Remove busybox and copy system busybox in setup.py

setup.py

@@ -16,6 +16,10 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import sys
+import os
+import shutil
+import subprocess
+
 from setuptools import setup, find_packages
 from setuptools.command.test import test as TestCommand
 
@@ -39,6 +43,28 @@ class PyTest(TestCommand):
         sys.exit(errcode)
 
 
+BUSYBOX_PATH = "gns3server/compute/docker/resources/bin/busybox"
+
+
+def copy_busybox():
+    if not sys.platform.startswith("linux"):
+        return
+    if os.path.isfile(BUSYBOX_PATH):
+        return
+    for bb_cmd in ("busybox-static", "busybox.static", "busybox"):
+        bb_path = shutil.which(bb_cmd)
+        if bb_path:
+            if subprocess.call(["ldd", bb_path],
+                               stdin=subprocess.DEVNULL,
+                               stdout=subprocess.DEVNULL,
+                               stderr=subprocess.DEVNULL):
+                shutil.copy2(bb_path, BUSYBOX_PATH, follow_symlinks=True)
+                break
+    else:
+        raise SystemExit("No static busybox found")
+
+
+copy_busybox()
 dependencies = open("requirements.txt", "r").read().splitlines()
 
 setup(