Gerrit id-7270 Enhancing NBI to define APIs for metric collection
[osm/NBI.git] / osm_nbi / engine.py
index f186a4c..5e42858 100644 (file)
 # limitations under the License.
 
 import logging
+import yaml
 from osm_common import dbmongo, dbmemory, fslocal, msglocal, msgkafka, version as common_version
 from osm_common.dbbase import DbException
 from osm_common.fsbase import FsException
 from osm_common.msgbase import MsgException
 from http import HTTPStatus
+
+from authconn_keystone import AuthconnKeystone
 from base_topic import EngineException, versiontuple
 from admin_topics import UserTopic, ProjectTopic, VimAccountTopic, WimAccountTopic, SdnTopic
+from admin_topics import UserTopicAuth, ProjectTopicAuth, RoleTopicAuth
 from descriptor_topics import VnfdTopic, NsdTopic, PduTopic, NstTopic
 from instance_topics import NsrTopic, VnfrTopic, NsLcmOpTopic, NsiTopic, NsiLcmOpTopic
+from pmjobs_topics import PmJobsTopic
 from base64 import b64encode
-from os import urandom
+from os import urandom, path
 from threading import Lock
 
 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
-min_common_version = "0.1.8"
+min_common_version = "0.1.16"
 
 
 class Engine(object):
@@ -48,13 +53,16 @@ class Engine(object):
         "nsis": NsiTopic,
         "nsilcmops": NsiLcmOpTopic
         # [NEW_TOPIC]: add an entry here
+        # "pm_jobs": PmJobsTopic will be added manually because it needs other parameters
     }
 
     def __init__(self):
         self.db = None
         self.fs = None
         self.msg = None
+        self.auth = None
         self.config = None
+        self.operations = None
         self.logger = logging.getLogger("nbi.engine")
         self.map_topic = {}
         self.write_lock = None
@@ -98,12 +106,51 @@ class Engine(object):
                     self.msg.connect(config["message"])
                 else:
                     raise EngineException("Invalid configuration param '{}' at '[message]':'driver'".format(
-                        config["storage"]["driver"]))
+                        config["message"]["driver"]))
+            if not self.auth:
+                if config["authentication"]["backend"] == "keystone":
+                    self.auth = AuthconnKeystone(config["authentication"])
+            if not self.operations:
+                if "resources_to_operations" in config["rbac"]:
+                    resources_to_operations_file = config["rbac"]["resources_to_operations"]
+                else:
+                    possible_paths = (
+                        __file__[:__file__.rfind("engine.py")] + "resources_to_operations.yml",
+                        "./resources_to_operations.yml"
+                    )
+                    for config_file in possible_paths:
+                        if path.isfile(config_file):
+                            resources_to_operations_file = config_file
+                            break
+                    if not resources_to_operations_file:                        
+                        raise EngineException("Invalid permission configuration: resources_to_operations file missing")
+                
+                with open(resources_to_operations_file, 'r') as f:
+                    resources_to_operations = yaml.load(f)
+                
+                self.operations = []
+
+                for _, value in resources_to_operations["resources_to_operations"].items():
+                    if value not in self.operations:
+                        self.operations += value
+
+            if config["authentication"]["backend"] == "keystone":
+                self.map_from_topic_to_class["users"] = UserTopicAuth
+                self.map_from_topic_to_class["projects"] = ProjectTopicAuth
+                self.map_from_topic_to_class["roles"] = RoleTopicAuth
 
             self.write_lock = Lock()
             # create one class per topic
             for topic, topic_class in self.map_from_topic_to_class.items():
+                if self.auth and topic_class in (UserTopicAuth, ProjectTopicAuth):
+                    self.map_topic[topic] = topic_class(self.db, self.fs, self.msg, self.auth)
+                elif self.auth and topic_class == RoleTopicAuth:
+                    self.map_topic[topic] = topic_class(self.db, self.fs, self.msg, self.auth,
+                                                        self.operations)
+                else:
+                    self.map_topic[topic] = topic_class(self.db, self.fs, self.msg)
                 self.map_topic[topic] = topic_class(self.db, self.fs, self.msg)
+            self.map_topic["pm_jobs"] = PmJobsTopic(config["prometheus"].get("host"), config["prometheus"].get("port"))
         except (DbException, FsException, MsgException) as e:
             raise EngineException(str(e), http_code=e.http_code)
 
@@ -113,8 +160,8 @@ class Engine(object):
                 self.db.db_disconnect()
             if self.fs:
                 self.fs.fs_disconnect()
-            if self.fs:
-                self.fs.fs_disconnect()
+            if self.msg:
+                self.msg.disconnect()
             self.write_lock = None
         except (DbException, FsException, MsgException) as e:
             raise EngineException(str(e), http_code=e.http_code)
@@ -235,7 +282,22 @@ class Engine(object):
         with self.write_lock:
             return self.map_topic[topic].edit(session, _id, indata, kwargs, force)
 
-    def create_admin(self):
+    def create_admin_project(self):
+        """
+        Creates a new project 'admin' into database if database is empty. Useful for initialization.
+        :return: _id identity of the inserted data, or None
+        """
+
+        projects = self.db.get_one("projects", fail_on_empty=False, fail_on_more=False)
+        if projects:
+            return None
+        project_desc = {"name": "admin"}
+        fake_session = {"project_id": "admin", "username": "admin", "admin": True}
+        rollback_list = []
+        _id = self.map_topic["projects"].new(rollback_list, fake_session, project_desc, force=True)
+        return _id
+
+    def create_admin_user(self):
         """
         Creates a new user admin/admin into database if database is empty. Useful for initialization
         :return: _id identity of the inserted data, or None
@@ -250,6 +312,18 @@ class Engine(object):
         _id = self.map_topic["users"].new(roolback_list, fake_session, user_desc, force=True)
         return _id
 
+    def create_admin(self):
+        """
+        Creates new 'admin' user and project into database if database is empty. Useful for initialization.
+        :return: _id identity of the inserted data, or None
+        """
+        project_id = self.create_admin_project()
+        user_id = self.create_admin_user()
+        if not project_id and not user_id:
+            return None
+        else:
+            return {'project_id': project_id, 'user_id': user_id}
+
     def upgrade_db(self, current_version, target_version):
         if not target_version or current_version == target_version:
             return