[TEST] Added support for multi-vnf macro instantiation

Decoupled service YAML template into a model YAML template and a (SO) service YAML template.
Model YAML template will be used during the onboarding steps and service YAML template will be used to generate payload when sending instantiation request to SO.
Service YAML template reference model name to use for its VNF/VF-Modules using "model_name" field.
This provide more flexibility to design the testcase and enables to setup more complex testcases like instantiating several VNF/VF-MOdules using the same SDC model infos.
This patch aims to provide backward compatibility for existing testcases based on YAML template.

Issue-ID: TEST-358
Signed-off-by: Julien Fontaine <julien.fontaine@bell.ca>
Change-Id: I69d370eff4d383d5af135206476c65e4a56e4ee5

28 files changed, 440 insertions, 20 deletions

diff --git a/src/onaptests/configuration/basic_clamp_settings.py b/src/onaptests/configuration/basic_clamp_settings.py
index 1c6ad61..c26c4e9 100644
--- a/src/onaptests/configuration/basic_clamp_settings.py
+++ b/src/onaptests/configuration/basic_clamp_settings.py
@@ -52,3 +52,5 @@ try:
 except ValueError:
     SERVICE_NAME = "" # Fill me
     VF_NAME = "" # Fill me
+
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/basic_cnf_yaml_settings.py b/src/onaptests/configuration/basic_cnf_yaml_settings.py
index b68b7df..38e551c 100644
--- a/src/onaptests/configuration/basic_cnf_yaml_settings.py
+++ b/src/onaptests/configuration/basic_cnf_yaml_settings.py
@@ -79,3 +79,5 @@ VIM_PASSWORD = cloud.config.auth.get('password','dummy123')
 VIM_SERVICE_URL = cloud.config.auth.get('auth_url','http://10.12.25.2:5000/v3')
 TENANT_ID = cloud.config.auth.get('project_id','123456')
 TENANT_NAME = cloud.config.auth.get('project_name','dummy_test')
+
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/basic_network_nomulticloud_settings.py b/src/onaptests/configuration/basic_network_nomulticloud_settings.py
index cc22601..ab9e5ab 100644
--- a/src/onaptests/configuration/basic_network_nomulticloud_settings.py
+++ b/src/onaptests/configuration/basic_network_nomulticloud_settings.py
@@ -66,3 +66,5 @@ TENANT_ID = cloud.config.auth.get('project_id','Fill me')
 TENANT_NAME = cloud.config.auth.get('project_name','Fill me')
 CLOUD_REGION_ID = cloud.config.auth.get('region_name','RegionOne')
 CLOUD_DOMAIN = cloud.config.auth.get('project_domain_name','Default')
+
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/basic_onboard_settings.py b/src/onaptests/configuration/basic_onboard_settings.py
index db7680d..2fa1820 100644
--- a/src/onaptests/configuration/basic_onboard_settings.py
+++ b/src/onaptests/configuration/basic_onboard_settings.py
@@ -66,3 +66,5 @@ VENDOR_NAME = "basic_onboard_vendor"
 
 VF_NAME = "basic_onboard_vf"
 VSP_NAME = "basic_onboard_vsp"
+
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/basic_vm_macro_settings.py b/src/onaptests/configuration/basic_vm_macro_settings.py
index b29cd1d..2784f86 100644
--- a/src/onaptests/configuration/basic_vm_macro_settings.py
+++ b/src/onaptests/configuration/basic_vm_macro_settings.py
@@ -59,3 +59,5 @@ except (FileNotFoundError, ValueError):
     raise onap_test_exceptions.TestConfigurationException
 
 SERVICE_INSTANCE_NAME = f"basic_macro_{str(uuid4())}"
+
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/basic_vm_macro_stability_settings.py b/src/onaptests/configuration/basic_vm_macro_stability_settings.py
index 06938c4..b2fe037 100644
--- a/src/onaptests/configuration/basic_vm_macro_stability_settings.py
+++ b/src/onaptests/configuration/basic_vm_macro_stability_settings.py
@@ -2,3 +2,4 @@ from .basic_vm_macro_settings import *   # pylint: disable=W0614
 
 SERVICE_YAML_TEMPLATE = Path(Path(__file__).parent.parent, "templates/vnf-services/" +
                          "basic_vm_macro_stability-service.yaml")
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/basic_vm_multicloud_yaml_settings.py b/src/onaptests/configuration/basic_vm_multicloud_yaml_settings.py
index 437bd13..51c74e5 100644
--- a/src/onaptests/configuration/basic_vm_multicloud_yaml_settings.py
+++ b/src/onaptests/configuration/basic_vm_multicloud_yaml_settings.py
@@ -41,3 +41,4 @@ PLATFORM = "sdktests_platform"
 SERVICE_INSTANCE_NAME = "sdktests_service_instance_name"
 
 SERVICE_YAML_TEMPLATE = sys.path[-1] + "/onaptests/templates/vnf-services/basic_vm-service.yaml"
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/basic_vm_settings.py b/src/onaptests/configuration/basic_vm_settings.py
index a62e0b1..2c7d85f 100644
--- a/src/onaptests/configuration/basic_vm_settings.py
+++ b/src/onaptests/configuration/basic_vm_settings.py
@@ -70,3 +70,5 @@ TENANT_ID = cloud.config.auth.get('project_id','Fill me')
 TENANT_NAME = cloud.config.auth.get('project_name','Fill me')
 CLOUD_REGION_ID = cloud.config.auth.get('region_name','RegionOne')
 CLOUD_DOMAIN = cloud.config.auth.get('project_domain_name','Default')
+
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/clearwater_ims_nomulticloud_settings.py b/src/onaptests/configuration/clearwater_ims_nomulticloud_settings.py
index 1a1cb3c..d20d9ff 100644
--- a/src/onaptests/configuration/clearwater_ims_nomulticloud_settings.py
+++ b/src/onaptests/configuration/clearwater_ims_nomulticloud_settings.py
@@ -62,3 +62,5 @@ TENANT_ID = cloud.config.auth.get('project_id','Fill me')
 TENANT_NAME = cloud.config.auth.get('project_name','Fill me')
 CLOUD_REGION_ID = cloud.config.get('region_name','RegionOne')
 CLOUD_DOMAIN = cloud.config.auth.get('project_domain_name','Default')
+
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/configuration/multi_vnf_ubuntu_settings.py b/src/onaptests/configuration/multi_vnf_ubuntu_settings.py
new file mode 100644
index 0000000..47795fd
--- /dev/null
+++ b/src/onaptests/configuration/multi_vnf_ubuntu_settings.py
@@ -0,0 +1,82 @@
+import uuid
+import os
+import sys
+from pathlib import Path
+import openstack
+from jinja2 import Environment, PackageLoader
+from .settings import *  # pylint: disable=W0614
+
+VNF_FILENAME_PREFIX = "multi-vnf-ubuntu"
+SERVICE_NAME = f"multivnfubuntu{str(uuid.uuid4().hex)[:6]}"
+
+
+# We need to create a service file with a random service name,
+# to be sure that we force onboarding
+def generate_service_config_yaml_file(filename):
+    """ generate the service file with a random service name
+     from a jinja template"""
+
+    env = Environment(
+        loader=PackageLoader('onaptests', 'templates/vnf-services'),
+    )
+    template = env.get_template(f"{filename}.yaml.j2")
+
+    rendered_template = template.render(service_name=SERVICE_NAME)
+
+    file_name = (sys.path[-1] + "/onaptests/templates/vnf-services/" +
+                 f"{filename}.yaml")
+
+    with open(file_name, 'w+') as file_to_write:
+        file_to_write.write(rendered_template)
+
+
+CLEANUP_FLAG = True
+
+CDS_DD_FILE = Path(Path(__file__).parent.parent, "templates/artifacts/dd_nso_ubuntu.json")
+CDS_CBA_UNENRICHED = Path(Path(__file__).parent.parent, "templates/artifacts/nso_ubuntuvnf.zip")
+CDS_CBA_ENRICHED = "/tmp/UBUNTUVNF_enriched.zip"
+
+ONLY_INSTANTIATE = False
+USE_MULTICLOUD = False
+
+CLOUD_REGION_CLOUD_OWNER = "Bell-IaaS"
+CLOUD_REGION_TYPE = "openstack"
+CLOUD_REGION_VERSION = "v1"
+CLOUD_OWNER_DEFINED_TYPE = "VNF"
+
+AVAILABILITY_ZONE_NAME = "z1"
+AVAILABILITY_ZONE_TYPE = "nova"
+COMPLEX_PHYSICAL_LOCATION_ID = "nso-lab-ltec"
+COMPLEX_DATA_CENTER_CODE = "nlt"
+
+GLOBAL_CUSTOMER_ID = "ubuntu-customer"
+
+TEST_CLOUD = os.getenv('OS_TEST_CLOUD')  # Get values from clouds.yaml
+cloud = openstack.connect(cloud=TEST_CLOUD)
+VIM_USERNAME = cloud.config.auth.get('username', 'nso')
+VIM_PASSWORD = cloud.config.auth.get('password', 'Password123')
+VIM_SERVICE_URL = cloud.config.auth.get('auth_url', 'https://10.195.194.215:5000')
+TENANT_ID = cloud.config.auth.get('project_id', 'e2710e84063b421fab08189818761d55')
+TENANT_NAME = cloud.config.auth.get('project_name', 'nso')
+CLOUD_REGION_ID = cloud.config.auth.get('region_name', 'nso215')
+CLOUD_DOMAIN = cloud.config.auth.get('project_domain_name', 'Default')
+
+OWNING_ENTITY = "seb"
+PROJECT = "Project-UbuntuDemo"
+LINE_OF_BUSINESS = "wireless"
+PLATFORM = "iaas-openstack"
+CLOUD_DOMAIN = "Default"
+
+VENDOR_NAME = 'ubuntu_xtesting_vendor'
+
+SERVICE_YAML_TEMPLATE = Path(Path(__file__).parent.parent, "templates/vnf-services/" +
+                             f"{VNF_FILENAME_PREFIX}-service.yaml")
+
+MODEL_YAML_TEMPLATE = Path(Path(__file__).parent.parent, "templates/vnf-services/" +
+                           f"{VNF_FILENAME_PREFIX}-model.yaml")
+
+
+generate_service_config_yaml_file(f"{VNF_FILENAME_PREFIX}-service")
+generate_service_config_yaml_file(f"{VNF_FILENAME_PREFIX}-model")
+
+SERVICE_INSTANCE_NAME = f"{SERVICE_NAME}_svc"
diff --git a/src/onaptests/configuration/pnf_macro_settings.py b/src/onaptests/configuration/pnf_macro_settings.py
index d9ccb1b..515fce1 100644
--- a/src/onaptests/configuration/pnf_macro_settings.py
+++ b/src/onaptests/configuration/pnf_macro_settings.py
@@ -48,3 +48,6 @@ SERVICE_INSTANCE_NAME = "TestPNFMacroInstantiation"
 DCAE_VES_COLLECTOR_POD_NAME = "dcae-ves-collector"
 PNF_WAIT_TIME = 60.0
 PNF_REGISTRATION_NUMBER_OF_TRIES = 20
+
+# Disable YAML SDC model definition which means all SDC config reside in SERVICE_YAML_TEMPLATE
+MODEL_YAML_TEMPLATE = None
diff --git a/src/onaptests/scenario/basic_vm_macro.py b/src/onaptests/scenario/basic_vm_macro.py
index f22ee12..67dded9 100644
--- a/src/onaptests/scenario/basic_vm_macro.py
+++ b/src/onaptests/scenario/basic_vm_macro.py
@@ -72,6 +72,10 @@ class BasicVmMacroStep(YamlTemplateBaseStep):
         return self._yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> dict:
         """Service name.
 
diff --git a/src/onaptests/scenario/multi_vnf_macro.py b/src/onaptests/scenario/multi_vnf_macro.py
new file mode 100644
index 0000000..284baf0
--- /dev/null
+++ b/src/onaptests/scenario/multi_vnf_macro.py
@@ -0,0 +1,139 @@
+"""Instantiate basic vm using SO macro flow."""
+import logging
+import time
+
+from yaml import load
+
+from onapsdk.configuration import settings
+from onapsdk.exceptions import SDKException
+from xtesting.core import testcase
+
+from onaptests.steps.base import YamlTemplateBaseStep
+from onaptests.steps.onboard.cds import CbaPublishStep
+from onaptests.utils.exceptions import OnapTestException
+from onaptests.steps.instantiate.service_macro import YamlTemplateServiceMacroInstantiateStep
+
+
+class MultiVnfUbuntuMacroStep(YamlTemplateBaseStep):
+
+    def __init__(self, cleanup=False):
+        """Initialize step.
+
+        Substeps:
+            - CbaPublishStep
+            - YamlTemplateServiceAlaCarteInstantiateStep.
+        """
+        super().__init__(cleanup=cleanup)
+        self._yaml_template: dict = None
+        self._model_yaml_template: dict = None
+        self.add_step(CbaPublishStep(
+            cleanup=settings.CLEANUP_FLAG
+        ))
+        self.add_step(YamlTemplateServiceMacroInstantiateStep(
+            cleanup=settings.CLEANUP_FLAG
+        ))
+
+    @property
+    def description(self) -> str:
+        """Step description.
+
+        Used for reports
+
+        Returns:
+            str: Step description
+
+        """
+        return "Multi VNF Ubuntu macro scenario step"
+
+    @property
+    def component(self) -> str:
+        """Component name.
+
+        Name of component which step is related with.
+            Most is the name of ONAP component.
+
+        Returns:
+            str: Component name
+
+        """
+        return "PythonSDK-tests"
+
+    @property
+    def yaml_template(self) -> dict:
+        """YAML template abstract property.
+
+        Every YAML template step need to implement that property.
+
+        Returns:
+            dict: YAML template
+
+        """
+        if not self._yaml_template:
+            with open(settings.SERVICE_YAML_TEMPLATE, "r") as yaml_template:
+                self._yaml_template: dict = load(yaml_template)
+        return self._yaml_template
+
+    @property
+    def model_yaml_template(self) -> dict:
+        if not self._model_yaml_template:
+            with open(settings.MODEL_YAML_TEMPLATE, "r") as model_yaml_template:
+                self._model_yaml_template: dict = load(model_yaml_template)
+        return self._model_yaml_template
+
+    @property
+    def service_name(self) -> dict:
+        """Service name.
+
+        Get from YAML template.
+
+        Returns:
+            str: Service name
+
+        """
+        return next(iter(self.yaml_template.keys()))
+
+    @property
+    def service_instance_name(self) -> str:
+        """Service instance name.
+
+        Returns:
+            str: Service instance name
+
+        """
+        return settings.SERVICE_INSTANCE_NAME
+
+
+class MultiVnfUbuntuMacro(testcase.TestCase):
+    """Instantiate a basic vm macro."""
+
+    __logger = logging.getLogger(__name__)
+
+    def __init__(self, **kwargs):
+        """Init Basic Macro use case."""
+        if "case_name" not in kwargs:
+            kwargs["case_name"] = 'nso_ubuntu_macro'
+        super().__init__(**kwargs)
+        self.__logger.debug("NSO Ubuntu macro init started")
+        self.test = MultiVnfUbuntuMacro(cleanup=settings.CLEANUP_FLAG)
+
+    def run(self):
+        """Run NSO Ubuntu macro test."""
+        self.start_time = time.time()
+        try:
+            self.test.execute()
+            self.__logger.info("Starting to clean up in {} seconds".format(settings.CLEANUP_ACTIVITY_TIMER))
+            time.sleep(settings.CLEANUP_ACTIVITY_TIMER)
+            self.test.cleanup()
+            self.result = 100
+        except OnapTestException as exc:
+            self.result = 0
+            self.__logger.error(exc.error_message)
+        except SDKException:
+            self.result = 0
+            self.__logger.error("SDK Exception")
+        finally:
+            self.stop_time = time.time()
+
+    def clean(self):
+        """Generate report."""
+        self.test.reports_collection.generate_report()
diff --git a/src/onaptests/scenario/pnf_macro.py b/src/onaptests/scenario/pnf_macro.py
index e86557b..73a2adf 100644
--- a/src/onaptests/scenario/pnf_macro.py
+++ b/src/onaptests/scenario/pnf_macro.py
@@ -76,6 +76,10 @@ class PnfMacroScenarioStep(YamlTemplateBaseStep):
         return self._yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> dict:
         """Service name.
 
diff --git a/src/onaptests/steps/base.py b/src/onaptests/steps/base.py
index 744fc7b..4d6858d 100644
--- a/src/onaptests/steps/base.py
+++ b/src/onaptests/steps/base.py
@@ -247,3 +247,15 @@ class YamlTemplateBaseStep(BaseStep, ABC):
             dict: YAML template
 
         """
+
+    @property
+    @abstractmethod
+    def model_yaml_template(self) -> dict:
+        """Model YAML template abstract property.
+
+        Every YAML template step need to implement that property.
+
+        Returns:
+            dict: YAML template
+
+        """
diff --git a/src/onaptests/steps/instantiate/service_ala_carte.py b/src/onaptests/steps/instantiate/service_ala_carte.py
index dd62f52..3407e8e 100644
--- a/src/onaptests/steps/instantiate/service_ala_carte.py
+++ b/src/onaptests/steps/instantiate/service_ala_carte.py
@@ -135,6 +135,10 @@ class YamlTemplateServiceAlaCarteInstantiateStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
diff --git a/src/onaptests/steps/instantiate/service_macro.py b/src/onaptests/steps/instantiate/service_macro.py
index d83d2fe..b169049 100644
--- a/src/onaptests/steps/instantiate/service_macro.py
+++ b/src/onaptests/steps/instantiate/service_macro.py
@@ -12,7 +12,8 @@ from onapsdk.aai.cloud_infrastructure.tenant import Tenant
 from onapsdk.configuration import settings
 from onapsdk.exceptions import ResourceNotFound
 from onapsdk.sdc.service import Service
-from onapsdk.so.instantiation import InstantiationParameter, ServiceInstantiation, VfmoduleParameters, VnfParameters
+from onapsdk.so.instantiation import InstantiationParameter, ServiceInstantiation, VfmoduleParameters, VnfParameters, SoService
+from onapsdk.vid import LineOfBusiness, Platform, Project
 from onaptests.steps.cloud.customer_service_subscription_create import CustomerServiceSubscriptionCreateStep
 
 import onaptests.utils.exceptions as onap_test_exceptions
@@ -34,6 +35,7 @@ class YamlTemplateServiceMacroInstantiateStep(YamlTemplateBaseStep):
         """
         super().__init__(cleanup=cleanup)
         self._yaml_template: dict = None
+        self._model_yaml_template: dict = None
         self._service_instance_name: str = None
         self._service_instance: str = None
         if not settings.ONLY_INSTANTIATE:
@@ -76,6 +78,23 @@ class YamlTemplateServiceMacroInstantiateStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        """Step Model YAML template.
+
+        Load from file if it's a root step, get from parent otherwise.
+
+        Returns:
+            dict: Step YAML template
+
+        """
+        if self.is_root:
+            if not self._model_yaml_template:
+                with open(settings.MODEL_YAML_TEMPLATE, "r") as model_yaml_template:
+                    self._model_yaml_template: dict = load(model_yaml_template)
+            return self._model_yaml_template
+        return self.parent.model_yaml_template
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
@@ -142,6 +161,9 @@ class YamlTemplateServiceMacroInstantiateStep(YamlTemplateBaseStep):
         except ResourceNotFound:
             self._logger.info("Owning entity not found, create it")
             owning_entity = OwningEntity.create(settings.OWNING_ENTITY)
+        vid_project: Project = Project(settings.PROJECT)
+        line_of_business: LineOfBusiness = LineOfBusiness(settings.LINE_OF_BUSINESS)
+        platform: Platform = Platform(settings.PLATFORM)
 
         # Before instantiating, be sure that the service has been distributed
         self._logger.info("******** Check Service Distribution *******")
@@ -163,31 +185,40 @@ class YamlTemplateServiceMacroInstantiateStep(YamlTemplateBaseStep):
 
         if distribution_completed is False:
             self._logger.error(
-                "Service Distribution for %s failed !!",service.name)
+                "Service Distribution for %s failed !!", service.name)
             raise onap_test_exceptions.ServiceDistributionException
 
+        so_service = None
         vnf_params_list: List[VnfParameters] = []
-        for vnf_data in self.yaml_template[self.service_name].get("vnfs", []):
-            vnf_params_list.append(VnfParameters(
-                vnf_data["vnf_name"],
-                [InstantiationParameter(name=parameter["name"], value=parameter["value"]) for parameter in vnf_data.get("vnf_parameters", [])],
-                [VfmoduleParameters(vf_module_data["vf_module_name"],
-                 [InstantiationParameter(name=parameter["name"], value=parameter["value"]) for parameter in vf_module_data.get("parameters", [])]) \
+        if settings.MODEL_YAML_TEMPLATE:
+            so_data = self.yaml_template[self.service_name]
+            so_service = SoService(vnfs=so_data.get("vnfs", []),
+                                   subscription_service_type=so_data.get('subscription_service_type'))
+        else:
+            for vnf_data in self.yaml_template[self.service_name].get("vnfs", []):
+                vnf_params_list.append(VnfParameters(
+                    vnf_data["vnf_name"],
+                    [InstantiationParameter(name=parameter["name"], value=parameter["value"]) for parameter in
+                     vnf_data.get("vnf_parameters", [])],
+                    [VfmoduleParameters(vf_module_data["vf_module_name"],
+                                        [InstantiationParameter(name=parameter["name"], value=parameter["value"]) for
+                                         parameter in vf_module_data.get("parameters", [])]) \
                      for vf_module_data in vnf_data.get("vf_module_parameters", [])]
-            ))
+                ))
 
         service_instantiation = ServiceInstantiation.instantiate_macro(
-            service,
+            sdc_service=service,
             customer=customer,
             owning_entity=owning_entity,
-            project=settings.PROJECT,
-            line_of_business=settings.LINE_OF_BUSINESS,
-            platform=settings.PLATFORM,
+            project=vid_project,
+            line_of_business=line_of_business,
+            platform=platform,
             cloud_region=cloud_region,
             tenant=tenant,
             service_instance_name=self.service_instance_name,
             vnf_parameters=vnf_params_list,
-            enable_multicloud=settings.USE_MULTICLOUD
+            enable_multicloud=settings.USE_MULTICLOUD,
+            so_service=so_service
         )
         try:
             service_instantiation.wait_for_finish(timeout=settings.ORCHESTRATION_REQUEST_TIMEOUT)
@@ -197,9 +228,9 @@ class YamlTemplateServiceMacroInstantiateStep(YamlTemplateBaseStep):
         if service_instantiation.failed:
             self._logger.error("Service instantiation %s failed", self.service_instance_name)
             raise onap_test_exceptions.ServiceInstantiateException
-        else:
-            service_subscription: ServiceSubscription = customer.get_service_subscription_by_service_type(self.service_name)
-            self._service_instance: ServiceInstance = service_subscription.get_service_instance_by_name(self.service_instance_name)
+
+        service_subscription: ServiceSubscription = customer.get_service_subscription_by_service_type(self.service_name)
+        self._service_instance: ServiceInstance = service_subscription.get_service_instance_by_name(self.service_instance_name)
 
     @YamlTemplateBaseStep.store_state(cleanup=True)
     def cleanup(self) -> None:
diff --git a/src/onaptests/steps/instantiate/vf_module_ala_carte.py b/src/onaptests/steps/instantiate/vf_module_ala_carte.py
index aacecc3..af569fe 100644
--- a/src/onaptests/steps/instantiate/vf_module_ala_carte.py
+++ b/src/onaptests/steps/instantiate/vf_module_ala_carte.py
@@ -61,6 +61,10 @@ class YamlTemplateVfModuleAlaCarteInstantiateStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
diff --git a/src/onaptests/steps/instantiate/vl_ala_carte.py b/src/onaptests/steps/instantiate/vl_ala_carte.py
index 3bb293a..158e437 100644
--- a/src/onaptests/steps/instantiate/vl_ala_carte.py
+++ b/src/onaptests/steps/instantiate/vl_ala_carte.py
@@ -56,6 +56,10 @@ class YamlTemplateVlAlaCarteInstantiateStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
diff --git a/src/onaptests/steps/instantiate/vnf_ala_carte.py b/src/onaptests/steps/instantiate/vnf_ala_carte.py
index b02c7ea..8dbec78 100644
--- a/src/onaptests/steps/instantiate/vnf_ala_carte.py
+++ b/src/onaptests/steps/instantiate/vnf_ala_carte.py
@@ -54,6 +54,10 @@ class YamlTemplateVnfAlaCarteInstantiateStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
diff --git a/src/onaptests/steps/loop/clamp.py b/src/onaptests/steps/loop/clamp.py
index 86bcbb0..9a705f2 100644
--- a/src/onaptests/steps/loop/clamp.py
+++ b/src/onaptests/steps/loop/clamp.py
@@ -62,6 +62,10 @@ class ClampStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
diff --git a/src/onaptests/steps/onboard/clamp.py b/src/onaptests/steps/onboard/clamp.py
index afbd7cb..9d73a8e 100644
--- a/src/onaptests/steps/onboard/clamp.py
+++ b/src/onaptests/steps/onboard/clamp.py
@@ -54,6 +54,10 @@ class OnboardClampStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
diff --git a/src/onaptests/steps/onboard/pnf.py b/src/onaptests/steps/onboard/pnf.py
index 2ec44e2..4e3303e 100644
--- a/src/onaptests/steps/onboard/pnf.py
+++ b/src/onaptests/steps/onboard/pnf.py
@@ -99,6 +99,10 @@ class YamlTemplatePnfOnboardStep(YamlTemplateBaseStep):
         """
         return self.parent.yaml_template[self.parent.service_name]
 
+    @property
+    def model_yaml_template(self) -> dict:
+        return {}
+
     @YamlTemplateBaseStep.store_state
     def execute(self):
         """Onboard PNFs from YAML template."""
diff --git a/src/onaptests/steps/onboard/service.py b/src/onaptests/steps/onboard/service.py
index ee2d3ab..db1b330 100644
--- a/src/onaptests/steps/onboard/service.py
+++ b/src/onaptests/steps/onboard/service.py
@@ -86,6 +86,7 @@ class YamlTemplateServiceOnboardStep(YamlTemplateBaseStep):
         """
         super().__init__(cleanup=cleanup)
         self._yaml_template: dict = None
+        self._model_yaml_template: dict = None
         if "vnfs" in self.yaml_template[self.service_name]:
             self.add_step(YamlTemplateVfOnboardStep(cleanup=cleanup))
         if "pnfs" in self.yaml_template[self.service_name]:
@@ -111,7 +112,9 @@ class YamlTemplateServiceOnboardStep(YamlTemplateBaseStep):
             dict: Step YAML template
 
         """
-        if self.is_root:
+        if settings.MODEL_YAML_TEMPLATE:
+            return self.model_yaml_template
+        elif self.is_root:
             if not self._yaml_template:
                 with open(settings.SERVICE_YAML_TEMPLATE, "r") as yaml_template:
                     self._yaml_template: dict = load(yaml_template)
@@ -119,6 +122,23 @@ class YamlTemplateServiceOnboardStep(YamlTemplateBaseStep):
         return self.parent.yaml_template
 
     @property
+    def model_yaml_template(self) -> dict:
+        """Step Model YAML template.
+
+        Load from file if it's a root step, get from parent otherwise.
+
+        Returns:
+            dict: Step YAML template
+
+        """
+        if self.is_root:
+            if not self._model_yaml_template:
+                with open(settings.MODEL_YAML_TEMPLATE, "r") as model_yaml_template:
+                    self._model_yaml_template: dict = load(model_yaml_template)
+            return self._model_yaml_template
+        return self.parent.model_yaml_template
+
+    @property
     def service_name(self) -> str:
         """Service name.
 
diff --git a/src/onaptests/steps/onboard/vf.py b/src/onaptests/steps/onboard/vf.py
index 76aaf2e..44c3749 100644
--- a/src/onaptests/steps/onboard/vf.py
+++ b/src/onaptests/steps/onboard/vf.py
@@ -80,7 +80,22 @@ class YamlTemplateVfOnboardStep(YamlTemplateBaseStep):
             dict: YAML template
 
         """
-        return self.parent.yaml_template[self.parent.service_name]
+        if settings.MODEL_YAML_TEMPLATE:
+            return self.model_yaml_template
+        else:
+            return self.parent.yaml_template[self.parent.service_name]
+
+    @property
+    def model_yaml_template(self) -> dict:
+        """Step Model YAML template.
+
+        Load from file if it's a root step, get from parent otherwise.
+
+        Returns:
+            dict: Step YAML template
+
+        """
+        return self.parent.model_yaml_template[self.parent.service_name]
 
     @YamlTemplateBaseStep.store_state
     def execute(self):
diff --git a/src/onaptests/steps/onboard/vsp.py b/src/onaptests/steps/onboard/vsp.py
index 6f8fbf6..5462c55 100644
--- a/src/onaptests/steps/onboard/vsp.py
+++ b/src/onaptests/steps/onboard/vsp.py
@@ -77,7 +77,22 @@ class YamlTemplateVspOnboardStep(YamlTemplateBaseStep):
             dict: YAML template
 
         """
-        return self.parent.yaml_template
+        if settings.MODEL_YAML_TEMPLATE:
+            return self.model_yaml_template
+        else:
+            return self.parent.yaml_template
+
+    @property
+    def model_yaml_template(self) -> dict:
+        """Model YAML template.
+
+        Get model YAML template from parent.
+
+        Returns:
+            dict: YAML template
+
+        """
+        return self.parent.model_yaml_template
 
     @YamlTemplateBaseStep.store_state
     def execute(self):
diff --git a/src/onaptests/templates/vnf-services/multi-vnf-ubuntu-model.yaml.j2 b/src/onaptests/templates/vnf-services/multi-vnf-ubuntu-model.yaml.j2
new file mode 100644
index 0000000..96037c9
--- /dev/null
+++ b/src/onaptests/templates/vnf-services/multi-vnf-ubuntu-model.yaml.j2
@@ -0,0 +1,16 @@
+---
+{{ service_name }}:
+    instantiation_type: "Macro"
+    vnfs:
+        - vnf_name: {{ service_name }}VF0
+          properties:
+              controller_actor: "CDS"
+              skip_post_instantiation_configuration: False
+              sdnc_artifact_name: "UbuntuVNF"
+              sdnc_model_version: "1.0.0"
+              sdnc_model_name: "UbuntuVNF"
+          vnf_artifact_type: "CONTROLLER_BLUEPRINT_ARCHIVE"
+          vnf_artifact_name: "UBUNTUVNF_enriched.zip"
+          vnf_artifact_label: "UbuntuVNF"
+          vnf_artifact_file_path: "/tmp/UBUNTUVNF_enriched.zip"
+          heat_files_to_upload: onaptests/templates/heat-files/nso_ubuntu/nso_ubuntu.zip
diff --git a/src/onaptests/templates/vnf-services/multi-vnf-ubuntu-service.yaml.j2 b/src/onaptests/templates/vnf-services/multi-vnf-ubuntu-service.yaml.j2
new file mode 100644
index 0000000..9403a7d
--- /dev/null
+++ b/src/onaptests/templates/vnf-services/multi-vnf-ubuntu-service.yaml.j2
@@ -0,0 +1,35 @@
+---
+{{ service_name }}:
+    subscription_service_type: {{ service_name }}
+    vnfs:
+        - model_name: {{ service_name }}VF0
+          vnf_name: {{ service_name }}00
+          parameters:
+              vnf-name: "multi_vnf_ubuntu_0_0"
+              vnf_name: "MultiVnfUbuntu00"
+          vf_modules:
+              - vf_module_name: {{ service_name }}00network0
+                model_name: base
+                parameters:
+                    name: "multi_vnf_ubuntu_0_0_network_0"
+                    cidr: "10.10.10.0/24"
+        - model_name: {{ service_name }}VF0
+          vnf_name: {{ service_name }}01
+          parameters:
+              vnf-name: "multi_vnf_ubuntu_0_1"
+              vnf_name: "MultiVnfUbuntu01"
+          vf_modules:
+              - vf_module_name: {{ service_name }}01vfm0
+                model_name: ubuntu-vf-module
+                parameters:
+                    name: "multi_vnf_ubuntu_0_1_vfm_0"
+                    network_mgmt: "vlan197_net"
+                    key_name: "sebastien"
+                    network_name: "multi_vnf_ubuntu_0_0_network_0"
+              - vf_module_name: {{ service_name }}01vfm1
+                model_name: ubuntu-vf-module
+                parameters:
+                    name: "multi_vnf_ubuntu_0_1_vfm_1"
+                    network_mgmt: "vlan197_net"
+                    key_name: "sebastien"
+                    network_name: "multi_vnf_ubuntu_0_0_network_0"