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Merge pull request #2495 from dprotaso/gep-1911-ws
[GEP-1911] websocket backend protocol conformance
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/* | ||
Copyright 2023 The Kubernetes 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. | ||
*/ | ||
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package tests | ||
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import ( | ||
"bytes" | ||
"fmt" | ||
"testing" | ||
"time" | ||
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"golang.org/x/net/websocket" | ||
"k8s.io/apimachinery/pkg/types" | ||
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"sigs.k8s.io/gateway-api/conformance/utils/http" | ||
"sigs.k8s.io/gateway-api/conformance/utils/kubernetes" | ||
"sigs.k8s.io/gateway-api/conformance/utils/suite" | ||
) | ||
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func init() { | ||
ConformanceTests = append(ConformanceTests, | ||
HTTPRouteBackendProtocolWebSocket, | ||
) | ||
} | ||
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var HTTPRouteBackendProtocolWebSocket = suite.ConformanceTest{ | ||
ShortName: "HTTPRouteBackendProtocolWebSocket", | ||
Description: "A HTTPRoute with a BackendRef that has an appProtocol kubernetes.io/ws should be functional", | ||
Features: []suite.SupportedFeature{ | ||
suite.SupportGateway, | ||
suite.SupportHTTPRoute, | ||
suite.SupportHTTPRouteBackendProtocolWebSocket, | ||
}, | ||
Manifests: []string{ | ||
"tests/httproute-backend-protocol-ws.yaml", | ||
}, | ||
Test: func(t *testing.T, suite *suite.ConformanceTestSuite) { | ||
ns := "gateway-conformance-infra" | ||
routeNN := types.NamespacedName{Name: "backend-protocol-ws", Namespace: ns} | ||
gwNN := types.NamespacedName{Name: "same-namespace", Namespace: ns} | ||
gwAddr := kubernetes.GatewayAndHTTPRoutesMustBeAccepted(t, suite.Client, suite.TimeoutConfig, suite.ControllerName, kubernetes.NewGatewayRef(gwNN), routeNN) | ||
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threshold := suite.TimeoutConfig.RequiredConsecutiveSuccesses | ||
maxTimeToConsistency := suite.TimeoutConfig.MaxTimeToConsistency | ||
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t.Run("websocket connection should reach backend", func(t *testing.T) { | ||
http.AwaitConvergence(t, threshold, maxTimeToConsistency, func(elapsed time.Duration) bool { | ||
origin := fmt.Sprintf("ws://gateway/%s", t.Name()) | ||
remote := fmt.Sprintf("ws://%s/ws", gwAddr) | ||
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ws, err := websocket.Dial(remote, "", origin) | ||
if err != nil { | ||
t.Log("failed to dial", err) | ||
return false | ||
} | ||
defer ws.Close() | ||
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// Send text frame | ||
var ( | ||
textMessage = "Websocket Support!" | ||
textReply string | ||
) | ||
if err := websocket.Message.Send(ws, textMessage); err != nil { | ||
t.Log("failed to send text frame", err) | ||
return false | ||
} | ||
if err := websocket.Message.Receive(ws, &textReply); err != nil { | ||
t.Log("failed to receive text frame", err) | ||
return false | ||
} | ||
if textMessage != textReply { | ||
t.Logf("unexpected reply - want: %s got: %s", textMessage, textReply) | ||
return false | ||
} | ||
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// Send byte frame | ||
var ( | ||
binaryMessage = []byte{1, 2, 3, 4, 5, 6, 7} | ||
binaryReply []byte | ||
) | ||
if err := websocket.Message.Send(ws, binaryMessage); err != nil { | ||
t.Log("failed to send binary frame", err) | ||
return false | ||
} | ||
if err := websocket.Message.Receive(ws, &binaryReply); err != nil { | ||
t.Log("failed to receive binary frame", err) | ||
} | ||
if !bytes.Equal(binaryMessage, binaryReply) { | ||
t.Logf("unexpected reply - want: %#v got: %#v", binaryMessage, binaryReply) | ||
return false | ||
} | ||
return true | ||
}) | ||
}) | ||
}, | ||
} |
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apiVersion: gateway.networking.k8s.io/v1 | ||
kind: HTTPRoute | ||
metadata: | ||
name: backend-protocol-ws | ||
namespace: gateway-conformance-infra | ||
spec: | ||
parentRefs: | ||
- name: same-namespace | ||
rules: | ||
- backendRefs: | ||
# This points to a Service with the following ServicePort | ||
# - name: third-port | ||
# appProtocol: kubernetes.io/ws | ||
# protocol: TCP | ||
# port: 8082 | ||
# targetPort: 3000 | ||
- name: infra-backend-v1 | ||
port: 8082 |
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