feat: add script to extract client binary from docker image

Signed-off-by: Boris Glimcher <Boris.Glimcher@emc.com>

scripts/extract_agent.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+# SPDX-License-Identifier: Apache-2.0
+# Copyright (c) 2022 Dell Inc, or its subsidiaries.
+
+set -euxo pipefail
+
+# docker compose plugin
+command -v docker-compose || { shopt -s expand_aliases && alias docker-compose='docker compose'; }
+
+# let everything start
+sleep 5
+
+# print for debug
+docker-compose ps
+
+# run image and copy binary
+docker run --rm -it --platform=linux/arm64 -v /tmp:/tmp ghcr.io/opiproject/opi-sztp-client:main cp /opi-sztp-agent /tmp/
+
+# test file architecture is indeed ARM
+file /tmp/opi-sztp-agent
+
+# you can scp it into DPU now...
+echo ==================================
+echo You can now SCP pem files to the real DPU
+echo sshpass -p dpupass ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ConnectTimeout=3 /tmp/opi-sztp-agent dpuser@[dpu-ip]:~
+echo ==================================
+
+echo "DONE"