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Virtual Services in Istio provide a way to control/split traffic towards multiple destinations. Traffic split across different versions of the same service is a typical solution to achieve canary or A/B rollouts. Additionally virtual Services allow routing to different other services. This can come handy in use cases like network abstraction that aims at decoupling applications from the platform. In network abstraction the clients need not be aware of where the service is running, or how many different parallel generations of a service exist simultaneously. It is possible to channelize, migrate or split traffic across these parallel service stacks without changing anything on the client side. Client could be, on a mobile, desktop, outside or within the service mesh. Additionally the client will never have to change the endpoint. This talk shows how Intuit built a network abstraction layer for both mesh and non mesh traffic using Istio’s virtual services.
Nandan is a Senior Software Engineer at Intuit. Currently working in Service Mesh team. He loves working on distributed systems and exploring new technologies.
Venkata works as staff engineer in the Service Mesh team at Intuit. Had a previous experience designing 5G core network products over service mesh. He loves to explore solutions that simplify things for the users. Spends his free time with family and kids.