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fix(vhdbuilder): increase Flatcar OS disk size #7505

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Azure Pipelines / [TEST All VHDs] AKS Linux VHD Build - Msft Tenant succeeded Jan 19, 2026 in 15m 17s

Build #20260119.2_increase-flatcar-disk-size_149845470 had test failures

0 errors / 0 warnings

Details

Tests

  • Failed: 3 (2.78%, 3 new, 0 recurring)
  • Passed: 105 (97.22%)
  • Other: 0 (0.00%)
  • Total: 108

Annotations

Check failure on line 1 in Test_Flatcar_AzureCNI_ChronyRestarts_Scriptless

See this annotation in the file changed.

@azure-pipelines azure-pipelines / [TEST All VHDs] AKS Linux VHD Build - Msft Tenant

Test_Flatcar_AzureCNI_ChronyRestarts_Scriptless 

Failed
Raw output 
=== RUN   Test_Flatcar_AzureCNI_ChronyRestarts_Scriptless
=== PAUSE Test_Flatcar_AzureCNI_ChronyRestarts_Scriptless
=== CONT  Test_Flatcar_AzureCNI_ChronyRestarts_Scriptless
    test_helpers.go:335: TAGS {Name:Test_Flatcar_AzureCNI_ChronyRestarts_Scriptless ImageName:flatcargen2 OS:flatcar Arch:amd64 Airgap:false NonAnonymousACR:false GPU:false WASM:false BootstrapTokenFallback:false KubeletCustomConfig:false Scriptless:true VHDCaching:false MockAzureChinaCloud:false}
    vmss.go:167: creating VMSS "no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless" with AKSNodeConfigMutator in resource group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3
    vmss.go:179: VMSS portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless/overview
    vmss.go:185: Managed cluster portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3/providers/Microsoft.ContainerService/managedClusters/abe2e-azure-network-v3-f69fa/overview
    vmss.go:287: 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:291: 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-azure-network-v3-f69fa_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless/virtualMachines/0" --name "abe2e-azure-network-v3-f69fa-bastion" --resource-group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3 --auth-type ssh-key --username azureuser --ssh-key /tmp/private-key-1862330780
        
    vmss.go:341: VM reached running state
    vmss.go:232: created VMSS no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless in resource group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3
    kube.go:148: waiting for node no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless to be ready in k8s API
    kube.go:184: node no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless000000 is ready. Taints: [{"key":"node.cloudprovider.kubernetes.io/uninitialized","value":"true","effect":"NoSchedule"}] Conditions: [{"type":"MemoryPressure","status":"False","lastHeartbeatTime":"2026-01-19T14:42:48Z","lastTransitionTime":"2026-01-19T14:42:48Z","reason":"KubeletHasSufficientMemory","message":"kubelet has sufficient memory available"},{"type":"DiskPressure","status":"False","lastHeartbeatTime":"2026-01-19T14:42:48Z","lastTransitionTime":"2026-01-19T14:42:48Z","reason":"KubeletHasNoDiskPressure","message":"kubelet has no disk pressure"},{"type":"PIDPressure","status":"False","lastHeartbeatTime":"2026-01-19T14:42:48Z","lastTransitionTime":"2026-01-19T14:42:48Z","reason":"KubeletHasSufficientPID","message":"kubelet has sufficient PID available"},{"type":"Ready","status":"True","lastHeartbeatTime":"2026-01-19T14:42:48Z","lastTransitionTime":"2026-01-19T14:42:48Z","reason":"KubeletReady","message":"kubelet is posting ready status"}]
    kube.go:150: waited for node no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless to be ready in k8s API for 98.937639ms
    strings.go:21: Node no0a-2026-01-19-flatcarazurecnichronyrestartsscriptless took 2m35.430262325s to be created and 98.95924ms to be ready
    test_helpers.go:227: Choosing the private ACR "e2eprivateacrwestus3" for the vm validation
    test_helpers.go:748: SSH connectivity to 10.224.0.224 verified successfully
    validators.go:1568: truncated pod name "no0a-2026-

Check failure on line 1 in Test_AzureLinuxV3_AzureCNI

See this annotation in the file changed.

@azure-pipelines azure-pipelines / [TEST All VHDs] AKS Linux VHD Build - Msft Tenant

Test_AzureLinuxV3_AzureCNI 

Failed
Raw output 
=== RUN   Test_AzureLinuxV3_AzureCNI
=== PAUSE Test_AzureLinuxV3_AzureCNI
=== CONT  Test_AzureLinuxV3_AzureCNI
    test_helpers.go:335: TAGS {Name:Test_AzureLinuxV3_AzureCNI ImageName:AzureLinuxV3gen2 OS:azurelinux Arch:amd64 Airgap:false NonAnonymousACR:false GPU:false WASM:false BootstrapTokenFallback:false KubeletCustomConfig:false Scriptless:false VHDCaching:false MockAzureChinaCloud:false}
    vmss.go:170: creating VMSS "tal7-2026-01-19-azurelinuxv3azurecni" with BootstrapConfigMutator/NBC in resource group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3
    vmss.go:179: VMSS portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/tal7-2026-01-19-azurelinuxv3azurecni/overview
    vmss.go:185: Managed cluster portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3/providers/Microsoft.ContainerService/managedClusters/abe2e-azure-network-v3-f69fa/overview
    vmss.go:287: 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:291: 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-azure-network-v3-f69fa_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/tal7-2026-01-19-azurelinuxv3azurecni/virtualMachines/0" --name "abe2e-azure-network-v3-f69fa-bastion" --resource-group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3 --auth-type ssh-key --username azureuser --ssh-key /tmp/private-key-1862330780
        
    vmss.go:341: VM reached running state
    vmss.go:232: created VMSS tal7-2026-01-19-azurelinuxv3azurecni in resource group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3
    kube.go:148: waiting for node tal7-2026-01-19-azurelinuxv3azurecni to be ready in k8s API
    kube.go:184: node tal7-2026-01-19-azurelinuxv3azurecni000000 is ready. Taints: null Conditions: [{"type":"MemoryPressure","status":"False","lastHeartbeatTime":"2026-01-19T14:43:05Z","lastTransitionTime":"2026-01-19T14:43:04Z","reason":"KubeletHasSufficientMemory","message":"kubelet has sufficient memory available"},{"type":"DiskPressure","status":"False","lastHeartbeatTime":"2026-01-19T14:43:05Z","lastTransitionTime":"2026-01-19T14:43:04Z","reason":"KubeletHasNoDiskPressure","message":"kubelet has no disk pressure"},{"type":"PIDPressure","status":"False","lastHeartbeatTime":"2026-01-19T14:43:05Z","lastTransitionTime":"2026-01-19T14:43:04Z","reason":"KubeletHasSufficientPID","message":"kubelet has sufficient PID available"},{"type":"Ready","status":"True","lastHeartbeatTime":"2026-01-19T14:43:05Z","lastTransitionTime":"2026-01-19T14:43:05Z","reason":"KubeletReady","message":"kubelet is posting ready status"}]
    kube.go:150: waited for node tal7-2026-01-19-azurelinuxv3azurecni to be ready in k8s API for 49.909526ms
    strings.go:21: Node tal7-2026-01-19-azurelinuxv3azurecni took 2m53.914495374s to be created and 49.928826ms to be ready
    test_helpers.go:227: Choosing the private ACR "e2eprivateacrwestus3" for the vm validation
    test_helpers.go:748: SSH connectivity to 10.224.0.162 verified successfully
    validation.go:119: creating pod "tal7-2026-01-19-azurelinuxv3azurecni000000-test-pod"
    validation.go:26: retrying pod "tal7-2026-01-19-azurelinuxv3azurecni000000-test-pod" validation (1/3)
    validation.go:119: creating pod "tal7-2026-01-19-azurelinuxv3azurecni000000-test-pod"
    validation.go:26: retrying pod "tal7-2026-01-19-azurelinuxv3azurecni000000-

Check failure on line 1 in Test_Flatcar_AzureCNI

See this annotation in the file changed.

@azure-pipelines azure-pipelines / [TEST All VHDs] AKS Linux VHD Build - Msft Tenant

Test_Flatcar_AzureCNI 

Failed
Raw output 
=== RUN   Test_Flatcar_AzureCNI
=== PAUSE Test_Flatcar_AzureCNI
=== CONT  Test_Flatcar_AzureCNI
    test_helpers.go:335: TAGS {Name:Test_Flatcar_AzureCNI ImageName:flatcargen2 OS:flatcar Arch:amd64 Airgap:false NonAnonymousACR:false GPU:false WASM:false BootstrapTokenFallback:false KubeletCustomConfig:false Scriptless:false VHDCaching:false MockAzureChinaCloud:false}
    vmss.go:170: creating VMSS "7ehq-2026-01-19-flatcarazurecni" with BootstrapConfigMutator/NBC in resource group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3
    vmss.go:179: VMSS portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/7ehq-2026-01-19-flatcarazurecni/overview
    vmss.go:185: Managed cluster portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3/providers/Microsoft.ContainerService/managedClusters/abe2e-azure-network-v3-f69fa/overview
    vmss.go:287: 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:291: 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-azure-network-v3-f69fa_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/7ehq-2026-01-19-flatcarazurecni/virtualMachines/0" --name "abe2e-azure-network-v3-f69fa-bastion" --resource-group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3 --auth-type ssh-key --username azureuser --ssh-key /tmp/private-key-2343625660
        
    vmss.go:341: VM reached running state
    vmss.go:232: created VMSS 7ehq-2026-01-19-flatcarazurecni in resource group MC_abe2e-westus3_abe2e-azure-network-v3-f69fa_westus3
    kube.go:148: waiting for node 7ehq-2026-01-19-flatcarazurecni to be ready in k8s API
    kube.go:184: node 7ehq-2026-01-19-flatcarazurecni000000 is ready. Taints: null Conditions: [{"type":"MemoryPressure","status":"False","lastHeartbeatTime":"2026-01-19T15:15:37Z","lastTransitionTime":"2026-01-19T15:15:37Z","reason":"KubeletHasSufficientMemory","message":"kubelet has sufficient memory available"},{"type":"DiskPressure","status":"False","lastHeartbeatTime":"2026-01-19T15:15:37Z","lastTransitionTime":"2026-01-19T15:15:37Z","reason":"KubeletHasNoDiskPressure","message":"kubelet has no disk pressure"},{"type":"PIDPressure","status":"False","lastHeartbeatTime":"2026-01-19T15:15:37Z","lastTransitionTime":"2026-01-19T15:15:37Z","reason":"KubeletHasSufficientPID","message":"kubelet has sufficient PID available"},{"type":"Ready","status":"True","lastHeartbeatTime":"2026-01-19T15:15:37Z","lastTransitionTime":"2026-01-19T15:15:37Z","reason":"KubeletReady","message":"kubelet is posting ready status"}]
    kube.go:150: waited for node 7ehq-2026-01-19-flatcarazurecni to be ready in k8s API for 19.224679ms
    strings.go:19: ⚠️ ##vso[task.logissue type=warning;] Node 7ehq-2026-01-19-flatcarazurecni took 3m4.009543336s to be created and 19.244679ms to be ready
    test_helpers.go:227: Choosing the private ACR "e2eprivateacrwestus3" for the vm validation
    test_helpers.go:748: SSH connectivity to 10.224.0.193 verified successfully
    validation.go:119: creating pod "7ehq-2026-01-19-flatcarazurecni000000-test-pod"
    validation.go:26: retrying pod "7ehq-2026-01-19-flatcarazurecni000000-test-pod" validation (1/3)
    validation.go:119: creating pod "7ehq-2026-01-19-flatcarazurecni000000-test-pod"
    validation.go:26: retrying pod "7ehq-2026-01-19-flatcarazurecni000000-test-pod" validation (2/3)
    validation.go:119: c
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