Add new conditionalHnsRestarter.p1 script #7
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Script to be used to restart HNS based when certain condition is met, to help mitigate issues in customer AKS nodes. Script currently supports checking for missing rules on pod-endpoints.
Example command:
conditionalHnsRestarter.ps1 -PodPortRulesToCheck @{"ruleRegex" = "LB_DSR_[0-9A-Z]+_[\d\.]+_[\d\.]+_801_801_17"; "layerName" = "LB_DSR"; "groupName" = "LB_DSR_IPv4_OUT"}
….ps1 This is a generic mitigator script. Currently it checks pod port rules and restarts HNS when rules are not found. It can be extended for other mitigation steps as well, since the mitigation logic can be similar.
| { | ||
| if ($CollectWindowsLogs -eq $true) { | ||
| # create log path if not yet created. | ||
| mkdir -Force $LogsPath |
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If $CollectWindowsLogs is $true and issue happens very frequently, there are chances multiple log files will be created. This will consume lot of customer's space.
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Yes, we will need to add a rotation logic for the same. Will add that.
princepereira
approved these changes
Jul 26, 2023
hnsCrashEventChecker.yaml is a daemonset that looks for HNS crash win-event logs. Once applied on a kubernetes cluster, user can execute below command to know the timestamps when HNS crashed occurred on respective windows nodes: kubectl logs -l name=hns-crash-event-checker --all-containers=true
Making the daemonset generic such that it can be used for any service (not just HNS). The $ServiceName variable needs to be edited for this.
Last edit missed the daemonset code.
This daemonset enables collection of crash-dumps for user-space processes on AKS windows nodes.
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Is this ready for review / merging? |
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Script to be used to restart HNS based when certain condition is met, to help mitigate issues in customer AKS nodes. Script currently supports checking for missing rules on pod-endpoints.
Example command:
conditionalHnsRestarter.ps1 -PodPortRulesToCheck @{"ruleRegex" = "LB_DSR_[0-9A-Z]+[\d.]+[\d.]+_801_801_17"; "layerName" = "LB_DSR"; "groupName" = "LB_DSR_IPv4_OUT"}