I recently presented a webinar on What Does DevOps Culture Feel Like? in which I attempted to characterise what it feels like to work within a DevOps culture (part of the Experience DevOps workshop series).
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What Does DevOps Culture Feel Like? – Webinar
We’re giving a free webinar called What Does DevOps Culture Feel Like? at 12:00 UK time on 25 October 2013, in association with UNICOM Seminars. Register: https://www4.gotomeeting.com/register/235050679
Slides:
What Team Structure is Right for DevOps to Flourish?
Update (2022): my company Conflux now offers consulting and training around DevOps topologies and related practices like Team Topologies.
Update (2019): I have co-authored a book – Team Topologies – that adds brand new material to these (original) DevOps Topologies patterns. In the book we cover dynamic organization evolution, team interaction patterns, the strategic use of Conway’s Law, monolith decomposition, and many more topics.
See teamtopologies.com and follow us on Twitter at @TeamTopologies for updates. The book is published by IT Revolution Press (Sept 2019).
Matthew Skelton and Manuel Pais
IT Revolution Press, Sept 2019
Update (2016): A new version of these DevOps team topologies is now here: devopstopologies.com
The new version has many new topologies that we’ve encountered in the wild and we’re taking pull requests on Github for additions and changes.
The primary goal of any DevOps setup within an organisation is to improve the delivery of value for customers and the business, not in itself to reduce costs, increase automation, or drive everything from configuration management; this means that different organisations might need different team structures in order for effective Dev and Ops collaboration to take place.
So what team structure is right for DevOps to flourish? Clearly, there is no magic conformation or team topology which will suit every organisation. However, it is useful to characterise a small number of different models for team structures, some of which suit certain organisations better than others. By exploring the strengths and weaknesses of these team structures (or ‘topologies’), we can identify the team structure which might work best for DevOps practices in our own organisations, taking into account Conway’s Law.
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Operability can Improve if Developers Write a Draft Run Book
The run book (or system operation manual) is traditionally written by the IT operations (Ops) team after software development is considered complete. However, this typically leads to operability problems being discovered with the software, operational concerns having been ignored, forgotten, or not fully addressed by the development (Dev) team. If the software development team writes a draft run book or draft operation manual, many of the operational problems typically found during pre-live system readiness testing can be caught and corrected much earlier. Because the development team needs to collaborate with the operations team in order to define and complete the various draft run book details, the operations team also gains early insight into the new software. Channels of communication, trust, and collaboration are established between the traditionally siloed Dev and Ops teams, which can help to establish and strengthen a DevOps approach to building and running software systems.
I…
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Leaving the Platform – Branching and Releasing for Independent Subsystems
For several years, much of the code for the systems at thetrainline.com has been versioned and deployed together as a single ‘platform’. Recently, we have begun to divide up the platform into smaller chunks, to enable us to deliver some parts more frequently and rapidly, leaving other parts to evolve more slowly (as needed). Moving from a single version number for all subsystems to multiple version numbers for independent subsystems has implications for how code is built and released; this blog post outlines some of the work we have done so far in this area.
My colleague Owain Perry and I recently presented on this topic at the London Continuous Delivery meetup group (http://londoncd.org.uk/) and the slides we showed relate to the details in this post:
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Matthew Skelton 