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Debugging

Terminal Tools

• kail
• kubetail

Events

kubectl events -A

Throw away container to run a command

# Check if ping is working
kubectl run -i --tty --rm pingtest --image=busybox --restart=Never -- /bin/sh -c "ping ipinfo.no"

# Check the service
kubectl run -i --tty --rm pingtest --image=busybox --restart=Never -- /bin/sh -c "ping http://pod1.myns:3333"

netshoot

a Docker + Kubernetes network trouble-shooting swiss-army container

• https://github.com/nicolaka/netshoot

Throw away container for debugging

kubectl run tmp-shell --rm -i --tty --image nicolaka/netshoot -- /bin/bash

On host network

kubectl run tmp-shell --rm -i --tty --overrides='{"spec": {"hostNetwork": true}}' --image nicolaka/netshoot -- /bin/bash