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Balaji Subramaniam kubernetes.io

Kubernetes' CPU Manager

Feature highlights of the beta CPU Manager in Kubernetes from Balaji Subramaniam, Cloud Software Engineer and Connor Doyle, Cloud Software Architect at Intel AI… A single compute node in a Kubernetes cluster can run many pods and some of these pods could be running CPU-intensive workloads. In such a scenario, the pods might contend for the CPU resources available in that compute node. When this contention intensifies, the workload can move to different CPUs depending on whether the pod is throttled and the availability of CPUs at scheduling time. There might also be cases where the workload could be sensitive to context switches. In all the above scenarios, the performance of the workload might be affected. If your workload is sensitive to such scenarios, then CPU Manager can be enabled to provide better performance isolation by allocating exclusive CPUs for your workload.

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Cassandra Salisbury blog.golang.org

Portable cloud programming with Go cloud

This post covers how Go Cloud works, how it got started, and how to get involved. Eno Compton and Cassandra Salisbury write on the Go blog: Today, the Go team at Google is releasing a new open source project, Go Cloud, a library and tools for developing on the open cloud. With this project, we aim to make Go the language of choice for developers building portable cloud applications.

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Paul Dix InfluxData Blog

Will Kubernetes collapse under the weight of its complexity?

Paul Dix, Founder and CTO of InfluxData, writes on the InfluxData blog: I attended and spoke at KubeCon EU. It was a massive event attended by around 4,700 people … However, I felt there was an underlying problem … everyone I spoke with was either an operator or an SRE. Where were all the application developers? Aren’t those the people that all this complex infrastructure is supposed to serve? Which raised questions for Paul, like… Is Kubernetes too complex? Will it end up collapsing under the weight of its own complexity? Will it fade away as OpenStack has seemed to since 2014? And Paul walked away from KubeCon EU with this perspective: Application developers would be better served by having a happy path to follow with the tools preselected … CNCF’s increasing complexity and broader reach might dilute the focus and brand of Kubernetes … I’m not sure what the answer might be to this or if I’m overblowing it, but from my perspective at the conference, it was like tool porn. Why bother with solving user problems when you can spend your entire career learning about and building new tools for infrastructure?

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Netflix Technology Blog Icon Netflix Technology Blog

Open sourcing Zuul 2

Netflix open sourced their cloud gateway: The Cloud Gateway team at Netflix runs and operates more than 80 clusters of Zuul 2, sending traffic to about 100 (and growing) backend service clusters which amounts to more than 1 million requests per second. Pretty impressive. Click through to get the details of how Zuul 2 works and how they use it inside Netflix. I love when companies who are operating at webscale (😏) share their practices and code with the rest of us.

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Red Hat Icon Red Hat

Red Hat to acquire CoreOS

This is a big deal. We’ve been tracking CoreOS since the beginning — we’re huge fans of Alex, Brandon and the team behind CoreOS. Red Hat has signed a definitive agreement to acquire CoreOS, Inc., an innovator and leader in Kubernetes and container-native solutions, for a purchase price of $250 million. Red Hat is a publicly traded company and while this announcement hasn’t really impacted shareholder value (yet), we, the open source community have been immeasurably impacted by the team behind CoreOS. Also, check out Alex Polvi’s announcement on the CoreOS blog which includes some details and backstory.

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