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As part of our tradition of promoting service mesh adoption, Tetrate is proud to announce our contribution of the first official CNCF Istio course through the Linux Foundation, called Introduction to Istio (LFS144x).
WasmPlugin API has recently been added to the Istio project as a new and improved mechanism for extensibility. Here at Tetrate, we’ve recently conducted a successful workshop called Istio Wasm workshop. Click here to watch the recording of the workshop and join the conversation on Slack.
We talked about WebAssembly and its importance in Istio and Envoy projects, and went through multiple practical labs using Proxy-Wasm Go SDK and func-e.
Also published on: CNCF
Envoy Proxy, an open-source edge and service proxy, is a vital part of today’s modern, cloud-native application and is used in production by large companies like Booking.com, Pinterest, and Airbnb(Source). Tetrate, a top contributor to Envoy, has developed Envoy Fundamentals, free training with a completion certificate, to help enterprises adopt the technology faster. It will enable DevOps users, SREs, developers, and other community members to learn Envoy easily with concept text, practical labs, and quizzes. Tetrate is also the creator of the popular Istio Fundamentals training course and the open-source project Func-e, which makes it easier to adopt Envoy.
Envoy is the engine that keeps Istio running. If you’re familiar with Istio, you know that the collection of all Envoys in the Istio service mesh is also referred to as the data plane.
In this blog post, we’ll look at the fundamentals of Envoy: the building blocks of the proxy and, at a high level, how the proxy works. Understanding this will help you better understand how Istio works.
On July 13th Envoy proxy announced the 1.19 release. Envoy is an edge and service proxy that is a fundamental component of the Istio platform. The 1.19 release includes several new features, minor behavior changes, and bug fixes.
If you’ve ever wondered what WebAssembly (Wasm) is and how it fits into the service mesh ecosystem, this is the article you want to read. You’ll learn about Envoy extensibility and Wasm extensions.
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.
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.
Istio 1.10 引人注目的新功能之一是发现选择器（Discovery Selector）， 让你轻易掌控 Istio 控制平面对哪些命名空间进行监视以及发送配置更新。 默认情况下，Istio 控制平面会对集群中所有 Kubernetes 资源的更新进行监视和处理。 网格中的所有 Envoy 代理都采用特别的配置方式，让它们访问网格中的每个工作负载，并接受与这些工作负载相关的所有端口的流量。
