Story Tag: envoy

Stories Tag: envoy

Traffic Director — Managing communication between VM and Pods through envoy proxy | by Johanes Glenn | Sep, 2021 |...

admin 2 weeks ago in

Traffic Director is a managed control plane for application networking. Which allow us the user to setup communication between services in a similar manner of ‘Service Mesh’ but managed by GCP and also with several additional features beyond service mesh such as: One of my interests is how we can establish communication between VM and Containers within Kubernetes which some of us may not have…

Kubernetes xDS service for gRPC loadbalancing | by salmaan rashid | Sep, 2021 | Medium

admin 2 weeks ago in

Kubernetes service for gRPC xDS loadbalancing that allows even distribution of k8s gRPC service->service api calls. gRPC loadbalancinng can take many different schemes as described here Load Balancing in gRPC. The particular scheme described here is pretty unique and experimental: xDS server for gRPC. Note, normally kubernetes services are exposed as a single destination endpoint where clients connect to. Kubernetes will basically proxy a connection…

Troubleshooting Envoy with Kiali. Inspect and debug your Envoy… | by Leandro Beretta | Kiali | Jul, 2021 | Medium

admin 2 months ago in

Before we start diving into Envoy and its configuration, let’s try to answer the following questions: What is Envoy? Envoy is a high performance proxy design for service oriented applications. Why is it needed? Envoy provides built-in functionality to cope with challenges around micro services architectures, some of these are: The powerful aspect of a proxy that has the above functionality is that developers are…

Introduction to Istio. What exactly is Istio? | by Maciej | Jul, 2021 | Medium

admin 3 months ago in

Istio is an OSS for securely managing microservices and is a member of the CNCF like Kubernetes. As microservices progressed, Service Mesh became larger and more complex due to requests such as allocating only 20% access to A/B testing and canary releases . Istio has been developed to solve this problem of managing complex service meshes cannot keep up. Key features include authentication and monitoring…

Enabling GZIP compression with Istio | by Çağatay Gürtürk | Dec, 2020 | Medium

admin 9 months ago in

Although Istio documentation does not specify how to enable GZIP compression, it is in fact possible to enable it via built-in Compressor filter. Assuming that you want to enable GZIP compression on specific applications, the following EnvoyFilter manifest will do the trick: It is also possible to enable the compression globally at Istio gateway level. For that, you can replace “context” with “GATEWAY” and switch…

Istio の timeout, retry, circuit breaking, etc | by Yoshinori Teraoka | Sreake JP | Oct, 2020 | Medium

admin 11 months ago in

こんにちは、スリーシェイクの寺岡です。今回は Kubernetes の代表的な Service Mesh である Istio の timeout やら retry やらについての紹介です。 Istio は 1.7.3 で、その中で使われている Envoy は 1.15.1 です。Kubernetes は EKS で 1.17 です。 まずは、Istio と Envoy の関係についてですが、大雑把に言うと Istio は Envoy を Pod のサイドカーとして挿入し、それらの設定を管理するものです。私だけかもしれませんが、最初はそれらの Envoy 同士が特別な接続を持っているのではないかと勝手に想像していました。でも実際にはそれぞれの Envoy はただ Pod の外から中、中から外への通信の間に入って Proxy するだけで Envoy 同士の間には何の関係もありません。ですから timeout や retry についても一つの Pod に棲み着く Envoy だけを見れば良いことになります。 Envoy のドキュメントサイトに Life of a Request と言うページがありここで説明されています。Listener で受け付けたリクエストを filter で HTTP Header…

DAY22 — Istio 是什麼，原來是容器間通訊的妻管嚴嗎！？ — 實作篇 | by 髒桶子 | 喜歡解決問題的髒桶子 | Oct, 2020 | Medium

admin 12 months ago in

本文章同時發佈於： 大家好，今天要將 Istio 與 K8s 整合，整合之後會發現每個 K8s pod 都會從 1 個容器變為 2 個容器， 是因為容器都多了一個 envoy proxy 容器來管理流量，如圖，之後就可以再利用 envoy proxy 配合 Control Plane 來控制 Service Mesh。 官網已有相當清楚的教學，在我 Mac 上就是下載檔案並且加入執行的環境變數即可。 我們將以此Example-Code來說明， Istio 至少需要 K8s 1.16 以上才支持，而之前的文章是使用 K8s 1.15，所以必須先刪除 minikube 的 K8s 1.15， 創建 1.16 的 K8s，並開起 ingress 取得 minikube ip， 將特定api.backend.com與web.backend.com轉換成 minikube ip，以確保 ingress 正常運作，輸入以下指令開啟文件並儲存， 安裝 Istio 至 K8s， 啟用istio-injection，這會使在建立 pod 的時候，自動在 pod 中加入 envoy proxy 容器，…

Migrating From NGINX to Envoy Proxy | by Maciej | Sep, 2020 | Medium

admin 1 year ago in

In this article I would like to touch on the topic of migrating NGINX configuration to ENVOY, because my Kubernetes, which is currently in dev environment, and uses Nginx Ingress Controller, and I wanted to switch to Envoy if Envoy had advantages over Nginx and was easy to migrate. In katacoda there is simple scenario for this, This scenario is intended to support the migration…