Add support VNFM auto heal and scale

Added two new interfaces to Prometheus Plugin. Tacker as a VNFM can
support AutoHeal and AutoScale operations for VNFs and CNFs through
External Monitoring Tools, without NFVO.

Implements: blueprint support-auto-lcm
Change-Id: Ib0b5fd9264d80b9666ce69190e0ee41bbde23fac

.zuul.yaml

@@ -299,6 +299,9 @@
             $TACKER_CONF:
               server_notification:
                 server_notification: true
+              prometheus_plugin:
+                auto_scaling: true
+                auto_healing: true
         tox_envlist: dsvm-functional-sol-v2
 
 - job:
@@ -608,6 +611,7 @@
                 fault_management: true
                 performance_management: true
                 auto_scaling: true
+                auto_healing: true
                 test_rule_with_promtool: true
         tox_envlist: dsvm-functional-sol-kubernetes-v2
     vars:

etc/tacker/api-paste.ini

@@ -8,7 +8,8 @@ use = egg:Paste#urlmap
 /vnflcm/v2: vnflcm_v2
 /vnffm/v1: vnffm_v1
 /vnfpm/v2: vnfpm_v2
-/alert/vnf_instances: prometheus_auto_scaling
+/alert/auto_scaling: prometheus_auto_scaling
+/alert/auto_healing: prometheus_auto_healing
 /alert: prometheus_fm
 /pm_event: prometheus_pm
 /server_notification: server_notification
@@ -93,6 +94,9 @@ paste.app_factory = tacker.sol_refactored.api.router:VnffmAPIRouterV1.factory
 [app:prometheus_auto_scaling]
 paste.app_factory = tacker.sol_refactored.api.prometheus_plugin_router:AutoScalingRouter.factory
 
+[app:prometheus_auto_healing]
+paste.app_factory = tacker.sol_refactored.api.prometheus_plugin_router:AutoHealingRouter.factory
+
 [app:prometheus_fm]
 paste.app_factory = tacker.sol_refactored.api.prometheus_plugin_router:FmAlertRouter.factory
 

releasenotes/notes/support-auto-heal-scale-with-vnfm-2f9a4533b12c96ed.yaml

@@ -0,0 +1,9 @@
+---
+features:
+  - |
+    In Prometheus Plugin, two new interfaces are added to implement AutoHeal
+    and AutoScale for VNF and CNF.
+    As a VNFM, Tacker can decide whether to perform heal and scale operations
+    through the received alarms sent by External Monitoring Tools, without
+    NFVO.
+    Added new user guide to help users understand the function.

tacker/sol_refactored/api/policies/vnfpm_v2.py

@@ -27,7 +27,8 @@ REPORT_GET = '/vnfpm/v2/pm_jobs/{id}/reports/{report_id}'
 
 POLICY_NAME_PROM_PLUGIN = 'tacker_PROM_PLUGIN_api:PROM_PLUGIN:{}'
 PROM_PLUGIN_PM_PATH = '/pm_event'
-PROM_PLUGIN_AUTO_SCALING_PATH = '/alert/vnf_instances'
+PROM_PLUGIN_AUTO_HEALING_PATH = '/alert/auto_healing'
+PROM_PLUGIN_AUTO_SCALING_PATH = '/alert/auto_scaling'
 
 rules = [
     policy.DocumentedRuleDefault(
@@ -107,6 +108,15 @@ rules = [
              'path': PROM_PLUGIN_PM_PATH}
         ]
     ),
+    policy.DocumentedRuleDefault(
+        name=POLICY_NAME_PROM_PLUGIN.format('auto_healing'),
+        check_str=RULE_ANY,
+        description="auto_healing",
+        operations=[
+            {'method': 'POST',
+             'path': PROM_PLUGIN_AUTO_HEALING_PATH}
+        ]
+    ),
     policy.DocumentedRuleDefault(
         name=POLICY_NAME_PROM_PLUGIN.format('auto_scaling'),
         check_str=RULE_ANY,
@@ -115,15 +125,6 @@ rules = [
             {'method': 'POST',
              'path': PROM_PLUGIN_AUTO_SCALING_PATH}
         ]
-    ),
-    policy.DocumentedRuleDefault(
-        name=POLICY_NAME_PROM_PLUGIN.format('auto_scaling_id'),
-        check_str=RULE_ANY,
-        description="auto_scaling_id",
-        operations=[
-            {'method': 'POST',
-             'path': PROM_PLUGIN_AUTO_SCALING_PATH + '/{vnfInstanceId}'}
-        ]
     )
 ]
 

tacker/sol_refactored/api/prometheus_plugin_router.py

@@ -33,11 +33,15 @@ class FmAlertRouter(prom_wsgi.PrometheusPluginAPIRouter):
     route_list = [("", {"POST": "alert"})]
 
 
+class AutoHealingRouter(prom_wsgi.PrometheusPluginAPIRouter):
+    controller = prom_wsgi.PrometheusPluginResource(
+        prometheus_plugin_controller.AutoHealingController(),
+        policy_name=vnfpm_policy_v2.POLICY_NAME_PROM_PLUGIN)
+    route_list = [("", {"POST": "auto_healing"})]
+
+
 class AutoScalingRouter(prom_wsgi.PrometheusPluginAPIRouter):
     controller = prom_wsgi.PrometheusPluginResource(
         prometheus_plugin_controller.AutoScalingController(),
         policy_name=vnfpm_policy_v2.POLICY_NAME_PROM_PLUGIN)
-    route_list = [
+    route_list = [("", {"POST": "auto_scaling"})]
-        ("", {"POST": "auto_scaling"}),
-        ("/{id}", {"POST": "auto_scaling"})
-    ]

tacker/sol_refactored/api/schemas/prometheus_plugin_schemas.py

@@ -34,11 +34,12 @@ Alert = {
                 },
                 'function_type': {
                     'type': 'string',
-                    'enum': ['vnffm', 'vnfpm', 'auto_scale']
+                    'enum': ['vnffm', 'vnfpm', 'auto_scale', 'auto_heal']
                 },
                 'job_id': {'type': 'string'},
                 'object_instance_id': {'type': 'string'},
                 'vnf_instance_id': {'type': 'string'},
+                'vnfc_info_id': {'type': 'string'},
                 'node': {'type': 'string'},
                 'perceived_severity': {
                     'type': 'string',

tacker/sol_refactored/common/config.py

@@ -162,6 +162,9 @@ PROMETHEUS_PLUGIN_OPTS = [
     cfg.BoolOpt('fault_management',
                 default=False,
                 help=_('Enable prometheus plugin fault management')),
+    cfg.BoolOpt('auto_healing',
+                default=False,
+                help=_('Enable prometheus plugin autohealing')),
     cfg.BoolOpt('auto_scaling',
                 default=False,
                 help=_('Enable prometheus plugin autoscaling')),
@@ -189,6 +192,22 @@ PROMETHEUS_PLUGIN_OPTS = [
                       'This configuration is changed in case of replacing '
                       'the original function with a vendor specific '
                       'function.')),
+    cfg.StrOpt('auto_healing_package',
+               default='tacker.sol_refactored.common.prometheus_plugin',
+               help=_('Package name for auto healing. '
+                      'This configuration is changed in case of replacing '
+                      'the original function with a vendor specific '
+                      'function.')),
+    cfg.StrOpt('auto_healing_class',
+               default='PrometheusPluginAutoHealing',
+               help=_('Class name for auto healing. '
+                      'This configuration is changed in case of replacing '
+                      'the original function with a vendor specific '
+                      'function.')),
+    cfg.IntOpt('timer_interval',
+               default=20,
+               help=_('Timeout (second) of packing for multiple '
+                      'auto healing.')),
     cfg.StrOpt('auto_scaling_package',
                default='tacker.sol_refactored.common.prometheus_plugin',
                help=_('Package name for auto scaling. '

tacker/sol_refactored/common/prometheus_plugin.py

@@ -145,7 +145,7 @@ class PrometheusPluginPm(PrometheusPlugin, mon_base.MonitoringPlugin):
             self._alert(kwargs['request'], body=kwargs['body'])
         except Exception as e:
             # All exceptions is ignored here and 204 response will always
-            # be returned. Because when tacker responds error to alertmanager,
+            # be returned because when tacker responds error to alertmanager,
             # alertmanager may repeat the same reports.
             LOG.error("%s: %s", e.__class__.__name__, e.args[0])
 
@@ -237,16 +237,16 @@ class PrometheusPluginPm(PrometheusPlugin, mon_base.MonitoringPlugin):
         result = []
         context = request.context
         datetime_now = datetime.datetime.now(datetime.timezone.utc)
-        for alt in body['alerts']:
+        for alert in body['alerts']:
-            if alt['labels']['function_type'] != 'vnfpm':
+            if alert['labels']['function_type'] != 'vnfpm':
                 continue
             try:
-                pm_job_id = alt['labels']['job_id']
+                pm_job_id = alert['labels']['job_id']
-                object_instance_id = alt['labels']['object_instance_id']
+                object_instance_id = alert['labels']['object_instance_id']
-                metric = alt['labels']['metric']
+                metric = alert['labels']['metric']
-                sub_object_instance_id = alt['labels'].get(
+                sub_object_instance_id = alert['labels'].get(
                     'sub_object_instance_id')
-                value = alt['annotations']['value']
+                value = alert['annotations']['value']
 
                 pm_job = pm_job_utils.get_pm_job(context, pm_job_id)
                 self.filter_alert_by_time(context, pm_job, datetime_now,
@@ -700,7 +700,7 @@ class PrometheusPluginFm(PrometheusPlugin, mon_base.MonitoringPlugin):
             self._alert(kwargs['request'], body=kwargs['body'])
         except Exception as e:
             # All exceptions is ignored here and 204 response will always
-            # be returned. Because when tacker responds error to alertmanager,
+            # be returned because when tacker responds error to alertmanager,
             # alertmanager may repeat the same reports.
             LOG.error("%s: %s", e.__class__.__name__, e.args[0])
 
@@ -831,18 +831,91 @@ class PrometheusPluginFm(PrometheusPlugin, mon_base.MonitoringPlugin):
     def _alert(self, request, body):
         now = datetime.datetime.now(datetime.timezone.utc)
         result = []
-        for alt in body['alerts']:
+        for alert in body['alerts']:
-            if alt['labels']['function_type'] != 'vnffm':
+            if alert['labels']['function_type'] != 'vnffm':
                 continue
             try:
                 alarms = self.create_or_update_alarm(
-                    request.context, alt, now)
+                    request.context, alert, now)
                 result.extend(alarms)
             except sol_ex.PrometheusPluginSkipped:
                 pass
         return result
 
 
+class PrometheusPluginAutoHealing(PrometheusPlugin, mon_base.MonitoringPlugin):
+    _instance = None
+
+    @staticmethod
+    def instance():
+        if PrometheusPluginAutoHealing._instance is None:
+            if not CONF.prometheus_plugin.auto_healing:
+                stub = mon_base.MonitoringPluginStub.instance()
+                PrometheusPluginAutoHealing._instance = stub
+            else:
+                PrometheusPluginAutoHealing()
+        return PrometheusPluginAutoHealing._instance
+
+    def __init__(self):
+        if PrometheusPluginAutoHealing._instance:
+            raise SystemError(
+                "Not constructor but instance() should be used.")
+        super(PrometheusPluginAutoHealing, self).__init__()
+        self.set_callback(self.default_callback)
+        PrometheusPluginAutoHealing._instance = self
+
+    def set_callback(self, notification_callback):
+        self.notification_callback = notification_callback
+
+    def alert(self, **kwargs):
+        try:
+            self._alert(kwargs['request'], body=kwargs['body'])
+        except Exception as e:
+            # All exceptions is ignored here and 204 response will always
+            # be returned because when tacker responds error to alertmanager,
+            # alertmanager may repeat the same reports.
+            LOG.error("%s: %s", e.__class__.__name__, e.args[0])
+
+    def default_callback(self, context, vnf_instance_id, vnfc_info_id):
+        self.rpc.enqueue_auto_heal_instance(
+            context, vnf_instance_id, vnfc_info_id)
+
+    @validator.schema(prometheus_plugin_schemas.AlertMessage)
+    def _alert(self, request, body):
+        context = request.context
+        alerts = (alert for alert in body['alerts'] if
+                  alert['status'] == 'firing' and
+                  alert['labels']['receiver_type'] == 'tacker' and
+                  alert['labels']['function_type'] == 'auto_heal')
+
+        for alert in alerts:
+            vnf_instance_id = alert['labels']['vnf_instance_id']
+            try:
+                inst = inst_utils.get_inst(context, vnf_instance_id)
+            except sol_ex.VnfInstanceNotFound:
+                continue
+            if inst.instantiationState != 'INSTANTIATED':
+                self.rpc.dequeue_auto_heal_instance(
+                    None, vnf_instance_id)
+
+            if (not inst.obj_attr_is_set('vnfConfigurableProperties')
+                    or not inst.vnfConfigurableProperties.get(
+                        'isAutohealEnabled')):
+                continue
+
+            vnfc_info_id = alert['labels']['vnfc_info_id']
+            result = {
+                vnfcInfo for vnfcInfo in inst.instantiatedVnfInfo.vnfcInfo
+                if vnfcInfo.id == vnfc_info_id
+            }
+            if not result:
+                continue
+
+            if self.notification_callback:
+                self.notification_callback(
+                    context, vnf_instance_id, vnfc_info_id)
+
+
 class PrometheusPluginAutoScaling(PrometheusPlugin, mon_base.MonitoringPlugin):
     _instance = None
 
@@ -861,7 +934,7 @@ class PrometheusPluginAutoScaling(PrometheusPlugin, mon_base.MonitoringPlugin):
             raise SystemError(
                 "Not constructor but instance() should be used.")
         super(PrometheusPluginAutoScaling, self).__init__()
-        self.notification_callback = self.default_callback
+        self.set_callback(self.default_callback)
         PrometheusPluginAutoScaling._instance = self
 
     def set_callback(self, notification_callback):
@@ -872,46 +945,46 @@ class PrometheusPluginAutoScaling(PrometheusPlugin, mon_base.MonitoringPlugin):
             self._alert(kwargs['request'], body=kwargs['body'])
         except Exception as e:
             # All exceptions is ignored here and 204 response will always
-            # be returned. Because when tacker responds error to alertmanager,
+            # be returned because when tacker responds error to alertmanager,
             # alertmanager may repeat the same reports.
             LOG.error("%s: %s", e.__class__.__name__, e.args[0])
 
     def default_callback(self, context, vnf_instance_id, scaling_param):
-        self.rpc.request_scale(context, vnf_instance_id, scaling_param)
+        self.rpc.trigger_scale(context, vnf_instance_id, scaling_param)
-
-    def skip_if_auto_scale_not_enabled(self, vnf_instance):
-        if (not vnf_instance.obj_attr_is_set('vnfConfigurableProperties') or
-                not vnf_instance.vnfConfigurableProperties.get(
-                    'isAutoscaleEnabled')):
-            raise sol_ex.PrometheusPluginSkipped()
-
-    def process_auto_scale(self, request, vnf_instance_id, auto_scale_type,
-                           aspect_id):
-        scaling_param = {
-            'type': auto_scale_type,
-            'aspectId': aspect_id,
-        }
-        context = request.context
-        if self.notification_callback:
-            self.notification_callback(context, vnf_instance_id, scaling_param)
 
     @validator.schema(prometheus_plugin_schemas.AlertMessage)
     def _alert(self, request, body):
-        result = []
-        for alt in body['alerts']:
-            if alt['labels']['function_type'] != 'auto_scale':
-                continue
-            try:
-                vnf_instance_id = alt['labels']['vnf_instance_id']
-                auto_scale_type = alt['labels']['auto_scale_type']
-                aspect_id = alt['labels']['aspect_id']
         context = request.context
+        alerts = (alert for alert in body['alerts'] if
+                  alert['status'] == 'firing' and
+                  alert['labels']['receiver_type'] == 'tacker' and
+                  alert['labels']['function_type'] == 'auto_scale')
 
+        for alert in alerts:
+            vnf_instance_id = alert['labels']['vnf_instance_id']
+            try:
                 inst = inst_utils.get_inst(context, vnf_instance_id)
-                self.skip_if_auto_scale_not_enabled(inst)
+            except sol_ex.VnfInstanceNotFound:
-                self.process_auto_scale(
+                continue
-                    request, vnf_instance_id, auto_scale_type, aspect_id)
+            if (inst.instantiationState != 'INSTANTIATED' or
-                result.append((vnf_instance_id, auto_scale_type, aspect_id))
+                    not inst.obj_attr_is_set('vnfConfigurableProperties') or
-            except sol_ex.PrometheusPluginSkipped:
+                    not inst.vnfConfigurableProperties.get(
-                pass
+                        'isAutoscaleEnabled')):
-        return result
+                continue
+
+            aspect_id = alert['labels']['aspect_id']
+            result = {
+                scaleStatus for scaleStatus in
+                inst.instantiatedVnfInfo.scaleStatus
+                if scaleStatus.aspectId == aspect_id
+            }
+            if not result:
+                continue
+
+            scaling_param = {
+                'type': alert['labels']['auto_scale_type'],
+                'aspectId': aspect_id,
+            }
+            if self.notification_callback:
+                self.notification_callback(
+                    context, vnf_instance_id, scaling_param)

tacker/sol_refactored/common/vnflcm_utils.py

@@ -0,0 +1,142 @@
+# Copyright (C) 2023 Fujitsu
+# All Rights Reserved.
+#
+#    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.
+
+from datetime import datetime
+
+from oslo_utils import uuidutils
+
+from tacker.sol_refactored.common import coordinate
+from tacker.sol_refactored.common import exceptions as sol_ex
+from tacker.sol_refactored.common import lcm_op_occ_utils as lcmocc_utils
+from tacker.sol_refactored.common import vnf_instance_utils as inst_utils
+from tacker.sol_refactored.conductor import conductor_rpc_v2
+from tacker.sol_refactored import objects
+from tacker.sol_refactored.objects.v2 import fields as v2fields
+
+
+# TODO(fengyi): The code of this function is all copied from the
+#  controller, which is not friendly to future development and
+#  maintenance, and may be refactored in the future. After
+#  refactoring, only the validation of the req body is left,
+#  and the creation of lcmocc and the call to start_lcm_op are
+#  all executed by the controller, notification driver, etc.
+@coordinate.lock_vnf_instance('{vnf_instance_id}')
+def heal(context, vnf_instance_id, body):
+    inst = inst_utils.get_inst(context, vnf_instance_id)
+
+    if inst.instantiationState != 'INSTANTIATED':
+        raise sol_ex.VnfInstanceIsNotInstantiated(inst_id=vnf_instance_id)
+
+    lcmocc_utils.check_lcmocc_in_progress(context, vnf_instance_id)
+
+    # check parameter for later use
+    is_all = body.get('additionalParams', {}).get('all', False)
+    if not isinstance(is_all, bool):
+        raise sol_ex.SolValidationError(
+            detail="additionalParams['all'] must be bool.")
+
+    if 'vnfcInstanceId' in body:
+        inst_info = inst.instantiatedVnfInfo
+        vnfc_id = []
+        if inst_info.obj_attr_is_set('vnfcInfo'):
+            vnfc_id = [vnfc.id for vnfc in inst_info.vnfcInfo]
+        for req_vnfc_id in body['vnfcInstanceId']:
+            if req_vnfc_id not in vnfc_id:
+                raise sol_ex.SolValidationError(
+                    detail="vnfcInstanceId(%s) does not exist."
+                           % req_vnfc_id)
+
+    lcmocc = new_lcmocc(vnf_instance_id, v2fields.LcmOperationType.HEAL, body)
+    lcmocc.create(context)
+
+    rpc = conductor_rpc_v2.VnfLcmRpcApiV2()
+    rpc.start_lcm_op(context, lcmocc.id)
+    return lcmocc
+
+
+# TODO(fengyi): The code of this function is all copied from the
+#  controller, which is not friendly to future development and
+#  maintenance, and may be refactored in the future. After
+#  refactoring, only the validation of the req body is left,
+#  and the creation of lcmocc and the call to start_lcm_op are
+#  all executed by the controller, notification driver, etc.
+@coordinate.lock_vnf_instance('{vnf_instance_id}')
+def scale(context, vnf_instance_id, body):
+    inst = inst_utils.get_inst(context, vnf_instance_id)
+
+    if inst.instantiationState != 'INSTANTIATED':
+        raise sol_ex.VnfInstanceIsNotInstantiated(inst_id=vnf_instance_id)
+
+    lcmocc_utils.check_lcmocc_in_progress(context, vnf_instance_id)
+
+    # check parameters
+    aspect_id = body['aspectId']
+    if 'numberOfSteps' not in body:
+        # set default value (1) defined by SOL specification for
+        # the convenience of the following methods.
+        body['numberOfSteps'] = 1
+
+    scale_level = _get_current_scale_level(inst, aspect_id)
+    max_scale_level = _get_max_scale_level(inst, aspect_id)
+    if scale_level is None or max_scale_level is None:
+        raise sol_ex.InvalidScaleAspectId(aspect_id=aspect_id)
+
+    num_steps = body['numberOfSteps']
+    if body['type'] == 'SCALE_IN':
+        num_steps *= -1
+    scale_level += num_steps
+    if scale_level < 0 or scale_level > max_scale_level:
+        raise sol_ex.InvalidScaleNumberOfSteps(
+            num_steps=body['numberOfSteps'])
+
+    lcmocc = new_lcmocc(vnf_instance_id, v2fields.LcmOperationType.SCALE, body)
+    lcmocc.create(context)
+
+    rpc = conductor_rpc_v2.VnfLcmRpcApiV2()
+    rpc.start_lcm_op(context, lcmocc.id)
+    return lcmocc
+
+
+def _get_current_scale_level(inst, aspect_id):
+    if (inst.obj_attr_is_set('instantiatedVnfInfo') and
+            inst.instantiatedVnfInfo.obj_attr_is_set('scaleStatus')):
+        for scale_info in inst.instantiatedVnfInfo.scaleStatus:
+            if scale_info.aspectId == aspect_id:
+                return scale_info.scaleLevel
+
+
+def _get_max_scale_level(inst, aspect_id):
+    if (inst.obj_attr_is_set('instantiatedVnfInfo') and
+            inst.instantiatedVnfInfo.obj_attr_is_set('maxScaleLevels')):
+        for scale_info in inst.instantiatedVnfInfo.maxScaleLevels:
+            if scale_info.aspectId == aspect_id:
+                return scale_info.scaleLevel
+
+
+def new_lcmocc(inst_id, operation, req_body,
+               op_state=v2fields.LcmOperationStateType.STARTING):
+    now = datetime.utcnow()
+    lcmocc = objects.VnfLcmOpOccV2(
+        id=uuidutils.generate_uuid(),
+        operationState=op_state,
+        stateEnteredTime=now,
+        startTime=now,
+        vnfInstanceId=inst_id,
+        operation=operation,
+        isAutomaticInvocation=False,
+        isCancelPending=False,
+        operationParams=req_body)
+
+    return lcmocc

tacker/sol_refactored/conductor/conductor_rpc_v2.py

@@ -95,5 +95,15 @@ class PrometheusPluginConductor(object):
     def store_job_info(self, context, report):
         self.cast(context, 'store_job_info', report=report)
 
-    def request_scale(self, context, id, scale_req):
+    def trigger_scale(self, context, id, scale_req):
-        self.cast(context, 'request_scale', id=id, scale_req=scale_req)
+        self.cast(context, 'trigger_scale', id=id, scale_req=scale_req)
+
+    def enqueue_auto_heal_instance(
+            self, context, vnf_instance_id, vnfc_info_id):
+        self.cast(context, 'enqueue_auto_heal_instance',
+                  vnf_instance_id=vnf_instance_id,
+                  vnfc_info_id=vnfc_info_id)
+
+    def dequeue_auto_heal_instance(self, context, vnf_instance_id):
+        self.cast(context, 'dequeue_auto_heal_instance',
+                  vnf_instance_id=vnf_instance_id)

tacker/sol_refactored/conductor/conductor_v2.py

@@ -394,8 +394,17 @@ class ConductorV2(object):
         self.vnfpm_driver.store_job_info(context, report)
 
     @log.log
-    def request_scale(self, context, id, scale_req):
+    def trigger_scale(self, context, id, scale_req):
-        self.prom_driver.request_scale(context, id, scale_req)
+        self.prom_driver.trigger_scale(context, id, scale_req)
+
+    @log.log
+    def enqueue_auto_heal_instance(
+            self, context, vnf_instance_id, vnfc_info_id):
+        self.prom_driver.enqueue_heal(context, vnf_instance_id, vnfc_info_id)
+
+    @log.log
+    def dequeue_auto_heal_instance(self, context, vnf_instance_id):
+        self.prom_driver.dequeue_heal(vnf_instance_id)
 
     @log.log
     def server_notification_notify(

tacker/sol_refactored/conductor/prometheus_plugin_driver.py

@@ -13,17 +13,66 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import threading
+
 from oslo_log import log as logging
 from tacker.sol_refactored.common import config as cfg
-from tacker.sol_refactored.common import http_client
+from tacker.sol_refactored.common import vnflcm_utils
+from tacker.sol_refactored import objects
 
 LOG = logging.getLogger(__name__)
 
 CONF = cfg.CONF
 
 
+class VnfmAutoHealTimer():
+    def __init__(self, context, vnf_instance_id,
+                 expiration_time, expiration_handler):
+        self.lock = threading.Lock()
+        self.expired = False
+        self.queue = set()
+        self.context = context
+        self.vnf_instance_id = vnf_instance_id
+        self.expiration_handler = expiration_handler
+        self.timer = threading.Timer(expiration_time, self.expire)
+        self.timer.start()
+
+    def expire(self):
+        _expired = False
+        with self.lock:
+            if not self.expired:
+                self._cancel()
+                _expired = True
+        if _expired:
+            self.expiration_handler(
+                self.context, self.vnf_instance_id, list(self.queue))
+
+    def add_vnfc_info_id(self, vnfc_info_id):
+        with self.lock:
+            if not self.expired:
+                self.queue.add(vnfc_info_id)
+
+    def _cancel(self):
+        self.timer.cancel()
+        self.expired = True
+
+    def cancel(self):
+        with self.lock:
+            if not self.expired:
+                self._cancel()
+
+    def __del__(self):
+        self.cancel()
+
+
 class PrometheusPluginDriverStub():
-    def request_scale(self, context, vnf_instance_id, scale_req):
+    def trigger_scale(self, context, vnf_instance_id, scale_req):
+        pass
+
+    def enqueue_heal(self, context, vnf_instance_id, vnfc_info_id):
+        pass
+
+    def dequeue_heal(self, vnf_instance_id):
         pass
 
 
@@ -34,6 +83,7 @@ class PrometheusPluginDriver():
     def instance():
         if PrometheusPluginDriver._instance is None:
             if (CONF.prometheus_plugin.auto_scaling or
+                    CONF.prometheus_plugin.auto_healing or
                     CONF.prometheus_plugin.fault_management or
                     CONF.prometheus_plugin.performance_management):
                 PrometheusPluginDriver()
@@ -45,19 +95,35 @@ class PrometheusPluginDriver():
     def __init__(self):
         if PrometheusPluginDriver._instance:
             raise SystemError("Not constructor but instance() should be used.")
-        auth_handle = http_client.KeystonePasswordAuthHandle(
-            auth_url=CONF.keystone_authtoken.auth_url,
-            username=CONF.keystone_authtoken.username,
-            password=CONF.keystone_authtoken.password,
-            project_name=CONF.keystone_authtoken.project_name,
-            user_domain_name=CONF.keystone_authtoken.user_domain_name,
-            project_domain_name=CONF.keystone_authtoken.project_domain_name)
-        self.client = http_client.HttpClient(auth_handle)
         PrometheusPluginDriver._instance = self
+        self.timer_map = {}
+        self.expiration_time = CONF.prometheus_plugin.timer_interval
 
-    def request_scale(self, context, vnf_instance_id, scale_req):
+    def enqueue_heal(self, context, vnf_instance_id, vnfc_info_id):
-        ep = CONF.v2_vnfm.endpoint
+        if vnf_instance_id not in self.timer_map:
-        url = f'{ep}/vnflcm/v2/vnf_instances/{vnf_instance_id}/scale'
+            self.timer_map[vnf_instance_id] = VnfmAutoHealTimer(
-        resp, _ = self.client.do_request(
+                context, vnf_instance_id, self.expiration_time,
-            url, "POST", context=context, body=scale_req, version="2.0.0")
+                self._timer_expired)
-        LOG.info("AutoScaling request is processed: %d.", resp.status_code)
+        self.timer_map[vnf_instance_id].add_vnfc_info_id(vnfc_info_id)
+
+    def dequeue_heal(self, vnf_instance_id):
+        if vnf_instance_id in self.timer_map:
+            self.timer_map[vnf_instance_id].cancel()
+            del self.timer_map[vnf_instance_id]
+
+    def _trigger_heal(self, context, vnf_instance_id, vnfc_info_ids):
+        heal_req = objects.HealVnfRequest(vnfcInstanceId=vnfc_info_ids)
+        body = heal_req.to_dict()
+        LOG.info(f"VNFM AutoHealing is triggered. vnf: {vnf_instance_id}, "
+                 f"vnfcInstanceId: {vnfc_info_ids}")
+        vnflcm_utils.heal(context, vnf_instance_id, body)
+
+    def _timer_expired(self, context, vnf_instance_id, vnfc_info_ids):
+        self.dequeue_heal(vnf_instance_id)
+        self._trigger_heal(context, vnf_instance_id, vnfc_info_ids)
+
+    def trigger_scale(self, context, vnf_instance_id, scale_req):
+        LOG.info(f"VNFM AutoScaling is triggered. vnf: {vnf_instance_id}, "
+                 f"type: {scale_req['type']}, aspectId: "
+                 f"{scale_req['aspectId']}")
+        vnflcm_utils.scale(context, vnf_instance_id, scale_req)

tacker/sol_refactored/controller/prometheus_plugin_controller.py

@@ -47,6 +47,19 @@ class FmAlertController(prom_wsgi.PrometheusPluginAPIController):
         return prom_wsgi.PrometheusPluginResponse(204, None)
 
 
+class AutoHealingController(prom_wsgi.PrometheusPluginAPIController):
+    def auto_healing(self, request, body):
+        if not CONF.prometheus_plugin.auto_healing:
+            raise sol_ex.PrometheusPluginNotEnabled(
+                name='Auto healing')
+        cls = mon_base.get_class(
+            CONF.prometheus_plugin.auto_healing_package,
+            CONF.prometheus_plugin.auto_healing_class)
+        mon_base.MonitoringPlugin.get_instance(cls).alert(
+            request=request, body=body)
+        return prom_wsgi.PrometheusPluginResponse(204, None)
+
+
 class AutoScalingController(prom_wsgi.PrometheusPluginAPIController):
     def auto_scaling(self, request, body):
         if not CONF.prometheus_plugin.auto_scaling:
@@ -58,6 +71,3 @@ class AutoScalingController(prom_wsgi.PrometheusPluginAPIController):
         mon_base.MonitoringPlugin.get_instance(cls).alert(
             request=request, body=body)
         return prom_wsgi.PrometheusPluginResponse(204, None)
-
-    def auto_scaling_id(self, request, _, body):
-        return self.auto_scaling(request, body)

tacker/sol_refactored/controller/vnflcm_v2.py

@@ -14,8 +14,6 @@
 #    under the License.
 
 
-from datetime import datetime
-
 from oslo_log import log as logging
 from oslo_utils import uuidutils
 
@@ -30,6 +28,7 @@ from tacker.sol_refactored.common import lcm_op_occ_utils as lcmocc_utils
 from tacker.sol_refactored.common import subscription_utils as subsc_utils
 from tacker.sol_refactored.common import vim_utils
 from tacker.sol_refactored.common import vnf_instance_utils as inst_utils
+from tacker.sol_refactored.common import vnflcm_utils
 from tacker.sol_refactored.conductor import conductor_rpc_v2
 from tacker.sol_refactored.controller import vnflcm_view
 from tacker.sol_refactored.nfvo import nfvo_client
@@ -153,22 +152,6 @@ class VnfLcmControllerV2(sol_wsgi.SolAPIController):
                                                        self.endpoint)
         return sol_wsgi.SolResponse(204, None)
 
-    def _new_lcmocc(self, inst_id, operation, req_body,
-            op_state=v2fields.LcmOperationStateType.STARTING):
-        now = datetime.utcnow()
-        lcmocc = objects.VnfLcmOpOccV2(
-            id=uuidutils.generate_uuid(),
-            operationState=op_state,
-            stateEnteredTime=now,
-            startTime=now,
-            vnfInstanceId=inst_id,
-            operation=operation,
-            isAutomaticInvocation=False,
-            isCancelPending=False,
-            operationParams=req_body)
-
-        return lcmocc
-
     @validator.schema(schema.VnfInfoModificationRequest_V200, '2.0.0')
     @coordinate.lock_vnf_instance('{id}')
     def update(self, request, id, body):
@@ -205,7 +188,8 @@ class VnfLcmControllerV2(sol_wsgi.SolAPIController):
                         detail="vnfcInstanceId(%s) does not exist."
                         % vnfc_mod['id'])
 
-        lcmocc = self._new_lcmocc(id, v2fields.LcmOperationType.MODIFY_INFO,
+        lcmocc = vnflcm_utils.new_lcmocc(
+            id, v2fields.LcmOperationType.MODIFY_INFO,
             body, v2fields.LcmOperationStateType.PROCESSING)
         lcmocc.create(context)
 
@@ -226,8 +210,8 @@ class VnfLcmControllerV2(sol_wsgi.SolAPIController):
 
         lcmocc_utils.check_lcmocc_in_progress(context, id)
 
-        lcmocc = self._new_lcmocc(id, v2fields.LcmOperationType.INSTANTIATE,
+        lcmocc = vnflcm_utils.new_lcmocc(
-                                  body)
+            id, v2fields.LcmOperationType.INSTANTIATE, body)
 
         req_param = lcmocc.operationParams
         # if there is partial vimConnectionInfo check and fulfill here.
@@ -260,8 +244,8 @@ class VnfLcmControllerV2(sol_wsgi.SolAPIController):
 
         lcmocc_utils.check_lcmocc_in_progress(context, id)
 
-        lcmocc = self._new_lcmocc(id, v2fields.LcmOperationType.TERMINATE,
+        lcmocc = vnflcm_utils.new_lcmocc(
-                                  body)
+            id, v2fields.LcmOperationType.TERMINATE, body)
         lcmocc.create(context)
 
         self.conductor_rpc.start_lcm_op(context, lcmocc.id)
@@ -270,93 +254,19 @@ class VnfLcmControllerV2(sol_wsgi.SolAPIController):
 
         return sol_wsgi.SolResponse(202, None, location=location)
 
-    def _get_current_scale_level(self, inst, aspect_id):
-        if (inst.obj_attr_is_set('instantiatedVnfInfo') and
-                inst.instantiatedVnfInfo.obj_attr_is_set('scaleStatus')):
-            for scale_info in inst.instantiatedVnfInfo.scaleStatus:
-                if scale_info.aspectId == aspect_id:
-                    return scale_info.scaleLevel
-
-    def _get_max_scale_level(self, inst, aspect_id):
-        if (inst.obj_attr_is_set('instantiatedVnfInfo') and
-                inst.instantiatedVnfInfo.obj_attr_is_set('maxScaleLevels')):
-            for scale_info in inst.instantiatedVnfInfo.maxScaleLevels:
-                if scale_info.aspectId == aspect_id:
-                    return scale_info.scaleLevel
-
     @validator.schema(schema.ScaleVnfRequest_V200, '2.0.0')
-    @coordinate.lock_vnf_instance('{id}')
     def scale(self, request, id, body):
         context = request.context
-        inst = inst_utils.get_inst(context, id)
+        lcmocc = vnflcm_utils.scale(context, id, body)
-
-        if inst.instantiationState != 'INSTANTIATED':
-            raise sol_ex.VnfInstanceIsNotInstantiated(inst_id=id)
-
-        lcmocc_utils.check_lcmocc_in_progress(context, id)
-
-        # check parameters
-        aspect_id = body['aspectId']
-        if 'numberOfSteps' not in body:
-            # set default value (1) defined by SOL specification for
-            # the convenience of the following methods.
-            body['numberOfSteps'] = 1
-
-        scale_level = self._get_current_scale_level(inst, aspect_id)
-        max_scale_level = self._get_max_scale_level(inst, aspect_id)
-        if scale_level is None or max_scale_level is None:
-            raise sol_ex.InvalidScaleAspectId(aspect_id=aspect_id)
-
-        num_steps = body['numberOfSteps']
-        if body['type'] == 'SCALE_IN':
-            num_steps *= -1
-        scale_level += num_steps
-        if scale_level < 0 or scale_level > max_scale_level:
-            raise sol_ex.InvalidScaleNumberOfSteps(
-                num_steps=body['numberOfSteps'])
-
-        lcmocc = self._new_lcmocc(id, v2fields.LcmOperationType.SCALE,
-                                  body)
-        lcmocc.create(context)
-
-        self.conductor_rpc.start_lcm_op(context, lcmocc.id)
 
         location = lcmocc_utils.lcmocc_href(lcmocc.id, self.endpoint)
 
         return sol_wsgi.SolResponse(202, None, location=location)
 
     @validator.schema(schema.HealVnfRequest_V200, '2.0.0')
-    @coordinate.lock_vnf_instance('{id}')
     def heal(self, request, id, body):
         context = request.context
-        inst = inst_utils.get_inst(context, id)
+        lcmocc = vnflcm_utils.heal(context, id, body)
-
-        if inst.instantiationState != 'INSTANTIATED':
-            raise sol_ex.VnfInstanceIsNotInstantiated(inst_id=id)
-
-        lcmocc_utils.check_lcmocc_in_progress(context, id)
-
-        # check parameter for later use
-        is_all = body.get('additionalParams', {}).get('all', False)
-        if not isinstance(is_all, bool):
-            raise sol_ex.SolValidationError(
-                detail="additionalParams['all'] must be bool.")
-
-        if 'vnfcInstanceId' in body:
-            inst_info = inst.instantiatedVnfInfo
-            vnfc_id = []
-            if inst_info.obj_attr_is_set('vnfcInfo'):
-                vnfc_id = [vnfc.id for vnfc in inst_info.vnfcInfo]
-            for req_vnfc_id in body['vnfcInstanceId']:
-                if req_vnfc_id not in vnfc_id:
-                    raise sol_ex.SolValidationError(
-                        detail="vnfcInstanceId(%s) does not exist."
-                        % req_vnfc_id)
-
-        lcmocc = self._new_lcmocc(id, v2fields.LcmOperationType.HEAL, body)
-        lcmocc.create(context)
-
-        self.conductor_rpc.start_lcm_op(context, lcmocc.id)
 
         location = lcmocc_utils.lcmocc_href(lcmocc.id, self.endpoint)
 
@@ -373,7 +283,7 @@ class VnfLcmControllerV2(sol_wsgi.SolAPIController):
 
         lcmocc_utils.check_lcmocc_in_progress(context, id)
 
-        lcmocc = self._new_lcmocc(
+        lcmocc = vnflcm_utils.new_lcmocc(
             id, v2fields.LcmOperationType.CHANGE_EXT_CONN, body)
         lcmocc.create(context)
 
@@ -458,8 +368,8 @@ class VnfLcmControllerV2(sol_wsgi.SolAPIController):
             raise sol_ex.SolValidationError(
                 detail="'lcm-kubernetes-def-files' must be specified")
 
-        lcmocc = self._new_lcmocc(id, v2fields.LcmOperationType.CHANGE_VNFPKG,
+        lcmocc = vnflcm_utils.new_lcmocc(
-                                  body)
+            id, v2fields.LcmOperationType.CHANGE_VNFPKG, body)
 
         lcmocc.create(context)
 

tacker/tests/functional/sol_kubernetes_v2/base_v2.py

@@ -288,6 +288,13 @@ class BaseVnfLcmKubernetesV2Test(base.BaseTestCase):
         return self.tacker_client.do_request(
             path, "GET", version="2.0.0")
 
+    def list_lcmocc(self, filter_expr=None):
+        path = "/vnflcm/v2/vnf_lcm_op_occs"
+        if filter_expr:
+            path = "{}?{}".format(path, urllib.parse.urlencode(filter_expr))
+        return self.tacker_client.do_request(
+            path, "GET", version="2.0.0")
+
     def create_subscription(self, req_body):
         path = "/vnffm/v1/subscriptions"
         return self.tacker_client.do_request(
@@ -370,7 +377,12 @@ class BaseVnfLcmKubernetesV2Test(base.BaseTestCase):
             path, "DELETE", version="2.1.0")
 
     def prometheus_auto_scaling_alert(self, req_body):
-        path = "/alert/vnf_instances"
+        path = "/alert/auto_scaling"
+        return self.tacker_client.do_request(
+            path, "POST", body=req_body)
+
+    def prometheus_auto_healing_alert(self, req_body):
+        path = "/alert/auto_healing"
         return self.tacker_client.do_request(
             path, "POST", body=req_body)
 

tacker/tests/functional/sol_kubernetes_v2/paramgen.py

@@ -739,3 +739,38 @@ def prometheus_auto_scaling_alert(inst_id):
         "groupKey": "{}:{}",
         "truncatedAlerts": 0
     }
+
+
+def prometheus_auto_healing_alert(inst_id, vnfc_info_id):
+    return {
+        "receiver": "receiver",
+        "status": "firing",
+        "alerts": [{
+            "status": "firing",
+            "labels": {
+                "receiver_type": "tacker",
+                "function_type": "auto_heal",
+                "vnf_instance_id": inst_id,
+                "vnfc_info_id": vnfc_info_id
+            },
+            "annotations": {
+            },
+            "startsAt": "2022-06-21T23:47:36.453Z",
+            "endsAt": "0001-01-01T00:00:00Z",
+            "generatorURL": "http://controller147:9090/graph?g0.expr="
+                            "up%7Bjob%3D%22node%22%7D+%3D%3D+0&g0.tab=1",
+            "fingerprint": "5ef77f1f8a3ecb8d"
+        }],
+        "groupLabels": {},
+        "commonLabels": {
+            "alertname": "NodeInstanceDown",
+            "job": "node"
+        },
+        "commonAnnotations": {
+            "description": "sample"
+        },
+        "externalURL": "http://controller147:9093",
+        "version": "4",
+        "groupKey": "{}:{}",
+        "truncatedAlerts": 0
+    }

tacker/tests/functional/sol_kubernetes_v2/test_prom_auto_scale_heal.py

@@ -0,0 +1,355 @@
+# Copyright (C) 2023 Fujitsu
+# All Rights Reserved.
+#
+#    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.
+
+import ddt
+import os
+import time
+
+from tacker.tests.functional.sol_kubernetes_v2 import base_v2
+from tacker.tests.functional.sol_kubernetes_v2 import paramgen
+
+# Waiting time to trigger autoheal (unit: second)
+WAIT_AUTO_HEAL_TIME = 23
+
+# Waiting time to lcmocc update in DB (unit: second)
+WAIT_LCMOCC_UPDATE_TIME = 3
+
+
+@ddt.ddt
+class PromAutoScaleHealTest(base_v2.BaseVnfLcmKubernetesV2Test):
+
+    @classmethod
+    def setUpClass(cls):
+        super(PromAutoScaleHealTest, cls).setUpClass()
+
+        cur_dir = os.path.dirname(__file__)
+
+        test_instantiate_cnf_resources_path = os.path.join(
+            cur_dir, "samples/test_instantiate_cnf_resources")
+        cls.vnf_pkg_1, cls.vnfd_id_1 = cls.create_vnf_package(
+            test_instantiate_cnf_resources_path)
+
+    @classmethod
+    def tearDownClass(cls):
+        super(PromAutoScaleHealTest, cls).tearDownClass()
+
+        cls.delete_vnf_package(cls.vnf_pkg_1)
+
+    def setUp(self):
+        super(PromAutoScaleHealTest, self).setUp()
+
+    def test_vnfm_auto_heal_cnf(self):
+        """Test Prometheus VNFM Auto Healing operations
+
+        * About LCM operations:
+          This test includes the following operations.
+          - 1. Create a new VNF instance resource
+          - 2. Instantiate a VNF instance
+          - 3. Show OpOcc
+          - 4-5. Receive Alert and Auto Heal
+          - 6. Show OpOcc
+          - 7. Receive Alert
+          - 8-9. Receive Alert and Auto Heal
+          - 10. Show OpOcc
+          - 11. Terminate a VNF instance
+          - 12. Show OpOcc
+          - 13. Delete a VNF instance
+        """
+
+        # 1. LCM-Create: Create a new VNF instance resource
+        create_req = paramgen.instantiate_cnf_resources_create(self.vnfd_id_1)
+        resp, body = self.create_vnf_instance(create_req)
+        self.assertEqual(201, resp.status_code)
+        inst_id = body['id']
+
+        # 2. LCM-Instantiate: Instantiate a VNF instance
+        vim_id = self.get_k8s_vim_id()
+        instantiate_req = paramgen.min_sample_instantiate(vim_id)
+        instantiate_req['additionalParams'][
+            'lcm-kubernetes-def-files'] = ['Files/kubernetes/deployment.yaml']
+        instantiate_req['vnfConfigurableProperties'] = {
+            'isAutohealEnabled': True}
+        resp, body = self.instantiate_vnf_instance(inst_id, instantiate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # 3. LCM-Show-OpOccV2: Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('INSTANTIATE', body['operation'])
+
+        # 4-5. Send alert and auto heal
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        vnfc_info_id = (affected_vnfcs[0]['vduId'] + '-'
+                        + affected_vnfcs[0]['id'])
+        alert = paramgen.prometheus_auto_healing_alert(inst_id, vnfc_info_id)
+        resp, body = self.prometheus_auto_healing_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # Since auto heal takes 20 seconds to trigger,
+        # wait 23 seconds here.
+        time.sleep(WAIT_AUTO_HEAL_TIME)
+
+        # 6. LCM-Show-OpOccV2: Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        heal_lcmocc = [
+            heal_lcmocc for heal_lcmocc in body
+            if heal_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = heal_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('HEAL', body['operation'])
+        self.assertEqual(2, len(affected_vnfcs))
+
+        added_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'ADDED']
+        self.assertEqual(1, len(added_vnfcs))
+
+        removed_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'REMOVED']
+        self.assertEqual(1, len(removed_vnfcs))
+
+        removed_vnfc_info_id = (affected_vnfcs[0]['vduId'] + '-'
+                                + affected_vnfcs[0]['id'])
+        self.assertEqual(vnfc_info_id, removed_vnfc_info_id)
+
+        # 7. Send alert
+        resp, body = self.show_vnf_instance(inst_id)
+        self.assertEqual(200, resp.status_code)
+
+        vnfc_infos = body['instantiatedVnfInfo']['vnfcInfo']
+        vnfc_info_id_1 = vnfc_infos[0]['id']
+        alert = paramgen.prometheus_auto_healing_alert(
+            inst_id, vnfc_info_id_1)
+        resp, body = self.prometheus_auto_healing_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # 8-9. Send alert and auto heal
+        vnfc_info_id_2 = vnfc_infos[1]['id']
+        alert = paramgen.prometheus_auto_healing_alert(
+            inst_id, vnfc_info_id_2)
+        resp, body = self.prometheus_auto_healing_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # Since auto heal takes 20 seconds to trigger,
+        # wait 23 seconds here.
+        time.sleep(WAIT_AUTO_HEAL_TIME)
+
+        # 10. LCM-Show-OpOccV2: Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        heal_lcmocc = [
+            heal_lcmocc for heal_lcmocc in body
+            if heal_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = heal_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('HEAL', body['operation'])
+        self.assertEqual(4, len(affected_vnfcs))
+
+        added_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'ADDED']
+        self.assertEqual(2, len(added_vnfcs))
+
+        removed_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'REMOVED']
+        self.assertEqual(2, len(removed_vnfcs))
+
+        removed_vnfc_info_ids = [
+            removed_vnfcs[0]['vduId'] + '-' + removed_vnfcs[0]['id'],
+            removed_vnfcs[1]['vduId'] + '-' + removed_vnfcs[1]['id']
+        ]
+        self.assertCountEqual(
+            [vnfc_info_id_1, vnfc_info_id_2], removed_vnfc_info_ids)
+
+        # 11. LCM-Terminate: Terminate VNF
+        terminate_req = paramgen.terminate_vnf_min()
+        resp, body = self.terminate_vnf_instance(inst_id, terminate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and terminate completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 12. LCM-Show-OpOccV2: Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('TERMINATE', body['operation'])
+
+        # 13. LCM-Delete: Delete a VNF instance
+        resp, body = self.delete_vnf_instance(inst_id)
+        self.assertEqual(204, resp.status_code)
+
+        # check deletion of VNF instance
+        resp, body = self.show_vnf_instance(inst_id)
+        self.assertEqual(404, resp.status_code)
+
+    def test_vnfm_auto_scale_cnf(self):
+        """Test Prometheus VNFM Auto Scaling operations
+
+        * About LCM operations:
+          This test includes the following operations.
+          - 1. Create a new VNF instance resource
+          - 2. Instantiate a VNF instance
+          - 3. Show OpOcc
+          - 4-5. Receive Alert and Auto Scale out
+          - 6. Show OpOcc
+          - 7-8. Receive Alert and Auto Scale in
+          - 9. Show OpOcc
+          - 10. Terminate a VNF instance
+          - 11. Show OpOcc
+          - 12. Delete a VNF instance
+        """
+
+        # 1. LCM-Create: Create a new VNF instance resource
+        create_req = paramgen.instantiate_cnf_resources_create(self.vnfd_id_1)
+        resp, body = self.create_vnf_instance(create_req)
+        self.assertEqual(201, resp.status_code)
+        inst_id = body['id']
+
+        # 2. LCM-Instantiate: Instantiate a VNF instance
+        vim_id = self.get_k8s_vim_id()
+        instantiate_req = paramgen.min_sample_instantiate(vim_id)
+        instantiate_req['additionalParams'][
+            'lcm-kubernetes-def-files'] = ['Files/kubernetes/deployment.yaml']
+        instantiate_req['vnfConfigurableProperties'] = {
+            'isAutoscaleEnabled': True}
+        resp, body = self.instantiate_vnf_instance(inst_id, instantiate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # 3. LCM-Show-OpOccV2: Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('INSTANTIATE', body['operation'])
+
+        # 4-5. Send alert and auto-scale out
+        alert = paramgen.prometheus_auto_scaling_alert(inst_id)
+        resp, body = self.prometheus_auto_scaling_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and scale completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 6. LCM-Show-OpOccV2: Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        scale_lcmocc = [
+            scale_lcmocc for scale_lcmocc in body
+            if scale_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = scale_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('SCALE', body['operation'])
+        self.assertEqual(1, len(affected_vnfcs))
+        self.assertEqual('ADDED', affected_vnfcs[0]['changeType'])
+        self.assertEqual(
+            alert['alerts'][0]['labels']['aspect_id'],
+            body['operationParams']['aspectId'])
+
+        # 7-8. Send alert and auto-scale in
+        alert['alerts'][0]['labels']['auto_scale_type'] = 'SCALE_IN'
+        resp, body = self.prometheus_auto_scaling_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and scale completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 9. LCM-Show-OpOccV2: Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        scale_lcmocc = [
+            scale_lcmocc for scale_lcmocc in body
+            if scale_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = scale_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('SCALE', body['operation'])
+        self.assertEqual(1, len(affected_vnfcs))
+        self.assertEqual('REMOVED', affected_vnfcs[0]['changeType'])
+        self.assertEqual(
+            alert['alerts'][0]['labels']['aspect_id'],
+            body['operationParams']['aspectId'])
+
+        # 10. LCM-Terminate: Terminate VNF
+        terminate_req = paramgen.terminate_vnf_min()
+        resp, body = self.terminate_vnf_instance(inst_id, terminate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and terminate completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 11. LCM-Show-OpOccV2: Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('TERMINATE', body['operation'])
+
+        # 12. LCM-Delete: Delete a VNF instance
+        resp, body = self.delete_vnf_instance(inst_id)
+        self.assertEqual(204, resp.status_code)
+
+        # check deletion of VNF instance
+        resp, body = self.show_vnf_instance(inst_id)
+        self.assertEqual(404, resp.status_code)

tacker/tests/functional/sol_kubernetes_v2/test_prometheus_auto_scaling.py

@@ -1,115 +0,0 @@
-# Copyright (C) 2022 Fujitsu
-# All Rights Reserved.
-#
-#    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.
-import ddt
-import os
-import time
-
-from tacker.objects import fields
-from tacker.tests.functional.sol_kubernetes_v2 import base_v2
-from tacker.tests.functional.sol_kubernetes_v2 import paramgen
-
-
-@ddt.ddt
-class PrometheusAutoScalingTest(base_v2.BaseVnfLcmKubernetesV2Test):
-
-    @classmethod
-    def setUpClass(cls):
-        super(PrometheusAutoScalingTest, cls).setUpClass()
-
-        cur_dir = os.path.dirname(__file__)
-
-        test_instantiate_cnf_resources_path = os.path.join(
-            cur_dir, "samples/test_instantiate_cnf_resources")
-        cls.vnf_pkg_1, cls.vnfd_id_1 = cls.create_vnf_package(
-            test_instantiate_cnf_resources_path)
-
-    @classmethod
-    def tearDownClass(cls):
-        super(PrometheusAutoScalingTest, cls).tearDownClass()
-
-        cls.delete_vnf_package(cls.vnf_pkg_1)
-
-    def setUp(self):
-        super(PrometheusAutoScalingTest, self).setUp()
-
-    def test_prometheus_auto_scaling_basic(self):
-        """Test Prometheus Auto Scaling operations with all attributes set
-
-        * About LCM operations:
-          This test includes the following operations.
-          - 1. Create a new VNF instance resource
-          - 2. Instantiate a VNF instance
-          - 3. Prometheus Auto Scaling alert.
-          - 4. Terminate a VNF instance
-          - 5. Delete a VNF instance
-        """
-
-        # 1. LCM-Create: Create a new VNF instance resource
-        # NOTE: extensions and vnfConfigurableProperties are omitted
-        # because they are commented out in etsi_nfv_sol001.
-        create_req = paramgen.instantiate_cnf_resources_create(self.vnfd_id_1)
-        resp, body = self.create_vnf_instance(create_req)
-        self.assertEqual(201, resp.status_code)
-        inst_id = body['id']
-
-        # 2. LCM-Instantiate: Instantiate a VNF instance
-        vim_id = self.get_k8s_vim_id()
-        instantiate_req = paramgen.min_sample_instantiate(vim_id)
-        instantiate_req['additionalParams'][
-            'lcm-kubernetes-def-files'] = ['Files/kubernetes/deployment.yaml']
-        instantiate_req['vnfConfigurableProperties'] = {
-            'isAutoscaleEnabled': True}
-        resp, body = self.instantiate_vnf_instance(inst_id, instantiate_req)
-        self.assertEqual(202, resp.status_code)
-
-        lcmocc_id = os.path.basename(resp.headers['Location'])
-        self.wait_lcmocc_complete(lcmocc_id)
-
-        resp, body = self.show_vnf_instance(inst_id)
-        self.assertEqual(200, resp.status_code)
-
-        # 3. Send Auto-Healing alert
-        alert = paramgen.prometheus_auto_scaling_alert(inst_id)
-        # CNF scale is not integrated yet. use this value for now.
-        alert['alerts'][0]['labels']['aspect_id'] = 'invalid_id'
-        resp, body = self.prometheus_auto_scaling_alert(alert)
-        self.assertEqual(204, resp.status_code)
-        time.sleep(5)
-
-        # 4. LCM-Terminate: Terminate VNF
-        terminate_req = paramgen.terminate_vnf_min()
-        resp, body = self.terminate_vnf_instance(inst_id, terminate_req)
-        self.assertEqual(202, resp.status_code)
-
-        lcmocc_id = os.path.basename(resp.headers['Location'])
-        self.wait_lcmocc_complete(lcmocc_id)
-
-        # wait a bit because there is a bit time lag between lcmocc DB
-        # update and terminate completion.
-        time.sleep(10)
-
-        # check instantiationState of VNF
-        resp, body = self.show_vnf_instance(inst_id)
-        self.assertEqual(200, resp.status_code)
-        self.assertEqual(fields.VnfInstanceState.NOT_INSTANTIATED,
-                         body['instantiationState'])
-
-        # 5. LCM-Delete: Delete a VNF instance
-        resp, body = self.delete_vnf_instance(inst_id)
-        self.assertEqual(204, resp.status_code)
-
-        # check deletion of VNF instance
-        resp, body = self.show_vnf_instance(inst_id)
-        self.assertEqual(404, resp.status_code)

tacker/tests/functional/sol_v2/test_prom_auto_scale_heal.py

@@ -0,0 +1,361 @@
+# Copyright (C) 2023 Fujitsu
+# All Rights Reserved.
+#
+#    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.
+
+import ddt
+import os
+import time
+
+from tacker.tests.functional.sol_v2_common import paramgen
+from tacker.tests.functional.sol_v2_common import test_vnflcm_basic_common
+
+# Waiting time to trigger autoheal (unit: second)
+WAIT_AUTO_HEAL_TIME = 23
+
+# Waiting time to lcmocc update in DB (unit: second)
+WAIT_LCMOCC_UPDATE_TIME = 3
+
+
+@ddt.ddt
+class PromAutoScaleHealTest(test_vnflcm_basic_common.CommonVnfLcmTest):
+
+    @classmethod
+    def setUpClass(cls):
+        super(PromAutoScaleHealTest, cls).setUpClass()
+        cur_dir = os.path.dirname(__file__)
+
+        # for basic lcms tests min pattern
+        basic_lcms_min_path = os.path.join(
+            cur_dir, "../sol_v2_common/samples/basic_lcms_min")
+        # no image contained
+        cls.vnf_pkg_2, cls.vnfd_id_2 = cls.create_vnf_package(
+            basic_lcms_min_path)
+
+    @classmethod
+    def tearDownClass(cls):
+        super(PromAutoScaleHealTest, cls).tearDownClass()
+        cls.delete_vnf_package(cls.vnf_pkg_2)
+
+    def setUp(self):
+        super(PromAutoScaleHealTest, self).setUp()
+
+    def test_vnfm_auto_heal_vnf(self):
+        """Test Prometheus VNFM Auto Healing operations
+
+        * About LCM operations:
+          This test includes the following operations.
+          - 1. Create a new VNF instance resource
+          - 2. Instantiate a VNF instance
+          - 3. Show OpOcc
+          - 4-5. Receive Alert and Auto Heal
+          - 6. Show OpOcc
+          - 7. Receive Alert
+          - 8-9. Receive Alert and Auto Heal
+          - 10. Show OpOcc
+          - 11. Terminate a VNF instance
+          - 12. Show OpOcc
+          - 13. Delete a VNF instance
+        """
+
+        # 1. Create VNF instance
+        expected_inst_attrs = [
+            'id', 'vnfdId', 'vnfProductName', 'vnfSoftwareVersion',
+            'vnfdVersion', 'instantiationState', '_links'
+        ]
+        create_req = paramgen.create_vnf_min(self.vnfd_id_2)
+        resp, body = self.create_vnf_instance(create_req)
+        self.assertEqual(201, resp.status_code)
+        self.check_resp_headers_in_create(resp)
+        self.check_resp_body(body, expected_inst_attrs)
+        inst_id = body['id']
+
+        # 2. Instantiate VNF
+        instantiate_req = paramgen.instantiate_vnf_min()
+        instantiate_req['vnfConfigurableProperties'] = {
+            'isAutohealEnabled': True}
+        resp, body = self.instantiate_vnf_instance(inst_id, instantiate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # 3. Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('INSTANTIATE', body['operation'])
+
+        # 4-5. Send alert and auto heal
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        vnfc_info_id = (affected_vnfcs[0]['vduId'] + '-'
+                        + affected_vnfcs[0]['id'])
+        alert = paramgen.prometheus_auto_healing_alert(inst_id, vnfc_info_id)
+        resp, body = self.prometheus_auto_healing_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # Since auto heal takes 20 seconds to trigger,
+        # wait 23 seconds here.
+        time.sleep(WAIT_AUTO_HEAL_TIME)
+
+        # 6. Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        heal_lcmocc = [
+            heal_lcmocc for heal_lcmocc in body
+            if heal_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = heal_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('HEAL', body['operation'])
+        self.assertEqual(2, len(affected_vnfcs))
+
+        added_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'ADDED']
+        self.assertEqual(1, len(added_vnfcs))
+
+        removed_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'REMOVED']
+        self.assertEqual(1, len(removed_vnfcs))
+
+        removed_vnfc_info_id = (affected_vnfcs[0]['vduId'] + '-'
+                                + affected_vnfcs[0]['id'])
+        self.assertEqual(vnfc_info_id, removed_vnfc_info_id)
+
+        # 7. Send alert
+        resp, body = self.show_vnf_instance(inst_id)
+        self.assertEqual(200, resp.status_code)
+
+        vnfc_infos = body['instantiatedVnfInfo']['vnfcInfo']
+        vnfc_info_id_1 = vnfc_infos[0]['id']
+        alert = paramgen.prometheus_auto_healing_alert(
+            inst_id, vnfc_info_id_1)
+        resp, body = self.prometheus_auto_healing_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # 8-9. Send alert and auto heal
+        vnfc_info_id_2 = vnfc_infos[1]['id']
+        alert = paramgen.prometheus_auto_healing_alert(
+            inst_id, vnfc_info_id_2)
+        resp, body = self.prometheus_auto_healing_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # Since auto heal takes 20 seconds to trigger,
+        # wait 23 seconds here.
+        time.sleep(WAIT_AUTO_HEAL_TIME)
+
+        # 10. Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        heal_lcmocc = [
+            heal_lcmocc for heal_lcmocc in body
+            if heal_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = heal_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('HEAL', body['operation'])
+        self.assertEqual(4, len(affected_vnfcs))
+
+        added_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'ADDED']
+        self.assertEqual(2, len(added_vnfcs))
+
+        removed_vnfcs = [
+            vnfc for vnfc in affected_vnfcs
+            if vnfc['changeType'] == 'REMOVED']
+        self.assertEqual(2, len(removed_vnfcs))
+
+        removed_vnfc_info_ids = [
+            removed_vnfcs[0]['vduId'] + '-' + removed_vnfcs[0]['id'],
+            removed_vnfcs[1]['vduId'] + '-' + removed_vnfcs[1]['id']
+        ]
+        self.assertCountEqual(
+            [vnfc_info_id_1, vnfc_info_id_2], removed_vnfc_info_ids)
+
+        # 11. Terminate a VNF instance
+        terminate_req = paramgen.terminate_vnf_min()
+        resp, body = self.terminate_vnf_instance(inst_id, terminate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and terminate completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 12. Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('TERMINATE', body['operation'])
+
+        # 13. Delete a VNF instance
+        resp, body = self.delete_vnf_instance(inst_id)
+        self.assertEqual(204, resp.status_code)
+
+        # check deletion of VNF instance
+        resp, body = self.show_vnf_instance(inst_id)
+        self.assertEqual(404, resp.status_code)
+
+    def test_vnfm_auto_scale_vnf(self):
+        """Test Prometheus VNFM Auto Scaling operations
+
+        * About LCM operations:
+          This test includes the following operations.
+          - 1. Create a new VNF instance resource
+          - 2. Instantiate a VNF instance
+          - 3. Show OpOcc
+          - 4-5. Receive Alert and Auto Scale out
+          - 6. Show OpOcc
+          - 7-8. Receive Alert and Auto Scale in
+          - 9. Show OpOcc
+          - 10. Terminate a VNF instance
+          - 11. Show OpOcc
+          - 12. Delete a VNF instance
+        """
+
+        # 1. Create VNF instance
+        expected_inst_attrs = [
+            'id', 'vnfdId', 'vnfProductName', 'vnfSoftwareVersion',
+            'vnfdVersion', 'instantiationState', '_links'
+        ]
+        create_req = paramgen.create_vnf_min(self.vnfd_id_2)
+        resp, body = self.create_vnf_instance(create_req)
+        self.assertEqual(201, resp.status_code)
+        self.check_resp_headers_in_create(resp)
+        self.check_resp_body(body, expected_inst_attrs)
+        inst_id = body['id']
+
+        # 2. Instantiate VNF
+        instantiate_req = paramgen.instantiate_vnf_min()
+        instantiate_req['vnfConfigurableProperties'] = {
+            'isAutoscaleEnabled': True}
+        resp, body = self.instantiate_vnf_instance(inst_id, instantiate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # 3. Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('INSTANTIATE', body['operation'])
+
+        # 4-5. Send alert and auto heal
+        alert = paramgen.prometheus_auto_scaling_alert(inst_id)
+        resp, body = self.prometheus_auto_scaling_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and scale completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 6. Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        scale_lcmocc = [
+            scale_lcmocc for scale_lcmocc in body
+            if scale_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = scale_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('SCALE', body['operation'])
+        self.assertEqual(1, len(affected_vnfcs))
+        self.assertEqual('ADDED', affected_vnfcs[0]['changeType'])
+        self.assertEqual(
+            alert['alerts'][0]['labels']['aspect_id'],
+            body['operationParams']['aspectId'])
+
+        # 7-8. Send alert and auto-scale in
+        alert['alerts'][0]['labels']['auto_scale_type'] = 'SCALE_IN'
+        resp, body = self.prometheus_auto_scaling_alert(alert)
+        self.assertEqual(204, resp.status_code)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and scale completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 9. Show-OpOcc
+        filter_expr = {'filter': f'(eq,vnfInstanceId,{inst_id})'}
+        resp, body = self.list_lcmocc(filter_expr)
+        self.assertEqual(200, resp.status_code)
+
+        scale_lcmocc = [
+            scale_lcmocc for scale_lcmocc in body
+            if scale_lcmocc['startTime'] == max(
+                [lcmocc['startTime'] for lcmocc in body])][0]
+        lcmocc_id = scale_lcmocc['id']
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        resp, body = self.show_lcmocc(lcmocc_id)
+        affected_vnfcs = body['resourceChanges']['affectedVnfcs']
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('SCALE', body['operation'])
+        self.assertEqual(1, len(affected_vnfcs))
+        self.assertEqual('REMOVED', affected_vnfcs[0]['changeType'])
+        self.assertEqual(
+            alert['alerts'][0]['labels']['aspect_id'],
+            body['operationParams']['aspectId'])
+
+        # 10. Terminate a VNF instance
+        terminate_req = paramgen.terminate_vnf_min()
+        resp, body = self.terminate_vnf_instance(inst_id, terminate_req)
+        self.assertEqual(202, resp.status_code)
+
+        lcmocc_id = os.path.basename(resp.headers['Location'])
+        self.wait_lcmocc_complete(lcmocc_id)
+
+        # wait a bit because there is a bit time lag between lcmocc DB
+        # update and terminate completion.
+        time.sleep(WAIT_LCMOCC_UPDATE_TIME)
+
+        # 11. Show OpOcc
+        resp, body = self.show_lcmocc(lcmocc_id)
+        self.assertEqual(200, resp.status_code)
+        self.assertEqual('COMPLETED', body['operationState'])
+        self.assertEqual('TERMINATE', body['operation'])
+
+        # 12. Delete a VNF instance
+        resp, body = self.delete_vnf_instance(inst_id)
+        self.assertEqual(204, resp.status_code)
+
+        # check deletion of VNF instance
+        resp, body = self.show_vnf_instance(inst_id)
+        self.assertEqual(404, resp.status_code)

tacker/tests/functional/sol_v2_common/base_v2.py

@@ -495,6 +495,16 @@ class BaseSolV2Test(base.BaseTestCase):
         return self.tacker_client.do_request(
             path, "POST", version="2.0.0")
 
+    def prometheus_auto_healing_alert(self, req_body):
+        path = "/alert/auto_healing"
+        return self.tacker_client.do_request(
+            path, "POST", body=req_body)
+
+    def prometheus_auto_scaling_alert(self, req_body):
+        path = "/alert/auto_scaling"
+        return self.tacker_client.do_request(
+            path, "POST", body=req_body)
+
     def create_subscription(self, req_body):
         path = "/vnflcm/v2/subscriptions"
         return self.tacker_client.do_request(

tacker/tests/functional/sol_v2_common/paramgen.py

@@ -1198,6 +1198,77 @@ def sample4_terminate():
     }
 
 
+def prometheus_auto_healing_alert(inst_id, vnfc_info_id):
+    return {
+        "receiver": "receiver",
+        "status": "firing",
+        "alerts": [{
+            "status": "firing",
+            "labels": {
+                "receiver_type": "tacker",
+                "function_type": "auto_heal",
+                "vnf_instance_id": inst_id,
+                "vnfc_info_id": vnfc_info_id
+            },
+            "annotations": {
+            },
+            "startsAt": "2022-06-21T23:47:36.453Z",
+            "endsAt": "0001-01-01T00:00:00Z",
+            "generatorURL": "http://controller147:9090/graph?g0.expr="
+                            "up%7Bjob%3D%22node%22%7D+%3D%3D+0&g0.tab=1",
+            "fingerprint": "5ef77f1f8a3ecb8d"
+        }],
+        "groupLabels": {},
+        "commonLabels": {
+            "alertname": "NodeInstanceDown",
+            "job": "node"
+        },
+        "commonAnnotations": {
+            "description": "sample"
+        },
+        "externalURL": "http://controller147:9093",
+        "version": "4",
+        "groupKey": "{}:{}",
+        "truncatedAlerts": 0
+    }
+
+
+def prometheus_auto_scaling_alert(inst_id):
+    return {
+        "receiver": "receiver",
+        "status": "firing",
+        "alerts": [{
+            "status": "firing",
+            "labels": {
+                "receiver_type": "tacker",
+                "function_type": "auto_scale",
+                "vnf_instance_id": inst_id,
+                "auto_scale_type": "SCALE_OUT",
+                "aspect_id": "VDU1_scale"
+            },
+            "annotations": {
+            },
+            "startsAt": "2022-06-21T23:47:36.453Z",
+            "endsAt": "0001-01-01T00:00:00Z",
+            "generatorURL": "http://controller147:9090/graph?g0.expr="
+                            "up%7Bjob%3D%22node%22%7D+%3D%3D+0&g0.tab=1",
+            "fingerprint": "5ef77f1f8a3ecb8d"
+        }],
+        "groupLabels": {},
+        "commonLabels": {
+            "alertname": "NodeInstanceDown",
+            "job": "node"
+        },
+        "commonAnnotations": {
+            "description": "sample"
+        },
+        "externalURL": "http://controller147:9093",
+        "version": "4",
+        "groupKey": "{}:{}",
+        "truncatedAlerts": 0
+    }
+
+
 def server_notification(alarm_id):
     return {
         'notification': {

tacker/tests/unit/sol_refactored/common/test_prometheus_plugin.py

@@ -707,6 +707,40 @@ class TestPrometheusPluginFm(base.TestCase):
             pp._alert, self.request)
 
 
+class TestPrometheusPluginAutoHealing(base.TestCase):
+    def setUp(self):
+        super(TestPrometheusPluginAutoHealing, self).setUp()
+        objects.register_all()
+        self.context = context.get_admin_context()
+        self.request = mock.Mock()
+        self.request.context = self.context
+        prometheus_plugin.PrometheusPluginAutoHealing._instance = None
+
+    def tearDown(self):
+        super(TestPrometheusPluginAutoHealing, self).tearDown()
+        # delete singleton object
+        prometheus_plugin.PrometheusPluginAutoHealing._instance = None
+
+    def test_constructor_error(self):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=False)
+        mon_base.MonitoringPlugin.get_instance(
+            prometheus_plugin.PrometheusPluginAutoHealing)
+        self.assertRaises(
+            SystemError,
+            prometheus_plugin.PrometheusPluginAutoHealing)
+
+    def test_constructor_stub(self):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=False)
+        pp = mon_base.MonitoringPlugin.get_instance(
+            prometheus_plugin.PrometheusPluginAutoHealing)
+        self.assertIsInstance(pp._instance, mon_base.MonitoringPluginStub)
+        pp = mon_base.MonitoringPlugin.get_instance(
+            prometheus_plugin.PrometheusPluginAutoHealing)
+        self.assertIsInstance(pp._instance, mon_base.MonitoringPluginStub)
+
+
 class TestPrometheusPluginAutoScaling(base.TestCase):
     def setUp(self):
         super(TestPrometheusPluginAutoScaling, self).setUp()

tacker/tests/unit/sol_refactored/conductor/test_prometheus_plugin.py

@@ -13,10 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import webob
+import time
 
 from tacker import context
-from tacker.sol_refactored.common import http_client
+from tacker.sol_refactored.common import vnflcm_utils
 from tacker.sol_refactored.conductor import conductor_v2
 from tacker.sol_refactored.conductor import prometheus_plugin_driver as pp_drv
 from tacker.sol_refactored import objects
@@ -119,6 +119,7 @@ class TestPrometheusPlugin(db_base.SqlTestCase):
         self.context = context.get_admin_context()
         self.request = mock.Mock()
         self.request.context = self.context
+        self.timer_test = (None, None)
         self.config_fixture.config(
             group='prometheus_plugin', performance_management=True)
         self.conductor = conductor_v2.ConductorV2()
@@ -129,16 +130,13 @@ class TestPrometheusPlugin(db_base.SqlTestCase):
         # delete singleton object
         pp_drv.PrometheusPluginDriver._instance = None
 
-    @mock.patch.object(http_client.HttpClient, 'do_request')
+    @mock.patch.object(vnflcm_utils, 'scale')
-    def test_request_scale(self, mock_do_request):
+    def test_trigger_scale(self, mock_do_scale):
-        resp = webob.Response()
-        resp.status_code = 202
-        mock_do_request.return_value = resp, {}
         scale_req = {
             'type': 'SCALE_OUT',
-            'aspect_id': 'vdu',
+            'aspectId': 'vdu',
         }
-        self.conductor.request_scale(
+        self.conductor.trigger_scale(
             self.context, 'vnf_instance_id', scale_req)
 
     def test_constructor(self):
@@ -150,8 +148,7 @@ class TestPrometheusPlugin(db_base.SqlTestCase):
             group='prometheus_plugin', performance_management=False)
         pp_drv.PrometheusPluginDriver._instance = None
         drv = pp_drv.PrometheusPluginDriver.instance()
-        drv = pp_drv.PrometheusPluginDriver.instance()
+        drv.trigger_scale(None, None, None)
-        drv.request_scale(None, None, None)
         self.config_fixture.config(
             group='prometheus_plugin', performance_management=True)
         drv = pp_drv.PrometheusPluginDriver.instance()
@@ -163,3 +160,73 @@ class TestPrometheusPlugin(db_base.SqlTestCase):
         self.assertRaises(
             SystemError,
             pp_drv.PrometheusPluginDriver)
+
+    def test_conductor_vnfm_auto_heal_queue(self):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=True)
+        pp_drv.PrometheusPluginDriver._instance = None
+        self.conductor.prom_driver = pp_drv.PrometheusPluginDriver.instance()
+        self.config_fixture.config(
+            group='prometheus_plugin', timer_interval=1)
+        # queueing test
+        id = 'test_id'
+        self.conductor.enqueue_auto_heal_instance(
+            self.context, id, 'id')
+        self.conductor.enqueue_auto_heal_instance(
+            self.context, id, 'id2')
+        self.assertEqual(
+            self.conductor.prom_driver.timer_map[id].queue,
+            {'id', 'id2'})
+        # Since the timeout period of `VnfmAutoHealTimer` is set to 1 second,
+        # it is also necessary to wait for 1 second before asserting.
+        time.sleep(1)
+        # remove_timer test
+        self.conductor.dequeue_auto_heal_instance(self.context, id)
+        self.assertNotIn(id, self.conductor.prom_driver.timer_map)
+        # remove_timer test: invalid_id
+        self.conductor.dequeue_auto_heal_instance(
+            self.context, 'invalid_id')
+
+    @mock.patch.object(vnflcm_utils, 'heal')
+    def test_conductor_timer_expired(self, mock_do_heal):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=True)
+        pp_drv.PrometheusPluginDriver._instance = None
+        self.conductor.prom_driver = pp_drv.PrometheusPluginDriver.instance()
+        self.conductor.prom_driver._timer_expired(
+            self.context, 'test_id', ['id'])
+
+    def expired(self, context, id, queue):
+        queue.sort()
+        self.timer_test = (id, queue)
+
+    def test_timer(self):
+        # queueing test
+        timer = pp_drv.VnfmAutoHealTimer(self.context, 'id', 1, self.expired)
+        timer.add_vnfc_info_id('1')
+        timer.add_vnfc_info_id('3')
+        # Since the timeout period of `VnfmAutoHealTimer` is set to 1 second,
+        # it is also necessary to wait for 1 second before asserting.
+        time.sleep(1)
+        self.assertEqual(self.timer_test[0], 'id')
+        self.assertEqual(self.timer_test[1], ['1', '3'])
+
+    def test_timer_cancel(self):
+        # cancel test
+        timer = pp_drv.VnfmAutoHealTimer(self.context, 'id2', 1, self.expired)
+        timer.add_vnfc_info_id('5')
+        timer.cancel()
+        # Since the timeout period of `VnfmAutoHealTimer` is set to 1 second,
+        # it is also necessary to wait for 1 second before asserting.
+        time.sleep(1)
+        self.assertIsNone(self.timer_test[0])
+        self.assertIsNone(self.timer_test[1])
+
+    def test_timer_destructor(self):
+        # method call after cancel()
+        timer = pp_drv.VnfmAutoHealTimer(self.context, 'id', 1, self.expired)
+        timer.cancel()
+        timer.expire()
+        timer.add_vnfc_info_id(['4'])
+        timer.cancel()
+        timer.__del__()

tacker/tests/unit/sol_refactored/controller/test_prometheus_plugin.py

@@ -145,15 +145,65 @@ _body_scale_alert1 = {
     'fingerprint': '5ef77f1f8a3ecb8d'
 }
 
+_body_heal_alert1 = {
+    'status': 'firing',
+    'labels': {
+        'receiver_type': 'tacker',
+        'function_type': 'auto_heal',
+        'vnf_instance_id': 'vnf instance id',
+        'vnfc_info_id': 'vnfc info id'
+    },
+    'annotations': {
+    },
+    'startsAt': '2022-06-21T23:47:36.453Z',
+    'endsAt': '0001-01-01T00:00:00Z',
+    'generatorURL': 'http://controller147:9090/graph?g0.expr='
+                    'up%7Bjob%3D%22node%22%7D+%3D%3D+0&g0.tab=1',
+    'fingerprint': '5ef77f1f8a3ecb8d'
+}
+
 # function_type mismatch
 _body_scale_alert2 = copy.deepcopy(_body_scale_alert1)
 _body_scale_alert2['labels']['function_type'] = 'vnffm'
 
+_body_scale_alert3 = copy.deepcopy(_body_scale_alert1)
+_body_scale_alert3['status'] = 'resolved'
+
+_body_scale_alert4 = copy.deepcopy(_body_scale_alert1)
+_body_scale_alert4['labels']['function_type'] = 'auto_heal'
+
+_body_scale_alert5 = copy.deepcopy(_body_scale_alert1)
+_body_scale_alert5['labels']['aspect_id'] = 'aspect id'
+
 _body_scale = copy.deepcopy(_body_base)
 _body_scale.update({
     'alerts': [_body_scale_alert1, _body_scale_alert2]
 })
 
+_body_scale_continue = copy.deepcopy(_body_base)
+_body_scale_continue.update({
+    'alerts': [_body_scale_alert3, _body_scale_alert4, _body_scale_alert5]
+})
+
+_body_heal = copy.deepcopy(_body_base)
+_body_heal.update({
+    'alerts': [_body_heal_alert1]
+})
+
+_body_heal_alert2 = copy.deepcopy(_body_heal_alert1)
+_body_heal_alert2['status'] = 'resolved'
+
+_body_heal_alert3 = copy.deepcopy(_body_heal_alert1)
+_body_heal_alert3['labels']['function_type'] = 'auto_scale'
+
+_body_heal_alert4 = copy.deepcopy(_body_heal_alert1)
+_body_heal_alert4['labels']['vnfc_info_id'] = 'vnfcInfoId'
+
+_body_heal_continue = copy.deepcopy(_body_base)
+_body_heal_continue.update({
+    'alerts': [_body_heal_alert2, _body_heal_alert3, _body_heal_alert4]
+})
+
 _inst1 = {
     'id': 'test_id',
     'vnfdId': 'vnfdId',
@@ -187,6 +237,14 @@ _inst1 = {
             'vduId': 'vdu_id',
             'vnfcResourceInfoId': 'id2',
             'vnfcState': 'STARTED'
+        }, {
+            'id': 'vnfc info id',
+            'vduId': 'vdu_id',
+            'vnfcResourceInfoId': 'id2',
+            'vnfcState': 'STARTED'
+        }],
+        'scaleStatus': [{
+            'aspectId': 'aspect'
         }]
     },
     'metadata': {
@@ -198,6 +256,31 @@ _inst2.update({
     'vnfConfigurableProperties': {
         'isAutoscaleEnabled': True
     },
+    'instantiationState': 'INSTANTIATED'
+})
+
+_inst3 = copy.deepcopy(_inst1)
+_inst3.update({
+    'vnfConfigurableProperties': {
+        'isAutoscaleEnabled': False
+    },
+    'instantiationState': 'INSTANTIATED'
+})
+
+_inst4 = copy.deepcopy(_inst1)
+_inst4.update({
+    'vnfConfigurableProperties': {
+        'isAutohealEnabled': False
+    },
+    'instantiationState': 'INSTANTIATED'
+})
+
+_inst5 = copy.deepcopy(_inst1)
+_inst5.update({
+    'vnfConfigurableProperties': {
+        'isAutohealEnabled': True
+    },
+    'instantiationState': 'INSTANTIATED'
 })
 
 datetime_test = datetime.datetime.fromisoformat(
@@ -324,6 +407,64 @@ class TestPrometheusPluginFm(base.TestCase):
         self.assertEqual(204, result.status)
 
 
+class TestPrometheusPluginAutoHealing(base.TestCase):
+    def setUp(self):
+        super(TestPrometheusPluginAutoHealing, self).setUp()
+        objects.register_all()
+        self.context = context.get_admin_context()
+        self.request = mock.Mock()
+        self.request.context = self.context
+        self.controller = prometheus_plugin_controller.AutoHealingController()
+        plugin.PrometheusPluginAutoHealing._instance = None
+
+    def tearDown(self):
+        super(TestPrometheusPluginAutoHealing, self).tearDown()
+        # delete singleton object
+        plugin.PrometheusPluginAutoHealing._instance = None
+
+    def test_auto_healing_config_false(self):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=False)
+        self.assertRaises(
+            sol_ex.PrometheusPluginNotEnabled,
+            self.controller.auto_healing, self.request, {})
+
+    @mock.patch.object(inst_utils, 'get_inst')
+    def test_auto_healing_no_autoheal_enabled(self, mock_inst):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=True)
+        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst4)
+        result = self.controller.auto_healing(
+            self.request, _body_heal)
+        self.assertEqual(204, result.status)
+
+    @mock.patch.object(inst_utils, 'get_inst')
+    def test_auto_healing_is_autoheal_enabled(self, mock_inst):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=True)
+        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst5)
+        result = self.controller.auto_healing(self.request, _body_heal)
+        self.assertEqual(204, result.status)
+
+    @mock.patch.object(inst_utils, 'get_inst')
+    def test_auto_healing_multiple_continue(self, mock_inst):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=True)
+        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst5)
+        result = self.controller.auto_healing(
+            self.request, _body_heal_continue)
+        self.assertEqual(204, result.status)
+
+    @mock.patch.object(inst_utils, 'get_inst')
+    def test_auto_healing_not_instantiated(self, mock_inst):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_healing=True)
+        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst1)
+        result = self.controller.auto_healing(
+            self.request, _body_heal)
+        self.assertEqual(204, result.status)
+
+
 class TestPrometheusPluginAutoScaling(base.TestCase):
     def setUp(self):
         super(TestPrometheusPluginAutoScaling, self).setUp()
@@ -344,15 +485,15 @@ class TestPrometheusPluginAutoScaling(base.TestCase):
             group='prometheus_plugin', auto_scaling=False)
         self.assertRaises(
             sol_ex.PrometheusPluginNotEnabled,
-            self.controller.auto_scaling_id, self.request, 'id', {})
+            self.controller.auto_scaling, self.request, {})
 
     @mock.patch.object(inst_utils, 'get_inst')
     def test_auto_scaling_no_autoscale_enabled(self, mock_inst):
         self.config_fixture.config(
             group='prometheus_plugin', auto_scaling=True)
-        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst1)
+        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst3)
-        result = self.controller.auto_scaling_id(
+        result = self.controller.auto_scaling(
-            self.request, 'id', _body_scale)
+            self.request, _body_scale)
         self.assertEqual(204, result.status)
 
     @mock.patch.object(inst_utils, 'get_inst')
@@ -378,3 +519,21 @@ class TestPrometheusPluginAutoScaling(base.TestCase):
             group='prometheus_plugin', auto_scaling=True)
         result = self.controller.auto_scaling(self.request, {})
         self.assertEqual(204, result.status)
+
+    @mock.patch.object(inst_utils, 'get_inst')
+    def test_auto_scaling_multiple_continue(self, mock_inst):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_scaling=True)
+        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst2)
+        result = self.controller.auto_scaling(
+            self.request, _body_scale_continue)
+        self.assertEqual(204, result.status)
+
+    @mock.patch.object(inst_utils, 'get_inst')
+    def test_auto_scaling_not_instantiated(self, mock_inst):
+        self.config_fixture.config(
+            group='prometheus_plugin', auto_scaling=True)
+        mock_inst.return_value = objects.VnfInstanceV2.from_dict(_inst1)
+        result = self.controller.auto_scaling(
+            self.request, _body_scale)
+        self.assertEqual(204, result.status)