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John Wetherill

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Top Stories by John Wetherill

In the first four parts of this series I presented an introduction to microservices along with a handful of emerging microservices patterns, and a discussion of some of the downsides and challenges to using microservices. The most recent installment of this series looked at ten ways that PaaS facilitates microservices development and adoption. In this post I'll cover some words of wisdom, advice intended for individuals, teams, and organizations considering a move to microservices. I've gleaned this advice from the various articles and meetups mentioned above, from dozens of discussions with architects and developers at a handful of organizations who are moving forward with microservices, as well as from my experience building a couple microservices-based systems before microservices was a thing. Words to the Wise / Words to the Weary Start small, move fast Don't e... (more)

Virtualization, an Implementation Detail By @bcferrycoder | @CloudExpo #DevOps #Microservices

In the Cloud, Virtualization Is an Implementation Detail Virtualization is everywhere. Enormous and highly profitable companies have been built on nothing but virtualization. And nowhere has virtualization made more of an impact than in Cloud Computing, the rampant and unprecedented adoption of which has been the direct result of the wide availability of virtualization software and techniques that enabled it. But does the cloud actually require virtualization? I think not. What Makes Cloud Computing Cloud Computing? According to NIST Cloud Computing has a handful of defining chara... (more)

PaaS and #Microservices Part 3 By @bcferrycoder | @ DevOpsSummit #DevOps #PaaS

This is part of the ever-expanding "Microservices and PaaS" blog series covering the rapidly evolving use of microservices in modern cloud software projects. Parts I and II introduced microservices concepts and discussed patterns and practices being spearheaded by microservices pioneers, notably Netflix, who were represented at a recent microservices meetup that was the genesis of this series. Part III presented a list of challenges and pitfalls that adopters of microservices face. This list is formidable and somewhat daunting; pointing out the significant changes in mindset, or... (more)

PaaS and #Microservices: Part 6 By @bcferrycoder | @DevOpsSummit #DevOps #PaaS

This is the final installment of the six-part series Microservices and PaaS. It seems like forever since I attended Adrian Cockroft's meetup focusing on microservices. It's actually only been a couple of months, but much has happened since then: countless articles, meetups, and conference sessions focusing on microservices have been delivered, many meetings and design efforts at companies moving towards a microservices-based approach have been endured, and five installments of this blog series have been written. There's no doubt that microservices, like containerization and DevOps... (more)

Bringing Shadow IT into the Light By @bcferrycoder | @CloudExpo #Cloud

Going Rogue with PaaS: Bringing Shadow IT into the Light In a recent blog I suggested that it's okay to install PaaS on a couple of PCs, and run them "under the desk" for cloud development. This immediately provoked a comment from a reader who said "You're not endorsing Shadow IT are you?" Well in fact I am. By the end of this blog you will too. What Is Shadow IT? Shadow IT, aka Rogue IT, has a bad rep. And it probably should. It can compromise security, increase IT costs, result in dangerous leakage of data and IP, and get people fired. It also generates friction and thus expands... (more)