wcnscripts
A collection of Windows container networking troubleshooting scripts and manifests, primarily targeting networking issues in the Azure Kubernetes Service.
Scripts directory
scripts contains network troubleshooting PowerShell scripts.
Manifests directory
manifests contains manifests (.yaml) to help monitor/remedy K8s Windows networking issues.
Examples
Kube-proxy / CNI issues:
To investigate kube-proxy or CNI issues, run the following:
- Before the repro: collect-windows-logs
- Start HNS trace: starthnstrace.ps1
- Reproduce the issue
- Stop the HNS trace: press 'q' in shell from step #2
- After the repro: collect-windows-logs
Data path issues:
To investigate data path issues such as intermittent packet loss:
- Before the repro: collect-windows-logs
- Start packet trace: startpacketcapture.ps1
- Reproduce the issue
- Stop the packet capture trace: press 'q' in shell from step #2
- After the repro: collect-windows-logs
Control-plane issues:
To investigate control-plane issues, run the following:
- Before the repro: collect-windows-logs
- Start HNS trace: starthnstrace.ps1
- Reproduce the issue
- Stop the HNS trace: press 'q' in shell from step #2
- After the repro: collect-windows-logs
DNS issues:
To investigate DNS issues:
- Before the repro: collect-windows-logs
- Start monitoring DNS rules/policies/counters: monitorDNS
- Start packet trace: startpacketcapture.ps1
- Reproduce the issue
- Stop the packet capture trace: press 'q' in shell from step #3
- Stop the DNS monitoring from step #2 (press Ctrl+C)
- After the repro: collect-windows-logs
Contributing
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This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.
Trademarks
This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.