syntax = "proto3";

package envoy.config.core.v4alpha;

import "google/protobuf/any.proto";

import "udpa/annotations/status.proto";
import "udpa/annotations/versioning.proto";
import "validate/validate.proto";

option java_package = "io.envoyproxy.envoy.config.core.v4alpha";
option java_outer_classname = "ExtensionProto";
option java_multiple_files = true;
option (udpa.annotations.file_status).package_version_status = NEXT_MAJOR_VERSION_CANDIDATE;

// [#protodoc-title: Extension configuration]

// Message type for extension configuration.
// [#next-major-version: revisit all existing typed_config that doesn't use this wrapper.].
message TypedExtensionConfig {
  option (udpa.annotations.versioning).previous_message_type =
      "envoy.config.core.v3.TypedExtensionConfig";

  // The name of an extension. This is not used to select the extension, instead
  // it serves the role of an opaque identifier.
  string name = 1 [(validate.rules).string = {min_len: 1}];

  // The typed config for the extension. The type URL will be used to identify
  // the extension. In the case that the type URL is *udpa.type.v1.TypedStruct*,
  // the inner type URL of *TypedStruct* will be utilized. See the
  // :ref:`extension configuration overview
  // <config_overview_extension_configuration>` for further details.
  google.protobuf.Any typed_config = 2 [(validate.rules).any = {required: true}];
}