make the volume scripts ignore ephemeral volumes

delete-node-keys.sh

@@ -14,6 +14,7 @@ fi
 CONFIG_FILE="$1.yml"
 GLOBS_FILE="${2:-node-key-globs.txt}"
 SCRIPT_DIR="$(dirname "$0")"
+source "$SCRIPT_DIR/volume-utils.sh"
 
 # Try to find config file in multiple locations
 if [[ -f "$SCRIPT_DIR/$CONFIG_FILE" ]]; then
@@ -42,7 +43,7 @@ fi
 
 # Read volume keys from config file
 echo "Reading volume configuration from $CONFIG_PATH..."
-keys=$(cat "$CONFIG_PATH" | yaml2json - | jq '.volumes' | jq -r 'keys[]')
+keys=$(get_persistent_volume_keys "$CONFIG_PATH")
 
 if [[ -z "$keys" ]]; then
     echo "Error: No volumes found in configuration"