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version.go
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version.go
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/*
*
* Copyright 2020 gRPC 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.
*
*/
// Package version defines constants to distinguish between supported xDS API
// versions.
package version
// TransportAPI refers to the API version for xDS transport protocol. This
// describes the xDS gRPC endpoint and version of DiscoveryRequest/Response used
// on the wire.
type TransportAPI int
const (
// TransportV2 refers to the v2 xDS transport protocol.
TransportV2 TransportAPI = iota
// TransportV3 refers to the v3 xDS transport protocol.
TransportV3
)
// Resource URLs. We need to be able to accept either version of the resource
// regardless of the version of the transport protocol in use.
const (
googleapiPrefix = "type.googleapis.com/"
V2ListenerType = "envoy.api.v2.Listener"
V2RouteConfigType = "envoy.api.v2.RouteConfiguration"
V2ClusterType = "envoy.api.v2.Cluster"
V2EndpointsType = "envoy.api.v2.ClusterLoadAssignment"
V2ResourceWrapperURL = googleapiPrefix + "envoy.api.v2.Resource"
V2ListenerURL = googleapiPrefix + V2ListenerType
V2RouteConfigURL = googleapiPrefix + V2RouteConfigType
V2ClusterURL = googleapiPrefix + V2ClusterType
V2EndpointsURL = googleapiPrefix + V2EndpointsType
V2HTTPConnManagerURL = googleapiPrefix + "envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager"
V3ListenerType = "envoy.config.listener.v3.Listener"
V3RouteConfigType = "envoy.config.route.v3.RouteConfiguration"
V3ClusterType = "envoy.config.cluster.v3.Cluster"
V3EndpointsType = "envoy.config.endpoint.v3.ClusterLoadAssignment"
V3ResourceWrapperURL = googleapiPrefix + "envoy.service.discovery.v3.Resource"
V3ListenerURL = googleapiPrefix + V3ListenerType
V3RouteConfigURL = googleapiPrefix + V3RouteConfigType
V3ClusterURL = googleapiPrefix + V3ClusterType
V3EndpointsURL = googleapiPrefix + V3EndpointsType
V3HTTPConnManagerURL = googleapiPrefix + "envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager"
V3UpstreamTLSContextURL = googleapiPrefix + "envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext"
V3DownstreamTLSContextURL = googleapiPrefix + "envoy.extensions.transport_sockets.tls.v3.DownstreamTlsContext"
)