Add tcp-proxy.sh

tcp-proxy.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+#if [ "$#" -ne 2 ]; then
+#    echo "usage: $(basename $0) host port"
+#    exit 1
+#fi
+
+#HOST="$1"
+#PORT="$2"
+
+DOCKER_HOST_IP=$(route -n | awk '/UG[ \t]/{print $2}');
+
+LISTEN_PORT=${LISTEN_PORT:-${PORT}}
+HOST=${HOST:-${DOCKER_HOST_IP}}
+
+echo "relay TCP/IP connections on :${LISTEN_PORT} to ${HOST}:${PORT}"
+exec socat TCP-LISTEN:${LISTEN_PORT},fork,reuseaddr TCP:${HOST}:${PORT}