X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=n2vc%2Fk8s_juju_conn.py;h=6744015b5dfe80d5f7363459e36112b1eeff733c;hb=8070c3c8260010f052ee9fe546c85bed4aa6b2eb;hp=c27449bfcbbe551ba481a635c07c2da422778de3;hpb=a8980cc3f6508f2659dc4ba4fcbeed65ba3c8e95;p=osm%2FN2VC.git

diff --git a/n2vc/k8s_juju_conn.py b/n2vc/k8s_juju_conn.py
index c27449b..6744015 100644
--- a/n2vc/k8s_juju_conn.py
+++ b/n2vc/k8s_juju_conn.py
@@ -78,6 +78,7 @@ class K8sJujuConnector(K8sConnector):
         db_uri = EnvironConfig(prefixes=["OSMLCM_", "OSMMON_"]).get("database_uri")
         self._store = MotorStore(db_uri)
         self.loading_libjuju = asyncio.Lock(loop=self.loop)
+        self.uninstall_locks = {}
 
         self.log.debug("K8S Juju connector initialized")
         # TODO: Remove these commented lines:
@@ -507,18 +508,54 @@ class K8sJujuConnector(K8sConnector):
         """
 
         self.log.debug("[uninstall] Destroying model")
-        libjuju = await self._get_libjuju(kwargs.get("vca_id"))
 
-        await libjuju.destroy_model(kdu_instance, total_timeout=3600)
+        will_not_delete = False
+        if kdu_instance not in self.uninstall_locks:
+            self.uninstall_locks[kdu_instance] = asyncio.Lock(loop=self.loop)
+        delete_lock = self.uninstall_locks[kdu_instance]
+
+        while delete_lock.locked():
+            will_not_delete = True
+            await asyncio.sleep(0.1)
+
+        if will_not_delete:
+            self.log.info("Model {} deleted by another worker.".format(kdu_instance))
+            return True
 
-        # self.log.debug("[uninstall] Model destroyed and disconnecting")
-        # await controller.disconnect()
+        try:
+            async with delete_lock:
+                libjuju = await self._get_libjuju(kwargs.get("vca_id"))
+
+                await libjuju.destroy_model(kdu_instance, total_timeout=3600)
+        finally:
+            self.uninstall_locks.pop(kdu_instance)
 
+        self.log.debug(f"[uninstall] Model {kdu_instance} destroyed")
         return True
-        # TODO: Remove these commented lines
-        # if not self.authenticated:
-        #     self.log.debug("[uninstall] Connecting to controller")
-        #     await self.login(cluster_uuid)
+
+    async def upgrade_charm(
+        self,
+        ee_id: str = None,
+        path: str = None,
+        charm_id: str = None,
+        charm_type: str = None,
+        timeout: float = None,
+    ) -> str:
+        """This method upgrade charms in VNFs
+
+        Args:
+            ee_id:  Execution environment id
+            path:   Local path to the charm
+            charm_id:   charm-id
+            charm_type: Charm type can be lxc-proxy-charm, native-charm or k8s-proxy-charm
+            timeout: (Float)    Timeout for the ns update operation
+
+        Returns:
+            The output of the update operation if status equals to "completed"
+        """
+        raise K8sException(
+            "KDUs deployed with Juju Bundle do not support charm upgrade"
+        )
 
     async def exec_primitive(
         self,