Kubernetes¶

kubectl logs and stern produce repetitive, timestamped, container-prefixed streams. LogStrip collapses the repetition, sanitizes pod IDs / UUIDs, and keeps the crash window intact.

Single pod¶

kubectl logs -n prod deploy/api --tail=5000 > raw_logs.txt
npx -y logstrip raw_logs.txt -o clean.log --stats

Previous container (post-crash forensics)¶

kubectl logs -n prod pod/api-7d8c9 --previous \
  | npx -y logstrip -m auto > crash.log

-m auto joins multi-line stack traces across languages - useful when you don't know whether the app is Python, Node, Java, or Go.

Multi-pod with stern¶

stern tails every pod matching a selector:

stern --no-color -n prod 'api-.*' --since 10m \
  | npx -y logstrip --timeout 120 -o clean.log --stats

--no-color is required - ANSI escapes wreck dedup. --timeout 120 exits after two minutes; the output is still complete.

Filter to specific containers¶

kubectl logs -n prod deploy/api -c sidecar --tail=2000 \
  | npx -y logstrip -a aggressive --severity warn > clean.log

CronJob post-mortem¶

JOB=$(kubectl get jobs -n batch -o name | tail -1)
kubectl logs -n batch "$JOB" --all-containers > raw_logs.txt
npx -y logstrip raw_logs.txt -o clean.log --json > stats.json

stats.json includes detectedSources and detectedFormat, useful when piping into a triage agent.

Crash-loop debugging¶

for POD in $(kubectl get pods -n prod -l app=api -o name); do
  kubectl logs -n prod "$POD" --previous \
    >> raw_logs.txt 2>/dev/null || true
done

npx -y logstrip raw_logs.txt -m auto -o clean.log --stats

ArgoCD / GitOps pipeline¶

- name: Capture failing pod logs
  if: failure()
  run: |
    kubectl logs -n ${{ inputs.namespace }} \
      deploy/${{ inputs.app }} --tail=5000 > raw_logs.txt
    npx -y logstrip raw_logs.txt -o clean.log --stats

- name: Upload compact pod logs
  if: failure()
  uses: actions/upload-artifact@v4
  with:
    name: pod-logs-${{ inputs.app }}
    path: clean.log

See Supported Sources for the full list of Kubernetes-adjacent ecosystems LogStrip auto-detects (kubelet, etcd, CNI plugins, Helm, ArgoCD, Flux, etc.).