams joining the party on stage, and this was probably one of the best way to see how broad our community really is and to learn the latest developments in various areas of the project. We also had our usual town hall meeting which went rather nicely, with useful feedback to the board.

The bad thing for me is that I had to stay only for a few days due to work, but there's already a next opportunity to meet with the community: this will be the openSUSE Summit in Orlando next November. And if you cannot make it, then I can only recommending making sure that you will join us next year, for the openSUSE Conference in Dubrovnik!

Visiblement, la Poste utilise des machines qui, parfois, ont faim et doivent se nourrir :

Dommage pour cette lettre !

In a couple of hours, I'll be taking the train and heading to Brussels for FOSDEM. I've lost counts of how many FOSDEM I've attended, which is probably a good indication of how great the event is!

As usual, this will be a good place to catch up with friends, but also to talk with tons of different people about so many topics. If you want to chat about OpenStack, SUSE Cloud, openSUSE or GNOME, I'll be glad to join you.

The schedule is quite packed, but from what I can tell so far, I'll be sitting in the cloud devroom on Sunday (don't hesitate to join in order to learn about what's happening in the OpenStack world!). Oh, I'll also give a talk in Janson about challenges that the GNOME project is facing, just before the closing keynote.

And no, I won't have my blue hat, so you'll need to find another way to catch me (hint: I have a SUSE backpack nowadays) ;-)

One of the first things I did when I joined the Cloud team at SUSE was to start porting DevStack to openSUSE. DevStack is a set of shell scripts to build complete OpenStack development environments. It is useful to create a small OpenStack environment that will be used for hacking, testing, etc. and is therefore primarily used for upstream development. Getting this to work on openSUSE seemed like a logical first step before doing more OpenStack work. I got things working pretty quickly, but for various reasons, this all stayed in a personal branch of mine (except for a few preliminary patches).

A few weeks ago, I got time for DevStack again. So I rebased my branch, cleaned up everything, and started submitting the patches. After reviews from Sean Dague and Dean Troyer (and some patch rewriting to address the issues that were raised), the openSUSE support landed in master. A few other people tested it, and nobody has been hitting any major issue, so yesterday, I finally submitted the patch to make openSUSE 12.2 a supported distribution. Now you can play with DevStack on openSUSE!

I wrote some documentation for DevStack on openSUSE if you want to get more details on how to use it. But I guess it wouldn't hurt to show how easy it is to setup your own OpenStack environment this way...

I'm shamelessly stealing instructions from the single VM DevStack guide to show you the very short version. Just run the following in an openSUSE virtual machine (do not run this on your main system unless you're 100% sure it's what you want: DevStack is a little bit too invasive right now; see Daniel's analysis on this topic):

zypper in git-core
git clone https://github.com/openstack-dev/devstack.git
cd devstack
echo ADMIN_PASSWORD=password > localrc
echo MYSQL_PASSWORD=password >> localrc
echo RABBIT_PASSWORD=password >> localrc
echo SERVICE_PASSWORD=password >> localrc
echo SERVICE_TOKEN=tokentoken >> localrc
echo FLAT_INTERFACE=br100 >> localrc
./stack.sh

(You'll actually need to call FORCE=yes ./stack.sh until the patch mentioned above gets in.)

And there you go, you have OpenStack running! That was quite easy, right? :-) You can connect to the web dashboard (horizon) or use the command line tools (hint: source openrc will setup the proper environment variables for you). Here's a few commands you can use to get started:

source openrc
glance image-list # find out which image is available
nova boot --image cirros-0.3.0-x86_64-uec --flavor m1.tiny cirros-test # start an instance of one specific image
nova list # see what instances are in the cloud

So go ahead, read the documentation, play with all this, and enjoy DevStack on openSUSE!

No fallback mode in GNOME 3.8

As announced by the release team two weeks ago, the fallback mode will be gone in GNOME 3.8. The decision was taken after some discussion on the mailing list back in June and in October, as well as some discussion during Boston Summit 2012. We also have a wiki page detailing the discussion arguments.

In my opinion, the biggest issue we had with the fallback mode is that, with only a few cycles, it quickly became clearly not tested enough, and lacked manpower for proper evolution along with other GNOME 3 changes. This resulted in a much lower quality than what we expect from GNOME. Moreover, several applications actually started requiring Clutter, and therefore didn't work anymore in a real fallback manner (ie, where you have no proper 3D acceleration); this means the fallback mode, when really used as a fallback, was not offering a fully usable desktop, and would be considered more like an alternative shell than a fallback mode.

Where does this leave us?, you might ask.

Well, for a start, GNOME 3.x had several iterative cycles to bring tons of improvements. Many users who were using the fallback mode because they didn't like the GNOME Shell experience are now happy with 3.6. But we're going an extra step starting with the next version: there is an explicit goal of having the project provide a set of extensions to help even more people preferring the fallback mode experience. The tentative list of what the extensions would provide is classic alt-tab, task bar, minimize/maximize buttons, and a main menu. This effort is being publicly tracked, so everyone can participate: if you're interested in contributing to these extensions, don't hesitate, I have no doubt help will be welcomed! Update: this topic is being discussed on desktop-devel-list right now!

There will also be work on improving GNOME 3 when running with software rendering. Of course, llvmpipe was a good start, and llvmpipe itself is getting better and better. But in addition, there are plans to offer a reduced resources mode, with fewer animations, that would be used in different circumstances, including when using software rendering. This should really improve the performances under llvmpipe.

There might be cases where these improvements will not be good enough in 3.8 (or with the Mesa and llvmpipe versions available at that time), resulting in a GNOME version that people might not consider acceptable in terms of performance or hardware support. Things will improve with time, obviously, and 3.10 will solve more and more issues; hence I would recommend to people hitting such issues to stay with 3.6 for a few more months.

All in all, the community is working on having future versions of GNOME, starting with GNOME 3.8, offer an improved alternative to the fallback mode.

Future of gnome-panel (and other fallback components)

Of course, this raises the question of what happens to the components of the fallback mode: gnome-applets, gnome-panel, gnome-screensaver, metacity, notification-daemon, polkit-gnome, etc. These components don't necessarily have to go away: they're just not part of what the GNOME project officially releases, and people are welcome to keep working on them. It's really up to each maintainer.

As for myself, I do not intend to keep maintaining gnome-panel after 3.6.x. I did a 3.6.2 release a few days ago, and it might well be what I consider my final release. If there's a strong push for some patches, there could be a 3.6.3 tarball... So, if you want to keep gnome-panel alive, contact me and you can become maintainer. As long as I either know you, or I can see that you have some minimal coding abilities, you'll get the maintainer hat for free :-)

Now, I believe a group of people could well adopt all the fallback components and keep building a great desktop, on top of other GNOME 3 bricks. They wouldn't even have to restrict themselves to what the GNOME 3 vision is (which is something that blocked some people from seriously contributing to gnome-panel). I don't think it'd be actually too much work: the code is already there! Of course, there would be some compatibility bits removed from other GNOME modules that would need to be moved elsewhere, but in most cases, it's really just about moving the code, not re-implementing things.

To be honest, I would really have loved if the MATE people had taken such an approach (maybe it's not too late?). I think it's a more reasonable effort than effectively forking all of GNOME 2, including obsolete technologies, as the amount of work is much more reasonable.

I'm eager to see if a group will step up to keep alive this old code, which represents thousands of hours from many of us! I wouldn't use it, but it would still make me happy :-)

In the last two weeks, I took some time to review patches submitted for cups-pk-helper and desktop-file-utils, and worked a bit on the code. This means new releases, which keeps me on track for the "two releases a year" schedule followed for those software :-)

cups-pk-helper 0.2.3 0.2.4

It is recommended to update to the 0.2.3 version of cups-pk-helper, due to a security flaw in the old code (CVE-2012-4510). I found it while fixing a compiler warning about a return value being ignored; re-reading that old code, I realized that it was, hrm, not really solid, that it was not checking permissions, and that it could actually be abused to overwrite any file (among other issues)... Thankfully, this can only be exploited if the user explicitly approves the action since it's protected with polkit authentication (using the admin password). So this is not as severe as it could have been. I want to thank Sebastian Krahmer from the SUSE Security Team, who was really helpful in reviewing my iterative fixes.

The other changes are build-time compatibility with cups 1.6, some additional paranoid processing of the input we get via dbus, and updated translations (thanks to transifex).

Update: the 0.2.3 tarball had a small bug when detecting the cups version, try 0.2.4 instead ;-)

desktop-file-utils 0.21

The 0.21 release of desktop-file-utils is mainly about an update of the validator to deal with several recent (and not so recent) changes in the XDG Menu specification: a main category is not required anymore (although still recommended if one main category makes sense for the application), Science is now a main category, and new categories have been registered (including the Spirituality one, that has been discussed years ago).

The validator now also correctly handles the new values for the AutostartCondition field used by GNOME 3, and features some experimental hints in the output for .desktop files that could possibly be improved. Those hints are experimental since I'm unsure if they will really help, or just annoy people (note that they can be ignored with the --no-hints option). At the moment, they only deal with categories, but I guess it shouldn't be hard to find more hints to add (such as hey, you're missing an icon!).

Of course, while working on desktop-file-utils, I took a look at some patches and issues that were recently discussed on the xdg mailing list, and pushed some changes to the menu specification. I'm a bit sad about the fact that nearly nobody is actively working on most specs (blaming myself too, since I look at patches/issues only a few times a year) and that feedback about the proposed changes is rare (these days, I'd say getting two or more people to approve a change is an exception). It'd be great to have a few people step up and bring new energy to this effort!

August is a busy month for birthdays!

This all starts with openSUSE, on August 9th. Seven years ago, the development of SUSE Linux opened up and openSUSE was born. The openSUSE project is actually pretty young, compared to the other projects delivering distributions. But it has 20-years old roots... I joined the project in February 2008, and I've seen the community grow and become more and more involved and, more importantly to me, in charge.

On August 15th, we celebrate the birthday of the GNOME project. Miguel announced the GNU Network Object Model Environment Desktop project fifteen years ago. I'm happy the letters in GNOME don't stand for anything anymore ;-) It's been a long ride, with the great GNOME 1.0 release in 1999 (let's be honest, it was crappy by today's standards — I tried GNOME back then, and quickly gave up), the GNOME 2.0 release in 2002 (I joined the project around that time, I still remember the excitement in the community) and the recent GNOME 3.0 release in 2011 (I can't believe I wrote the 3.0 plan more than three years ago already...). Even though I'm less involved nowadays, GNOME is my family.

And finally, on August 16th, Debian reaches a new milestone. In 1993, the imminent release of the first version was announced, which makes the project nineteen years old now. I've always loved Debian, and I've long wondered whether I should become a Debian Developer, but I never made the jump as I chose to focus on upstream activities instead for my free time. And then I joined openSUSE. But it's never too late, so who knows, maybe one day...

I use what those three projects deliver daily, literally. Many thanks to everyone who made and still make this possible!

Last month, I got a new job! After three years in the openSUSE Boosters team, I joined the SUSE Cloud team. I'm now working on OpenStack and on SUSE Cloud itself. Quite a big change!

I had planned a long time ago that the release of GNOME 3.0 would be a good time for me to look at what's next. When it went out, I actually took a few months to cool down a bit (it was pretty much needed), and also have some good fun with openSUSE. But after a while, this desire of trying something new came back: I had been working on the desktop for nearly ten years, and on a distribution for four years. Those were exciting years, but at the end, it started to feel like, you know, work. I wanted to stay involved in GNOME, in the free desktop in general, in openSUSE, in cross-distro collaboration: this is not just work and this should not be just work. I didn't want to slowly move to doing stuff while not caring anymore. This is how I found out that I needed to go back to the early days and contribute in my free time again :-)

There was still the question of, well, work. I started looking around, and I had some good discussions with several people about what to do next (thanks to everyone who took some time for this!). i must admit I changed my mind several times. I was not necessarily looking for a developer position (quite the contrary, actually), as I knew that for me to be motivated for a new project as a developer, the project had to be one that I could care about, one that has a free software community around it and one that would get me out of my comfort zone (so not on the desktop nor on a distro) — yeah, not easy :-) But at some point, SUSE had this cool developer position related to OpenStack. Good timing. (Btw, we're still hiring!)

It's been great so far; of course, you need to ignore the buzz words ;-) I wanted a new challenge and I wanted to get out of my comfort zone, I got served: new project, new community, new code, etc. It didn't help that the hard disk in my laptop decided it was the perfect moment to die, and that Lenovo took weeks to send me a replacement disk (finally got it yesterday). But now I'm all set, so let's have fun!

I arrived this morning in Geneva, for the RMLL 2012, the biggest french-speaking community-oriented event every year. It's the first time the RMLL move out of France, and it's also my first time where I actually stay in Switzerland for a few days instead of being there just for a flight connection. Good to go to foreign countries and still speak French, but it'd be even better if we could use euro to pay ;-)

This year again, I'm co-chairing a Communities track with Michael Scherer. We wanted to restrict the track to two days, but we had to add a third day to accept all talks we wanted to see in. In this track, we obviously have talks related to several french-speaking-specific organizations or projects, but we also have talks about communities and freedom in general, as well as talks presenting some theoretical approaches to communities.

The first day is nearly over, and I'm pleasantly surprised by the content: it's even more interesting than what I expected, and there is good discussion between the audience and the various speakers. Some highlights:

• The presentation about Sigmah, for instance, showed some fascinating work in the world of NGOs.

• Learning more about the challenges faced by LinuxFr.org (very popular free software news website) was also eye-opening, as it reflects on the evolution of the free software community in general: difficulties to get people to contribute, people getting older, social issues, etc.

• I was also interested in what EnVenteLibre is doing: sharing the infrastructure needed for online shopping so that free software organizations don't have to each reinvent the wheel can make a big difference for those organizations.

Unfortunately, co-chairing a track has a side-effect: much less time to chat with people or stay in booths. If you want to discuss GNOME or openSUSE, though, just come and say hi!

Oh, and thanks to SUSE for letting me go to this event: it's really amazing to have an employer willing to help you contribute to the community world!