EnvoyFilterUsesRemoveOperationIncorrectly

Message NameEnvoyFilterUsesRemoveOperationIncorrectly
Message CodeIST0154
DescriptionThe REMOVE operation will be ignored when applyTo is set to ROUTE_CONFIGURATION, or HTTP_ROUTE.
LevelError

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:

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