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kubetbs

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更新日2026年3月28日 06:54

Troubleshoot a problematic microservice in Kubernetes by correlating events, logs and pods across namespaces. Usage: /kubetbs <key> <user> <host_ip> <namespace> <service>

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ソース

incognia

incognia/rules

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Kubernetes troubleshooting

Arguments

Key: $0 (SSH key: incognia, faraday, kone, cad)
User: $1 (SSH user, e.g. ubuntu)
Host IP: $2 (server IP)
Namespace: $3 (namespace where the problem is)
Service: $4 (problematic service name, optional — if omitted, detect automatically)

Instructions

Read the full CoT: Load and follow ~/rules/cot/kubetbs.md from line 1 to end
Read the rules: Load ~/rules/rulesets/KUBETBS.md for methodology and common errors
Connect via SSH: ssh -i ~/.ssh/$0 $1@$2 — check ~/.ssh/config for custom port
Events: kubectl get events -n $3 --sort-by=.lastTimestamp | tail -30
Pods with restarts: kubectl get pods -n $3 --sort-by=.status.containerStatuses[0].restartCount | tail -20
If $4 was provided, focus on that service. Otherwise, pick the pod with most restarts.
Describe pod: kubectl describe pod -n $3 <pod> — identify owner and error
Logs by label: kubectl logs -n $3 -l app=$4 --since=60m --tail=500
Check Service/Endpoints: kubectl get svc,ep -n $3 | grep -E "$4|<dependency>"
Cross-namespace search: kubectl get svc -A | grep -i <dependency> if dependency not found locally
DNS verification: kubectl -n $3 run tmp --rm -it --image=busybox --restart=Never -- nslookup <dependency>.<namespace>.svc.cluster.local
Propose fix: describe correction WITHOUT deploying. Validate with temporary pod first.

Critical rule

Never deploy a fix without validating the hypothesis first. Use temporary busybox pod for DNS and connectivity checks.

Examples

/kubetbs kone ubuntu 30.30.40.90 sinaloa-qa ms-macroevento — troubleshoot specific service
/kubetbs kone ubuntu 30.30.40.90 michoacan-qa — auto-detect problematic service
/kubetbs cad ubuntu 10.0.1.50 produccion payments-api — client server

References

Detailed CoT: ~/rules/cot/kubetbs.md
Rules: ~/rules/rulesets/KUBETBS.md
Cluster analysis: /kube skill for general health first

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Kubernetes troubleshooting

Arguments

Key: $0 (SSH key: incognia, faraday, kone, cad)

User: $1 (SSH user, e.g. ubuntu)

Host IP: $2 (server IP)

Namespace: $3 (namespace where the problem is)

Service: $4 (problematic service name, optional — if omitted, detect automatically)

Instructions

Read the full CoT: Load and follow ~/rules/cot/kubetbs.md from line 1 to end

Read the rules: Load ~/rules/rulesets/KUBETBS.md for methodology and common errors

Connect via SSH: ssh -i ~/.ssh/$0 $1@$2 — check ~/.ssh/config for custom port

Events: kubectl get events -n $3 --sort-by=.lastTimestamp | tail -30

Pods with restarts: kubectl get pods -n $3 --sort-by=.status.containerStatuses[0].restartCount | tail -20

If $4 was provided, focus on that service. Otherwise, pick the pod with most restarts.

Describe pod: kubectl describe pod -n $3 <pod> — identify owner and error

Logs by label: kubectl logs -n $3 -l app=$4 --since=60m --tail=500

Check Service/Endpoints: kubectl get svc,ep -n $3 | grep -E "$4|<dependency>"

Cross-namespace search: kubectl get svc -A | grep -i <dependency> if dependency not found locally

DNS verification: kubectl -n $3 run tmp --rm -it --image=busybox --restart=Never -- nslookup <dependency>.<namespace>.svc.cluster.local

Propose fix: describe correction WITHOUT deploying. Validate with temporary pod first.

Critical rule

Never deploy a fix without validating the hypothesis first. Use temporary busybox pod for DNS and connectivity checks.

Examples

/kubetbs kone ubuntu 30.30.40.90 sinaloa-qa ms-macroevento — troubleshoot specific service

/kubetbs kone ubuntu 30.30.40.90 michoacan-qa — auto-detect problematic service

/kubetbs cad ubuntu 10.0.1.50 produccion payments-api — client server

References

Detailed CoT: ~/rules/cot/kubetbs.md

Rules: ~/rules/rulesets/KUBETBS.md

Cluster analysis: /kube skill for general health first

name	kubetbs
description	Troubleshoot a problematic microservice in Kubernetes by correlating events, logs and pods across namespaces. Usage: /kubetbs <key> <user> <host_ip> <namespace> <service>