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istio.io/content/en/docs/reference/config/analysis/ist0154/index.md

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EnvoyFilterUsesRemoveOperationIncorrectly analysis-message istio/wg-user-experience-maintainers n/a

This message occurs when an EnvoyFilter uses the REMOVE operation and ApplyTo is set to ROUTE_CONFIGURATION or HTTP_ROUTE. This will cause the REMOVE operation to be ignored. At the moment only the MERGE operation can be used for ROUTE_CONFIGURATION.

An example

Consider an EnvoyFilter with the patch operation of REMOVE where this EnvoyFilter will just be ignored:

{{< text yaml >}} apiVersion: networking.istio.io/v1alpha3 kind: EnvoyFilter metadata: name: test-remove-2 namespace: bookinfo spec: workloadSelector: labels: app: mysvc2 configPatches:

  • applyTo: ROUTE_CONFIGURATION match: context: GATEWAY listener: filterChain: sni: app.example.com filter: name: "envoy.filters.network.http_connection_manager.InternalAddressConfig" patch: operation: REMOVE {{< /text >}}