// Copyright 2025 Envoy Project Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package envoy.config.core.v3;

import "google/protobuf/duration.proto";

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

option java_package = "io.envoyproxy.envoy.config.core.v3";
option java_outer_classname = "HttpUriProto";
option java_multiple_files = true;
option go_package = "github.com/envoyproxy/go-control-plane/envoy/config/core/v3;corev3";
option (udpa.annotations.file_status).package_version_status = ACTIVE;

// [#protodoc-title: HTTP service URI ]

// Envoy external URI descriptor
message HttpUri {
  option (udpa.annotations.versioning).previous_message_type = "envoy.api.v2.core.HttpUri";

  // The HTTP server URI. It should be a full FQDN with protocol, host and path.
  //
  // Example:
  //
  // .. code-block:: yaml
  //
  //    uri: https://www.googleapis.com/oauth2/v1/certs
  //
  string uri = 1 [(validate.rules).string = {min_len: 1}];

  // Specify how ``uri`` is to be fetched. Today, this requires an explicit
  // cluster, but in the future we may support dynamic cluster creation or
  // inline DNS resolution. See `issue
  // <https://github.com/envoyproxy/envoy/issues/1606>`_.
  oneof http_upstream_type {
    option (validate.required) = true;

    // A cluster is created in the Envoy "cluster_manager" config
    // section. This field specifies the cluster name.
    //
    // Example:
    //
    // .. code-block:: yaml
    //
    //    cluster: jwks_cluster
    //
    string cluster = 2 [(validate.rules).string = {min_len: 1}];
  }

  // Sets the maximum duration in milliseconds that a response can take to arrive upon request.
  google.protobuf.Duration timeout = 3 [(validate.rules).duration = {
    required: true
    lt {seconds: 4294967296}
    gte {}
  }];
}
