Bug 2067 fixed
[osm/N2VC.git] / n2vc / k8s_helm_base_conn.py
index 5079dbe..dd2116c 100644 (file)
@@ -175,15 +175,6 @@ class K8sHelmBaseConnector(K8sConnector):
         # sync local dir
         self.fs.sync(from_path=cluster_uuid)
 
-        # helm repo update
-        command = "env KUBECONFIG={} {} repo update".format(
-            paths["kube_config"], self._helm_command
-        )
-        self.log.debug("updating repo: {}".format(command))
-        await self._local_async_exec(
-            command=command, raise_exception_on_error=False, env=env
-        )
-
         # helm repo add name url
         command = ("env KUBECONFIG={} {} repo add {} {}").format(
             paths["kube_config"], self._helm_command, name, url
@@ -191,7 +182,7 @@ class K8sHelmBaseConnector(K8sConnector):
 
         if cert:
             temp_cert_file = os.path.join(
-                self.fs.path, "{}/helmcerts/".format(cluster_id), "temp.crt"
+                self.fs.path, "{}/helmcerts/".format(cluster_uuid), "temp.crt"
             )
             os.makedirs(os.path.dirname(temp_cert_file), exist_ok=True)
             with open(temp_cert_file, "w") as the_cert:
@@ -209,6 +200,40 @@ class K8sHelmBaseConnector(K8sConnector):
             command=command, raise_exception_on_error=True, env=env
         )
 
+        # helm repo update
+        command = "env KUBECONFIG={} {} repo update {}".format(
+            paths["kube_config"], self._helm_command, name
+        )
+        self.log.debug("updating repo: {}".format(command))
+        await self._local_async_exec(
+            command=command, raise_exception_on_error=False, env=env
+        )
+
+        # sync fs
+        self.fs.reverse_sync(from_path=cluster_uuid)
+
+    async def repo_update(self, cluster_uuid: str, name: str, repo_type: str = "chart"):
+        self.log.debug(
+            "Cluster {}, updating {} repository {}".format(
+                cluster_uuid, repo_type, name
+            )
+        )
+
+        # init_env
+        paths, env = self._init_paths_env(
+            cluster_name=cluster_uuid, create_if_not_exist=True
+        )
+
+        # sync local dir
+        self.fs.sync(from_path=cluster_uuid)
+
+        # helm repo update
+        command = "{} repo update {}".format(self._helm_command, name)
+        self.log.debug("updating repo: {}".format(command))
+        await self._local_async_exec(
+            command=command, raise_exception_on_error=False, env=env
+        )
+
         # sync fs
         self.fs.reverse_sync(from_path=cluster_uuid)
 
@@ -346,6 +371,9 @@ class K8sHelmBaseConnector(K8sConnector):
 
         return True
 
+    def _is_helm_chart_a_file(self, chart_name: str):
+        return chart_name.count("/") > 1
+
     async def _install_impl(
         self,
         cluster_id: str,
@@ -373,6 +401,10 @@ class K8sHelmBaseConnector(K8sConnector):
         # version
         kdu_model, version = self._split_version(kdu_model)
 
+        repo = self._split_repo(kdu_model)
+        if repo:
+            self.repo_update(cluster_id, repo)
+
         command = self._get_install_command(
             kdu_model,
             kdu_instance,
@@ -476,6 +508,10 @@ class K8sHelmBaseConnector(K8sConnector):
         # version
         kdu_model, version = self._split_version(kdu_model)
 
+        repo = self._split_repo(kdu_model)
+        if repo:
+            self.repo_update(cluster_uuid, repo)
+
         command = self._get_upgrade_command(
             kdu_model,
             kdu_instance,
@@ -609,10 +645,6 @@ class K8sHelmBaseConnector(K8sConnector):
         kdu_model, version = self._split_version(kdu_model)
 
         repo_url = await self._find_repo(kdu_model, cluster_uuid)
-        if not repo_url:
-            raise K8sException(
-                "Repository not found for kdu_model {}".format(kdu_model)
-            )
 
         _, replica_str = await self._get_replica_count_url(
             kdu_model, repo_url, resource_name
@@ -699,7 +731,7 @@ class K8sHelmBaseConnector(K8sConnector):
             cluster_uuid: The UUID of the cluster
             resource_name: Resource name
             kdu_instance: KDU instance name
-            kdu_model: The name or path of a bundle
+            kdu_model: The name or path of an Helm Chart
             kwargs: Additional parameters
 
         Returns:
@@ -721,19 +753,19 @@ class K8sHelmBaseConnector(K8sConnector):
         )
 
         replicas = await self._get_replica_count_instance(
-            kdu_instance, instance_info["namespace"], paths["kube_config"]
+            kdu_instance=kdu_instance,
+            namespace=instance_info["namespace"],
+            kubeconfig=paths["kube_config"],
+            resource_name=resource_name,
         )
 
         # Get default value if scale count is not found from provided values
         if not replicas:
-            repo_url = await self._find_repo(kdu_model, cluster_uuid)
-            if not repo_url:
-                raise K8sException(
-                    "Repository not found for kdu_model {}".format(kdu_model)
-                )
-
+            repo_url = await self._find_repo(
+                kdu_model=kdu_model, cluster_uuid=cluster_uuid
+            )
             replicas, _ = await self._get_replica_count_url(
-                kdu_model, repo_url, resource_name
+                kdu_model=kdu_model, repo_url=repo_url, resource_name=resource_name
             )
 
         if not replicas:
@@ -905,6 +937,28 @@ class K8sHelmBaseConnector(K8sConnector):
         self.log.debug("Instance {} not found".format(kdu_instance))
         return None
 
+    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 Helm do not support charm upgrade")
+
     async def exec_primitive(
         self,
         cluster_uuid: str = None,
@@ -1077,6 +1131,15 @@ class K8sHelmBaseConnector(K8sConnector):
         )
 
     async def values_kdu(self, kdu_model: str, repo_url: str = None) -> str:
+        """Method to obtain the Helm Chart package's values
+
+        Args:
+            kdu_model: The name or path of an Helm Chart
+            repo_url: Helm Chart repository url
+
+        Returns:
+            str: the values of the Helm Chart package
+        """
 
         self.log.debug(
             "inspect kdu_model values {} from (optional) repo: {}".format(
@@ -1297,8 +1360,17 @@ class K8sHelmBaseConnector(K8sConnector):
     def _get_inspect_command(
         self, show_command: str, kdu_model: str, repo_str: str, version: str
     ):
-        """
-        Obtain command to be executed to obtain information about the kdu
+        """Generates the command to obtain the information about an Helm Chart package
+            (´helm show ...´ command)
+
+        Args:
+            show_command: the second part of the command (`helm show <show_command>`)
+            kdu_model: The name or path of an Helm Chart
+            repo_url: Helm Chart repository url
+            version: constraint with specific version of the Chart to use
+
+        Returns:
+            str: the generated Helm Chart command
         """
 
     @abc.abstractmethod
@@ -1626,7 +1698,16 @@ class K8sHelmBaseConnector(K8sConnector):
     async def _exec_inspect_command(
         self, inspect_command: str, kdu_model: str, repo_url: str = None
     ):
-        """Obtains information about a kdu, no cluster (no env)."""
+        """Obtains information about an Helm Chart package (´helm show´ command)
+
+        Args:
+            inspect_command: the Helm sub command (`helm show <inspect_command> ...`)
+            kdu_model: The name or path of an Helm Chart
+            repo_url: Helm Chart repository url
+
+        Returns:
+            str: the requested info about the Helm Chart package
+        """
 
         repo_str = ""
         if repo_url:
@@ -1654,13 +1735,13 @@ class K8sHelmBaseConnector(K8sConnector):
     async def _get_replica_count_url(
         self,
         kdu_model: str,
-        repo_url: str,
+        repo_url: str = None,
         resource_name: str = None,
     ):
         """Get the replica count value in the Helm Chart Values.
 
         Args:
-            kdu_model: The name or path of a bundle
+            kdu_model: The name or path of an Helm Chart
             repo_url: Helm Chart repository url
             resource_name: Resource name
 
@@ -1669,7 +1750,8 @@ class K8sHelmBaseConnector(K8sConnector):
         """
 
         kdu_values = yaml.load(
-            await self.values_kdu(kdu_model, repo_url), Loader=yaml.SafeLoader
+            await self.values_kdu(kdu_model=kdu_model, repo_url=repo_url),
+            Loader=yaml.SafeLoader,
         )
 
         if not kdu_values:
@@ -1833,7 +1915,7 @@ class K8sHelmBaseConnector(K8sConnector):
             for key in params:
                 value = params.get(key)
                 if "!!yaml" in str(value):
-                    value = yaml.load(value[7:])
+                    value = yaml.safe_load(value[7:])
                 params2[key] = value
 
             values_file = get_random_number() + ".yaml"
@@ -1899,14 +1981,31 @@ class K8sHelmBaseConnector(K8sConnector):
 
     def _split_version(self, kdu_model: str) -> (str, str):
         version = None
-        if ":" in kdu_model:
+        if not self._is_helm_chart_a_file(kdu_model) and ":" in kdu_model:
             parts = kdu_model.split(sep=":")
             if len(parts) == 2:
                 version = str(parts[1])
                 kdu_model = parts[0]
         return kdu_model, version
 
+    async def _split_repo(self, kdu_model: str) -> str:
+        repo_name = None
+        idx = kdu_model.find("/")
+        if idx >= 0:
+            repo_name = kdu_model[:idx]
+        return repo_name
+
     async def _find_repo(self, kdu_model: str, cluster_uuid: str) -> str:
+        """Obtain the Helm repository for an Helm Chart
+
+        Args:
+            kdu_model (str): the KDU model associated with the Helm Chart instantiation
+            cluster_uuid (str): The cluster UUID associated with the Helm Chart instantiation
+
+        Returns:
+            str: the repository URL; if Helm Chart is a local one, the function returns None
+        """
+
         repo_url = None
         idx = kdu_model.find("/")
         if idx >= 0: