Add script to run a command on all nodes

scripts/command-on-all-nodes.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Run a specified deployment subcommand on all nodes
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+source ${SCRIPT_DIR}/lib.sh
+
+usage="Usage: $0 <machine-name-prefix> <command>"
+
+if [[ -n "$1" ]]; then
+        machine_name_prefix=$1
+else
+        echo ${usage}
+        exit 1
+fi
+
+if [[ -n "$2" ]]; then
+        command=$2
+else
+        echo ${usage}
+        exit 1
+fi
+
+run_on_all_nodes ${machine_name_prefix} "${command}"