X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2FN2VC.git;a=blobdiff_plain;f=n2vc%2Fn2vc_juju_conn.py;h=313430d1baf541f3d97ac2c909985fc560c9b05a;hp=6e78c47f33b669f7ca243408f85f1db1c87d36f0;hb=a71d4a04c1e8ad3ffe1a129024e6dbc14d6d3bd5;hpb=b4e7f5c425df48f7e946d792184d1d1b44879fe9

diff --git a/n2vc/n2vc_juju_conn.py b/n2vc/n2vc_juju_conn.py
index 6e78c47..313430d 100644
--- a/n2vc/n2vc_juju_conn.py
+++ b/n2vc/n2vc_juju_conn.py
@@ -24,6 +24,7 @@ import asyncio
 import logging
 import os
 
+from n2vc.config import ModelConfig
 from n2vc.exceptions import (
     N2VCBadArgumentsException,
     N2VCException,
@@ -149,15 +150,7 @@ class N2VCJujuConnector(N2VCConnector):
             )
             self.api_proxy = None
 
-        if "enable_os_upgrade" in vca_config:
-            self.enable_os_upgrade = vca_config["enable_os_upgrade"]
-        else:
-            self.enable_os_upgrade = True
-
-        if "apt_mirror" in vca_config:
-            self.apt_mirror = vca_config["apt_mirror"]
-        else:
-            self.apt_mirror = None
+        model_config = ModelConfig(vca_config)
 
         self.cloud = vca_config.get('cloud')
         self.k8s_cloud = None
@@ -179,8 +172,6 @@ class N2VCJujuConnector(N2VCConnector):
         self.libjuju = Libjuju(
             endpoint=self.url,
             api_proxy=self.api_proxy,
-            enable_os_upgrade=self.enable_os_upgrade,
-            apt_mirror=self.apt_mirror,
             username=self.username,
             password=self.secret,
             cacert=self.ca_cert,
@@ -188,6 +179,7 @@ class N2VCJujuConnector(N2VCConnector):
             log=self.log,
             db=self.db,
             n2vc=self,
+            model_config=model_config,
         )
 
         # create juju pub key file in lcm container at
@@ -543,13 +535,14 @@ class N2VCJujuConnector(N2VCConnector):
 
         _, ns_id, _, _, _ = self._get_namespace_components(namespace=namespace)
         model_name = '{}-k8s'.format(ns_id)
-        cloud = cloud_name or self.k8s_cloud
-        credential = credential_name or cloud_name if cloud_name else self.k8s_cloud
-        await self.libjuju.add_model(
-            model_name,
-            cloud_name=cloud,
-            credential_name=credential
-        )
+        if not await self.libjuju.model_exists(model_name):
+            cloud = cloud_name or self.k8s_cloud
+            credential = credential_name or cloud_name if cloud_name else self.k8s_cloud
+            await self.libjuju.add_model(
+                model_name,
+                cloud_name=cloud,
+                credential_name=credential
+            )
         application_name = self._get_application_name(namespace)
 
         try:
@@ -762,7 +755,8 @@ class N2VCJujuConnector(N2VCConnector):
         self.log.info("Namespace {} deleted".format(namespace))
 
     async def delete_execution_environment(
-        self, ee_id: str, db_dict: dict = None, total_timeout: float = None
+        self, ee_id: str, db_dict: dict = None, total_timeout: float = None,
+            scaling_in: bool = False
     ):
         self.log.info("Deleting execution environment ee_id={}".format(ee_id))
 
@@ -775,12 +769,20 @@ class N2VCJujuConnector(N2VCConnector):
         model_name, application_name, _machine_id = self._get_ee_id_components(
             ee_id=ee_id
         )
-
-        # destroy the application
         try:
-            await self.libjuju.destroy_model(
-                model_name=model_name, total_timeout=total_timeout
-            )
+            if not scaling_in:
+                # destroy the model
+                # TODO: should this be removed?
+                await self.libjuju.destroy_model(
+                    model_name=model_name, total_timeout=total_timeout
+                )
+            else:
+                # get juju model and observer
+                controller = await self.libjuju.get_controller()
+                model = await self.libjuju.get_model(controller, model_name)
+                # destroy the application
+                await self.libjuju.destroy_application(
+                    model=model, application_name=application_name)
         except Exception as e:
             raise N2VCException(
                 message=(