From: elumalai Date: Thu, 28 Apr 2022 13:39:31 +0000 (+0530) Subject: Feature 10910: Migration of Openstack based VM instances X-Git-Tag: v12.0.0rc1~17 X-Git-Url: https://osm.etsi.org/gitweb/?a=commitdiff_plain;h=8658c2cd33bcea66c9b99aabb0825071c5c42df0;p=osm%2FRO.git Feature 10910: Migration of Openstack based VM instances Added feature support for Migration of Openstack based VM instances from OSM Change-Id: I1e16c3ba323d284c30e4761aec614b18119691af Signed-off-by: elumalai --- diff --git a/NG-RO/osm_ng_ro/ns.py b/NG-RO/osm_ng_ro/ns.py index c9791895..bc8e6287 100644 --- a/NG-RO/osm_ng_ro/ns.py +++ b/NG-RO/osm_ng_ro/ns.py @@ -2335,3 +2335,118 @@ class Ns(object): return_data.append(task["action_id"]) return return_data, None, True + + def migrate_task( + self, vdu, vnf, vdu_index, action_id, nsr_id, task_index, extra_dict + ): + target_vim, vim_info = next(k_v for k_v in vdu["vim_info"].items()) + self._assign_vim(target_vim) + target_record = "vnfrs:{}:vdur.{}".format(vnf["_id"], vdu_index) + target_record_id = "vnfrs:{}:vdur.{}".format(vnf["_id"], vdu["id"]) + deployment_info = { + "action_id": action_id, + "nsr_id": nsr_id, + "task_index": task_index, + } + + task = Ns._create_task( + deployment_info=deployment_info, + target_id=target_vim, + item="migrate", + action="EXEC", + target_record=target_record, + target_record_id=target_record_id, + extra_dict=extra_dict, + ) + + return task + + def migrate(self, session, indata, version, nsr_id, *args, **kwargs): + task_index = 0 + extra_dict = {} + now = time() + action_id = indata.get("action_id", str(uuid4())) + step = "" + logging_text = "Task deploy nsr_id={} action_id={} ".format(nsr_id, action_id) + self.logger.debug(logging_text + "Enter") + try: + vnf_instance_id = indata["vnfInstanceId"] + step = "Getting vnfrs from db" + db_vnfr = self.db.get_one("vnfrs", {"_id": vnf_instance_id}) + vdu = indata.get("vdu") + migrateToHost = indata.get("migrateToHost") + db_new_tasks = [] + + with self.write_lock: + if vdu is not None: + vdu_id = indata["vdu"]["vduId"] + vdu_count_index = indata["vdu"].get("vduCountIndex", 0) + for vdu_index, vdu in enumerate(db_vnfr["vdur"]): + if ( + vdu["vdu-id-ref"] == vdu_id + and vdu["count-index"] == vdu_count_index + ): + extra_dict["params"] = { + "vim_vm_id": vdu["vim-id"], + "migrate_host": migrateToHost, + "vdu_vim_info": vdu["vim_info"], + } + step = "Creating migration task for vdu:{}".format(vdu) + task = self.migrate_task( + vdu, + db_vnfr, + vdu_index, + action_id, + nsr_id, + task_index, + extra_dict, + ) + db_new_tasks.append(task) + task_index += 1 + break + else: + + for vdu_index, vdu in enumerate(db_vnfr["vdur"]): + extra_dict["params"] = { + "vim_vm_id": vdu["vim-id"], + "migrate_host": migrateToHost, + "vdu_vim_info": vdu["vim_info"], + } + step = "Creating migration task for vdu:{}".format(vdu) + task = self.migrate_task( + vdu, + db_vnfr, + vdu_index, + action_id, + nsr_id, + task_index, + extra_dict, + ) + db_new_tasks.append(task) + task_index += 1 + + self.upload_all_tasks( + db_new_tasks=db_new_tasks, + now=now, + ) + + self.logger.debug( + logging_text + "Exit. Created {} tasks".format(len(db_new_tasks)) + ) + return ( + {"status": "ok", "nsr_id": nsr_id, "action_id": action_id}, + action_id, + True, + ) + except Exception as e: + if isinstance(e, (DbException, NsException)): + self.logger.error( + logging_text + "Exit Exception while '{}': {}".format(step, e) + ) + else: + e = traceback_format_exc() + self.logger.critical( + logging_text + "Exit Exception while '{}': {}".format(step, e), + exc_info=True, + ) + raise NsException(e) diff --git a/NG-RO/osm_ng_ro/ns_thread.py b/NG-RO/osm_ng_ro/ns_thread.py index cfd36ec0..617f58bb 100644 --- a/NG-RO/osm_ng_ro/ns_thread.py +++ b/NG-RO/osm_ng_ro/ns_thread.py @@ -1273,6 +1273,87 @@ class VimInteractionSdnNet(VimInteractionBase): return "DONE", ro_vim_item_update_ok +class VimInteractionMigration(VimInteractionBase): + def exec(self, ro_task, task_index, task_depends): + task = ro_task["tasks"][task_index] + task_id = task["task_id"] + db_task_update = {"retries": 0} + target_vim = self.my_vims[ro_task["target_id"]] + vim_interfaces = [] + created = False + created_items = {} + refreshed_vim_info = {} + + try: + if task.get("params"): + vim_vm_id = task["params"].get("vim_vm_id") + migrate_host = task["params"].get("migrate_host") + _, migrated_compute_node = target_vim.migrate_instance( + vim_vm_id, migrate_host + ) + + if migrated_compute_node: + # When VM is migrated, vdu["vim_info"] needs to be updated + vdu_old_vim_info = task["params"]["vdu_vim_info"].get( + ro_task["target_id"] + ) + + # Refresh VM to get new vim_info + vm_to_refresh_list = [vim_vm_id] + vim_dict = target_vim.refresh_vms_status(vm_to_refresh_list) + refreshed_vim_info = vim_dict[vim_vm_id] + + if refreshed_vim_info.get("interfaces"): + for old_iface in vdu_old_vim_info.get("interfaces"): + iface = next( + ( + iface + for iface in refreshed_vim_info["interfaces"] + if old_iface["vim_interface_id"] + == iface["vim_interface_id"] + ), + None, + ) + vim_interfaces.append(iface) + + ro_vim_item_update = { + "vim_id": vim_vm_id, + "vim_status": "ACTIVE", + "created": created, + "created_items": created_items, + "vim_details": None, + "vim_message": None, + } + + if refreshed_vim_info and refreshed_vim_info.get("status") not in ( + "ERROR", + "VIM_ERROR", + ): + ro_vim_item_update["vim_details"] = refreshed_vim_info["vim_info"] + + if vim_interfaces: + ro_vim_item_update["interfaces"] = vim_interfaces + + self.logger.debug( + "task={} {} vm-migration done".format(task_id, ro_task["target_id"]) + ) + + return "DONE", ro_vim_item_update, db_task_update + + except (vimconn.VimConnException, NsWorkerException) as e: + self.logger.error( + "task={} vim={} VM Migration:" + " {}".format(task_id, ro_task["target_id"], e) + ) + ro_vim_item_update = { + "vim_status": "VIM_ERROR", + "created": created, + "vim_message": str(e), + } + + return "FAILED", ro_vim_item_update, db_task_update + + class NsWorker(threading.Thread): REFRESH_BUILD = 5 # 5 seconds REFRESH_ACTIVE = 60 # 1 minute @@ -1320,6 +1401,9 @@ class NsWorker(threading.Thread): "affinity-or-anti-affinity-group": VimInteractionAffinityGroup( self.db, self.my_vims, self.db_vims, self.logger ), + "migrate": VimInteractionMigration( + self.db, self.my_vims, self.db_vims, self.logger + ), } self.time_last_task_processed = None # lists of tasks to delete because nsrs or vnfrs has been deleted from db diff --git a/NG-RO/osm_ng_ro/ro_main.py b/NG-RO/osm_ng_ro/ro_main.py index 2a2c076a..30acd2b6 100644 --- a/NG-RO/osm_ng_ro/ro_main.py +++ b/NG-RO/osm_ng_ro/ro_main.py @@ -109,6 +109,16 @@ valid_url_methods = { }, }, }, + "migrate": { + "": { + "METHODS": ("POST"), + "ROLE_PERMISSION": "migrate:id:", + "": { + "METHODS": ("GET",), + "ROLE_PERMISSION": "migrate:id:id:", + }, + }, + }, } }, } @@ -162,6 +172,7 @@ class Server(object): "deploy:id:id:cancel:post": self.ns.cancel, "recreate:id:post": self.ns.recreate, "recreate:id:id:get": self.ns.recreate_status, + "migrate:id:post": self.ns.migrate, } def _format_in(self, kwargs): diff --git a/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py b/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py index 59b4a50b..9eb1682f 100644 --- a/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py +++ b/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py @@ -1014,3 +1014,13 @@ class vimconnector(vimconn.VimConnector): return None except Exception as e: self.format_vimconn_exception(e) + + def migrate_instance(self, vm_id, compute_host=None): + """ + Migrate a vdu + param: + vm_id: ID of an instance + compute_host: Host to migrate the vdu to + """ + # TODO: Add support for migration + raise vimconn.VimConnNotImplemented("Not implemented") diff --git a/RO-VIM-azure/osm_rovim_azure/vimconn_azure.py b/RO-VIM-azure/osm_rovim_azure/vimconn_azure.py index d4ef9535..362d14e0 100755 --- a/RO-VIM-azure/osm_rovim_azure/vimconn_azure.py +++ b/RO-VIM-azure/osm_rovim_azure/vimconn_azure.py @@ -2000,6 +2000,16 @@ class vimconnector(vimconn.VimConnector): else: return self._default_admin_user + def migrate_instance(self, vm_id, compute_host=None): + """ + Migrate a vdu + param: + vm_id: ID of an instance + compute_host: Host to migrate the vdu to + """ + # TODO: Add support for migration + raise vimconn.VimConnNotImplemented("Not implemented") + if __name__ == "__main__": # Init logger diff --git a/RO-VIM-gcp/osm_rovim_gcp/vimconn_gcp.py b/RO-VIM-gcp/osm_rovim_gcp/vimconn_gcp.py index 35ccd876..e6823dcb 100644 --- a/RO-VIM-gcp/osm_rovim_gcp/vimconn_gcp.py +++ b/RO-VIM-gcp/osm_rovim_gcp/vimconn_gcp.py @@ -1485,3 +1485,13 @@ class vimconnector(vimconn.VimConnector): ) ) self._format_vimconn_exception(e) + + def migrate_instance(self, vm_id, compute_host=None): + """ + Migrate a vdu + param: + vm_id: ID of an instance + compute_host: Host to migrate the vdu to + """ + # TODO: Add support for migration + raise vimconn.VimConnNotImplemented("Not implemented") diff --git a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py index ab9ef306..6b46dc11 100644 --- a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py +++ b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py @@ -32,6 +32,7 @@ to the VIM connector's SFC resources as follows: import copy from http.client import HTTPException +import json import logging from pprint import pformat import random @@ -3558,3 +3559,162 @@ class vimconnector(vimconn.VimConnector): ConnectionError, ) as e: self._format_exception(e) + + def get_vdu_state(self, vm_id): + """ + Getting the state of a vdu + param: + vm_id: ID of an instance + """ + self.logger.debug("Getting the status of VM") + self.logger.debug("VIM VM ID %s", vm_id) + self._reload_connection() + server = self.nova.servers.find(id=vm_id) + server_dict = server.to_dict() + vdu_data = [ + server_dict["status"], + server_dict["flavor"]["id"], + server_dict["OS-EXT-SRV-ATTR:host"], + server_dict["OS-EXT-AZ:availability_zone"], + ] + self.logger.debug("vdu_data %s", vdu_data) + return vdu_data + + def check_compute_availability(self, host, server_flavor_details): + self._reload_connection() + hypervisor_search = self.nova.hypervisors.search( + hypervisor_match=host, servers=True + ) + for hypervisor in hypervisor_search: + hypervisor_id = hypervisor.to_dict()["id"] + hypervisor_details = self.nova.hypervisors.get(hypervisor=hypervisor_id) + hypervisor_dict = hypervisor_details.to_dict() + hypervisor_temp = json.dumps(hypervisor_dict) + hypervisor_json = json.loads(hypervisor_temp) + resources_available = [ + hypervisor_json["free_ram_mb"], + hypervisor_json["disk_available_least"], + hypervisor_json["vcpus"] - hypervisor_json["vcpus_used"], + ] + compute_available = all( + x > y for x, y in zip(resources_available, server_flavor_details) + ) + if compute_available: + return host + + def check_availability_zone( + self, old_az, server_flavor_details, old_host, host=None + ): + self._reload_connection() + az_check = {"zone_check": False, "compute_availability": None} + aggregates_list = self.nova.aggregates.list() + for aggregate in aggregates_list: + aggregate_details = aggregate.to_dict() + aggregate_temp = json.dumps(aggregate_details) + aggregate_json = json.loads(aggregate_temp) + if aggregate_json["availability_zone"] == old_az: + hosts_list = aggregate_json["hosts"] + if host is not None: + if host in hosts_list: + az_check["zone_check"] = True + available_compute_id = self.check_compute_availability( + host, server_flavor_details + ) + if available_compute_id is not None: + az_check["compute_availability"] = available_compute_id + else: + for check_host in hosts_list: + if check_host != old_host: + available_compute_id = self.check_compute_availability( + check_host, server_flavor_details + ) + if available_compute_id is not None: + az_check["zone_check"] = True + az_check["compute_availability"] = available_compute_id + break + else: + az_check["zone_check"] = True + return az_check + + def migrate_instance(self, vm_id, compute_host=None): + """ + Migrate a vdu + param: + vm_id: ID of an instance + compute_host: Host to migrate the vdu to + """ + self._reload_connection() + vm_state = False + instance_state = self.get_vdu_state(vm_id) + server_flavor_id = instance_state[1] + server_hypervisor_name = instance_state[2] + server_availability_zone = instance_state[3] + try: + server_flavor = self.nova.flavors.find(id=server_flavor_id).to_dict() + server_flavor_details = [ + server_flavor["ram"], + server_flavor["disk"], + server_flavor["vcpus"], + ] + if compute_host == server_hypervisor_name: + raise vimconn.VimConnException( + "Unable to migrate instance '{}' to the same host '{}'".format( + vm_id, compute_host + ), + http_code=vimconn.HTTP_Bad_Request, + ) + az_status = self.check_availability_zone( + server_availability_zone, + server_flavor_details, + server_hypervisor_name, + compute_host, + ) + availability_zone_check = az_status["zone_check"] + available_compute_id = az_status.get("compute_availability") + + if availability_zone_check is False: + raise vimconn.VimConnException( + "Unable to migrate instance '{}' to a different availability zone".format( + vm_id + ), + http_code=vimconn.HTTP_Bad_Request, + ) + if available_compute_id is not None: + self.nova.servers.live_migrate( + server=vm_id, + host=available_compute_id, + block_migration=True, + disk_over_commit=False, + ) + state = "MIGRATING" + changed_compute_host = "" + if state == "MIGRATING": + vm_state = self.__wait_for_vm(vm_id, "ACTIVE") + changed_compute_host = self.get_vdu_state(vm_id)[2] + if vm_state and changed_compute_host == available_compute_id: + self.logger.debug( + "Instance '{}' migrated to the new compute host '{}'".format( + vm_id, changed_compute_host + ) + ) + return state, available_compute_id + else: + raise vimconn.VimConnException( + "Migration Failed. Instance '{}' not moved to the new host {}".format( + vm_id, available_compute_id + ), + http_code=vimconn.HTTP_Bad_Request, + ) + else: + raise vimconn.VimConnException( + "Compute '{}' not available or does not have enough resources to migrate the instance".format( + available_compute_id + ), + http_code=vimconn.HTTP_Bad_Request, + ) + except ( + nvExceptions.BadRequest, + nvExceptions.ClientException, + nvExceptions.NotFound, + ) as e: + self._format_exception(e) diff --git a/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py b/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py index e88cecc2..a5808003 100644 --- a/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py +++ b/RO-VIM-openvim/osm_rovim_openvim/vimconn_openvim.py @@ -1634,3 +1634,13 @@ class vimconnector(vimconn.VimConnector): ) print(text) return -vim_response.status_code, text + + def migrate_instance(self, vm_id, compute_host=None): + """ + Migrate a vdu + param: + vm_id: ID of an instance + compute_host: Host to migrate the vdu to + """ + # TODO: Add support for migration + raise vimconn.VimConnNotImplemented("Not implemented") diff --git a/RO-VIM-vmware/osm_rovim_vmware/vimconn_vmware.py b/RO-VIM-vmware/osm_rovim_vmware/vimconn_vmware.py index 0a220d6b..b3cff595 100644 --- a/RO-VIM-vmware/osm_rovim_vmware/vimconn_vmware.py +++ b/RO-VIM-vmware/osm_rovim_vmware/vimconn_vmware.py @@ -8659,3 +8659,13 @@ if [ "$1" = "precustomization" ];then poweron_task = self.get_task_from_response(response.text) return poweron_task + + def migrate_instance(self, vm_id, compute_host=None): + """ + Migrate a vdu + param: + vm_id: ID of an instance + compute_host: Host to migrate the vdu to + """ + # TODO: Add support for migration + raise vimconn.VimConnNotImplemented("Should have implemented this") diff --git a/RO-plugin/osm_ro_plugin/vimconn.py b/RO-plugin/osm_ro_plugin/vimconn.py index 8b207b18..b2ba9790 100644 --- a/RO-plugin/osm_ro_plugin/vimconn.py +++ b/RO-plugin/osm_ro_plugin/vimconn.py @@ -1078,6 +1078,15 @@ class VimConnector: """ raise VimConnNotImplemented("SFC support not implemented") + def migrate_instance(self, vm_id, compute_host=None): + """Migrate a vdu + Params: + vm_id: ID of an instance + compute_host: Host to migrate the vdu to + Returns the vm state or raises an exception upon error + """ + raise VimConnNotImplemented("Should have implemented this") + # NOT USED METHODS in current version. Deprecated @deprecated def host_vim2gui(self, host, server_dict): diff --git a/releasenotes/notes/feature_10910_Migration_of_Openstack_based_VM_instances-c0e6014d73a68a9b.yaml b/releasenotes/notes/feature_10910_Migration_of_Openstack_based_VM_instances-c0e6014d73a68a9b.yaml new file mode 100644 index 00000000..f4ee2d92 --- /dev/null +++ b/releasenotes/notes/feature_10910_Migration_of_Openstack_based_VM_instances-c0e6014d73a68a9b.yaml @@ -0,0 +1,22 @@ +####################################################################################### +# Copyright ETSI Contributors and Others. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +# implied. +# See the License for the specific language governing permissions and +# limitations under the License. +####################################################################################### +--- +features: + - | + Feature 10910 - Migration of Openstack based VM instances from OSM + This feature enables migration of virtual machine instances of VNFs across compute hosts. + Support added for Openstack VIM type.