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In this chapter, you will be introduced to the concept of a service mesh and see how its capabilities can be used to handle challenges in a system landscape of microservices, in areas including security, policy enforcement, resilience, and traffic management. A service mesh can also be used to provide observability, the capability to visualize how traffic flows between microservices.A service mesh overlaps partly with the capabilities of Spring Cloud and Kubernetes that we learned about earlier in this book. But most of the functionality in a service mesh complements Spring Cloud and Kubernetes, as we will see in this chapter.The following topics will be covered in this chapter:
- An introduction to the service mesh concept and Istio, a popular open source implementation
- Deploying Istio in Kubernetes
- Creating, observing, and securing a service mesh
- Ensuring that a service mesh is resilient
- Performing zero-downtime updates...
