Tagged: open-source

Release Management Tooling: Past, Present, and Future

Release Management Tooling: Past, Present, and Future

As I was interviewing a potential intern for the summer of 2015 I realized I had outlined all our major tools and what the next enhancement for each could be but that this wasn’t well documented anywhere else yet.

By coming to Release Management from my beginnings as a Release Engineer, I’ve been a part of seeing our overall release automation improve across the whole spectrum of what it takes to put out packaged software for multiple platforms and we’ve come a long way so this post is also intended to capture how the main tools we use have gotten to their current state as well as share where they are heading.


Past: Release Manager on point for a release sent an email to the Release-Drivers mailing list with an hg changeset, a version, build number, and this was the “go” to build for Release Engineering to take over and execute a combination of automated/manual steps (there was even a time when it was only said in IRC, email became the constant when Joduinn pushed for consistency and a traceable trail of events). Release Engineers would update a config files & locale changes, get them attached to a bug, approved, uplifted, then go reconfigure the build machines so they could kick off the release build automation.

Present: Ship-It is an app developed by Release Engineering (bhearsum) that allows a Release Manager to input the configurations needed (changeset, version, build number, partials to be created, l10n changesets) all in one place, and on submit the build automation picks up this change from a db, reconfigures the build machine, and triggers builds. When all goes well, there are zero human hands between the “go” and the availability of builds to QA.

Future: In two parts:
1. To have a simple app that can take a list of bug numbers and check them for landing to {branch} (where branch is Beta, Release, or ESR), once all the bug numbers listed have landed, check tree herder for green status on that last changeset, submit to Ship-It if builds are successful. Benefits: hands off even sooner, knowing that all the important fixes are on the branch in question, and that the tree is totally green prior to build (sometimes we “go” without all the results because of human timing needs).
2. Complete End-To-End Release Checklist, dynamically updated to show what stage a release job is at and who’s got the ball in their court. This should track from buglist added (for the final landings a RM is waiting on) all the way until the release notes are live and QA signs off on updates for the general release being in the wild.

Nucleus (aka Release Note App)

Past: Oh dear, you probably don’t even want to know how our release notes used to be made. It’s worse than sausage. There was a sqlite db file, a script that pulled from that db and generated html based on templates and then the Release Manager had to manually re-order the html to get the desired appearance on final pages, all this was then committed to SVN and with that comes the power to completely break mozilla.org properties. Fun stuff. Really. Also once Release Management was more than just one person we shared this sqlite db over Dropbox which had some fun quirks, like clobbering your changes if two people had the file open at the same time. Nowhere to go but up from here!

Present: Thanks to the web production team (jgmize, hoosteeno, craigcook, jbertsch) we got a new Django app in place that gives us a proper databse that’s redundant, production quality, and not in our hands. We add in release notes as well as releases and can publish notes to both staging and production without any more commits to SVN. There’s also an API that can be scripted to.

Future: The future’s so bright in this area, let me get my shades. We have a flag in Bugzilla for relnote-firefox where it can get set to ? when something is nominated and then when we decide to take on that bug as a release note we can set it to {versionNum}+. With a little tweaking on the Bugzilla side of things we could either have a dedicated field for “release-note text” or we could parse it out of a syntax in a comment (though that’s gonna be more prone to user error, so I prefer the former) and then automatically grab all the release notes for a version, create the release in Nucleus, add the notes, publish to staging, and email the link around for feedback without any manual interference. This also means we can dynamically adjust release notes using Bugzilla (and yes, this will need to be really cautiously done), and it makes sure that our recent convention of having every release note connect to a bug persist and become the standard.

Release Dash

Past: Our only way to visualize the work we were doing was a spreadsheet, and graphs generated from it, of how many crasher bugs were tracked for a version, how many bugs tracked/fixed over the course of 18 weeks for a version, and not much else. We also pay attention to the crash rate at ship time, whether we had to do a dot release or chemspill, and any other release-version-specific issues are sort of lost in the fray after we’re a couple of weeks out from a release. This means we don’t have a great sense of our own history, what we’re doing that works in generating a more stable/successful release, and whether a release is in fact ready to go out the door. It’s a gamble, and we take it every 6 weeks.

Present: We have in place a dashboard that is supposed to allow us to view the current crash data, select Talos (performance) data, custom bug queries, and be able to compare a current release coming down the pipe to previous releases. We do not use this dashboard yet because it’s been a side project for the past year and a half, primarily being created and improved upon by fabulous – yet short-term – interns at Mozilla. The dashboard relies on Elastic Search for Bugzilla data and the cluster it points to is not always up. The dash is written in php and that’s no one’s strong suit on our current team, our last intern did his work by creating a Python Flask app that would work into the current dash. The present situation is basically: we need to work on this.

Future: In the future, this dashboard will be robust, reliable, production-quality (and supported), and it will be able to go up on Mozilla office screens in the dashboard rotation where it will make clear to any viewer:
* Where we are in the current release cycle
* What blockers remain for releas
* How our stability is (over/under acceptable rates)
* If we’re meeting performance expectations
And hopefully more. We have to find more ways to get visibility into issues a release might hit once it’s with the larger population. I’d love to see us get more of our Beta user’s feedback by asking for it on specific features/fixes, get a broader Beta audience that is more reflective of our overall release population (by hardware, location, language, user types) and then grow their ability to report issues well. Then we can find ways to get that front and center too – including to developers because they are great at confirming if something unusual is happening.

What Else?

Well, we used to have an automated script that reminded teams of their open & tracked bugs on Beta/Aurora/Nightly in order to provide a priority order that was visible to devs & their managers. It’s a finicky script that breaks often. I’d like to see that replaced with something that’s not just a cronjob on my personal VPS. We’re also this close to not needed to update product-details (still in SVN) on every release. The fact that the Release Management team has the ability to accidentally take down all mozilla.org properties when a mistake is made submitting svn propedits is not desireable or necessary. We should get the heck away from that asap.

We’ll have more discussions of this in Portland, especially with the teams we work closely with and Sylvestre and I will be talking up our process & future goals at FOSDEM in 2015 as well as following it with a work week in Paris where we can put our heads down and code. Next summer we get an intern again and so we’ll have another set of skilled hands to put on tooling & web service improvements.

Always improving. Always automating. These are the things that make me excited for the next year of Release Management.

New to Bugzilla

I believe it was a few years ago, possibly more, when someone (was it Josh Matthews? David Eaves) added a feature to Bugzilla that indicated when a person was “New to Bugzilla”. It was a visual cue next to their username and its purpose was to help others remember that not everyone in the Bugzilla soup is a veteran, accustomed to our jargon, customs, and best practices. This visual cue came in handy three weeks ago when I encouraged 20 new contributors to sign up for Bugzilla. 20 people who have only recently begun their journey towards becoming Mozilla contributors, and open source mavens. In setting them loose upon our bug tracker I’ve observed two things:

ONE: The “New to Bugzilla” flag does not stay up long enough. I’ll file a bug on this and look into how long it currently does stay up, and recommend that if possible we should have it stay up until the following criteria are met:
* The person has made at least 10 comments
* The person has put up at least one attachment
* The person has either reported, resolved, been assigned to, or verified at least one bug

TWO: This one is a little harder – it involves more social engineering. Sometimes people are might be immune to the “New to Bugzilla” cue or overlook it which has resulted in some cases there have been responses to bugs filed by my cohort of Ascenders where the commenter was neither helpful nor forwarding the issue raised. I’ve been fortunate to be in-person with the Ascend folks and can tell them that if this happens they should let me know, but I can’t fight everyone’s fights for them over the long haul. So instead we should build into the system a way to make sure that when someone who is not New to Bugzilla replies immediately after a “New to Bugzilla” user there is a reminder in the comment field – something along the lines of “You’re about to respond to someone who’s new around here so please remember to be helpful”. Off to file the bugs!

About to do some major learning

Tomorrow morning the first ever Ascend Project kicks off in Portland, OR.  I just completed a month-long vacation where we drove from San Francisco out to the Georgian Bay, Ontario (with a few stops along the way including playing hockey in the Cleveland Gay Games) and back again through the top of the US until we arrived here in Portland.  I’m staying in this city for 6 weeks, will be going in to the office *every* day, and doing everything I can to guide & mentor 20 people in their learning on becoming open source contributors.

Going to do my best to write about the experience as this one is all about learning what works and what doesn’t in order to iterate and improve the next pilot which will take place in New Orleans in 2015. It’s been almost a year since I first proposed this plan and got the OK to go for it.  See http://ascendproject.org for posts on the process so far and for updates by the participants.