qrgen: add script to check if qrgen deployment works

verifier/qrverify.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+#
+# EP should contain the hostname?
+# If passing it is impossible, maybe we should interrogate Ingress resource?
+#
+# uuidgen comes from util-linux, zbarimg from zbar
+
+set -e
+
+DATA=$(uuidgen)
+TMPFILE=$(mktemp --suffix .png)
+
+echo "➡️  Checking ${EP} with data: ${DATA}"
+
+curl --verbose "http://${EP}/render/?data=${DATA}" --output ${TMPFILE}
+
+DECODED=$(zbarimg --quiet ${TMPFILE})
+
+if [ "QR-Code:${DATA}" != "${DECODED}" ]; then
+	echo "❌ Error, got ${DECODED}"
+	exit 1
+else
+	echo "✅ OK!"
+fi
+
+exit 0
+
+