Bug 2064 fixed

[osm/N2VC.git] / n2vc / k8s_helm3_conn.py

diff --git a/n2vc/k8s_helm3_conn.py b/n2vc/k8s_helm3_conn.py
index 4d8df93..74a8947 100644 (file)
--- a/n2vc/k8s_helm3_conn.py
+++ b/n2vc/k8s_helm3_conn.py
@@ -19,6 +19,7 @@
 # For those usages not covered by the Apache License, Version 2.0 please
 # contact with: nfvlabs@tid.es
 ##
+from typing import Union
 import os
 import yaml
 
@@ -83,7 +84,12 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
         """Install a helm chart
 
         :param cluster_uuid str: The UUID of the cluster to install to
-        :param kdu_model str: The name or path of a bundle to install
+        :param kdu_model str: chart/reference (string), which can be either
+            of these options:
+            - a name of chart available via the repos known by OSM
+              (e.g. stable/openldap, stable/openldap:1.2.4)
+            - a path to a packaged chart (e.g. mychart.tgz)
+            - a path to an unpacked chart directory or a URL (e.g. mychart)
         :param kdu_instance: Kdu instance name
         :param atomic bool: If set, waits until the model is active and resets
                             the cluster on failure.
@@ -97,24 +103,24 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
 
         :return: True if successful
         """
-        _, cluster_id = self._get_namespace_cluster_id(cluster_uuid)
-        self.log.debug("installing {} in cluster {}".format(kdu_model, cluster_id))
+
+        self.log.debug("installing {} in cluster {}".format(kdu_model, cluster_uuid))
 
         # sync local dir
-        self.fs.sync(from_path=cluster_id)
+        self.fs.sync(from_path=cluster_uuid)
 
         # init env, paths
         paths, env = self._init_paths_env(
-            cluster_name=cluster_id, create_if_not_exist=True
+            cluster_name=cluster_uuid, create_if_not_exist=True
         )
 
         # for helm3 if namespace does not exist must create it
         if namespace and namespace != "kube-system":
-            if not await self._namespace_exists(cluster_id, namespace):
+            if not await self._namespace_exists(cluster_uuid, namespace):
                 try:
-                    await self._create_namespace(cluster_id, namespace)
+                    await self._create_namespace(cluster_uuid, namespace)
                 except Exception as e:
-                    if not await self._namespace_exists(cluster_id, namespace):
+                    if not await self._namespace_exists(cluster_uuid, namespace):
                         err_msg = (
                             "namespace {} does not exist in cluster_id {} "
                             "error message: ".format(namespace, e)
@@ -123,7 +129,7 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
                         raise K8sException(err_msg)
 
         await self._install_impl(
-            cluster_id,
+            cluster_uuid,
             kdu_model,
             paths,
             env,
@@ -137,7 +143,7 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
         )
 
         # sync fs
-        self.fs.reverse_sync(from_path=cluster_id)
+        self.fs.reverse_sync(from_path=cluster_uuid)
 
         self.log.debug("Returning kdu_instance {}".format(kdu_instance))
         return True
@@ -314,12 +320,10 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
             if namespace not in namespaces:
                 await self._create_namespace(cluster_id, namespace)
 
-        # If default repo is not included add
-        cluster_uuid = "{}:{}".format(namespace, cluster_id)
-        repo_list = await self.repo_list(cluster_uuid)
+        repo_list = await self.repo_list(cluster_id)
         stable_repo = [repo for repo in repo_list if repo["name"] == "stable"]
         if not stable_repo and self._stable_repo_url:
-            await self.repo_add(cluster_uuid, "stable", self._stable_repo_url)
+            await self.repo_add(cluster_id, "stable", self._stable_repo_url)
 
         # Returns False as no software needs to be uninstalled
         return False
@@ -349,6 +353,19 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
     def _get_inspect_command(
         self, inspect_command: str, kdu_model: str, repo_str: str, version: str
     ):
+        """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
+        """
+
         inspect_command = "{} show {} {}{} {}".format(
             self._helm_command, inspect_command, kdu_model, repo_str, version
         )
@@ -369,9 +386,9 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
         cluster_id: str,
         kdu_instance: str,
         namespace: str = None,
+        yaml_format: bool = False,
         show_error_log: bool = False,
-        return_text: bool = False,
-    ):
+    ) -> Union[str, dict]:
 
         self.log.debug(
             "status of kdu_instance: {}, namespace: {} ".format(kdu_instance, namespace)
@@ -395,7 +412,7 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
             env=env,
         )
 
-        if return_text:
+        if yaml_format:
             return str(output)
 
         if rc != 0:
@@ -406,11 +423,18 @@ class K8sHelm3Connector(K8sHelmBaseConnector):
         # remove field 'notes' and manifest
         try:
             del data.get("info")["notes"]
-            del data["manifest"]
         except KeyError:
             pass
 
-        # unable to parse 'resources' as currently it is not included in helm3
+        # parse the manifest to a list of dictionaries
+        if "manifest" in data:
+            manifest_str = data.get("manifest")
+            manifest_docs = yaml.load_all(manifest_str, Loader=yaml.SafeLoader)
+
+            data["manifest"] = []
+            for doc in manifest_docs:
+                data["manifest"].append(doc)
+
         return data
 
     def _get_install_command(