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nevermosby/update-k8s-pv.sh

Created December 8, 2019 02:32
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manually update kubernetes PV path
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update-k8s-pv.sh
#!/bin/sh
# 1. delete pv, pv会变成terminating状态
kubectl delete pv [pv-name]
# 2. delete pvc, pvc会变成terminating状态
kubectl delete pvc [pvc-name-related-to-pv]
# 3. patch pvc to remove protection, 具体可以看这里：https://stackoverflow.com/questions/51358856/kubernetes-cant-delete-persistentvolumeclaim-pvc，然后pv和pvc就被干净删除了
kubectl patch pvc [pvc-name] -p '{"metadata":{"finalizers": []}}' --type=merge
# 4. update the local path and recreate pv, 因为我用了storageclass+volumeClaimTemplates，所以也会自动创建pvc
kubectl apply -f pv.yaml
# 5. restart pod, 如果你跟我一样用了statefulset，只要delete pod即可
kubectl delete [pod-name]
#
# do the loop if you have more than 1 pv need to update
#
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