routes - Add Custom Header to HTTP request in Load Balancer

Question

I have an containerized application/service deployed in openshift container platform with istio service mesh. In istio virtual service yaml, i wanted to validate if the http request is having a header(for ex: version) and with value v1. i have added below config in virtual service yaml which validates header. But i am looking for available options to inject this header in HTTP request using loadbalancer/ingress/openshif route etc. As my istio-ingressgateway service is deployed with ClusterIp. i have used openshift route to send the external traffic to ingressgateway. please share the possible ways to add headers to http request

  http:
    - match:
        - headers: # Match header
            version: # header that we decided for dark release
              exact: v1 # exact match


 

Answer 1

It should be possible to use virtualService like

spec:  
  hosts:  
  - "example.com"  
  gateways:  
  - your-gateway  
  http:  
  -   
    name: remove-headers  
    headers:  
      request:  
        remove:  
        - yourHeader  

But I can't make it works. Please share if you can :)