grid: pass cmmi shared path to software buildout

New `slapos_recipe_cmmi_shared_path` option from `slapos` section of
slapos config.
When running software buildout, this with be passed to buildout as
`buildout:slapos-recipe-cmmi-shared-path`

slapos.cfg.example

@@ -8,6 +8,7 @@ cert_file =  /etc/opt/slapos/ssl/computer.crt
 certificate_repository_path = /etc/opt/slapos/ssl/partition_pki
 software_root = /opt/slapgrid
 instance_root = /srv/slapgrid
+slapos_recipe_cmmi_shared_path = /opt/slapgrid/shared
 
 [slapformat]
 # Replace by your network interface providing IPv6 if you don't use re6st

slapos/grid/SlapObject.py

@@ -109,7 +109,8 @@ class Software(object):
                download_binary_dir_url=None, upload_binary_dir_url=None,
                download_from_binary_cache_url_blacklist=None,
                upload_to_binary_cache_url_blacklist=None,
-               software_min_free_space=None):
+               software_min_free_space=None,
+               slapos_recipe_cmmi_shared_path=None):
     """Initialisation of class parameters
     """
 
@@ -124,6 +125,7 @@ class Software(object):
     self.software_url_hash = md5digest(self.url)
     self.software_path = os.path.join(self.software_root,
                                       self.software_url_hash)
+    self.slapos_recipe_cmmi_shared_path = slapos_recipe_cmmi_shared_path
     self.buildout = buildout
     self.logger = logger
     self.signature_private_key_file = signature_private_key_file
@@ -258,6 +260,10 @@ class Software(object):
       additional_parameters = list(self._additional_buildout_parameters(extends_cache))
       additional_parameters.extend(['-c', buildout_cfg])
 
+      if self.slapos_recipe_cmmi_shared_path:
+        additional_parameters.append('buildout:slapos-recipe-cmmi-shared-path=%s' %
+            self.slapos_recipe_cmmi_shared_path)
+
       utils.bootstrapBuildout(path=self.software_path,
                               buildout=self.buildout,
                               logger=self.logger,

slapos/grid/slapgrid.py

@@ -556,7 +556,8 @@ stderr_logfile_backups=1
             shadir_ca_file=self.shadir_ca_file,
             shadir_cert_file=self.shadir_cert_file,
             shadir_key_file=self.shadir_key_file,
-            software_min_free_space=self.software_min_free_space)
+            software_min_free_space=self.software_min_free_space,
+            slapos_recipe_cmmi_shared_path=self.config.get('slapos_recipe_cmmi_shared_path'),)
 
         # call manager for every software release
         for manager in self._manager_list: