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Service Mesh, Tetrate

Multicluster Management with Kubernetes and Istio

Do you have multiple Kubernetes clusters and a service mesh? Do your virtual machines and services in a Kubernetes cluster need to interact? This article will take you through the process and considerations of building a hybrid cloud using Kubernetes and an Istio Service Mesh. Together, Kubernetes and Istio can be used to bring hybrid workloads into a mesh and achieve interoperability for multicluster. But another layer of infrastructure — a management plane — is helpful for managing multicluster or multimesh deployments.

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What is Istio operator?
Istio, Service Mesh

What is Istio operator?

For a long time, the primary tools for installing, upgrading, and managing Istio installations were Helm and Kubernetes CLI. Later, Istio 1.4 introduced a new method of installing Istio using the Istio CLI. 

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Discovery selectors featured image
Istio, Service Mesh

Discovery selectors in Istio 1.10

Discovery selectors were one of the new features introduced in Istio 1.10. Discovery selectors allow us to control which namespaces Istio control plane watches and sends configuration updates for. By default, the Istio control plane watches and processes updates for all Kubernetes resources in a cluster. Istio configures Envoy proxies in the mesh to reach every workload in the mesh and accept traffic on all ports associated with the workloads.

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istio-certification
Announcements, Istio, Open Source, Service Mesh, Tetrate

Tetrate launches Industry-first exam for Certified Istio Administrator

Enterprises are increasing their investments in digital transformation and in hiring the right talent to accelerate the journey. According to the 2020 open source jobs report from Linux Foundation, 52% of hiring managers are more likely to hire someone with a certification, up from 47% two years ago. Not so surprisingly, 93% of hiring managers report difficulty finding sufficient talent. Tetrate today announced the public availability of its exam for Certified Istio Administrator by Tetrate (CIAT) that evaluates skill, knowledge, and ability to perform Istio service mesh installation and configuration as well as configure traffic management, resilience and fault injection, and use security features of the Istio service mesh. This follows the February launch of the free training and certification course on Istio Fundamentals. Over 600 IT professionals have taken the training since then.  

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Digital Transformation
Service Mesh

Why do you need Istio when you already have Kubernetes?

If you’ve heard of service mesh and tried Istio, you may have the following questions:

  1. Why is Istio running on Kubernetes?
  2. What is the role of Kubernetes and a service mesh in the cloud-native application architecture, respectively?
  3. What aspects of Kubernetes does Istio extend? What problems does it solve?
  4. What is the relationship between Kubernetes, Envoy, and Istio?

This article will take you through the inner workings of Kubernetes and Istio. In addition, I will introduce the load balancing approach in Kubernetes, and explain why you need Istio when you have Kubernetes.

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Access
NGAC, Security, Service Mesh, Zero Trust

NGAC Vs RBAC Vs ABAC

Different companies or software providers have devised countless ways to control user access to functions or resources, such as Discretionary Access Control (DAC), Mandatory Access Control (MAC), Role-Based Access Control (RBAC), and Attribute-Based Access Control (ABAC). In essence, whatever the type of access control model, three basic elements can be abstracted: user, system/application, and policy.

In this article, we will introduce ABAC, RBAC, and a new access control model — Next Generation Access Control (NGAC) — and compare the similarities and differences between the three, as well as why you should consider NGAC.

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