Add ha_probe to the workflow

probe

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+# Wrapper for probe.jar - passes all arguments through.
+
+PROBE_JAR="/home/clustermaster/storage/cdn/serve/internal/probe/probe.jar"
+
+WORKDIR="/home/clustermaster/probe"
+
+cd "$WORKDIR" || { echo "probe: cannot cd to $WORKDIR" >&2; exit 1; }
+
+exec java -jar "$PROBE_JAR" "$@"