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fix(e2e): add HTTP/2 keep-alive ping + dial timeout to kube client

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fix(e2e): harden kube exec against apiserver SPDY hangs #8627

fix(e2e): add HTTP/2 keep-alive ping + dial timeout to kube client
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Azure Pipelines / Agentbaker E2E failed Jun 3, 2026 in 35m 21s

Build #20260603.6 had test failures

Details

Tests

  • Failed: 4 (1.00%)
  • Passed: 397 (99.00%)
  • Other: 0 (0.00%)
  • Total: 401

Annotations

Check failure on line 961 in Build log

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@azure-pipelines azure-pipelines / Agentbaker E2E

Build log #L961

Script failed with exit code: 1

Check failure on line 1 in Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled/scriptless_nbc

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@azure-pipelines azure-pipelines / Agentbaker E2E

Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled/scriptless_nbc

Failed
Raw output
=== RUN   Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled/scriptless_nbc
=== PAUSE Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled/scriptless_nbc
=== CONT  Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled/scriptless_nbc
    test_helpers.go:390: [0.000s] TAGS {Name:Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled/scriptless_nbc ImageName:2204gen2containerd OS:ubuntu Arch:amd64 NetworkIsolated:false NonAnonymousACR:false GPU:false WASM:false BootstrapTokenFallback:false KubeletCustomConfig:false Scriptless:false VHDCaching:false MockAzureChinaCloud:false VMSeriesCoverageTest:false}
    test_helpers.go:221: [0.001s] → running scenario...
    test_helpers.go:258: [9.267s] → preparing AKS node...
    vmss.go:476: [9.267s] → creating VMSS vn66-2026-06-03-ubuntu2204gen2imagepullidentitybindingdis...
    vmss.go:384: [14.446s] VMSS portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-latest-kubernetes-version-d1ede_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/vn66-2026-06-03-ubuntu2204gen2imagepullidentitybindingdis/overview
    vmss.go:390: [14.447s] Managed cluster portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-latest-kubernetes-version-d1ede_westus3/providers/Microsoft.ContainerService/managedClusters/abe2e-latest-kubernetes-version-d1ede/overview
    vmss.go:509: [20.618s] VM will be automatically deleted after the test finishes, to preserve it for debugging purposes set KEEP_VMSS=true or pause the test with a breakpoint before the test finishes or failed
    vmss.go:513: [20.619s] SSH Instructions: (may take a few minutes for the VM to be ready for SSH)
        ========================
        az network bastion ssh --target-resource-id "/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-latest-kubernetes-version-d1ede_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/vn66-2026-06-03-ubuntu2204gen2imagepullidentitybindingdis/virtualMachines/0" --name "abe2e-latest-kubernetes-version-d1ede-bastion" --resource-group MC_abe2e-westus3_abe2e-latest-kubernetes-version-d1ede_westus3 --auth-type ssh-key --username azureuser --ssh-key /tmp/private-key-1355644710
        
    bastionssh.go:304: [272.734s] Attempt 1/5 establishing SSH over bastion to 10.224.0.14
    vmss.go:563: [274.155s] VM reached running state
    vmss.go:533: [274.155s] ✓ creating VMSS vn66-2026-06-03-ubuntu2204gen2imagepullidentitybindingdis done (264.9s)
    kube.go:154: [274.155s] → waiting for node vn66-2026-06-03-ubuntu2204gen2imagepullidentitybindingdis to be ready...
    kube.go:176: [274.221s] node vn66-2026-06-03-ubuntu2204gen2imagepullidentitybindingdis000000 is ready. Taints: [{"key":"node.kubernetes.io/network-unavailable","effect":"NoSchedule","timeAdded":"2026-06-03T00:52:57Z"}] Conditions: [{"type":"NetworkUnavailable","status":"True","lastHeartbeatTime":"2026-06-03T00:52:57Z","lastTransitionTime":"2026-06-03T00:52:57Z","reason":"NodeInitialization","message":"Waiting for cloud routes"},{"type":"MemoryPressure","status":"False","lastHeartbeatTime":"2026-06-03T00:53:13Z","lastTransitionTime":"2026-06-03T00:52:41Z","reason":"KubeletHasSufficientMemory","message":"kubelet has sufficient memory available"},{"type":"DiskPressure","status":"False","lastHeartbeatTime":"2026-06-03T00:53:13Z","lastTransitionTime":"2026-06-03T00:52:41Z","reason":"KubeletHasNoDiskPressure","message":"kubelet has no disk pressure"},{"type":"PIDPressure","status":"False","lastHeartbeatTime":"2026-06-03T00:53:13Z","lastTransitionTime":"2026-06-03T00:52:41Z","reason":"KubeletHasSufficientPID","message":"
... [The stack trace has been truncated as it exceeded the maximum allowed size. Please refer to the complete log available in the Test Run attachments for full details.]

Check failure on line 1 in Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled

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@azure-pipelines azure-pipelines / Agentbaker E2E

Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled

Failed
Raw output
=== RUN   Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled
=== PAUSE Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled
=== CONT  Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled
--- FAIL: Test_Ubuntu2204Gen2_ImagePullIdentityBinding_Disabled (0.00s)

Check failure on line 1 in Test_AzureLinuxV2

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@azure-pipelines azure-pipelines / Agentbaker E2E

Test_AzureLinuxV2

Failed
Raw output
=== RUN   Test_AzureLinuxV2
=== PAUSE Test_AzureLinuxV2
=== CONT  Test_AzureLinuxV2
--- FAIL: Test_AzureLinuxV2 (0.13s)