skill-kql-queries

[Skill] kql, queries, log analytics, container logs - KQL query templates for Koji container logs, pod errors, restarts, Kubernetes events, build job activity, and node resource usage via Log Analytics.

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Koji KQL Log Queries

Tools

Tool	Purpose
`monitor_workspace_log_query`	KQL queries across entire Log Analytics workspace
`monitor_resource_log_query`	KQL queries scoped to a specific resource
`monitor_table_list`	List available tables in the workspace

Koji pod namespace

Koji pods run in the default namespace. Always filter:

Namespace == "default" (KubePodInventory, KubeEvents)
PodNamespace == "default" (ContainerLogV2)
Combine with: Name startswith "koji-" or PodName startswith "koji-"

Query reference

Pod health and status

KubePodInventory
| where Namespace == "default"
| where Name startswith "koji-"
| summarize arg_max(TimeGenerated, *) by Name
| project TimeGenerated, Name, ContainerStatus, ContainerRestartCount, PodRestartCount
| order by Name asc

Container errors (all Koji pods)

ContainerLogV2
| where PodNamespace == "default"
| where PodName startswith "koji-"
| where LogLevel == "error" or LogMessage contains "ERROR" or LogMessage contains "Traceback"
| project TimeGenerated, PodName, LogMessage
| order by TimeGenerated desc
| take 50

Koji Hub logs

ContainerLogV2
| where PodNamespace == "default"
| where PodName startswith "koji-hub"
| project TimeGenerated, PodName, LogMessage
| order by TimeGenerated desc
| take 100

Koji Builder logs

ContainerLogV2
| where PodNamespace == "default"
| where PodName startswith "koji-builder"
| project TimeGenerated, PodName, LogMessage
| order by TimeGenerated desc
| take 100

Node resource usage

Perf
| where ObjectName == "K8SNode"
| where CounterName in ("cpuUsageNanoCores", "cpuCapacityNanoCores", "memoryWorkingSetBytes", "memoryCapacityBytes")
| summarize AvgValue=avg(CounterValue) by Computer, CounterName
| evaluate pivot(CounterName, take_any(AvgValue))
| extend CPUPercent = round(cpuUsageNanoCores / cpuCapacityNanoCores * 100, 1),
         MemPercent = round(memoryWorkingSetBytes / memoryCapacityBytes * 100, 1),
         MemUsedGB = round(memoryWorkingSetBytes / 1073741824, 1),
         MemCapGB = round(memoryCapacityBytes / 1073741824, 1)
| project Computer, CPUPercent, MemPercent, MemUsedGB, MemCapGB
| order by Computer asc

Pod restarts

KubePodInventory
| where Namespace == "default"
| where Name startswith "koji-"
| summarize MaxRestarts = max(ContainerRestartCount) by Name, ContainerName, ContainerStatus
| where MaxRestarts > 0
| order by MaxRestarts desc

Kubernetes warning events

KubeEvents
| where Namespace == "default"
| where Name startswith "koji-"
| where Reason in ("BackOff", "Unhealthy", "Failed", "Killing", "OOMKilling")
| project TimeGenerated, Name, Reason, Message
| order by TimeGenerated desc
| take 50

KubeEvents may be empty under Group-Default DCR preset. Fall back to KubePodInventory restart counts.

Build job activity

ContainerLogV2
| where PodNamespace == "default"
| where PodName startswith "koji-builder"
| where LogMessage contains "build" or LogMessage contains "task"
| project TimeGenerated, PodName, LogMessage
| order by TimeGenerated desc
| take 100

Repository: microsoft/azurelinux
Path: .github/skills/skill-kql-queries/SKILL.md
Commit: 9e308ff

Last updated: 6 days ago
First committed: 5 months ago

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