Fix issue with stale kubelet volume metrics

check_full_pvs.sh

@@ -124,7 +124,7 @@ for ns in $ALLNS; do
   for pv in $usedstr; do 
     usedperc=$(echo "$pv" | awk '{print $10}')
     pvcname=$(echo "$pv" | awk '{print $2}')
-    size=$(echo "$pv" | awk '{print $7}' | numfmt --from=iec-i --to=iec-i --to-unit=Gi --round=up)
+    size=$(kubectl get pvc $pvcname -n $ns -o=jsonpath='{.status.capacity.storage}' | numfmt --from=iec-i --to=iec-i --to-unit=Gi --round=up)
     if (( $(bc <<< "($usedperc > $FULLTHRESHOLD)") )); then
       echo "Volume $pvcname is almost full: ${usedperc}%!"
       if [ $FIX -ne 0 ]; then