Longhorn REST API endpoint upgrade/reinstall error

Resolve the Longhorn REST API endpoint error that occurs during upgrades or reinstalls from versions earlier than 23.10.0 in Automation Suite.

Description

During an upgrade or reinstall process from a version earlier than Automation Suite 23.10.0, a Failed to set Longhorn RestApi Endpoint error can occur.

Solution

To fix this issue, take the following steps:

1. Remove the outdated Longhorn storageclass, by running the following command:

         for sc in $(kubectl get sc -o json | jq -r '.items[] | select(.provisioner=="driver.longhorn.io") | .metadata.name'); do
           kubectl delete sc "${sc}" --timeout=30s || true
         done
   

2. Restart the upgrade (or reinstall) process.