EditorsAbout the SiteComes vs. MicrosoftUsing This Web SiteSite ArchivesCredibility IndexOOXMLOpenDocumentPatentsNovellNews DigestSite NewsRSS

06.10.11

Q&A With Puppet Labs’ James Turnbull Regarding Pro Puppet

Posted in Free/Libre Software, Interview at 12:39 am by Dr. Roy Schestowitz

[As ODF | As PDF]

Introduction:

As someone who deals with Puppet quite a lot at work, I had the great pleasure of speaking to longtime open source pundit James Turnbull, who recently co-authored his latest book “Pro Puppet” through Apress Media with colleague Jeffrey McCune of Puppet Labs. This is his fifth technical book about open source software. “Pro Puppet” is an in-depth book about how to install, use, and develop Puppet, the popular open source systems management platform used by organizations including Twitter, Rackspace, Digg, Genentech and more.

Q&A with James Turnbull

1. What in your estimation is the number of servers (including virtual instances) that run Puppet at any level of capacity?

A: This is a question that I ponder every few months. Our largest installation is around 50,000 nodes and we have several more at the 25,000 to 50,000 node range. Given the size of the community, I think we’ve quite easily reached the million plus node mark.

“Given the size of the community, I think we’ve quite easily reached the million plus node mark.”
      –James Turnbull
2. Throughout your work on the book, have you had a chance to
measure/survey the operating systems on which Puppet is deployed? Have you any insight regarding the distribution of usage?

A: Puppet Labs did a survey earlier in the year and gathered some data about usage. Based on that and interactions with the community I think we can pretty comfortably say that our core operating systems are Linux-based with Red Hat (and derivatives) and Ubuntu/Debian being the biggest platforms. The next largest block is Solaris with a smaller number of OSX, *BSD, HP UX and pSeries/AIX systems also being represented.

3. There is a common perception that Free/Open Source software suffers from deficient documentation and lack of support (despite this being the business model of many companies). How do you challenge these types of allegations?

A: This is a common perception that regularly makes me laugh. I usually respond that all software has deficient documentation and lacks support! It’s true some open source tools lack documentation but others, for example MySQL, have exemplary documentation. Some open source software communities are hard to get help from and others fall over themselves to help people out. I’m always immensely proud of how the Puppet community, which is largely made up of some of the busiest people in IT – sysadmins, goes out of its way to help newcomers and share knowledge.

Of course this same problem is present across enterprise and commercial software. Otherwise authors wouldn’t be able to sell books offering insights into using commercial software. :) It’s even perhaps somewhat worse for enterprise software where submitting a bug request can lack transparency and where examples of how others have solved issues can be hard to find or perceived as proprietary information.

4. How can your book address or assist a crowd of people with no prior knowledge of UNIX/Linux and how can it assist those who are familiar with everything but Puppet?

A: Pro Puppet is aimed at users with some Linux/Unix knowledge, albeit at a fairly basic level — a few friends and I created an earlier book called Pro Linux System Administration designed to teach someone with zero Linux knowledge how to be a Linux sysadmin. Pro Puppet is aimed at junior and mid-level sysadmins looking to get started with Puppet and take them through to advanced topics like scaling and extending Puppet.

5. What impact do you foresee the licensing changes from the GPL to the Apache licence as having?

A: Both the GPL and Apache licenses are free and open source licenses and we’re very much staying true to our open source roots. However where we are with Puppet now we need a license that people, for whatever reasons, consider easier to integrate with. In the open source world that license is Apache and we’re already starting to see Puppet being used heavily as an integrated tools in Cloud and Infrastructure/Platform as a service (IAAS, PAAS) offerings as a result.

6. Manual operators of Puppet seem to rely mostly on the initial setup. What proportion of the work would you say a Puppet expert needs to invest in setting up the software compared to the overall lifetime of a box and its operation?

A: With Puppet, the large proportion of the work you need to do to get started is up front. Once you’ve done that work setting up new boxes becomes a routine and easy task. Maintaining and managing them is also fast and simple. Indeed, one of the benefits of Puppet is that not only do you get fast and automated setup, but you can make sure they stay the way you configured them for as long as you need. That ability to stem the tide of configuration drift and limit the potential for human error and entropy causing issues is an enormous timesaver.

7. What is the most eccentric/fascinating/uncommon use of Puppet that you have come across?

A: One that fascinated me recently is the Deutsche Flugsicherung, the German air traffic control network, who use Puppet to ensure all the operator workstations and tower servers are up to date. They have a very strict and structured work flow and an interesting deployment model where any configuration drift is anathema. I also find Air Traffic Control really interesting (I’m a geek it’s true) so it was pretty exciting to see Puppet being used in such an interesting arena.

8. Puppet functionality lags behind in platforms such as Windows. What would you advise organisations that choose to run it on this platform?

A: We’re actively working on Microsoft Windows support but we’re not there yet. What we’d love to see is people telling us what they need. I’m not primarily a Windows guy so I actually don’t know what the pain points are for Windows sysadmins. If a few of them could tell us “If you automated these 4, 5, 10 things that would make my job easier!” then that would help us structure that future support.

9. How does Puppet compare to its proprietary counterparts?

A: I think the key difference is time to value or as I prefer “how long before I’m doing something useful”. Often when you install one of the larger proprietary tools it can take significant time and people to deliver value or to get things done. We find people can download Puppet, install it and be doing something useful in a matter of minutes or an hour rather than months.

“One of the new features in Puppet 2.6.0 though was a Ruby DSL for Puppet. This allows any developer (and sysadmins too) to write their Puppet manifests in Ruby.”
      –James Turnbull
10. If one receives proper training or learns from your book, how would the difficulty of using Puppet compare to the difficulty of using other products that are out in the market?

A: I think Puppet is pretty easy to use (but I’m also biased!). It does have rough edges and things that are hard to get your head around though. One thing I think we do really well in the book is build on knowledge. You can start simple and grow into the more complex topics. I think having that sort of resource makes it really easy for people to learn how to use Puppet. The other resource I’m really excited about is a new section in the documentation called Learning Puppet (http://docs.puppetlabs.com/learning/) that offers a similar “grow into using it” experience.

I think as a result of having the book plus documentation and training available that makes Puppet a lot less difficult to understand than some of the alternatives out there.

11. How would you say the Puppet learning curve compares if a programmer and non-programmer were both faced with the task of learning it?

A: I recently came to the conclusion that I now spend more time cutting code than I do being a sysadmin which is a big change in my life. As a result I’ve been thinking about how both groups approach learning and problems. I think for a lot of sysadmins Puppet is very easy to engage with. Puppet’s language is a logical extension for people use to dealing with configuration files and scripts.

For developers that’s perhaps not as natural a progression and some have struggled in the past with learning Puppet. One of the new features in Puppet 2.6.0 though was a Ruby DSL for Puppet. This allows any developer (and sysadmins too) to write their Puppet manifests in Ruby. This approach is something that may make more sense and make it easier for developers to learn Puppet.

As a result of this Ruby interface (which we cover in the book too) I think the learning curve for both non-developers and developers is rapidly approaching parity.

Conclusion:

We would like to thank James for being available for this interchange of insights and we hope his literature will spread Puppet to more and more companies, aiding the spread of Free/open source in systems management. Puppet sure helps the company that I work for.

Share this post: These icons link to social bookmarking sites where readers can share and discover new web pages.
  • Digg
  • del.icio.us
  • Reddit
  • co.mments
  • DZone
  • email
  • Google Bookmarks
  • LinkedIn
  • NewsVine
  • Print
  • Technorati
  • TwitThis
  • Facebook

If you liked this post, consider subscribing to the RSS feed or join us now at the IRC channels.

Pages that cross-reference this one

What Else is New


  1. With UPC Dead for Battistelli's Entire Remaining Term, No Reason for the EPO or the Administrative Council to Keep Battistelli Around

    Thoughts about what happens to the EPO's leadership after 'Brexit' (British exit from the EU), which severely undermines Battistelli's biggest project that he habitually used to justify his incredible abuses



  2. Links 24/6/2016: Xen Project 4.7, Cinnamon 3.0.6

    Links for the day



  3. Benoît Battistelli Should Resign in Light of New Leak of Decision in His Vendetta Against Truth-Telling Judge (Updated)

    Benoît Battistelli continues to break the EPO's own rules, not just national laws, as a new decision helps reveal



  4. Fake Patents on Software From Fake Australian 'Inventor' of Bitcoin and the Globally-Contagious Nature of EPO Patent Scope

    News from Australia regarding software patents that should not be granted and how patent lawyers from Australia rely on European patent law (EPO and UK-IPO) for guidance on patent scope



  5. Patent Lawyers Love (and Amplify) Halo and Enfish, Omit or Dismiss Cuozzo and Alice

    By misinterpreting the current situation with respect to software patents and misusing terms like "innovation" patent lawyers and others in the patent microcosm hope to convince the public (or potential clients) that nothing in effect has changed and software patents are all fine and dandy



  6. Looks Increasingly Plausible That Battistelli is Covering up Bogus and/or Illegally-Obtained 'Evidence' From the EPO's Investigative Unit

    Why we believe that Benoît Battistelli is growingly desperate to hide evidence of rogue evidence-collecting operations which eventually landed himself -- not the accused -- in a catastrophic situation that can force his resignation



  7. As Decision on the UK's EU Status Looms, EPO Deep in a Crisis of Patent Quality

    Chaotic situation at the EPO and potential changes in the UK cause a great deal of debate about the UPC, which threatens to put the whole or Europe at the mercy of patent trolls from abroad



  8. Another Demonstration by European Patent Office (EPO) Staff on Same Day as Administrative Council's Meeting

    SUEPO (staff union of the EPO) continues to organise staff actions against extraordinary injustice by Benoît Battistelli and his flunkies whom he gave top positions at the EPO



  9. Links 23/6/2016: Red Hat Results, Randa Stories

    Links for the day



  10. Interview With FOSSForce/All Things Free Tech

    New interview with Robin "Roblimo" Miller on behalf of FOSSForce



  11. Links 22/6/2016: PulseAudio 9.0, GNOME 3.21.3 Released

    Links for the day



  12. IP Europe's UPC Lobbying and the EPO Connection

    The loose but seemingly ever-growing connections between AstroTurfing groups like IP Europe (pretending to represent SMEs) and EPO staff which is lobbying-centric



  13. EPO “Recruitment of Brits is Down by 80%”

    Letter says that “recruitment of Brits is down by 80%” and "the EPO lost 7% of UK staff in one year"



  14. The Conspiracy of Patent Lawyers for UPC and Battistelli's Role in Preparing by Firing People

    The parasitic firms that lobby for the UPC and actually create it -- firms like those that pass money to Battistelli's EPO -- are doing exactly the opposite of what Europe needs



  15. Patent Lawyers, Having Lost Much of the Battle for Software Patents in the US, Resort to Harmful Measures and Spin

    A quick glance at how patent lawyers and their lobbyists/advocates have reacted to the latest decision from the US Supreme Court (Justice Breyer)



  16. Links 21/6/2016: Fedora 24 and Point Linux MATE 3.2 Officially Released

    Links for the day



  17. Supreme Court on Cuozzo v Lee Another Major Loss for Software Patents in the United States

    Much-anticipated decision on the Cuozzo v Lee case (at the highest possible level) serves to defend the appeal boards which are eliminating software patents by the thousands



  18. As Alice Turns Two, Bilski Blog Says 36,000 (Software) Patent Applications Have Been Rejected Thanks to It

    A look back at the legacy of Alice v CLS Bank and how it contributed to the demise of software patents in the United States, the birthplace of software patents



  19. EPO Self-Censorship by IP Kat or Just Censorship of Opinions That IP Kat Does Not Share/Accept (Updated)

    ree speech when it's needed the most (EPO scandals) needs to be respected; or why IP Kat shoots itself in the foot and helps the EPO's management by 'sanitising' comments



  20. Caricature: Bygmalion Patent Office

    The latest cartoon regarding Battistelli's European Patent Office



  21. Links 21/6/2016: GNU/Linux in China's HPC, Linux 4.7 RC4

    Links for the day



  22. Under Battistelli's Regime the EPO is a Lawless, Dark Place

    How the EPO's Investigative Unit (IU) and Control Risks Group (CRG), which is connected to the Stasi through Desa, made the EPO virtually indistinguishable from East Germany (coat of arms/emblem above)



  23. New Paper Demonstrates That Unitary Patent (UPC) is Little More Than a Conspiracy of Patent 'Professionals' and Their Self Interest

    Dr. Ingve Björn Stjerna's latest paper explains that the UPC “expert teams” are in fact not experts but people who are using the UPC as a Trojan horse by which to promote their business interests and corporate objectives



  24. Money Flying to Private Companies Without Tenders at Battistelli's EPO (by the Tens of Millions!)

    Extravagant and cushy contracts to the tune of tens of millions of Euros are being issued without public scrutiny and without opportunities to competition (few corporations easily score cushy EPO contracts while illusion of tendering persists -- for small jobs only)



  25. Patent Examiners and Insiders Acknowledge Profound Demise in Patent Quality Under Battistelli

    By lowering the quality of patents granted by the European Patent Office Battistelli hopes to create an illusion of success, where success is not measured properly and is assessed by biased firms which he finances



  26. Jericho Systems Threatens Alice, Court of Appeals for the Federal Circuit Threatens the Patent Trial and Appeal (PTAB)

    A look at the two latest threats to those who helped put an end to a lot of (if not most) software patents in the US



  27. How the Halo Electronics Case Helps Patent Trolls and How Publications Funded by Patent Trolls (IAM for Instance) Covered This

    A Supreme Court ruling on patents, its implications for software patent trolls, and how media that is promoting software patents and patent trolls covered it



  28. Patent Lawyers' Fantasy Land Where Software Patents Are Suddenly Resurrected Even When They're Not

    A quick glance at where the debate over software patents in the United States stands and how profiteers (such as patent lawyers) not only mislead the public but also bully the messengers



  29. Links 19/6/2016: Randa Over, Fedora 24 Release Soon

    Links for the day



  30. [ES] La Oficina Europea de Patentes de Battistelli Amplia su Contrato con el Nefasto FTI Consulting Para Neutralizar a los Medios, Desperdicia Millones de Euros

    Sacando a luz a lo que pasa con el presupuésto de la EPO y como es puesto “a trabajar” bajo la tiranía sin precedente de Battistelli (Eponia) justo en el corazón de Europa


CoPilotCo

RSS 64x64RSS Feed: subscribe to the RSS feed for regular updates

Home iconSite Wiki: You can improve this site by helping the extension of the site's content

Home iconSite Home: Background about the site and some key features in the front page

Chat iconIRC Channel: Come and chat with us in real time

CoPilotCo

Recent Posts