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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package destination | ||
|
|
||
| import ( | ||
| pb "github.com/linkerd/linkerd2-proxy-api/go/destination" | ||
| "github.com/sirupsen/logrus" | ||
| v1 "k8s.io/api/core/v1" | ||
| ) | ||
|
|
||
| type endpointProfileTranslator struct { | ||
| pod *v1.Pod | ||
| port uint32 | ||
| endpoint *pb.WeightedAddr | ||
| stream pb.Destination_GetProfileServer | ||
| log *logrus.Entry | ||
| } | ||
|
|
||
| // newEndpointProfileTranslator translates protocol updates to | ||
| // DestinationProfiles for endpoints. When a Server on the cluster is updated | ||
| // it is possible that it selects an endpoint that is being watched, if that | ||
| // is the case then an update will be sent to the client if the Server has | ||
| // changed the endpoint's supported protocol—mainly being opaque or not. | ||
| func newEndpointProfileTranslator(pod *v1.Pod, port uint32, endpoint *pb.WeightedAddr, stream pb.Destination_GetProfileServer, log *logrus.Entry) *endpointProfileTranslator { | ||
| return &endpointProfileTranslator{ | ||
| pod: pod, | ||
| port: port, | ||
| endpoint: endpoint, | ||
| stream: stream, | ||
| log: log, | ||
| } | ||
| } | ||
|
|
||
| func (ept *endpointProfileTranslator) UpdateProtocol(opaqueProtocol bool) { | ||
| // The protocol for an endpoint should only be updated if there is a pod, | ||
| // endpoint, and the endpoint has a protocol hint. If there is an endpoint | ||
| // but it does not have a protocol hint, that means we could not determine | ||
| // if it has a peer proxy so a opaque traffic would not be supported. | ||
| if ept.pod != nil && ept.endpoint != nil && ept.endpoint.ProtocolHint != nil { | ||
| if !opaqueProtocol { | ||
| ept.endpoint.ProtocolHint.OpaqueTransport = nil | ||
| } else if ept.endpoint.ProtocolHint.OpaqueTransport == nil { | ||
| port, err := getInboundPort(&ept.pod.Spec) | ||
| if err != nil { | ||
| ept.log.Error(err) | ||
| } else { | ||
| ept.endpoint.ProtocolHint.OpaqueTransport = &pb.ProtocolHint_OpaqueTransport{ | ||
| InboundPort: port, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| } | ||
| profile := ept.createDefaultProfile(opaqueProtocol) | ||
| ept.log.Debugf("sending protocol update: %+v", profile) | ||
| ept.stream.Send(profile) | ||
| } | ||
|
|
||
| func (ept *endpointProfileTranslator) createDefaultProfile(opaqueProtocol bool) *pb.DestinationProfile { | ||
| return &pb.DestinationProfile{ | ||
| RetryBudget: defaultRetryBudget(), | ||
| Endpoint: ept.endpoint, | ||
| OpaqueProtocol: opaqueProtocol, | ||
| } | ||
| } |
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