From the course: Kubernetes: Service Mesh with Istio

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Destination rules

Destination rules - Kubernetes Tutorial

From the course: Kubernetes: Service Mesh with Istio

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Destination rules

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- [Instructor] In the last video, we talked about how virtual services act like a GPS, guiding traffic to the right destination. But once traffic gets there, how do we decide what happens next? That's where destination rules come in. Think of destination rules as the rule of the road. Once traffic reaches its destination, these rules manage how it flows. They let us fine tune and control how traffic inside the mesh is handled. Let's do a quick recap. Earlier, we saw how with a virtual service, we can route 75% of traffic to version 1 of a service and 25% to version 2. But how does it still know what version 1 or version 2 means? That's the magic of destination rules. They group instances of a service into subsets using labels like version: v1 or version: v2. This label style is to exactly where to send the traffic. Here's how it all comes together. In your Kubernetes deployment files, you attach labels like version: v1 to specific pods. Destination rules use those labels to define…

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