Istio’s Complexity Leads Some Users to Linkerd

Twain Taylor Twain is a guest blogger for Twistlock and a Fixate IO Contributor. He began his career at Google, where, among other things, he was involved in technical support for the AdWords team. His work involved reviewing stack traces and resolving issues affecting both customers and the Support team, and handling escalations. Today, as a technology journalist, he helps IT magazines, and startups change the way teams build and ship applications. Service meshes have been getting quite a bit of attention, and with good reason. By providing reliability, security, and observability at the platform layer, service meshes can play a mission-critical role in Kubernetes applications. But tales of adoption are mixed: some practitioners report shying away from adopting a service meshes due to their apparent complexity, while others report getting them up and running with apparent ease. So which is it? Are service meshes too complex to be worth the effort, or ready for adoption today? In this article I wanted to focus on

Tech Bytes: VMware’s vRealize True Visibility Suite Illuminates Dark Corners Of Your IT Stack (Sponsored)

On today's sponsored Tech Bytes podcast we discuss VMware's vRealize True Visibility Suite (TVS), an add-on that helps you understand transactions from the physical layer all the way through to the application layer. Our guest is Apolak Borthakur, VP/GM at VMware.

The post Tech Bytes: VMware’s vRealize True Visibility Suite Illuminates Dark Corners Of Your IT Stack (Sponsored) appeared first on Packet Pushers.

Day Two Cloud 081: Abstractions Should Save Typing, Not Thinking

Today's Day Two Cloud episode is part one of a two-part show on abstractions. Hosts Ned Bellavance and Ethan Banks riff on the idea that "Abstractions are there to save you typing, not to save you thinking." The upshot? Abstractions don't eliminate issues, they just move them someplace else. And that has repercussions for design, development, infrastructure, and operations.

The post Day Two Cloud 081: Abstractions Should Save Typing, Not Thinking appeared first on Packet Pushers.

Calico Enterprise: An Overview

As we enter a new year, it’s an appropriate time to reflect on our achievements at Tigera and how much Calico Enterprise has evolved over the past year as the industry’s leading Security and Observability solution for Kubernetes Networking and Microservices. Our experience working with enterprise-class early adopters has helped us to identify the most critical requirements for them to operationalize their Kubernetes deployments and successfully make the challenging transition from pilot to production. These learnings have helped us to shape today’s Calico Enterprise, which is visually represented in this solutions architecture diagram. Let’s dig into this feature-rich layer cake of functionality, from bottom to top!

Calico Enterprise Solutions Architecture

Calico Enterprise is “Kube-native”

But first, there are some important things to keep in mind as we explore. Calico Enterprise is a Kubernetes-native solution – Kube-native – in which everything we do is an extension of Kubernetes primitives. We leverage the full power of Kubernetes by integrating with the Kubernetes API server and creating our own aggregated API server. We use an operator model to access and control custom resources to perform specific functions, like RBAC for example, natively in Kubernetes. Being Kubernetes-native means that as Kubernetes evolves, Calico Enterprise Continue reading

The Hedge Podcast 67: Daniel Beveridge and the Structure of Innovation

Innovation and disruption are part the air we breath in the information technology world. But what is innovation, and how do we become innovators? When you see someone who has invented a lot of things, either shown in patents or standards or software, you might wonder how you can become an innovator, too. In this episode of the Hedge, Tom Ammon, Eyvonne Sharp, and Russ White talk to Daniel Beveridge about the structure of innovation—how to position yourself in a place where you can innovate, and how to launch innovation.

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Indigenous Communities Must Have Internet Access on Their Own Terms

A shorter version of this article was first published in the Toronto Star.

With the recent launch of the Universal Broadband Fund, or UBF, the federal government has committed to addressing the connectivity gap that is far too real for many people living in Canada. Over the past eight months, COVID-19 has shown us how important the Internet is during a crisis. Broadband access has become an essential service as critical as access to water or electricity. Minister Maryam Monsef was correct when she said: “High-speed Internet is more than just a convenience.”

Certainly, an investment of CAD$1.75 billion to help lower the hurdles that have left many Indigenous, rural, and remote communities in Canada on the wrong side of the digital divide is both needed and welcome. But officials need to take care not to disenfranchise the very communities they intend to help in the process. For the most challenging communities to connect to the Internet, success can only happen with community-led initiatives. It is critical that the communities most in need are full partners in the process, driving connectivity solutions that work for them, and have access to the necessary resources to make that happen.

This Continue reading

Lessons that insurrection selfies hold for legitimate enterprises

The pro-Trump rioters who invaded the Capitol on January 6 came with smartphones to record and celebrate what they thought was a righteous effort to prevent president-elect Joe Biden from taking office two weeks later.Now those electronic devices, along with the GPS data they generated, are being used to track the location of rioters within the building as federal law enforcement officials continue to make arrests and build criminal cases.Among the acts being investigated: breaking through police barriers, smashing windows, and assaulting police officers and media members. Five people died including a Capitol Hill police officer who was bludgeoned with a fire extinguisher.To read this article in full, please click here

Lessons that insurrection selfies hold for legitimate enterprises

The pro-Trump rioters who invaded the Capitol on January 6 came with smartphones to record and celebrate what they thought was a righteous effort to prevent president-elect Joe Biden from taking office two weeks later.Now those electronic devices, along with the GPS data they generated, are being used to track the location of rioters within the building as federal law enforcement officials continue to make arrests and build criminal cases.Among the acts being investigated: breaking through police barriers, smashing windows, and assaulting police officers and media members. Five people died including a Capitol Hill police officer who was bludgeoned with a fire extinguisher.To read this article in full, please click here

Offloading Authentication and Authorization from Application Code to a Service Mesh

Tetrate sponsored this post. Zack Butcher Zack is a Tetrate engineer. He is an Istio contributor and member of the Istio Steering Committee and co-author of 'Istio: Up and Running (O’Reilly: 2019).' In an upcoming Ramaswamy Chandramouli, we’ll be presenting recommendations around safely and securely offloading authentication and authorization from application code to a service mesh. We’ll be discussing the advantages and disadvantages of that approach. This article presents an overview of the paper that will be presented later this month, at

Study: Cloud transformation necessary for digital transformation

Cloud migration is a necessary step for digital transformation, which is proceeding faster than planned at many enterprises because of the COVID-19 pandemic, according to research from Cloud Industry Forum (CIF), a cloud computing organization based in the United Kingdom.The cloud is an important steppingstone for getting off legacy on-prem technologies and outfitting today's more flexible, remote workforce. Supporting a remote workforce requires a digital transformation, and to do that, companies need the cloud – public, private, or hybrid. CIF found that in many sectors, remaining productive during lockdown depended on their cloud-readiness.To read this article in full, please click here

XML-to-JSON Information Loss, Cisco Nexus OS Edition

Last week I wrote about the interesting challenges you might encounter when using data generated by a Junos device in an Ansible playbook. Unfortunately it’s not just Junos – every system built around XML-based data structures might experience the same issues, including Cisco Nexus OS.

To be fair to Ansible developers: it’s not an Ansible problem, the problem is caused by fundamental incompatibility between XML and JSON encodings, and the naive use of standard XML Python libraries. It’s just that engineers who might stumble upon that problem commonly use Ansible.
Read more …

XML-to-JSON Information Loss, Cisco Nexus OS Edition

Last week I wrote about the interesting challenges you might encounter when using data generated by a Junos device in an Ansible playbook. Unfortunately it’s not just Junos – every system built around XML-based data structures might experience the same issues, including Cisco Nexus OS.

To be fair to Ansible developers: it’s not an Ansible problem, the problem is caused by fundamental incompatibility between XML and JSON encodings, and the naive use of standard XML Python libraries. It’s just that engineers who might stumble upon that problem commonly use Ansible.
Read more …
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