PSA: The Longhorn team has identified a critical issue that affects volume attachment in Longhorn v1.7.0. We are currently working on releasing v1.7.1, which will be available soon. If your Longhorn cluster contains

engine

resources with names in the format

<volume name>-e-<8-char random id>

that are created before v1.5.2 and v1.4.4, please put v1.7.0 upgrade on hold until v1.7.1 is available. You can use the following command to check if it is safe to upgrade your Longhorn cluster to v1.7.0:

[ $(kubectl -n longhorn-system get <http://engines.longhorn.io|engines.longhorn.io> -o name | grep -E '\-e\-[a-z0-9]{8}$' | wc -l) -gt 0 ] && echo "Please hold off on upgrading to v1.7.0 until v1.7.1 is available." || echo "Safe to upgrade to v1.7.0."