slapgrid: Provide requested state in buildout

Add a 'requested-state' entry in the slap-connection section set
to the requested state of the computer partition being processed.

slapos/grid/SlapObject.py

@@ -605,6 +605,7 @@ class Partition(object):
             'software_release_url': self.software_release_url,
             'key_file': self.key_file,
             'cert_file': self.cert_file,
+            'requested_state': self.computer_partition.getState(),
             'storage_home': self.instance_storage_home,
             'global_ipv4_network_prefix': self.ipv4_global_network,
         }

slapos/grid/templates/buildout-tail.cfg.in

@@ -13,6 +13,7 @@ server-url = %(server_url)s
 software-release-url = %(software_release_url)s
 key-file = %(key_file)s
 cert-file = %(cert_file)s
+requested-state = %(requested_state)s
 
 [slap_connection]
 # Kept for backward compatiblity

slapos/tests/test_object.py

@@ -147,6 +147,10 @@ class MasterMixin(BasicMixin, unittest.TestCase):
         computer_id='bidon',
         partition_id=partition_id)
 
+    # XXX ensure the partition has a state
+    slap_computer_partition._requested_state = getattr(
+          slap_computer_partition, '_requested_state', 'started')
+
     instance_path = os.path.join(self.instance_root, partition_id)
     os.mkdir(instance_path)
     os.chmod(instance_path, 0o750)