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Simplify CRD backup command (#8889) 

Co-authored-by: John Howard <howardjohn@google.com>
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Istio Automation 2021-02-01 17:04:59 -08:00 committed by GitHub
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content/en/docs/setup/install/helm/index.md
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@ -127,14 +127,13 @@ Before upgrading Istio in your cluster, we recommend creating a backup of your
custom configurations, and restoring it from backup if necessary:
{{< text bash >}}
$ kubectl get crds | grep 'istio.io' | cut -f1-1 -d "." | \
xargs -n1 -I{} sh -c "kubectl get --all-namespaces -o yaml {}; echo ---" > $HOME/ISTIO_RESOURCE_BACKUP.yaml
$ kubectl get istio-io --all-namespaces -oyaml > $HOME/istio_resource_backup.yaml
{{< /text >}}
You can restore your custom configuration like this:
{{< text bash >}}
$ kubectl apply -f $HOME/ISTIO_RESOURCE_BACKUP.yaml
$ kubectl apply -f $HOME/istio_resource_backup.yaml
{{< /text >}}
### Migrating from non-Helm installations