microservices

Martin Fowler chats about the work he’s done over the last couple of years on the rewrite of the original Refactorings book. He discusses how this thought process has changed and how that’s affected the new edition of the book. In addition to discussing Refactors, Martin and Wes discuss his thoughts on evolutionary architecture, team structures, and how the idea of refactors can be applied in larger architecture contexts.

Why listen to this podcast:

 -    Refactoring is the idea of trying to identify the sequence of small steps that allows you to make a big change. That core idea hasn’t changed.
 - Several new refactorings in the book deal with the idea of transforming data structures into other data structures, Combine Functions into Transform for example.
 - Several of the refactorings were removed or not added to the book in favor of adding them to a web edition of the book.
 - A lot of the early refactorings are like cleaning the dirt off the glass of a window. You just need them to be able to see where the hell you are and then you can start looking at the broader ones.
 - Refactorings can be applied broadly to architecture evolution. Two recent posts How to break a Monolith into Microservices, by Zhamak Dehghani,  and How to extract a data-rich service from a monolith by Praful Todkar on MartinFowler.com deal with this specifically.
 - Evolutionary architecture is a broad principle that architecture is constantly changing. While related to Microservices, it’s not Microservices by another name. You could evolve towards or away from Microservices for example.

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Show Notes

Martin Fowler Discusses New Edition of Refactoring, Along With Thoughts on Evolutionary Architecture

Today on The InfoQ Podcast, Wes talks with Joe Beda. Joe is one of the co-creators of Kubernetes. What started in the fall of 2013 with Craig McLuckie, Joe Beda, and Brendan Burns working on cloud infrastructure has become the default orchestrator for cloud native architectures. Today on the show, the two discuss the recent purchase of Heptio by VMWare, the Kubernetes Privilege Escalation Flaw (and the response to it), Kubernetes Enhancement Proposals, the CNCF/organization of Kubernetes, and some of the future hopes for the platform.

Why listen to this podcast:

 - Heptio, the company Joe and Craig McLuckie co-founded, viewed themselves as not a Kubernetes company, but more of a cloud native company. Joining VMWare allowed the company to continue a mission of helping people decouple “moving to cloud/taking advantage of cloud” patterns (regardless of where you’re running).

 - Re:Invent 2017 when EKS was announced was a watershed moment for Kubernetes. It marked a time where enough customers were asking for Kubernetes that the major cloud providers started to offer first-class support.

 - Kubernetes 1.13 included a patch for the Kubernetes Privilege Escalation Flaw Patch. While the flaw was a bad thing, it demonstrated product maturity in the way the community-based security response.

 - Kubernetes has an idea of committees, sigs, and working groups. Security is one of the committees. There were a small group of people who coordinated the security response. From there, trusted sets of vendors validated and test patches. Most of the response is based on how many other open source projects handle security response.

 - Over the last couple of releases, Kubernetes has introduced a Sig Architecture special interest group. It’s an overarching review for changes that sweep across Kubernetes. As part of Sig Architecture, the Kubernetes community has introduced Kubernetes Enhancement Proposal process (or KEPs). It’s a way for people to propose architectural changes to Kubernetes.

 - The goal of the CNCF is to curate and provide support to a set of projects (of which Kubernetes is one). The TOC (Technical Oversight Committee) decides which projects are going to be part of the CNCF and how those projects are supported.

 - Kubernetes was always viewed by the creators as something to be build on. It was never really viewed as the end goal.

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microservices

Slavomir Hudak