Add python3 and script wrapper for modbus_server.

slapos/software/osie-plc/software.cfg

@@ -3,10 +3,12 @@ extends =
   buildout.hash.cfg
   https://lab.nexedi.com/nexedi/slapos/raw/1.0/component/fluentd/buildout.cfg
   https://lab.nexedi.com/nexedi/slapos/raw/1.0/stack/slapos.cfg
+  https://lab.nexedi.com/nexedi/slapos/raw/1.0/component/python3/buildout.cfg
 
 parts = 
   osie-repository
   osie-plc-egg
+  osie-plc-script
 
 # fix for pypi: https://mail.python.org/pipermail/distutils-sig/2017-October/031712.html
 index = https://pypi.python.org/simple/
@@ -23,6 +25,12 @@ recipe  = zc.recipe.egg:develop
 egg     = osie-plc
 setup   = ${osie-repository:location}/eggs/osie-plc/
 
+[osie-plc-script]
+recipe  = zc.recipe.egg:scripts
+eggs    = ${osie-plc-egg:egg}
+scripts = modbus_server=modbus_server-run
+#interpreter = ${python-interpreter:interpreter}
+
 [eggs]
 eggs +=
   ${osie-plc-egg:egg}