except IOError:
node_pkey_file = config_dir + os.sep + "node.key"
node_gid_file = config_dir + os.sep + "node.gid"
+ cert_filename = path + os.sep + 'server.cert'
if not os.path.exists(node_pkey_file) or \
not os.path.exists(node_gid_file):
self.get_node_key()
gid = GID(filename=node_gid_file)
hrn = gid.get_hrn()
# get credential from registry
+ cert_str = Certificate(filename=cert_filename).save_to_string(save_parents=True)
registry = self.get_registry()
cred = registry.get_self_credential(cert_str, 'node', hrn)
Credential(string=cred).save_to_file(credfile, save_parents=True)