Ondat Upgrade


This guide provides instructions on how to upgrade Ondat.

Upgrading An Ondat v2 Cluster


⚠️ Ensure that you have read the PIDs prerequisite introduced in Ondat v2.3 and that you have checked the init container logs to ensure your environments PID limits are set correctly.

💡 Pull down the new Ondat container image storageos/node:v2.8.2 onto the nodes beforehand so that the cluster spins up faster.

💡 Speak with our support team here so we can assist you with your upgrade.


Step 1 - Backup Ondat Deployment Manifests

Make sure that you keep a backup of all the Ondat YAML files. You can also backup the StatefulSet yaml files to keep track of the replicas.

kubectl get pod -n storageos -o yaml > storageos_operator.yaml
kubectl get storageoscluster -n storageos -o yaml > storageos_cr.yaml
kubectl get statefulset --all-namespaces > statefulset-sizes.yaml

Step 2 - Scale Down Stateful Applications To Zero

Scale all of the stateful applications that use Ondat volumes to 0.

Step 3 - Upgrade Ondat

Run the following command using the kubectl storageos plugin.

Make sure you are using the latest version of the kubectl storageos plugin. You can make use of the installation guide and get the latest version here.

kubectl storageos upgrade

💡 Please use the --etcd-tls-enabled if using TLS with your ETCD.

💡 If you are using a namespace other than storageos for your Ondat install, please use --uninstall-stos-operator-namespace argument because it uninstalls the cluster first and then reinstalls it with the new version.

💡 If at any point something goes wrong with the upgrade process, backups of all the relevant Kubernetes manifests can be found in ~/.kube/storageos/.

Step 4 - Scale Up Stateful Applications

Once the Ondat upgrade is complete and the core components are back online, scale up the stateful applications that use Ondat volumes back up to their respective replica count.