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// Copyright 2016 Google Inc.
//
// 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 google.appengine.v1;
import "google/api/annotations.proto";
option go_package = "google.golang.org/genproto/googleapis/appengine/v1;appengine";
option java_multiple_files = true;
option java_outer_classname = "ServiceProto";
option java_package = "com.google.appengine.v1";
// A Service resource is a logical component of an application that can share
// state and communicate in a secure fashion with other services.
// For example, an application that handles customer requests might
// include separate services to handle tasks such as backend data
// analysis or API requests from mobile devices. Each service has a
// collection of versions that define a specific set of code used to
// implement the functionality of that service.
message Service {
// Full path to the Service resource in the API.
// Example: `apps/myapp/services/default`.
//
// @OutputOnly
string name = 1;
// Relative name of the service within the application.
// Example: `default`.
//
// @OutputOnly
string id = 2;
// Mapping that defines fractional HTTP traffic diversion to
// different versions within the service.
TrafficSplit split = 3;
}
// Traffic routing configuration for versions within a single service. Traffic
// splits define how traffic directed to the service is assigned to versions.
message TrafficSplit {
// Available sharding mechanisms.
enum ShardBy {
// Diversion method unspecified.
UNSPECIFIED = 0;
// Diversion based on a specially named cookie, "GOOGAPPUID." The cookie
// must be set by the application itself or no diversion will occur.
COOKIE = 1;
// Diversion based on applying the modulus operation to a fingerprint
// of the IP address.
IP = 2;
}
// Mechanism used to determine which version a request is sent to.
// The traffic selection algorithm will
// be stable for either type until allocations are changed.
ShardBy shard_by = 1;
// Mapping from version IDs within the service to fractional
// (0.000, 1] allocations of traffic for that version. Each version can
// be specified only once, but some versions in the service may not
// have any traffic allocation. Services that have traffic allocated
// cannot be deleted until either the service is deleted or
// their traffic allocation is removed. Allocations must sum to 1.
// Up to two decimal place precision is supported for IP-based splits and
// up to three decimal places is supported for cookie-based splits.
map<string, double> allocations = 2;
}
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