Delete any orphaned CNS volumes found in vCenter without a corresponding Kubernetes PV

remove-orphaned-cns-volumes.sh

#!/bin/bash
# Delete any orphaned CNS volumes found in vCenter without a corresponding Kubernetes PV.
#
# Usage:
#   ./remove-orphaned-cns-volumes.sh 
#   KUBECONFIG=whatever.kubeconfig FORCE=true ./remove-orphaned-cns-volumes.sh 

set -euo pipefail

delete_volume() {
    echo "Deleting volume: $1"
    govc volume.rm "$1"
}

temp_dir=$(mktemp -d)
govc volume.ls | sort > "$temp_dir/vcenter.txt"
# Retreive the PV list after CNS volumes to avoid race condition: new volumes may appear in this list, but no new volumes should be accidentally deleted.
kubectl get pv -o jsonpath='{range .items[*]}{.spec.csi.volumeHandle}{"\t"}{.metadata.name}{"\n"}{end}' | sort > "$temp_dir/kubernetes.txt"
orphaned=$(comm -23 "$temp_dir/vcenter.txt" "$temp_dir/kubernetes.txt")
rm -rf "$temp_dir"
if [ -z "$orphaned" ]
then
    echo "No orphaned CNS volumes found"
    exit
fi

echo "Found potentially orphaned CNS volumes:"
echo "$orphaned"

if [ -z "${FORCE-}" ]
then
    read -p "Delete CNS volumes? [y/N]" -n 1 -r
    echo
    if [[ ! $REPLY =~ ^[Yy]$ ]]
    then
        exit 1
    fi
fi

# Some careful wordsplitting: split the loop on lines, and then extract the first tab delimeted argument
IFS=$'\n'
for volume in $orphaned
do
  IFS=$'\t'
  # shellcheck disable=SC2086
  delete_volume $volume
done

Anyone seeing this error?

> govc volume.ls
16583672-ef49-4fb7-8153-b1a06b6f0c85	pvc-c485e476-3a96-4736-a646-845bf3075aed
> govc volume.rm pvc-c485e476-3a96-4736-a646-845bf3075aed
govc: ServerFaultCode: Received SOAP response fault from [<cs p:00007f0010029530, TCP:localhost:443>]: retrieveVStorageObject
InvalidArgument: pvc-c485e476-3a96-4736-a646-845bf3075aed is incorrectly formatted.