api: adds AllowModeOverride for extproc

Signed-off-by: Takeshi Yoneda <[email protected]>

Author: mathetake

api/v1alpha1/ext_proc_types.go

@@ -90,6 +90,12 @@ type ExtProc struct {
 	//
 	// +optional
 	Metadata *ExtProcMetadata `json:"metadata,omitempty"`
+
+	// AllowModeOverride allows the external processor to override the processing mode set via the
+	// `mode_override` field in the gRPC response message. This defaults to false.
+	//
+	// +optional
+	AllowModeOverride bool `json:"allowModeOverride,omitempty"`
 }
 
 // ExtProcMetadata defines options related to the sending and receiving of dynamic metadata to and from the

charts/gateway-helm/crds/generated/gateway.envoyproxy.io_envoyextensionpolicies.yaml

@@ -54,6 +54,11 @@ spec:
                   description: ExtProc defines the configuration for External Processing
                     filter.
                   properties:
+                    allowModeOverride:
+                      description: |-
+                        AllowModeOverride allows the external processor to override the processing mode set via the
+                        `mode_override` field in the gRPC response message. This defaults to false.
+                      type: boolean
                     backendRef:
                       description: |-
                         BackendRef references a Kubernetes object that represents the

internal/gatewayapi/envoyextensionpolicy.go

@@ -511,6 +511,7 @@ func (t *Translator) buildExtProc(
 		}
 	}
 
+	extProcIR.AllowModeOverride = extProc.AllowModeOverride
 	return extProcIR, err
 }
 

internal/ir/xds.go

@@ -2787,6 +2787,9 @@ type ExtProc struct {
 
 	// ReceivingMetadataNamespaces are metadata namespaces updatable by external processor
 	ReceivingMetadataNamespaces []string `json:"receivingMetadataNamespaces,omitempty" yaml:"receivingMetadataNamespaces,omitempty"`
+
+	// AllowModeOverride allows the external processor to modify the processing mode.
+	AllowModeOverride bool `json:"allowModeOverride,omitempty" yaml:"allowModeOverride,omitempty"`
 }
 
 // Wasm holds the information associated with the Wasm extensions.

internal/xds/translator/extproc.go

@@ -168,7 +168,7 @@ func extProcConfig(extProc ir.ExtProc) *extprocv3.ExternalProcessor {
 			}
 		}
 	}
-
+	config.AllowModeOverride = extProc.AllowModeOverride
 	return config
 }
 

site/content/en/latest/api/extension_types.md

@@ -1556,6 +1556,7 @@ _Appears in:_
 | `failOpen` | _boolean_ |  false  |  | FailOpen defines if requests or responses that cannot be processed due to connectivity to the<br />external processor are terminated or passed-through.<br />Default: false |
 | `processingMode` | _[ExtProcProcessingMode](#extprocprocessingmode)_ |  false  |  | ProcessingMode defines how request and response body is processed<br />Default: header and body are not sent to the external processor |
 | `metadata` | _[ExtProcMetadata](#extprocmetadata)_ |  false  |  | Refer to Kubernetes API documentation for fields of `metadata`. |
+| `allowModeOverride` | _boolean_ |  false  |  | AllowModeOverride allows the external processor to override the processing mode set via the<br />`mode_override` field in the gRPC response message. This defaults to false. |
 
 
 #### ExtProcBodyProcessingMode

site/content/zh/latest/api/extension_types.md

@@ -1556,6 +1556,7 @@ _Appears in:_
 | `failOpen` | _boolean_ |  false  |  | FailOpen defines if requests or responses that cannot be processed due to connectivity to the<br />external processor are terminated or passed-through.<br />Default: false |
 | `processingMode` | _[ExtProcProcessingMode](#extprocprocessingmode)_ |  false  |  | ProcessingMode defines how request and response body is processed<br />Default: header and body are not sent to the external processor |
 | `metadata` | _[ExtProcMetadata](#extprocmetadata)_ |  false  |  | Refer to Kubernetes API documentation for fields of `metadata`. |
+| `allowModeOverride` | _boolean_ |  false  |  | AllowModeOverride allows the external processor to override the processing mode set via the<br />`mode_override` field in the gRPC response message. This defaults to false. |
 
 
 #### ExtProcBodyProcessingMode