[CORD-2080] Adding 'tosca_key' support in xproto
Change-Id: Ib01c1cdcb81a51819c9e08703e6c76a4ffa09f17
diff --git a/.gitignore b/.gitignore
index 3117408..afc1bc2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
.noseids
local_certs.crt
src/tosca/tmp.yaml
+src/grpc_client/KEYS.py
# Test Coverage
.coverage
diff --git a/Makefile b/Makefile
index a6493e6..d0f6c43 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,8 @@
nosetests -s -v --with-id --with-coverage --cover-html --cover-erase --cover-xml --cover-package="grpc_client, tosca"
build:
- docker build -t xosproject/xos-tosca --no-cache=true .
+ docker build -t xosproject/xos-tosca .
+ docker tag xosproject/xos-tosca:latest xosproject/xos-tosca:candidate
start: build
docker run -p 9200:9200 --name xos-tosca -d xosproject/xos-tosca
@@ -27,4 +28,5 @@
curl -H "xos-username: xosadmin@opencord.org" -H "xos-password: rk1UYDHZXbu6KVCMkhmV" -X POST --data-binary @test/tosca/test.yaml 127.0.0.1:9102/delete
tosca:
- xosgenx --target=src/tosca/xtarget/tosca.xtarget --output=src/tosca/custom_types --write-to-file=target ../xos/xos/core/models/core.xproto
\ No newline at end of file
+ xosgenx --target=src/tosca/xtarget/tosca.xtarget --output=src/tosca/custom_types --write-to-file=target ../xos/xos/core/models/core.xproto
+ xosgenx --target=src/tosca/xtarget/tosca_keys.xtarget --output=src/grpc_client/ --write-to-file=single --dest-file=KEYS.py ../xos/xos/core/models/core.xproto
\ No newline at end of file
diff --git a/src/grpc_client/KEYS.reference.py b/src/grpc_client/KEYS.reference.py
new file mode 100644
index 0000000..fd8c776
--- /dev/null
+++ b/src/grpc_client/KEYS.reference.py
@@ -0,0 +1,75 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
+
+#########################################################################
+# #
+# This file is here for reference, the used one is generate by xos-genx #
+# #
+#########################################################################
+
+TOSCA_KEYS = {
+ 'XOSBase': [],
+ 'User': ['email'],
+ 'Privilege': [],
+ 'AddressPool': ['name'],
+ 'Controller': ['name'],
+ 'ControllerImages': [],
+ 'ControllerNetwork': [],
+ 'ControllerRole': [],
+ 'ControllerSite': [],
+ 'ControllerPrivilege': [],
+ 'ControllerSitePrivilege': [],
+ 'ControllerSlice': [],
+ 'ControllerSlicePrivilege': [],
+ 'ControllerUser': [],
+ 'Deployment': ['name'],
+ 'DeploymentPrivilege': [],
+ 'DeploymentRole': [],
+ 'Diag': ['name'],
+ 'Flavor': ['name'],
+ 'Image': ['name'],
+ 'ImageDeployments': [],
+ 'Instance': ['name'],
+ 'Network': ['name'],
+ 'NetworkParameter': [],
+ 'NetworkParameterType': ['name'],
+ 'NetworkSlice': ['network', 'slice'],
+ 'NetworkTemplate': ['name'],
+ 'Node': ['name'],
+ 'NodeLabel': ['name'],
+ 'Port': [],
+ 'Role': [],
+ 'Service': ['name'],
+ 'ServiceAttribute': ['name'],
+ 'ServiceDependency': ['provider_service'],
+ 'ServiceMonitoringAgentInfo': ['name'],
+ 'ServicePrivilege': [],
+ 'ServiceRole': [],
+ 'Site': ['name'],
+ 'SiteDeployment': ['site', 'deployment'],
+ 'SitePrivilege': ['site', 'role'],
+ 'SiteRole': [],
+ 'Slice': ['name'],
+ 'SlicePrivilege': [],
+ 'SliceRole': [],
+ 'Tag': ['name'],
+ 'InterfaceType': ['name'],
+ 'ServiceInterface': ['service', 'interface_type'],
+ 'ServiceInstance': ['name'],
+ 'ServiceInstanceLink': ['provider_service_instance'],
+ 'ServiceInstanceAttribute': ['name'],
+ 'TenantWithContainer': ['name'],
+ 'XOS': ['name'],
+ 'XOSGuiExtension': ['name'],
+}
\ No newline at end of file
diff --git a/src/grpc_client/models_accessor.py b/src/grpc_client/models_accessor.py
index b51ee90..918c04d 100644
--- a/src/grpc_client/models_accessor.py
+++ b/src/grpc_client/models_accessor.py
@@ -27,39 +27,46 @@
Give a Model Class Name and some data, check if that exits or instantiate a new one
"""
- if data.get('name'):
- used_key = 'name'
- else:
- if len(data.keys()) > 0:
- # FIXME apparently we're not matching model without a name field
- used_key = data.keys()[0]
- else:
- used_key = None
+ # NOTE: we need to import this later as it's generated by main.py
+ from KEYS import TOSCA_KEYS
+
+ # get the key for this model
+ try:
+ filter_keys = TOSCA_KEYS[class_name]
+ except KeyError, e:
+ raise Exception("[XOS-TOSCA] Model %s doesn't have a tosca_key specified" % (class_name))
+
+ if len(filter_keys) == 0:
+ raise Exception("[XOS-TOSCA] Model %s doesn't have a tosca_key specified" % (class_name))
+
+ filter = {}
+ for k in filter_keys:
+ try:
+ filter[k] = data[k]
+ except KeyError, e:
+ raise Exception("[XOS-TOSCA] Model %s doesn't have a property for the specified tosca_key (%s)" % (class_name, e))
key = "%s~%s" % (username, password)
if not key in RESOURCES:
raise Exception("[XOS-TOSCA] User '%s' does not have ready resources" % username)
if class_name not in RESOURCES[key]:
- raise Exception('[XOS-TOSCA] The model you are trying to create (%s: %s, class: %s) is not know by xos-core' % (used_key, data[used_key], class_name))
+ raise Exception('[XOS-TOSCA] The model you are trying to create (class: %s, properties, %s) is not know by xos-core' % (class_name, str(filter)))
cls = RESOURCES[key][class_name]
- if used_key:
- models = cls.objects.filter(**{used_key: data[used_key]})
- else:
- # NOTE if we don't have a way to track the model, create a new one
- models = []
+
+ models = cls.objects.filter(**filter)
if len(models) == 1:
- print "[XOS-Tosca] Model %s already exist, retrieving instance..." % data[used_key]
+ print "[XOS-Tosca] Model of class %s and properties %s already exist, retrieving instance..." % (class_name, str(filter))
model = models[0]
elif len(models) == 0:
if 'must-exist' in data and data['must-exist']:
- raise Exception("[XOS-TOSCA] Model %s:%s has property 'must-exist' but cannot be found" % (class_name, data[used_key]))
+ raise Exception("[XOS-TOSCA] Model of class %s and properties %s has property 'must-exist' but cannot be found" % (class_name, str(filter)))
model = cls.objects.new()
- print "[XOS-Tosca] Model %s is new, creating new instance..." % data[used_key] if used_key else class_name
+ print "[XOS-Tosca] Model (%s) is new, creating new instance..." % str(filter)
else:
- raise Exception("[XOS-Tosca] Model %s has multiple instances, I can't handle it" % data[used_key])
+ raise Exception("[XOS-Tosca] Model of class %s and properties %s has multiple instances, I can't handle it" % (class_name, str(filter)))
return model
\ No newline at end of file
diff --git a/src/tosca/default.py b/src/tosca/default.py
index 6bb789c..4de0975 100644
--- a/src/tosca/default.py
+++ b/src/tosca/default.py
@@ -17,4 +17,5 @@
import os
TOSCA_DEFS_DIR = os.path.dirname(os.path.realpath(__file__)) + "/custom_types"
-TOSCA_RECIPES_DIR = os.path.dirname(os.path.realpath(__file__)) + "/"
\ No newline at end of file
+TOSCA_RECIPES_DIR = os.path.dirname(os.path.realpath(__file__)) + "/"
+TOSCA_KEYS_DIR = os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../grpc_client")
\ No newline at end of file
diff --git a/src/tosca/generator.py b/src/tosca/generator.py
index 12e2442..6aa309c 100644
--- a/src/tosca/generator.py
+++ b/src/tosca/generator.py
@@ -15,7 +15,7 @@
import os
-from default import TOSCA_DEFS_DIR
+from default import TOSCA_DEFS_DIR, TOSCA_KEYS_DIR
from xosgenx.generator import XOSGenerator
from xosapi.xos_grpc_client import Empty
@@ -36,7 +36,6 @@
print "[XOS-TOSCA] Generating TOSCA"
self._clean()
-
try:
xproto = client.utility.GetXproto(Empty())
args = Args()
@@ -50,3 +49,17 @@
print "[XOS-TOSCA] Failed to generate TOSCA"
print e
+ try:
+ xproto = client.utility.GetXproto(Empty())
+ args = Args()
+ args.output = TOSCA_KEYS_DIR
+ args.inputs = str(xproto.xproto)
+ args.target = os.path.join(current_dir, 'xtarget/tosca_keys.xtarget')
+ args.write_to_file = 'single'
+ args.dest_file = 'KEYS.py'
+ XOSGenerator.generate(args)
+ print "[XOS-TOSCA] TOSCA Keys generated in %s" % args.output
+ except Exception as e:
+ print "[XOS-TOSCA] Failed to generate TOSCA Keys"
+ print e
+
diff --git a/src/tosca/parser.py b/src/tosca/parser.py
index acbd5f1..b30f716 100644
--- a/src/tosca/parser.py
+++ b/src/tosca/parser.py
@@ -147,6 +147,14 @@
setattr(model, "%s_id" % class_name, related_model.id)
return model
+ @staticmethod
+ def add_dependencies(data, requirements, saved_models):
+ for dep in requirements:
+ class_name = dep.keys()[0]
+ related_model = saved_models[dep[class_name]['node']]
+ data["%s_id" % class_name] = related_model.id
+ return data
+
def __init__(self, recipe, username, password, **kwargs):
self.delete = False
@@ -198,6 +206,10 @@
data = {}
# [] get model by class name
class_name = recipe.type.replace("tosca.nodes.", "")
+
+ # augemnt data with relations
+ data = self.add_dependencies(data, recipe.requirements, self.saved_model_by_name)
+
model = GRPCModelsAccessor.get_model_from_classname(class_name, data, self.username, self.password)
# [] populate model with data
model = self.populate_model(model, data)
diff --git a/src/tosca/xtarget/tosca_keys.xtarget b/src/tosca/xtarget/tosca_keys.xtarget
new file mode 100644
index 0000000..ad235e5
--- /dev/null
+++ b/src/tosca/xtarget/tosca_keys.xtarget
@@ -0,0 +1,5 @@
+TOSCA_KEYS = {
+{%- for m in proto.messages %}
+ '{{ m.name }}': {{ xproto_fields_to_tosca_keys(m.fields + xproto_base_fields(m, proto.message_table)) }},
+{%- endfor %}
+}
\ No newline at end of file
diff --git a/test/test_grpc_models_accessor.py b/test/test_grpc_models_accessor.py
index 3851857..729fac3 100644
--- a/test/test_grpc_models_accessor.py
+++ b/test/test_grpc_models_accessor.py
@@ -18,6 +18,7 @@
from mock import patch, MagicMock
from grpc_client.models_accessor import GRPCModelsAccessor
from grpc_client.resources import RESOURCES
+from grpc_client.KEYS import TOSCA_KEYS
class FakeObj:
new = None
@@ -34,15 +35,26 @@
mock_resources = {
'username~pass': {
- 'test-model': FakeResource
+ 'test-model': FakeResource,
+ 'single-key': FakeResource,
+ 'double-key': FakeResource
}
}
+mock_keys = {
+ 'i-do-not-exists': ['name'],
+ 'test-model': ['name'],
+ 'empty-key': [],
+ 'single-key': ['fake_key'],
+ 'double-key': ['key_1', 'key_2'],
+}
+
USERNAME = 'username'
PASSWORD = 'pass'
class GRPCModelsAccessor_Create_or_update_Test(unittest.TestCase):
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
def test_unkown_user(self):
"""
[GRPCModelsAccessor] get_model_from_classname: If a user does not have orm classes, raise
@@ -55,6 +67,7 @@
self.assertEqual(e.exception.message, "[XOS-TOSCA] User 'username' does not have ready resources")
@patch.dict(RESOURCES, mock_resources, clear=True)
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
def test_unkown_module(self):
"""
[GRPCModelsAccessor] get_model_from_classname: If a model is not know by the grpc api, raise
@@ -64,35 +77,92 @@
}
with self.assertRaises(Exception) as e:
GRPCModelsAccessor.get_model_from_classname('i-do-not-exists', data, USERNAME, PASSWORD)
- self.assertEqual(e.exception.message, "[XOS-TOSCA] The model you are trying to create (name: test, class: i-do-not-exists) is not know by xos-core")
+ self.assertEqual(e.exception.message, "[XOS-TOSCA] The model you are trying to create (class: i-do-not-exists, properties, {'name': 'test'}) is not know by xos-core")
+
+ def test_unkown_tosca_key(self):
+ """
+ [GRPCModelsAccessor] get_model_from_classname: If a model does not have a tosca_key, raise
+ """
+ data = {
+ "name": "test"
+ }
+ with self.assertRaises(Exception) as e:
+ GRPCModelsAccessor.get_model_from_classname('no-key', data, USERNAME, PASSWORD)
+ self.assertEqual(e.exception.message, "[XOS-TOSCA] Model no-key doesn't have a tosca_key specified")
+
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
+ def test_empty_tosca_key(self):
+ """
+ [GRPCModelsAccessor] get_model_from_classname: If a model does not have a tosca_key, raise
+ """
+ data = {
+ "name": "test"
+ }
+ with self.assertRaises(Exception) as e:
+ GRPCModelsAccessor.get_model_from_classname('empty-key', data, USERNAME, PASSWORD)
+ self.assertEqual(e.exception.message, "[XOS-TOSCA] Model empty-key doesn't have a tosca_key specified")
+
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
+ def test_tosca_key_are_defined(self):
+ """
+ [GRPCModelsAccessor] get_model_from_classname: a model should have a property for it's tosca_key
+ """
+ data = {
+ "name": "test",
+ }
+ with self.assertRaises(Exception) as e:
+ GRPCModelsAccessor.get_model_from_classname('single-key', data, USERNAME, PASSWORD)
+ self.assertEqual(e.exception.message, "[XOS-TOSCA] Model single-key doesn't have a property for the specified tosca_key ('fake_key')")
@patch.object(FakeResource.objects, "filter")
@patch.object(FakeResource.objects, "new", MagicMock(return_value=FakeModel))
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
+ def test_composite_key(self, mock_filter):
+ """
+ [GRPCModelsAccessor] get_model_from_classname: should use a composite key to lookup a model
+ """
+ data = {
+ "name": "test",
+ "key_1": "key1",
+ "key_2": "key2"
+ }
+ with patch.dict(RESOURCES, mock_resources, clear=True):
+ model = GRPCModelsAccessor.get_model_from_classname('double-key', data, USERNAME, PASSWORD)
+ mock_filter.assert_called_with(key_1="key1", key_2="key2")
+ self.assertEqual(model, FakeModel)
+
+ @patch.object(FakeResource.objects, "filter")
+ @patch.object(FakeResource.objects, "new", MagicMock(return_value=FakeModel))
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
def test_new_model(self, mock_filter):
"""
[GRPCModelsAccessor] get_model_from_classname: should create a new model
"""
data = {
- "name": "test"
+ "name": "test",
+ "fake_key": "key"
}
with patch.dict(RESOURCES, mock_resources, clear=True):
- model = GRPCModelsAccessor.get_model_from_classname('test-model', data, USERNAME, PASSWORD)
- mock_filter.assert_called_with(name="test")
+ model = GRPCModelsAccessor.get_model_from_classname('single-key', data, USERNAME, PASSWORD)
+ mock_filter.assert_called_with(fake_key="key")
self.assertEqual(model, FakeModel)
@patch.object(FakeResource.objects, "filter", MagicMock(return_value=[FakeExistingModel]))
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
def test_existing_model(self):
"""
[GRPCModelsAccessor] get_model_from_classname: should update an existing model
"""
data = {
- "name": "test"
+ "name": "test",
+ "fake_key": "key"
}
with patch.dict(RESOURCES, mock_resources, clear=True):
- model = GRPCModelsAccessor.get_model_from_classname('test-model', data, USERNAME, PASSWORD)
+ model = GRPCModelsAccessor.get_model_from_classname('single-key', data, USERNAME, PASSWORD)
self.assertEqual(model, FakeExistingModel)
@patch.object(FakeResource.objects, "filter", MagicMock(return_value=['a', 'b']))
+ @patch.dict(TOSCA_KEYS, mock_keys, clear=True)
def test_multiple_models(self):
"""
[GRPCModelsAccessor] get_model_from_classname: should raise an exception if multiple instances are found
@@ -103,33 +173,7 @@
with patch.dict(RESOURCES, mock_resources, clear=True):
with self.assertRaises(Exception) as e:
GRPCModelsAccessor.get_model_from_classname('test-model', data, USERNAME, PASSWORD)
- self.assertEqual(e.exception.message, "[XOS-Tosca] Model test has multiple instances, I can't handle it")
-
- @patch.dict(RESOURCES, mock_resources, clear=True)
- @patch.object(FakeResource.objects, "filter")
- @patch.object(FakeResource.objects, "new")
- def test_find_model_without_name_property(self, mock_new, mock_filter):
- """
- [GRPCModelsAccessor] get_model_from_classname: should lookup a model by the first property
- """
- data = {
- 'foo': 'bar',
- 'something': 'else'
- }
- GRPCModelsAccessor.get_model_from_classname('test-model', data, USERNAME, PASSWORD)
- mock_filter.assert_called_with(foo="bar")
- mock_new.assert_called()
-
- @patch.dict(RESOURCES, mock_resources, clear=True)
- @patch.object(FakeResource.objects, "new")
- def test_model_without_properties(self, mock_new):
- """
- [GRPCModelsAccessor] get_model_from_classname: should create a new model if not properties are specified
- """
- data = {
- }
- GRPCModelsAccessor.get_model_from_classname('test-model', data, USERNAME, PASSWORD)
- mock_new.assert_called()
+ self.assertEqual(e.exception.message, "[XOS-Tosca] Model of class test-model and properties {'name': 'test'} has multiple instances, I can't handle it")
if __name__ == '__main__':
unittest.main()
\ No newline at end of file
diff --git a/test/test_tosca_parser_e2e.py b/test/test_tosca_parser_e2e.py
index a4c8e29..87f3cf1 100644
--- a/test/test_tosca_parser_e2e.py
+++ b/test/test_tosca_parser_e2e.py
@@ -220,4 +220,4 @@
with self.assertRaises(Exception) as e:
parser.execute()
- self.assertEqual(e.exception.message.message, "[XOS-TOSCA] Model Site:Open Networking Lab has property 'must-exist' but cannot be found")
+ self.assertEqual(e.exception.message.message, "[XOS-TOSCA] Model of class Site and properties {'name': 'Open Networking Lab'} has property 'must-exist' but cannot be found")
diff --git a/test/tosca/link.yaml b/test/tosca/link.yaml
new file mode 100644
index 0000000..f2c000f
--- /dev/null
+++ b/test/tosca/link.yaml
@@ -0,0 +1,160 @@
+
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
+
+
+tosca_definitions_version: tosca_simple_yaml_1_0
+
+description: Persist xos-sample-gui-extension
+
+imports:
+ - custom_types/slice.yaml
+ - custom_types/network.yaml
+ - custom_types/networkslice.yaml
+ - custom_types/networktemplate.yaml
+ - custom_types/site.yaml
+ - custom_types/image.yaml
+ - custom_types/service.yaml
+ - custom_types/serviceinstance.yaml
+ - custom_types/serviceinstancelink.yaml
+
+topology_template:
+ node_templates:
+
+ service#mcord:
+ type: tosca.nodes.Service
+ properties:
+ name: mcord
+
+ test1:
+ type: tosca.nodes.ServiceInstance
+ properties:
+ name: test1
+
+ test2:
+ type: tosca.nodes.ServiceInstance
+ properties:
+ name: test2
+
+ link1:
+ type: tosca.nodes.ServiceInstanceLink
+ requirements:
+ - provider_service_instance:
+ node: test1
+ relationship: tosca.relationships.BelongsToOne
+ - subscriber_service_instance:
+ node: test2
+ relationship: tosca.relationships.BelongsToOne
+
+ link2:
+ type: tosca.nodes.ServiceInstanceLink
+ requirements:
+ - subscriber_service:
+ node: service#mcord
+ relationship: tosca.relationships.BelongsToOne
+ - provider_service_instance:
+ node: test2
+ relationship: tosca.relationships.BelongsToOne
+
+ # Site
+ mysite:
+ type: tosca.nodes.Site
+ properties:
+ must-exist: true
+ name: mysite
+
+ # Images
+ image#trusty-server-multi-nic:
+ type: tosca.nodes.Image
+ properties:
+ must-exist: true
+ name: trusty-server-multi-nic
+
+ # slices
+ slice#slice1:
+ type: tosca.nodes.Slice
+ properties:
+ name: mysite_slice1
+ requirements:
+ - site:
+ node: mysite
+ relationship: tosca.relationships.BelongsToOne
+ - default_image:
+ node: image#trusty-server-multi-nic
+ relationship: tosca.relationships.BelongsToOne
+
+ slice#slice2:
+ type: tosca.nodes.Slice
+ properties:
+ name: mysite_slice2
+ requirements:
+ - site:
+ node: mysite
+ relationship: tosca.relationships.BelongsToOne
+ - default_image:
+ node: image#trusty-server-multi-nic
+ relationship: tosca.relationships.BelongsToOne
+
+ # networks
+
+ shared_template:
+ type: tosca.nodes.NetworkTemplate
+ properties:
+ must-exist: true
+ name: shared_template
+
+ network#network1:
+ type: tosca.nodes.Network
+ properties:
+ name: network1
+ requirements:
+ - template:
+ node: shared_template
+ relationship: tosca.relationships.BelongsToOne
+ - owner:
+ node: slice#slice1
+ relationship: tosca.relationships.BelongsToOne
+
+ network#network2:
+ type: tosca.nodes.Network
+ properties:
+ name: network2
+ requirements:
+ - template:
+ node: shared_template
+ relationship: tosca.relationships.BelongsToOne
+ - owner:
+ node: slice#slice2
+ relationship: tosca.relationships.BelongsToOne
+
+ networkslice#slice1_network2:
+ type: tosca.nodes.NetworkSlice
+ requirements:
+ - network:
+ node: network#network2
+ relationship: tosca.relationships.BelongsToOne
+ - slice:
+ node: slice#slice1
+ relationship: tosca.relationships.BelongsToOne
+
+ networkslice#slice2_network1:
+ type: tosca.nodes.NetworkSlice
+ requirements:
+ - network:
+ node: network#network1
+ relationship: tosca.relationships.BelongsToOne
+ - slice:
+ node: slice#slice2
+ relationship: tosca.relationships.BelongsToOne
+