Add script for local testing to clean data, but keep existing config in place

local_test/clean_data.sh

@@ -0,0 +1,17 @@
+#!/bin/bash -Eeu
+
+cd $(dirname "$0")
+
+source vars.env
+
+echo "Cleaning data from ${TEST_DIR}"
+
+for ((I = 0; I < ${NUM_NODES}; I++))
+do
+  NODE_DIR="${TEST_DIR}/node${I}"
+  echo "Cleaning node ${I} at ${NODE_DIR}"
+  cd ${NODE_DIR}
+  rm *.db
+  rm logs/*
+  rm -rf jetstream
+done