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John Wetherill

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Top Stories by John Wetherill

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, organizational structure, and overall development practices needing to take place prior to plunging into microservices. Fortunately, tooling and other supporting technologies are evolving almost as fast as the microservices practices are themselves. Platform-as-a-Service (PaaS) is at the fore... (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)

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 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)

Locking Down the Cloud By @bcferrycoder | @DevOpsSummit #DevOps #Microservices

CIOs are increasingly concerned about cloud security. And they should be. With the recent outbreak of visible breaches at high-profile organizations like Target, Anthem, and others, and the subsequent damage they cause, corporations are scrambling to make sure their cloud applications, whether on private, public, or hybrid clouds, are safe. But cloud security is complex. With ephemeral applications and services springing up around multiple data centers, with dozens or hundreds of independent microservices each with their own access mechanisms, with the widespread adoption of vir... (more)