Updates branch sol006 with master
[osm/LCM.git] / osm_lcm / ROclient.py
index 6198527..cf11490 100644 (file)
@@ -112,14 +112,14 @@ class ROClient:
         'wim': ("name", "wim_url"),
         'vim_account': (),
         'wim_account': (),
-        'sdn': ("name", "port", 'ip', 'dpid', 'type'),
+        'sdn': ("name", 'type'),
     }
     timeout_large = 120
     timeout_short = 30
 
-    def __init__(self, loop, endpoint_url, **kwargs):
+    def __init__(self, loop, uri, **kwargs):
         self.loop = loop
-        self.endpoint_url = endpoint_url
+        self.uri = uri
 
         self.username = kwargs.get("username")
         self.password = kwargs.get("password")
@@ -127,7 +127,7 @@ class ROClient:
         self.tenant = None
         self.datacenter_id_name = kwargs.get("datacenter")
         self.datacenter = None
-        logger_name = kwargs.get('logger_name', 'ROClient')
+        logger_name = kwargs.get('logger_name', 'lcm.ro')
         self.logger = logging.getLogger(logger_name)
         if kwargs.get("loglevel"):
             self.logger.setLevel(kwargs["loglevel"])
@@ -143,11 +143,11 @@ class ROClient:
             return self.username
         elif index == 'password':
             return self.password
-        elif index == 'endpoint_url':
-            return self.endpoint_url
+        elif index == 'uri':
+            return self.uri
         else:
             raise KeyError("Invalid key '{}'".format(index))
-        
+
     def __setitem__(self, index, value):
         if index == 'tenant':
             self.tenant_id_name = value
@@ -157,14 +157,15 @@ class ROClient:
             self.username = value
         elif index == 'password':
             self.password = value
-        elif index == 'endpoint_url':
-            self.endpoint_url = value
+        elif index == 'uri':
+            self.uri = value
         else:
             raise KeyError("Invalid key '{}'".format(index))
         self.tenant = None      # force to reload tenant with different credentials
         self.datacenter = None  # force to reload datacenter with different credentials
 
-    def _parse(self, descriptor, descriptor_format, response=False):
+    @staticmethod
+    def _parse(descriptor, descriptor_format, response=False):
         if descriptor_format and descriptor_format != "json" and descriptor_format != "yaml":
             raise ROClientException("'descriptor_format' must be a 'json' or 'yaml' text")
         if descriptor_format != "json":
@@ -186,8 +187,18 @@ class ROClient:
         if response:
             raise ROClientException(error_text)
         raise ROClientException(error_text)
-    
-    def _parse_yaml(self, descriptor, response=False):
+
+    @staticmethod
+    def _parse_error_yaml(descriptor):
+        json_error = None
+        try:
+            json_error = yaml.load(descriptor, Loader=yaml.Loader)
+            return json_error["error"]["description"]
+        except Exception:
+            return str(json_error or descriptor)
+
+    @staticmethod
+    def _parse_yaml(descriptor, response=False):
         try:
             return yaml.load(descriptor, Loader=yaml.Loader)
         except yaml.YAMLError as exc:
@@ -280,45 +291,66 @@ class ROClient:
         :param ns_descriptor: instance descriptor obtained with self.show("ns", )
         :return: status, message: status can be BUILD,ACTIVE,ERROR, message is a text message
         """
-        net_total = 0
-        vm_total = 0
-        net_done = 0
-        vm_done = 0
+        error_list = []
+        total = {"VMs": 0, "networks": 0, "SDN_networks": 0}
+        done = {"VMs": 0, "networks": 0, "SDN_networks": 0}
 
-        def _get_ref(desc):  # return an identification for the network or vm. Try vim_id if exist, if not descriptor id
-            # for net
+        def _get_ref(desc):
+            # return an identification for the network or vm. Try vim_id if exist, if not descriptor id for net
             if desc.get("vim_net_id"):
-                return "'vim-id={}'".format(desc["vim_net_id"])
+                return "'vim-net-id={}'".format(desc["vim_net_id"])
             elif desc.get("ns_net_osm_id"):
                 return "'nsd-vld-id={}'".format(desc["ns_net_osm_id"])
             elif desc.get("vnf_net_osm_id"):
                 return "'vnfd-vld-id={}'".format(desc["vnf_net_osm_id"])
             # for VM
             elif desc.get("vim_vm_id"):
-                return "'vim-id={}'".format(desc["vim_vm_id"])
+                return "'vim-vm-id={}'".format(desc["vim_vm_id"])
             elif desc.get("vdu_osm_id"):
                 return "'vnfd-vdu-id={}'".format(desc["vdu_osm_id"])
             else:
                 return ""
 
-        for net in ns_descriptor["nets"]:
-            net_total += 1
-            if net["status"] in ("ERROR", "VIM_ERROR"):
-                return "ERROR", "VIM network ({}) on error: {}".format(_get_ref(net), net["error_msg"])
-            elif net["status"] == "ACTIVE":
-                net_done += 1
-        for vnf in ns_descriptor["vnfs"]:
-            for vm in vnf["vms"]:
-                vm_total += 1
-                if vm["status"] in ("ERROR", "VIM_ERROR"):
-                    return "ERROR", "VIM VM ({}) on error: {}".format(_get_ref(vm), vm["error_msg"])
-                elif vm["status"] == "ACTIVE":
-                    vm_done += 1
-
-        if net_total == net_done and vm_total == vm_done:
-            return "ACTIVE", "VMs {}, networks: {}".format(vm_total, net_total)
-        else:
-            return "BUILD", "VMs: {}/{}, networks: {}/{}".format(vm_done, vm_total, net_done, net_total)
+        def _get_sdn_ref(sce_net_id):
+            # look for the network associated to the SDN network and obtain the identification
+            net = next((x for x in ns_descriptor["nets"] if x.get("sce_net_id") == sce_net_id), None)
+            if not sce_net_id or not net:
+                return ""
+            return _get_ref(net)
+
+        try:
+            total["networks"] = len(ns_descriptor["nets"])
+            for net in ns_descriptor["nets"]:
+                if net["status"] in ("ERROR", "VIM_ERROR"):
+                    error_list.append("Error at VIM network {}: {}".format(_get_ref(net), net["error_msg"]))
+                elif net["status"] == "ACTIVE":
+                    done["networks"] += 1
+
+            total["SDN_networks"] = len(ns_descriptor["sdn_nets"])
+            for sdn_net in ns_descriptor["sdn_nets"]:
+                if sdn_net["status"] in ("ERROR", "VIM_ERROR", "WIM_ERROR"):
+                    error_list.append("Error at SDN network {}: {}".format(_get_sdn_ref(sdn_net.get("sce_net_id")),
+                                                                           sdn_net["error_msg"]))
+                elif sdn_net["status"] == "ACTIVE":
+                    done["SDN_networks"] += 1
+
+            for vnf in ns_descriptor["vnfs"]:
+                for vm in vnf["vms"]:
+                    total["VMs"] += 1
+                    if vm["status"] in ("ERROR", "VIM_ERROR"):
+                        error_list.append("Error at VIM VM {}: {}".format(_get_ref(vm), vm["error_msg"]))
+                    elif vm["status"] == "ACTIVE":
+                        done["VMs"] += 1
+            if error_list:
+                # skip errors caused because other dependendent task is on error
+                return "ERROR", "; ".join([el for el in error_list if "because depends on failed  ACTION" not in el])
+            if all(total[x] == done[x] for x in total):  # DONE == TOTAL for all items
+                return "ACTIVE", str({x: total[x] for x in total if total[x]})  # print only those which value is not 0
+            else:
+                return "BUILD", str({x: "{}/{}".format(done[x], total[x]) for x in total if total[x]})
+                # print done/total for each item if total is not 0
+        except Exception as e:
+            raise ROClientException("Unexpected RO ns descriptor. Wrong version? {}".format(e)) from e
 
     @staticmethod
     def check_action_status(action_descriptor):
@@ -414,23 +446,23 @@ class ROClient:
             tenant_text = "/" + self.tenant
 
         item_id = 0
-        url = "{}{}/{}".format(self.endpoint_url, tenant_text, item)
+        url = "{}{}/{}".format(self.uri, tenant_text, item)
         if self.check_if_uuid(item_id_name):
             item_id = item_id_name
             url += "/" + item_id_name
         elif item_id_name and item_id_name.startswith("'") and item_id_name.endswith("'"):
             item_id_name = item_id_name[1:-1]
         self.logger.debug("RO GET %s", url)
-        with aiohttp.Timeout(self.timeout_short):
-            async with session.get(url, headers=self.headers_req) as response:
-                response_text = await response.read()
-                self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
-                if response.status == 404:  # NOT_FOUND
-                    raise ROClientException("No {} found with id '{}'".format(item[:-1], item_id_name),
-                                            http_code=404)
-                if response.status >= 300:
-                    raise ROClientException(response_text, http_code=response.status)
-            content = self._parse_yaml(response_text, response=True)
+        # timeout = aiohttp.ClientTimeout(total=self.timeout_short)
+        async with session.get(url, headers=self.headers_req) as response:
+            response_text = await response.read()
+            self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
+            if response.status == 404:  # NOT_FOUND
+                raise ROClientException("No {} found with id '{}'".format(item[:-1], item_id_name),
+                                        http_code=404)
+            if response.status >= 300:
+                raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
+        content = self._parse_yaml(response_text, response=True)
 
         if item_id:
             return item_id
@@ -465,18 +497,18 @@ class ROClient:
             # check that exist
             uuid = await self._get_item_uuid(session, item, item_id_name, all_tenants)
 
-        url = "{}{}/{}/{}".format(self.endpoint_url, tenant_text, item, uuid)
+        url = "{}{}/{}/{}".format(self.uri, tenant_text, item, uuid)
         if extra_item:
             url += "/" + extra_item
             if extra_item_id:
                 url += "/" + extra_item_id
         self.logger.debug("GET %s", url)
-        with aiohttp.Timeout(self.timeout_short):
-            async with session.get(url, headers=self.headers_req) as response:
-                response_text = await response.read()
-                self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
-                if response.status >= 300:
-                    raise ROClientException(response_text, http_code=response.status)
+        # timeout = aiohttp.ClientTimeout(total=self.timeout_short)
+        async with session.get(url, headers=self.headers_req) as response:
+            response_text = await response.read()
+            self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
+            if response.status >= 300:
+                raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
 
         return self._parse_yaml(response_text, response=True)
 
@@ -484,7 +516,7 @@ class ROClient:
         if not self.tenant:
             self.tenant = await self._get_item_uuid(session, "tenants", self.tenant_id_name, None)
         return self.tenant
-    
+
     async def _get_datacenter(self, session):
         if not self.tenant:
             await self._get_tenant(session)
@@ -527,15 +559,15 @@ class ROClient:
         else:
             action = "/{}".format(action)
 
-        url = "{}{apiver}{tenant}/{item}{id}{action}".format(self.endpoint_url, apiver=api_version_text,
+        url = "{}{apiver}{tenant}/{item}{id}{action}".format(self.uri, apiver=api_version_text,
                                                              tenant=tenant_text, item=item, id=uuid, action=action)
         self.logger.debug("RO POST %s %s", url, payload_req)
-        with aiohttp.Timeout(self.timeout_large):
-            async with session.post(url, headers=self.headers_req, data=payload_req) as response:
-                response_text = await response.read()
-                self.logger.debug("POST {} [{}] {}".format(url, response.status, response_text[:100]))
-                if response.status >= 300:
-                    raise ROClientException(response_text, http_code=response.status)
+        # timeout = aiohttp.ClientTimeout(total=self.timeout_large)
+        async with session.post(url, headers=self.headers_req, data=payload_req) as response:
+            response_text = await response.read()
+            self.logger.debug("POST {} [{}] {}".format(url, response.status, response_text[:100]))
+            if response.status >= 300:
+                raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
 
         return self._parse_yaml(response_text, response=True)
 
@@ -557,14 +589,15 @@ class ROClient:
         else:
             uuid = item_id_name
 
-        url = "{}{}/{}/{}".format(self.endpoint_url, tenant_text, item, uuid)
+        url = "{}{}/{}/{}".format(self.uri, tenant_text, item, uuid)
         self.logger.debug("DELETE %s", url)
-        with aiohttp.Timeout(self.timeout_short):
-            async with session.delete(url, headers=self.headers_req) as response:
-                response_text = await response.read()
-                self.logger.debug("DELETE {} [{}] {}".format(url, response.status, response_text[:100]))
-                if response.status >= 300:
-                    raise ROClientException(response_text, http_code=response.status)
+        # timeout = aiohttp.ClientTimeout(total=self.timeout_short)
+        async with session.delete(url, headers=self.headers_req) as response:
+            response_text = await response.read()
+            self.logger.debug("DELETE {} [{}] {}".format(url, response.status, response_text[:100]))
+            if response.status >= 300:
+                raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
+
         return self._parse_yaml(response_text, response=True)
 
     async def _list_item(self, session, item, all_tenants=False, filter_dict=None):
@@ -577,19 +610,20 @@ class ROClient:
                 await self._get_tenant(session)
             tenant_text = "/" + self.tenant
 
-        url = "{}{}/{}".format(self.endpoint_url, tenant_text, item)
+        url = "{}{}/{}".format(self.uri, tenant_text, item)
         separator = "?"
         if filter_dict:
             for k in filter_dict:
                 url += separator + quote(str(k)) + "=" + quote(str(filter_dict[k]))
                 separator = "&"
         self.logger.debug("RO GET %s", url)
-        with aiohttp.Timeout(self.timeout_short):
-            async with session.get(url, headers=self.headers_req) as response:
-                response_text = await response.read()
-                self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
-                if response.status >= 300:
-                    raise ROClientException(response_text, http_code=response.status)
+        # timeout = aiohttp.ClientTimeout(total=self.timeout_short)
+        async with session.get(url, headers=self.headers_req) as response:
+            response_text = await response.read()
+            self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
+            if response.status >= 300:
+                raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
+
         return self._parse_yaml(response_text, response=True)
 
     async def _edit_item(self, session, item, item_id, descriptor, all_tenants=False):
@@ -603,16 +637,17 @@ class ROClient:
             tenant_text = "/" + self.tenant
 
         payload_req = yaml.safe_dump(descriptor)
-            
+
         # print payload_req
-        url = "{}{}/{}/{}".format(self.endpoint_url, tenant_text, item, item_id)
+        url = "{}{}/{}/{}".format(self.uri, tenant_text, item, item_id)
         self.logger.debug("RO PUT %s %s", url, payload_req)
-        with aiohttp.Timeout(self.timeout_large):
-            async with session.put(url, headers=self.headers_req, data=payload_req) as response:
-                response_text = await response.read()
-                self.logger.debug("PUT {} [{}] {}".format(url, response.status, response_text[:100]))
-                if response.status >= 300:
-                    raise ROClientException(response_text, http_code=response.status)
+        # timeout = aiohttp.ClientTimeout(total=self.timeout_large)
+        async with session.put(url, headers=self.headers_req, data=payload_req) as response:
+            response_text = await response.read()
+            self.logger.debug("PUT {} [{}] {}".format(url, response.status, response_text[:100]))
+            if response.status >= 300:
+                raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
+
         return self._parse_yaml(response_text, response=True)
 
     async def get_version(self):
@@ -621,21 +656,23 @@ class ROClient:
         :return: a list with integers ["major", "minor", "release"]. Raises ROClientException on Error,
         """
         try:
-            with aiohttp.ClientSession(loop=self.loop) as session:
-                url = "{}/version".format(self.endpoint_url)
+            response_text = ""
+            async with aiohttp.ClientSession(loop=self.loop) as session:
+                url = "{}/version".format(self.uri)
                 self.logger.debug("RO GET %s", url)
-                with aiohttp.Timeout(self.timeout_short):
-                    async with session.get(url, headers=self.headers_req) as response:
-                        response_text = await response.read()
-                        self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
-                        if response.status >= 300:
-                            raise ROClientException(response_text, http_code=response.status)
+                # timeout = aiohttp.ClientTimeout(total=self.timeout_short)
+                async with session.get(url, headers=self.headers_req) as response:
+                    response_text = await response.read()
+                    self.logger.debug("GET {} [{}] {}".format(url, response.status, response_text[:100]))
+                    if response.status >= 300:
+                        raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
+
                 for word in str(response_text).split(" "):
                     if "." in word:
                         version_text, _, _ = word.partition("-")
                         return version_text
                 raise ROClientException("Got invalid version text: '{}'".format(response_text), http_code=500)
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -656,7 +693,7 @@ class ROClient:
                 raise ROClientException("Invalid item {}".format(item))
             if item == 'tenant':
                 all_tenants = None
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 content = await self._list_item(session, self.client_to_RO[item], all_tenants=all_tenants,
                                                 filter_dict=filter_by)
             if isinstance(content, dict):
@@ -667,7 +704,7 @@ class ROClient:
                 else:
                     raise ROClientException("Output not a list neither dict with len equal 1", http_code=500)
                 return content
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -693,11 +730,11 @@ class ROClient:
             elif item == 'vim_account':
                 all_tenants = False
 
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 content = await self._get_item(session, self.client_to_RO[item], item_id_name, extra_item=extra_item,
                                                extra_item_id=extra_item_id, all_tenants=all_tenants)
                 return remove_envelop(item, content)
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -716,7 +753,7 @@ class ROClient:
             if item in ('tenant', 'vim', 'wim'):
                 all_tenants = None
 
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 result = await self._del_item(session, self.client_to_RO[item], item_id_name, all_tenants=all_tenants)
                 # in case of ns delete, get the action_id embeded in text
                 if item == "ns" and result.get("result"):
@@ -725,7 +762,7 @@ class ROClient:
                     if action_id:
                         result["action_id"] = action_id
                 return result
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -761,7 +798,7 @@ class ROClient:
 
             create_desc = self._create_envelop(item, desc)
 
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 _all_tenants = all_tenants
                 if item == 'vim':
                     _all_tenants = True
@@ -773,7 +810,7 @@ class ROClient:
                 outdata = await self._edit_item(session, self.client_to_RO[item], item_id, create_desc,
                                                 all_tenants=_all_tenants)
                 return remove_envelop(item, outdata)
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -814,11 +851,11 @@ class ROClient:
 
             create_desc = self._create_envelop(item, desc)
 
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 outdata = await self._create_item(session, self.client_to_RO[item], create_desc,
                                                   all_tenants=all_tenants)
                 return remove_envelop(item, outdata)
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -863,7 +900,7 @@ class ROClient:
             # create_desc = self._create_envelop(item, desc)
             create_desc = desc
 
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 _all_tenants = all_tenants
                 if item == 'vim':
                     _all_tenants = True
@@ -873,7 +910,7 @@ class ROClient:
                                                   item_id_name=item_id_name,  # item_id_name=item_id
                                                   action=action, all_tenants=_all_tenants)
                 return remove_envelop(item, outdata)
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -913,25 +950,25 @@ class ROClient:
                                         format(item))
             create_desc = self._create_envelop(item, desc)
             payload_req = yaml.safe_dump(create_desc)
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 # check that exist
                 item_id = await self._get_item_uuid(session, self.client_to_RO[item], item_id_name, all_tenants=True)
                 await self._get_tenant(session)
 
-                url = "{}/{tenant}/{item}/{item_id}".format(self.endpoint_url, tenant=self.tenant,
+                url = "{}/{tenant}/{item}/{item_id}".format(self.uri, tenant=self.tenant,
                                                             item=self.client_to_RO[item], item_id=item_id)
                 self.logger.debug("RO POST %s %s", url, payload_req)
-                with aiohttp.Timeout(self.timeout_large):
-                    async with session.post(url, headers=self.headers_req, data=payload_req) as response:
-                        response_text = await response.read()
-                        self.logger.debug("POST {} [{}] {}".format(url, response.status, response_text[:100]))
-                        if response.status >= 300:
-                            raise ROClientException(response_text, http_code=response.status)
+                # timeout = aiohttp.ClientTimeout(total=self.timeout_large)
+                async with session.post(url, headers=self.headers_req, data=payload_req) as response:
+                    response_text = await response.read()
+                    self.logger.debug("POST {} [{}] {}".format(url, response.status, response_text[:100]))
+                    if response.status >= 300:
+                        raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
 
                 response_desc = self._parse_yaml(response_text, response=True)
                 desc = remove_envelop(item, response_desc)
                 return desc
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -939,25 +976,26 @@ class ROClient:
     async def detach(self, item, item_id_name=None):
         # TODO replace the code with delete_item(vim_account,...)
         try:
-            with aiohttp.ClientSession(loop=self.loop) as session:
+            async with aiohttp.ClientSession(loop=self.loop) as session:
                 # check that exist
                 item_id = await self._get_item_uuid(session, self.client_to_RO[item], item_id_name, all_tenants=False)
                 tenant = await self._get_tenant(session)
 
-                url = "{}/{tenant}/{item}/{datacenter}".format(self.endpoint_url, tenant=tenant,
+                url = "{}/{tenant}/{item}/{datacenter}".format(self.uri, tenant=tenant,
                                                                item=self.client_to_RO[item], datacenter=item_id)
                 self.logger.debug("RO DELETE %s", url)
-                with aiohttp.Timeout(self.timeout_large):
-                    async with session.delete(url, headers=self.headers_req) as response:
-                        response_text = await response.read()
-                        self.logger.debug("DELETE {} [{}] {}".format(url, response.status, response_text[:100]))
-                        if response.status >= 300:
-                            raise ROClientException(response_text, http_code=response.status)
+
+                # timeout = aiohttp.ClientTimeout(total=self.timeout_large)
+                async with session.delete(url, headers=self.headers_req) as response:
+                    response_text = await response.read()
+                    self.logger.debug("DELETE {} [{}] {}".format(url, response.status, response_text[:100]))
+                    if response.status >= 300:
+                        raise ROClientException(self._parse_error_yaml(response_text), http_code=response.status)
 
                 response_desc = self._parse_yaml(response_text, response=True)
                 desc = remove_envelop(item, response_desc)
                 return desc
-        except aiohttp.errors.ClientOSError as e:
+        except (aiohttp.ClientOSError, aiohttp.ClientError) as e:
             raise ROClientException(e, http_code=504)
         except asyncio.TimeoutError:
             raise ROClientException("Timeout", http_code=504)
@@ -1071,35 +1109,35 @@ class ROClient:
             datacenter = self.get_datacenter(session)
 
         if action == "list":
-            url = "{}{}/vim/{}/{}".format(self.endpoint_url, tenant_text, datacenter, item)
+            url = "{}{}/vim/{}/{}".format(self.uri, tenant_text, datacenter, item)
             self.logger.debug("GET %s", url)
             mano_response = requests.get(url, headers=self.headers_req)
             self.logger.debug("RO response: %s", mano_response.text)
-            content = self._parse_yaml(mano_response.text, response=True)            
+            content = self._parse_yaml(mano_response.text, response=True)
             if mano_response.status_code == 200:
                 return content
             else:
-                raise ROClientException(str(content), http_code=mano_response.status)        
+                raise ROClientException(str(content), http_code=mano_response.status)
         elif action == "get" or action == "show":
-            url = "{}{}/vim/{}/{}/{}".format(self.endpoint_url, tenant_text, datacenter, item, uuid)
+            url = "{}{}/vim/{}/{}/{}".format(self.uri, tenant_text, datacenter, item, uuid)
             self.logger.debug("GET %s", url)
             mano_response = requests.get(url, headers=self.headers_req)
             self.logger.debug("RO response: %s", mano_response.text)
-            content = self._parse_yaml(mano_response.text, response=True)            
+            content = self._parse_yaml(mano_response.text, response=True)
             if mano_response.status_code == 200:
                 return content
             else:
-                raise ROClientException(str(content), http_code=mano_response.status)        
+                raise ROClientException(str(content), http_code=mano_response.status)
         elif action == "delete":
-            url = "{}{}/vim/{}/{}/{}".format(self.endpoint_url, tenant_text, datacenter, item, uuid)
+            url = "{}{}/vim/{}/{}/{}".format(self.uri, tenant_text, datacenter, item, uuid)
             self.logger.debug("DELETE %s", url)
             mano_response = requests.delete(url, headers=self.headers_req)
             self.logger.debug("RO response: %s", mano_response.text)
-            content = self._parse_yaml(mano_response.text, response=True)            
+            content = self._parse_yaml(mano_response.text, response=True)
             if mano_response.status_code == 200:
                 return content
             else:
-                raise ROClientException(str(content), http_code=mano_response.status)        
+                raise ROClientException(str(content), http_code=mano_response.status)
         elif action == "create":
             if "descriptor" in kwargs:
                 if isinstance(kwargs["descriptor"], str):
@@ -1110,7 +1148,7 @@ class ROClient:
                 descriptor = {item[:-1]: {"name": kwargs["name"]}}
             else:
                 raise ROClientException("Missing descriptor")
-        
+
             if item[:-1] not in descriptor or len(descriptor) != 1:
                 raise ROClientException("Descriptor must contain only one 'tenant' field")
             if "name" in kwargs:
@@ -1119,7 +1157,7 @@ class ROClient:
                 descriptor[item[:-1]]['description'] = kwargs["description"]
             payload_req = yaml.safe_dump(descriptor)
             # print payload_req
-            url = "{}{}/vim/{}/{}".format(self.endpoint_url, tenant_text, datacenter, item)
+            url = "{}{}/vim/{}/{}".format(self.uri, tenant_text, datacenter, item)
             self.logger.debug("RO POST %s %s", url, payload_req)
             mano_response = requests.post(url, headers=self.headers_req, data=payload_req)
             self.logger.debug("RO response: %s", mano_response.text)
@@ -1151,7 +1189,7 @@ if __name__ == '__main__':
     tenant_id = None
     vim_id = False
     loop = asyncio.get_event_loop()
-    myClient = ROClient(endpoint_url=RO_URL, loop=loop, loglevel="DEBUG")
+    myClient = ROClient(uri=RO_URL, loop=loop, loglevel="DEBUG")
     try:
         # test tenant
         content = loop.run_until_complete(myClient.get_list("tenant"))