Feature-9904: Enhancing NG-UI to enable Juju operational view dashboard
[osm/N2VC.git] / n2vc / libjuju.py
index a6c1c42..0fb82e7 100644 (file)
@@ -32,6 +32,7 @@ from juju.controller import Controller
 from juju.client import client
 from juju import tag
 
+from n2vc.config import ModelConfig
 from n2vc.juju_watcher import JujuModelWatcher
 from n2vc.provisioner import AsyncSSHProvisioner
 from n2vc.n2vc_conn import N2VCConnector
@@ -40,10 +41,10 @@ from n2vc.exceptions import (
     JujuApplicationNotFound,
     JujuLeaderUnitNotFound,
     JujuActionNotFound,
-    JujuModelAlreadyExists,
     JujuControllerFailedConnecting,
     JujuApplicationExists,
     JujuInvalidK8sConfiguration,
+    JujuError
 )
 from n2vc.utils import DB_DATA
 from osm_common.dbbase import DbException
@@ -64,8 +65,7 @@ class Libjuju:
         log: logging.Logger = None,
         db: dict = None,
         n2vc: N2VCConnector = None,
-        apt_mirror: str = None,
-        enable_os_upgrade: bool = True,
+        model_config: ModelConfig = {},
     ):
         """
         Constructor
@@ -100,16 +100,11 @@ class Libjuju:
         self.n2vc = n2vc
 
         # Generate config for models
-        self.model_config = {}
-        if apt_mirror:
-            self.model_config["apt-mirror"] = apt_mirror
-        self.model_config["enable-os-refresh-update"] = enable_os_upgrade
-        self.model_config["enable-os-upgrade"] = enable_os_upgrade
+        self.model_config = model_config
 
         self.loop.set_exception_handler(self.handle_exception)
         self.creating_model = asyncio.Lock(loop=self.loop)
 
-        self.models = set()
         self.log.debug("Libjuju initialized!")
 
         self.health_check_task = self._create_health_check_task()
@@ -117,7 +112,7 @@ class Libjuju:
     def _create_health_check_task(self):
         return self.loop.create_task(self.health_check())
 
-    async def get_controller(self, timeout: float = 5.0) -> Controller:
+    async def get_controller(self, timeout: float = 15.0) -> Controller:
         """
         Get controller
 
@@ -187,22 +182,14 @@ class Libjuju:
         controller = await self.get_controller()
         model = None
         try:
-            # Raise exception if model already exists
-            if await self.model_exists(model_name, controller=controller):
-                raise JujuModelAlreadyExists(
-                    "Model {} already exists.".format(model_name)
-                )
-
             # Block until other workers have finished model creation
             while self.creating_model.locked():
                 await asyncio.sleep(0.1)
 
-            # If the model exists, return it from the controller
-            if model_name in self.models:
-                return
-
             # Create the model
             async with self.creating_model:
+                if await self.model_exists(model_name, controller=controller):
+                    return
                 self.log.debug("Creating model {}".format(model_name))
                 model = await controller.add_model(
                     model_name,
@@ -210,12 +197,73 @@ class Libjuju:
                     cloud_name=cloud_name,
                     credential_name=credential_name or cloud_name,
                 )
-                self.models.add(model_name)
         finally:
             if model:
                 await self.disconnect_model(model)
             await self.disconnect_controller(controller)
 
+    async def get_executed_actions(self, model_name: str) -> list:
+        """
+        Get executed/history of actions for a model.
+
+        :param: model_name: Model name, str.
+        :return: List of executed actions for a model.
+        """
+        model = None
+        executed_actions = []
+        controller = await self.get_controller()
+        try:
+            model = await self.get_model(controller, model_name)
+            # Get all unique action names
+            actions = {}
+            for application in model.applications:
+                application_actions = await self.get_actions(application, model_name)
+                actions.update(application_actions)
+            # Get status of all actions
+            for application_action in actions:
+                app_action_status_list = await model.get_action_status(name=application_action)
+                for action_id, action_status in app_action_status_list.items():
+                    executed_action = {"id": action_id, "action": application_action,
+                                       "status": action_status}
+                    # Get action output by id
+                    action_status = await model.get_action_output(executed_action["id"])
+                    for k, v in action_status.items():
+                        executed_action[k] = v
+                    executed_actions.append(executed_action)
+        except Exception as e:
+            raise JujuError("Error in getting executed actions for model: {}. Error: {}"
+                            .format(model_name, str(e)))
+        finally:
+            if model:
+                await self.disconnect_model(model)
+            await self.disconnect_controller(controller)
+        return executed_actions
+
+    async def get_application_configs(self, model_name: str, application_name: str) -> dict:
+        """
+        Get available configs for an application.
+
+        :param: model_name: Model name, str.
+        :param: application_name: Application name, str.
+
+        :return: A dict which has key - action name, value - action description
+        """
+        model = None
+        application_configs = {}
+        controller = await self.get_controller()
+        try:
+            model = await self.get_model(controller, model_name)
+            application = self._get_application(model, application_name=application_name)
+            application_configs = await application.get_config()
+        except Exception as e:
+            raise JujuError("Error in getting configs for application: {} in model: {}. Error: {}"
+                            .format(application_name, model_name, str(e)))
+        finally:
+            if model:
+                await self.disconnect_model(model)
+            await self.disconnect_controller(controller)
+        return application_configs
+
     async def get_model(
         self, controller: Controller, model_name: str, id=None
     ) -> Model:
@@ -854,8 +902,12 @@ class Libjuju:
         """
 
         controller = await self.get_controller()
-        model = await self.get_model(controller, model_name)
+        model = None
         try:
+            if not await self.model_exists(model_name, controller=controller):
+                return
+
+            model = await self.get_model(controller, model_name)
             self.log.debug("Destroying model {}".format(model_name))
             uuid = model.info.uuid
 
@@ -866,10 +918,6 @@ class Libjuju:
             # Disconnect model
             await self.disconnect_model(model)
 
-            # Destroy model
-            if model_name in self.models:
-                self.models.remove(model_name)
-
             await controller.destroy_model(uuid, force=True, max_wait=0)
 
             # Wait until model is destroyed
@@ -889,6 +937,10 @@ class Libjuju:
             raise Exception(
                 "Timeout waiting for model {} to be destroyed".format(model_name)
             )
+        except Exception as e:
+            if model:
+                await self.disconnect_model(model)
+            raise e
         finally:
             await self.disconnect_controller(controller)