Kubernetes

• Special use Cases
• General Troubleshooting
• Deleting A Namespace

Special Use Cases

kubectl delete pods -n <namespace> --grace-period=0 --force
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• --grace-period: Period of time in seconds given to the resource to terminate gracefully. Ignored if negative. Set to 1 for immediate shutdown. Can only be set to 0 when —force is true (force deletion).
• --force: Only used when grace-period=0. If true, immediately remove resources from API and bypass graceful deletion. Note that immediate deletion of some resources may result in inconsistency or data loss and requires confirmation.

General Troubleshooting

• Describe pod
• logs pod
• exec into pod to see whats going on

Deleting A Namespace

delete_namespace.sh
#!/bin/bash

# ./delete_namespace.sh <namespace>

export k8s_namespace=$1

echo "~~ Removing deployments ~~"
kubectl get deployment -n "$k8s_namespace" | grep -v NAME | awk '{print $1}' | xargs -I arg kubectl delete deployment -n "$k8s_namespace" arg
echo ""
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