Containers. One of those nasty terms, like metadata (ok - maybe you had to move in the odd circles I did for that one to resonate), cloud, or big data. To some, the solution to every problem. To others, yet another unforgivable explosion of over-exuberant hype that should be ignored at all costs. And, like so many things, the truth lies somewhere in the middle.
Containers are an important component in broader efforts to transform the way in which an enterprise builds, tests, deploys, and scales its applications. Particularly, today, its customer-facing systems of engagement. But they're not the answer to every problem, and they don't replace all your virtual machines, mainframes, and other infrastructure.
Most enterprise CIOs, today, have probably heard of containers... or Docker. And, for most of you, there will be a group or individual inside your organisation loudly singing containers' praises. There will be an equally vocal group or individual, pointing to every factoid supporting their view that the container emperor has nothing on.
My latest Brief takes a look at some of the ways containers are being used, and argues that CIOs need to pay attention - now. That's not to say you should wholeheartedly embrace containers in everything you do. But you do need to ensure you're aware of their strengths, and track the rapid evolution in the underlying technologies. Some pieces are even beginnint to be standardised, between competing companies.
And, just to see if the metadata crowd are still reading... Z39.50!
In a world where OS and low-level platform software is considered unfashionable, it was refreshing to see the Linux glitterati and cognoscenti descended on Boston for the last three days, 5000 strong and genuinely passionate about Linux. I spent a day there mingling with the crowds in the eshibit halls, attending some sessions and meeting with Red Hat management. Overall, the breadth of Red Hat’s offerings are overwhelming and way too much to comprehend ina single day or a handful of days, but I focused my attention on two big issues for the emerging software-defined data center – containers and the inexorable march of OpenStack.
Containers are all the rage, and Red Hat is firmly behind them, with its currently shipping RHEL Atomic release optimized to support them. The news at the Summit was the release of RHEL Atomic Enterprise, which extends the ability to execute and manage containers over a cluster as opposed to a single system. In conjunction with a tool stack such as Docker and Kubernates, this paves the way for very powerful distributed deployments that take advantage of the failure isolation and performance potential of clusters in the enterprise. While all the IP in RHEL Atomic, Docker and Kubernates are available to the community and competitors, it appears that RH has stolen at least a temporary early lead in bolstering the usability of this increasingly central virtualization abstraction for the next generation data center.
The Cloud Foundry Foundation held its 2015 Summit recently in Santa Clara, attracting 1,500 application developers, operation experts, technical and business managers, service providers, and community contributors. After listening to the presentations and discussions, I believe that Cloud Foundry —one of the major platform-as-a-service (PaaS) offerings —is making a strategic shift from its traditional focus on application staging and execution to a new emphasis on micro-service composition. This is a key factor that will help companies gain the agility they need for both technology management and business transformation. Here’s what I learned:
Containers are critical for micro-service-based agility. Container based micro-services are getting momentum: IBM presented their latest Bluemix UI micro-services architecture; while SAP introduced their latest practice on Docker. Containers can encapsulate fine-grained business logic as micro-services for dynamic composition, which will greatly simplify development and deployment of applications, helping firms achieve continuous delivery to meet dynamic business requirements. This is why Forrester believes that the combination of containers and micro-services will prove irresistible for developers.
The rise of the DevOps role in the enterprise and the increasing requirements of agility beyond infrastructure and applications make the platform-as-a-service (PaaS) market one to watch for both CIOs and enterprise architecture professionals. On December 9, the membership of Cloud Foundry, a major PaaS open source project, announced the formation of the Cloud Foundry Foundation.
In my view, this is as important as the establishment of OpenStack foundation in 2012, which was a game-changing move for the cloud industry. Here’s why:
PaaS is becoming an important alternative to middleware stacks. Forrester defines PaaS as a complete application platform for multitenant cloud environments that includes development tools, runtime, and administration and management tools and services. (See our Forrester Wave evaluation for more detail on the space and its vendors.) In the cloud era, it’s a transformational alternative to established middleware stacks for the development, deployment, and administration of custom applications in a modern application platform, serving as a strategic layer between infrastructure-as-a-service (IaaS) and software-as-a-service (SaaS) with innovative tools.
Cloud Foundry is one major open source PaaS software. Cloud Foundry as a technology was designed and architected by Derek Collison and built in the Ruby and Go programming languages by Derek and Vadim Spivak (wiki is wrong!). VMware released it as open source in 2011 after Derek joined the company. Early adopters of Cloud Foundry include large multinationals like Verizon, SAP, NTT, and SAS, as well as Chinese Internet giants like Baidu.