Revert "core: Update certificates as late as possible"

This reverts commit 202a9bcd because it caused
some test failures.

slapos/grid/SlapObject.py

@@ -452,6 +452,7 @@ class Partition(object):
           self.partition_id + '.key')
       self.cert_file = os.path.join(certificate_repository_path,
           self.partition_id + '.crt')
+      self._updateCertificate()
 
     try:
       self.retention_delay = float(retention_delay)
@@ -484,9 +485,6 @@ class Partition(object):
                                       required=bytes2human(required)))
 
   def _updateCertificate(self):
-    if getattr(self, "key_file", None) is None:
-      return 
-
     try:
       partition_certificate = self.computer_partition.getCertificate()
     except NotFoundError:

slapos/grid/slapgrid.py

@@ -954,11 +954,9 @@ stderr_logfile_backups=1
     except PromiseError as e:
       self.logger.error(e)
       if partition_access_status is None or not status_error:
-        local_partition._updateCertificate()
         computer_partition.error(e, logger=self.logger)
     else:
       if partition_access_status is None or status_error:
-        local_partition._updateCertificate()
         computer_partition.started()
 
   def processPromise(self, computer_partition):
@@ -1186,9 +1184,6 @@ stderr_logfile_backups=1
       self.logger.info('  Software path: %s' % software_path)
       self.logger.info('  Instance path: %s' % instance_path)
 
-      # Update certifcate at late as possible
-      local_partition._updateCertificate()
-
       # XXX this line breaks 37 tests
       # self.logger.info('  Instance type: %s' % computer_partition.getType())
       self.logger.info('  Instance status: %s' % computer_partition_state)
@@ -1793,7 +1788,6 @@ stderr_logfile_backups=1
             ipv4_global_network=self.ipv4_global_network,
           )
           local_partition.stop()
-          local_partition._updateCertificate()
           try:
             computer_partition.stopped()
           except (SystemExit, KeyboardInterrupt):