+# Optional filtering of test matrix: per-lab, per-pod, per-installer
+# e.g. To check zte-pod{2,3} against all installer adapters:
+# ./config/utils/check-jinja2.sh zte 'pod(2|3)'
+FILTER_LAB=${1:-*} # e.g. 'zte' (glob)
+FILTER_POD=${2:-(pod|virtual)[[:digit:]]+} # e.g. 'pod1' (regex)
+FILTER_IA=${3:-*} # e.g. 'fuel' (glob)
+