Introduction
Istio helps manage how different parts of an application talk to each other inside a Kubernetes cluster. It solves problems like controlling traffic, securing communication, and monitoring services without changing the app code.
When you want to control traffic flow between microservices without changing their code
When you need to add security like encryption and authentication between services
When you want to monitor and trace requests across multiple services easily
When you want to test new versions of services safely with traffic splitting
When you want to enforce policies like rate limiting or access control on service calls