Routing ALB Traffic With A Header
Say you’re using the AWS LB Controller and want to route traffic to specific hosts based on a header.
You can do that with some annotations on your ingress. See these docs.
This is useful if you want to route traffic to different Kubernetes services. For example, you might have two versions of a service, each with different sets of feature toggles. You send everybody that doesn’t have a header set to the default service, and requests with the header set to your experiment service.
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