X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=n2vc%2Fn2vc_juju_conn.py;h=55220d64ab389f178fd4ac13dea63a5809f88b49;hb=HEAD;hp=66a88db0437bfa3e4421fe590cb10695cb5f626f;hpb=2c3c146360fe5ce949a81e0e55e0e62e7f805d0b;p=osm%2FN2VC.git

diff --git a/n2vc/n2vc_juju_conn.py b/n2vc/n2vc_juju_conn.py
index 66a88db..f28a9bd 100644
--- a/n2vc/n2vc_juju_conn.py
+++ b/n2vc/n2vc_juju_conn.py
@@ -37,7 +37,7 @@ from n2vc.exceptions import (
 )
 from n2vc.n2vc_conn import N2VCConnector
 from n2vc.n2vc_conn import obj_to_dict, obj_to_yaml
-from n2vc.libjuju import Libjuju
+from n2vc.libjuju import Libjuju, retry_callback
 from n2vc.store import MotorStore
 from n2vc.utils import get_ee_id_components, generate_random_alfanum_string
 from n2vc.vca.connection import get_connection
@@ -355,7 +355,13 @@ class N2VCJujuConnector(N2VCConnector):
 
     # In case of native_charm is being deployed, if JujuApplicationExists error happens
     # it will try to add_unit
-    @retry(attempts=3, delay=5, retry_exceptions=(N2VCApplicationExists,), timeout=None)
+    @retry(
+        attempts=3,
+        delay=5,
+        retry_exceptions=(N2VCApplicationExists,),
+        timeout=None,
+        callback=retry_callback,
+    )
     async def install_configuration_sw(
         self,
         ee_id: str,
@@ -830,6 +836,7 @@ class N2VCJujuConnector(N2VCConnector):
         scaling_in: bool = False,
         vca_type: str = None,
         vca_id: str = None,
+        application_to_delete: str = None,
     ):
         """
         Delete an execution environment
@@ -839,10 +846,11 @@ class N2VCJujuConnector(N2VCConnector):
                             {collection: <str>, filter: {},  path: <str>},
                             e.g. {collection: "nsrs", filter:
                                 {_id: <nsd-id>, path: "_admin.deployed.VCA.3"}
-        :param: total_timeout: Total timeout
-        :param: scaling_in: Boolean to indicate if it is a scaling in operation
-        :param: vca_type: VCA type
-        :param: vca_id: VCA ID
+        :param total_timeout: Total timeout
+        :param scaling_in: Boolean to indicate if it is a scaling in operation
+        :param vca_type: VCA type
+        :param vca_id: VCA ID
+        :param application_to_delete: name of the single application to be deleted
         """
         self.log.info("Deleting execution environment ee_id={}".format(ee_id))
         libjuju = await self._get_libjuju(vca_id)
@@ -857,7 +865,26 @@ class N2VCJujuConnector(N2VCConnector):
             ee_id=ee_id
         )
         try:
-            if not scaling_in:
+            if application_to_delete == application_name:
+                # destroy the application
+                await libjuju.destroy_application(
+                    model_name=model_name,
+                    application_name=application_name,
+                    total_timeout=total_timeout,
+                )
+                # if model is empty delete it
+                controller = await libjuju.get_controller()
+                model = await libjuju.get_model(
+                    controller=controller,
+                    model_name=model_name,
+                )
+                if not model.applications:
+                    self.log.info("Model {} is empty, deleting it".format(model_name))
+                    await libjuju.destroy_model(
+                        model_name=model_name,
+                        total_timeout=total_timeout,
+                    )
+            elif not scaling_in:
                 # destroy the model
                 await libjuju.destroy_model(
                     model_name=model_name, total_timeout=total_timeout