Routing rules for External HTTP(s) Load Balancers

[TejaBeta]

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Description

We tried to use header-based routing for one of our External HTTP(s) Load Balancers by header_matches, but received Advanced routing rules are not supported for scheme EXTERNAL, invalid error.

As Terraform documentation for compute_url_map states, advanced routing such as header-based routing is not possible for External HTTP(s) Load Balancers. Yet, on GCP documentation, it's possible with gcloud utility but not via Console. You can see it in below documentations:

https://cloud.google.com/load-balancing/docs/https/setting-up-query-and-header-routing#http-header-based-routing
https://cloud.google.com/load-balancing/docs/features#routing_and_traffic_management

This is similar issue(#6634) raised by Hmerac, as the original issue was closed we are raising a new one.

New or Affected Resource(s)

• compute_url_map

Potential Terraform Configuration

terraform {
   required_version = ">= 0.13.0, < 0.14" 

   required_providers {
     google      = "~> 3.0, >= 3.20"
     google-beta = "~> 3.0, >= 3.20"
   }
}

We also tried just using google provider from version >=3.38.* to ~3.60.*, still the issue persists.

References

#6634

[ghost]

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