add retry_policy to ext_proc filter (#32241)

---------

Signed-off-by: Xin Zhuang <stevenzzz@google.com>

Mirrored from https://github.com/envoyproxy/envoy @ 9536ce2d3fdb234f8006ba4092e59577c15ea179

envoy/config/core/v3/base.proto

@@ -432,9 +432,28 @@ message DataSource {
 }
 
 // The message specifies the retry policy of remote data source when fetching fails.
+// [#next-free-field: 7]
 message RetryPolicy {
   option (udpa.annotations.versioning).previous_message_type = "envoy.api.v2.core.RetryPolicy";
 
+  // See :ref:`RetryPriority <envoy_v3_api_field_config.route.v3.RetryPolicy.retry_priority>`.
+  message RetryPriority {
+    string name = 1 [(validate.rules).string = {min_len: 1}];
+
+    oneof config_type {
+      google.protobuf.Any typed_config = 2;
+    }
+  }
+
+  // See :ref:`RetryHostPredicate <envoy_v3_api_field_config.route.v3.RetryPolicy.retry_host_predicate>`.
+  message RetryHostPredicate {
+    string name = 1 [(validate.rules).string = {min_len: 1}];
+
+    oneof config_type {
+      google.protobuf.Any typed_config = 2;
+    }
+  }
+
   // Specifies parameters that control :ref:`retry backoff strategy <envoy_v3_api_msg_config.core.v3.BackoffStrategy>`.
   // This parameter is optional, in which case the default base interval is 1000 milliseconds. The
   // default maximum interval is 10 times the base interval.
@@ -444,6 +463,18 @@ message RetryPolicy {
   // defaults to 1.
   google.protobuf.UInt32Value num_retries = 2
       [(udpa.annotations.field_migrate).rename = "max_retries"];
+
+  // For details, see :ref:`retry_on <envoy_v3_api_field_config.route.v3.RetryPolicy.retry_on>`.
+  string retry_on = 3;
+
+  // For details, see :ref:`retry_priority <envoy_v3_api_field_config.route.v3.RetryPolicy.retry_priority>`.
+  RetryPriority retry_priority = 4;
+
+  // For details, see :ref:`RetryHostPredicate <envoy_v3_api_field_config.route.v3.RetryPolicy.retry_host_predicate>`.
+  repeated RetryHostPredicate retry_host_predicate = 5;
+
+  // For details, see :ref:`host_selection_retry_max_attempts <envoy_v3_api_field_config.route.v3.RetryPolicy.host_selection_retry_max_attempts>`.
+  int64 host_selection_retry_max_attempts = 6;
 }
 
 // The message specifies how to fetch data from remote and how to verify it.

envoy/config/core/v3/grpc_service.proto

@@ -25,7 +25,7 @@ option (udpa.annotations.file_status).package_version_status = ACTIVE;
 
 // gRPC service configuration. This is used by :ref:`ApiConfigSource
 // <envoy_v3_api_msg_config.core.v3.ApiConfigSource>` and filter configurations.
-// [#next-free-field: 6]
+// [#next-free-field: 7]
 message GrpcService {
   option (udpa.annotations.versioning).previous_message_type = "envoy.api.v2.core.GrpcService";
 
@@ -300,4 +300,8 @@ message GrpcService {
   // documentation on :ref:`custom request headers
   // <config_http_conn_man_headers_custom_request_headers>`.
   repeated HeaderValue initial_metadata = 5;
+
+  // Optional default retry policy for streams toward the service.
+  // If an async stream doesn't have retry policy configured in its stream options, this retry policy is used.
+  RetryPolicy retry_policy = 6;
 }