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Merge pull request #2623 from priyawadhwa/integration
Add port forwarding integration test
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| /* | ||
| Copyright 2019 The Skaffold 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 integration | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "testing" | ||
|
|
||
| "github.com/GoogleContainerTools/skaffold/pkg/skaffold/constants" | ||
| "github.com/GoogleContainerTools/skaffold/proto" | ||
| "github.com/sirupsen/logrus" | ||
|
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| "github.com/GoogleContainerTools/skaffold/integration/skaffold" | ||
| "github.com/GoogleContainerTools/skaffold/pkg/skaffold/config" | ||
| "github.com/GoogleContainerTools/skaffold/pkg/skaffold/kubectl" | ||
| kubectx "github.com/GoogleContainerTools/skaffold/pkg/skaffold/kubernetes/context" | ||
| "github.com/GoogleContainerTools/skaffold/pkg/skaffold/kubernetes/portforward" | ||
| "github.com/GoogleContainerTools/skaffold/pkg/skaffold/runner/runcontext" | ||
| ) | ||
|
|
||
| func TestPortForward(t *testing.T) { | ||
| if testing.Short() { | ||
| t.Skip("skipping integration test") | ||
| } | ||
| if ShouldRunGCPOnlyTests() { | ||
| t.Skip("skipping test that is not gcp only") | ||
| } | ||
|
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| ns, _, deleteNs := SetupNamespace(t) | ||
| defer deleteNs() | ||
|
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| dir := "examples/microservices" | ||
| skaffold.Run().InDir(dir).InNs(ns.Name).RunOrFailOutput(t) | ||
|
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| cfg, err := kubectx.CurrentConfig() | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| kubectlCLI := kubectl.NewFromRunContext(&runcontext.RunContext{ | ||
| KubeContext: cfg.CurrentContext, | ||
| Opts: config.SkaffoldOptions{ | ||
| Namespace: ns.Name, | ||
| }, | ||
| }) | ||
|
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| logrus.SetLevel(logrus.TraceLevel) | ||
| portforward.WhiteBoxPortForwardCycle(t, kubectlCLI, ns.Name) | ||
| } | ||
|
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| // TestPortForwardDeletePod tests that port forwarding works | ||
| // as expected. Then, the test force deletes a pod, | ||
| // and tests that the pod eventually comes up at the same port again. | ||
| func TestPortForwardDeletePod(t *testing.T) { | ||
| if testing.Short() { | ||
| t.Skip("skipping integration test") | ||
| } | ||
| if ShouldRunGCPOnlyTests() { | ||
| t.Skip("skipping test that is not gcp only") | ||
| } | ||
|
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| ns, _, deleteNs := SetupNamespace(t) | ||
| defer deleteNs() | ||
|
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| rpcAddr := randomPort() | ||
| env := []string{fmt.Sprintf("TEST_NS=%s", ns.Name)} | ||
| cmd := skaffold.Dev("--cache-artifacts=true", "--port-forward", "--rpc-port", rpcAddr, "-v=info").InDir("examples/microservices").InNs(ns.Name).WithEnv(env) | ||
| stop := cmd.RunBackground(t) | ||
| defer stop() | ||
|
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| client, shutdown := setupRPCClient(t, rpcAddr) | ||
| defer shutdown() | ||
|
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| // create a grpc connection. Increase number of reties for helm. | ||
| stream, err := readEventAPIStream(client, t, 20) | ||
| if stream == nil { | ||
| t.Fatalf("error retrieving event log: %v\n", err) | ||
| } | ||
|
|
||
| // read entries from the log | ||
| entries := make(chan *proto.LogEntry) | ||
| go func() { | ||
| for { | ||
| entry, _ := stream.Recv() | ||
| if entry != nil { | ||
| entries <- entry | ||
| } | ||
| } | ||
| }() | ||
|
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| localPort := getLocalPortFromPortForwardEvent(t, entries, "leeroy-app", "service", ns.Name) | ||
| assertResponseFromPort(t, localPort, constants.LeeroyAppResponse) | ||
|
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| // now, delete all pods in this namespace. | ||
| logrus.Infof("Deleting all pods in namespace %s", ns.Name) | ||
| kubectlCLI := getKubectlCLI(t, ns.Name) | ||
| killPodsCmd := kubectlCLI.Command(context.Background(), | ||
| "delete", | ||
| "pods", "--all", | ||
| "-n", ns.Name, | ||
| ) | ||
|
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| if output, err := killPodsCmd.CombinedOutput(); err != nil { | ||
| t.Fatalf("error deleting all pods: %v \n %s", err, string(output)) | ||
| } | ||
| // port forwarding should come up again on the same port | ||
| assertResponseFromPort(t, localPort, constants.LeeroyAppResponse) | ||
| } | ||
|
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| func getKubectlCLI(t *testing.T, ns string) *kubectl.CLI { | ||
| cfg, err := kubectx.CurrentConfig() | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| return kubectl.NewFromRunContext(&runcontext.RunContext{ | ||
| KubeContext: cfg.CurrentContext, | ||
| Opts: config.SkaffoldOptions{ | ||
| Namespace: ns, | ||
| }, | ||
| }) | ||
| } |
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