rename hacks to scripts

scripts/exec-tool

@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+set -e
+
+args=()
+while [[ $# -gt 0 ]]; do
+    arg=$1
+    shift
+    case "$arg" in
+    -6)
+        ipv6_only=true
+        continue
+        ;;
+    -*) ;;
+    *)
+        if [[ -z $tool ]]; then
+            tool=$arg
+            continue
+        elif [[ -z $node ]]; then
+            node=$arg
+            continue
+        fi
+        ;;
+    esac
+    args+=("$arg")
+done
+
+tool=${tool?:"tool argument missing. should be one of iperf3,ping,curl,ab"}
+node=${node?:"node argument missing. should be 'node-1' , 'node-2' etc"}
+
+if [[ $node == node-* ]]; then
+    index=${node#node-}
+    if [[ $ipv6_only == true ]]; then
+        host="2001:0DB8::55$index"
+    else
+        host="10.55.$index.77"
+    fi
+else
+    host=$node
+fi
+
+connect_timeout_sec=3
+
+function with_set_x() {
+    set -x
+    "$@"
+    {
+        ec=$?
+        set +x
+        return $ec
+    } 2>/dev/null
+}
+
+case "$tool" in
+ping)
+    with_set_x exec ping -W $connect_timeout_sec "${args[@]}" "$host"
+    ;;
+iperf3)
+    port=5001
+    with_set_x exec iperf3 --client "$host" --port=$port --connect-timeout=$((connect_timeout_sec * 1000)) "${args[@]}"
+    ;;
+curl)
+    port=8080
+    if [[ $host = *:* ]]; then
+        host="[$host]"
+        args+=(--ipv6)
+    fi
+    with_set_x exec curl "http://$host:$port/" -v --connect-timeout $connect_timeout_sec "${args[@]}"
+    ;;
+ab)
+    port=8080
+    if [[ " ${args[*]}" != *" -n "* && " ${args[*]}" != *" -c "* ]]; then
+        args+=(-n 500 -c 50 "${args[@]}")
+    fi
+    with_set_x exec ab -s $connect_timeout_sec "${args[@]}" "http://$host:$port/"
+    ;;
+*)
+    echo "Unknown tool: $tool" >&2
+    exit 2
+    ;;
+esac