#IstioCon Operational Excellence ● Detecting backwards incompatible changes ● Measuring developer efficiency ○ Test flakes ○ Feature and code coverage ● Feature promotion efficacy ● Improving overall

availability, and a more uniform user experience to more users. Higher performance and improved efficiency empower new user experiences and connects new industries. -Qualcomm 3 ©2021 Aspen Mesh. All

size in app sidecar #IstioCon o Knative needs to access POD by IP directly for performance and efficiency. o When mesh enabled, all traffic through Kube service managed by istio mesh. o Knative community

Adoption challenges Adopting Istio ● Moving HTTP/2 load-balancing from client-side to Envoy ● Label selector updates for app and version labels ● Istio default retry policy ● Istio proxy performance Strategy to migrate services Adopting Istio 1. Abstract 2. Explain 3. Support 4. Track 48 Label selector updates for app and version labels Adopting Istio ● Is there anyone in the audience who 16) 49 Label selector updates for app and version labels Adopting Istio First, headless services, now labels... Who said that migrating to Istio is only about adding sidecars?? 50 Label selector

reviews-v2 2) Deploy bookinfo gateway 3) Deploy reviews-v2 service without istio sidecar （ kubectl label namespace default istio-injection=disabled/enabled ） Initializing services 1) Deploy bookinfo services reviews-v2 2) Deploy bookinfo gateway 3) Deploy reviews-v2 service without istio sidecar （ kubectl label namespace default istio-injection=disabled/enabled ） http http http http http http http Result:

- image: rating-v2 ... Kubernetes Service Version Version Service Deployment Deployment Label selector Istio Istio几种重要资源对象 • 入口资源对象 • VirtualService • DestinationRule • 重要属性 • HTTPRoute

containers: - image: rating- v2 Kubernet es Service Version Version Service Deployment Deployment Label selector Istio25 Istio几种重要资源对象 • 入口资源对象 – VirtualService – DestinationRule • 重要属性 • HTTPRoute

aeraki_meata_locality 自定义属性 2. 在 provider 的 deployment 中通过环境变量设置其所属地域 3. 在 consumer 的 deployment 中通过 label 声明其所处的 region 和 zone 4. 通过 dr 规则启用 locality load balancing https://docs.qq.com/doc/DVnlqUVB1ek1laFBQ

current behavior runs counter to the Gateway documentation, which states the following:3 The scope of label search is restricted to the configuration namespace in which the the resource is present. In other