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Kubernetes: Difference between revisions
→Scale to 0
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[https://stackoverflow.com/questions/64133011/scale-down-kubernetes-deployments-to-0-and-scale-back-to-original-number-of-repl reference]<br> | [https://stackoverflow.com/questions/64133011/scale-down-kubernetes-deployments-to-0-and-scale-back-to-original-number-of-repl reference]<br> | ||
If you wish to restart your cluster, you can scale your deployments and stateful sets down to 0 and then scale them back up after. | If you wish to restart your cluster, you can scale your deployments and stateful sets down to 0 and then scale them back up after. | ||
< | <syntaxhighlight lang="bash"> | ||
# Annotate existing deployments and statefulsets with replica count. | # Annotate existing deployments and statefulsets with replica count. | ||
kubectl get deploy -o jsonpath='{range .items[*]}{"kubectl annotate --overwrite deploy "}{@.metadata.name}{" previous-size="}{@.spec.replicas}{" \n"}{end}' | sh | kubectl get deploy -o jsonpath='{range .items[*]}{"kubectl annotate --overwrite deploy "}{@.metadata.name}{" previous-size="}{@.spec.replicas}{" \n"}{end}' | sh | ||
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kubectl get deploy -o jsonpath='{range .items[*]}{"kubectl scale deploy "}{@.metadata.name}{" --replicas="}{.metadata.annotations.previous-size}{"\n"}{end}' | sh | kubectl get deploy -o jsonpath='{range .items[*]}{"kubectl scale deploy "}{@.metadata.name}{" --replicas="}{.metadata.annotations.previous-size}{"\n"}{end}' | sh | ||
kubectl get sts -o jsonpath='{range .items[*]}{"kubectl scale deploy "}{@.metadata.name}{" --replicas="}{.metadata.annotations.previous-size}{"\n"}{end}' | sh | kubectl get sts -o jsonpath='{range .items[*]}{"kubectl scale deploy "}{@.metadata.name}{" --replicas="}{.metadata.annotations.previous-size}{"\n"}{end}' | sh | ||
</ | </syntaxhighlight> | ||
==Helm== | ==Helm== | ||