add resource_id and is_external properties

Author: EarthmanT

cloudify/context.py

@@ -13,17 +13,17 @@
 #    * See the License for the specific language governing permissions and
 #    * limitations under the License.
 
-import errno
 import os
+import errno
 import warnings
 from contextlib import contextmanager
 
-from cloudify_rest_client.exceptions import CloudifyClientError
-from cloudify.endpoint import ManagerEndpoint, LocalEndpoint
-from cloudify.logs import init_cloudify_logger
+from cloudify import utils
 from cloudify import constants
 from cloudify import exceptions
-from cloudify import utils
+from cloudify.logs import init_cloudify_logger
+from cloudify.endpoint import ManagerEndpoint, LocalEndpoint
+from cloudify_rest_client.exceptions import CloudifyClientError
 from cloudify.constants import DEPLOYMENT, NODE_INSTANCE, RELATIONSHIP_INSTANCE
 
 
@@ -424,6 +424,16 @@ def number_of_instances(self):
         self._get_node_if_needed()
         return self._node.number_of_instances
 
+    @property
+    def is_external(self) -> bool:
+        """If this is a resource that Cloudify manages or not"""
+        return self._node.properties.get('use_external_resource', False)
+
+    @property
+    def resource_id(self):
+        """The resource's ID outside of Cloudify"""
+        return self._node.properties.get('resource_id')
+
 
 class NodeInstanceContext(EntityContext):
     def __init__(self, *args, **kwargs):

cloudify/tests/test_context.py

@@ -54,7 +54,11 @@ def setUp(self):
         os.environ[constants.LOCAL_RESOURCES_ROOT_ENV_KEY] = '/tmp/resources'
         self.context = context.CloudifyContext({
             'blueprint_id': '',
-            'tenant': {'name': 'default_tenant'}
+            'tenant': {'name': 'default_tenant'},
+            'properties': {
+                'use_external_resource': False,
+                'resource_id': 'foo'
+            }
         })
         # the context logger will try to publish messages to rabbit, which is
         # not available here. instead, we redirect the output to stdout.
@@ -318,6 +322,21 @@ def test_source_target_not_in_relationship(self):
                       'relationship-instance context but used in a '
                       'deployment context.', str(cm.exception))
 
+    def test_node_ctx_properties(self):
+        node = Mock(properties={
+            'use_external_resource': False,
+            'resource_id': 'foo'
+        })
+        endpoint = Mock()
+        endpoint.get_node.return_value = node
+        kwargs = {
+            'endpoint': endpoint,
+            'context': {'node_id': 'node_id'},
+        }
+        ctx_node = context.NodeContext(**kwargs)
+        self.assertFalse(ctx_node.is_external)
+        self.assertEqual(ctx_node.resource_id, 'foo')
+
     def test_ctx_type(self):
         ctx = context.CloudifyContext({})
         self.assertEqual(constants.DEPLOYMENT, ctx.type)