CharmHub and new kafka and zookeeper charms
[osm/devops.git] / installers / charm / mon / tests / test_charm.py
index 010262f..e9748d3 100644 (file)
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2020 Canonical Ltd.
+# Copyright 2021 Canonical Ltd.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
 # osm-charmers@lists.launchpad.net
 ##
 
+import base64
+import sys
 from typing import NoReturn
 import unittest
-from ops.model import BlockedStatus
 
+from charm import MonCharm
+from ops.model import ActiveStatus, BlockedStatus
 from ops.testing import Harness
 
-from charm import MonCharm
+
+def encode(content: str):
+    return base64.b64encode(content.encode("ascii")).decode("utf-8")
+
+
+certificate_pem = encode(
+    """
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+"""
+)
 
 
 class TestCharm(unittest.TestCase):
-    """MON Charm unit tests."""
+    """Prometheus Charm unit tests."""
 
     def setUp(self) -> NoReturn:
         """Test setup"""
+        self.image_info = sys.modules["oci_image"].OCIImageResource().fetch()
         self.harness = Harness(MonCharm)
         self.harness.set_leader(is_leader=True)
         self.harness.begin()
+        self.config = {
+            "vca_host": "192.168.0.13",
+            "vca_user": "admin",
+            "vca_secret": "admin",
+            "vca_cacert": "cacert",
+            "database_commonkey": "commonkey",
+            "mongodb_uri": "",
+            "log_level": "INFO",
+            "openstack_default_granularity": 10,
+            "global_request_timeout": 10,
+            "collector_interval": 30,
+            "evaluator_interval": 30,
+            "keystone_enabled": True,
+            "certificates": f"cert1:{certificate_pem}",
+        }
+        self.harness.update_config(self.config)
 
-    def test_on_start_without_relations(self) -> NoReturn:
-        """Test installation without any relation."""
-        self.harness.charm.on.start.emit()
+    def test_config_changed_no_relations(
+        self,
+    ) -> NoReturn:
+        """Test ingress resources without HTTP."""
 
-        # Verifying status
-        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+        self.harness.charm.on.config_changed.emit()
 
-        # Verifying status message
-        self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+        # Assertions
+        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
         self.assertTrue(
-            self.harness.charm.unit.status.message.startswith("Waiting for ")
+            all(
+                relation in self.harness.charm.unit.status.message
+                for relation in ["mongodb", "kafka", "prometheus", "keystone"]
+            )
         )
-        self.assertIn("kafka", self.harness.charm.unit.status.message)
-        self.assertIn("mongodb", self.harness.charm.unit.status.message)
-        self.assertIn("prometheus", self.harness.charm.unit.status.message)
-        self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
-
-    def test_on_start_with_relations(self) -> NoReturn:
-        """Test deployment without keystone."""
-        expected_result = {
-            "version": 3,
-            "containers": [
-                {
-                    "name": "mon",
-                    "imageDetails": self.harness.charm.image.fetch(),
-                    "imagePullPolicy": "Always",
-                    "ports": [
-                        {
-                            "name": "mon",
-                            "containerPort": 8000,
-                            "protocol": "TCP",
-                        }
-                    ],
-                    "envConfig": {
-                        "ALLOW_ANONYMOUS_LOGIN": "yes",
-                        "OSMMON_OPENSTACK_DEFAULT_GRANULARITY": 300,
-                        "OSMMON_GLOBAL_REQUEST_TIMEOUT": 10,
-                        "OSMMON_GLOBAL_LOGLEVEL": "INFO",
-                        "OSMMON_COLLECTOR_INTERVAL": 30,
-                        "OSMMON_EVALUATOR_INTERVAL": 30,
-                        "OSMMON_MESSAGE_DRIVER": "kafka",
-                        "OSMMON_MESSAGE_HOST": "kafka",
-                        "OSMMON_MESSAGE_PORT": 9092,
-                        "OSMMON_DATABASE_DRIVER": "mongo",
-                        "OSMMON_DATABASE_URI": "mongodb://mongo:27017",
-                        "OSMMON_DATABASE_COMMONKEY": "osm",
-                        "OSMMON_PROMETHEUS_URL": "http://prometheus:9090",
-                        "OSMMON_VCA_HOST": "admin",
-                        "OSMMON_VCA_USER": "admin",
-                        "OSMMON_VCA_SECRET": "secret",
-                        "OSMMON_VCA_CACERT": "",
-                    },
-                }
-            ],
-            "kubernetesResources": {"ingressResources": []},
-        }
 
-        self.harness.charm.on.start.emit()
-
-        # Check if kafka datastore is initialized
-        self.assertIsNone(self.harness.charm.state.message_host)
-        self.assertIsNone(self.harness.charm.state.message_port)
+    def test_config_changed_non_leader(
+        self,
+    ) -> NoReturn:
+        """Test ingress resources without HTTP."""
+        self.harness.set_leader(is_leader=False)
+        self.harness.charm.on.config_changed.emit()
+
+        # Assertions
+        self.assertIsInstance(self.harness.charm.unit.status, ActiveStatus)
+
+    def test_with_relations_and_mongodb_config(
+        self,
+    ) -> NoReturn:
+        "Test with relations (internal)"
+        self.initialize_kafka_relation()
+        self.initialize_mongo_config()
+        self.initialize_prometheus_relation()
+        self.initialize_keystone_relation()
+        # Verifying status
+        self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
 
-        # Check if mongodb datastore is initialized
-        self.assertIsNone(self.harness.charm.state.database_uri)
+    def test_with_relations(
+        self,
+    ) -> NoReturn:
+        "Test with relations (internal)"
+        self.initialize_kafka_relation()
+        self.initialize_mongo_relation()
+        self.initialize_prometheus_relation()
+        self.initialize_keystone_relation()
+        # Verifying status
+        self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
 
-        # Check if prometheus datastore is initialized
-        self.assertIsNone(self.harness.charm.state.prometheus_host)
-        self.assertIsNone(self.harness.charm.state.prometheus_port)
+    def test_exception_mongodb_relation_and_config(
+        self,
+    ) -> NoReturn:
+        "Test with relations and config for mongodb. Must fail"
+        self.initialize_mongo_relation()
+        self.initialize_mongo_config()
+        # Verifying status
+        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
 
-        # Initializing the kafka relation
+    def initialize_kafka_relation(self):
         kafka_relation_id = self.harness.add_relation("kafka", "kafka")
         self.harness.add_relation_unit(kafka_relation_id, "kafka/0")
         self.harness.update_relation_data(
-            kafka_relation_id, "kafka/0", {"host": "kafka", "port": 9092}
+            kafka_relation_id, "kafka", {"host": "kafka", "port": 9092}
         )
 
-        # Initializing the mongo relation
+    def initialize_mongo_config(self):
+        self.harness.update_config({"mongodb_uri": "mongodb://mongo:27017"})
+
+    def initialize_mongo_relation(self):
         mongodb_relation_id = self.harness.add_relation("mongodb", "mongodb")
         self.harness.add_relation_unit(mongodb_relation_id, "mongodb/0")
         self.harness.update_relation_data(
@@ -124,118 +163,249 @@ class TestCharm(unittest.TestCase):
             {"connection_string": "mongodb://mongo:27017"},
         )
 
-        # Initializing the prometheus relation
+    def initialize_prometheus_relation(self):
         prometheus_relation_id = self.harness.add_relation("prometheus", "prometheus")
         self.harness.add_relation_unit(prometheus_relation_id, "prometheus/0")
         self.harness.update_relation_data(
             prometheus_relation_id,
-            "prometheus/0",
+            "prometheus",
             {"hostname": "prometheus", "port": 9090},
         )
 
-        # Checking if kafka data is stored
-        self.assertEqual(self.harness.charm.state.message_host, "kafka")
-        self.assertEqual(self.harness.charm.state.message_port, 9092)
-
-        # Checking if mongodb data is stored
-        self.assertEqual(self.harness.charm.state.database_uri, "mongodb://mongo:27017")
-
-        # Checking if prometheus data is stored
-        self.assertEqual(self.harness.charm.state.prometheus_host, "prometheus")
-        self.assertEqual(self.harness.charm.state.prometheus_port, 9090)
-
-        # Verifying status
-        self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
-
-        pod_spec, _ = self.harness.get_pod_spec()
-
-        self.assertDictEqual(expected_result, pod_spec)
-
-    def test_on_kafka_unit_relation_changed(self) -> NoReturn:
-        """Test to see if kafka relation is updated."""
-        self.harness.charm.on.start.emit()
-
-        self.assertIsNone(self.harness.charm.state.message_host)
-        self.assertIsNone(self.harness.charm.state.message_port)
-
-        relation_id = self.harness.add_relation("kafka", "kafka")
-        self.harness.add_relation_unit(relation_id, "kafka/0")
-        self.harness.update_relation_data(
-            relation_id, "kafka/0", {"host": "kafka", "port": 9092}
-        )
-
-        self.assertEqual(self.harness.charm.state.message_host, "kafka")
-        self.assertEqual(self.harness.charm.state.message_port, 9092)
-
-        # Verifying status
-        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
-
-        # Verifying status message
-        self.assertGreater(len(self.harness.charm.unit.status.message), 0)
-        self.assertTrue(
-            self.harness.charm.unit.status.message.startswith("Waiting for ")
-        )
-        self.assertNotIn("kafka", self.harness.charm.unit.status.message)
-        self.assertIn("mongodb", self.harness.charm.unit.status.message)
-        self.assertIn("prometheus", self.harness.charm.unit.status.message)
-        self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
-
-    def test_on_mongodb_unit_relation_changed(self) -> NoReturn:
-        """Test to see if mongodb relation is updated."""
-        self.harness.charm.on.start.emit()
-
-        self.assertIsNone(self.harness.charm.state.database_uri)
-
-        relation_id = self.harness.add_relation("mongodb", "mongodb")
-        self.harness.add_relation_unit(relation_id, "mongodb/0")
+    def initialize_keystone_relation(self):
+        keystone_relation_id = self.harness.add_relation("keystone", "keystone")
+        self.harness.add_relation_unit(keystone_relation_id, "keystone/0")
         self.harness.update_relation_data(
-            relation_id, "mongodb/0", {"connection_string": "mongodb://mongo:27017"}
+            keystone_relation_id,
+            "keystone",
+            {
+                "host": "host",
+                "port": 5000,
+                "user_domain_name": "ud",
+                "project_domain_name": "pd",
+                "username": "u",
+                "password": "p",
+                "service": "s",
+                "keystone_db_password": "something",
+                "region_id": "something",
+                "admin_username": "something",
+                "admin_password": "something",
+                "admin_project_name": "something",
+            },
         )
 
-        self.assertEqual(self.harness.charm.state.database_uri, "mongodb://mongo:27017")
-
-        # Verifying status
-        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
-
-        # Verifying status message
-        self.assertGreater(len(self.harness.charm.unit.status.message), 0)
-        self.assertTrue(
-            self.harness.charm.unit.status.message.startswith("Waiting for ")
-        )
-        self.assertIn("kafka", self.harness.charm.unit.status.message)
-        self.assertNotIn("mongodb", self.harness.charm.unit.status.message)
-        self.assertIn("prometheus", self.harness.charm.unit.status.message)
-        self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
 
-    def test_on_prometheus_unit_relation_changed(self) -> NoReturn:
-        """Test to see if prometheus relation is updated."""
-        self.harness.charm.on.start.emit()
-
-        self.assertIsNone(self.harness.charm.state.prometheus_host)
-        self.assertIsNone(self.harness.charm.state.prometheus_port)
-
-        relation_id = self.harness.add_relation("prometheus", "prometheus")
-        self.harness.add_relation_unit(relation_id, "prometheus/0")
-        self.harness.update_relation_data(
-            relation_id, "prometheus/0", {"hostname": "prometheus", "port": 9090}
-        )
-
-        self.assertEqual(self.harness.charm.state.prometheus_host, "prometheus")
-        self.assertEqual(self.harness.charm.state.prometheus_port, 9090)
-
-        # Verifying status
-        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+if __name__ == "__main__":
+    unittest.main()
 
-        # Verifying status message
-        self.assertGreater(len(self.harness.charm.unit.status.message), 0)
-        self.assertTrue(
-            self.harness.charm.unit.status.message.startswith("Waiting for ")
-        )
-        self.assertIn("kafka", self.harness.charm.unit.status.message)
-        self.assertIn("mongodb", self.harness.charm.unit.status.message)
-        self.assertNotIn("prometheus", self.harness.charm.unit.status.message)
-        self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
+
+# class TestCharm(unittest.TestCase):
+#     """MON Charm unit tests."""
+
+#     def setUp(self) -> NoReturn:
+#         """Test setup"""
+#         self.harness = Harness(MonCharm)
+#         self.harness.set_leader(is_leader=True)
+#         self.harness.begin()
+
+#     def test_on_start_without_relations(self) -> NoReturn:
+#         """Test installation without any relation."""
+#         self.harness.charm.on.start.emit()
+
+#         # Verifying status
+#         self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+#         # Verifying status message
+#         self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+#         self.assertTrue(
+#             self.harness.charm.unit.status.message.startswith("Waiting for ")
+#         )
+#         self.assertIn("kafka", self.harness.charm.unit.status.message)
+#         self.assertIn("mongodb", self.harness.charm.unit.status.message)
+#         self.assertIn("prometheus", self.harness.charm.unit.status.message)
+#         self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
+
+#     def test_on_start_with_relations(self) -> NoReturn:
+#         """Test deployment without keystone."""
+#         expected_result = {
+#             "version": 3,
+#             "containers": [
+#                 {
+#                     "name": "mon",
+#                     "imageDetails": self.harness.charm.image.fetch(),
+#                     "imagePullPolicy": "Always",
+#                     "ports": [
+#                         {
+#                             "name": "mon",
+#                             "containerPort": 8000,
+#                             "protocol": "TCP",
+#                         }
+#                     ],
+#                     "envConfig": {
+#                         "ALLOW_ANONYMOUS_LOGIN": "yes",
+#                         "OSMMON_OPENSTACK_DEFAULT_GRANULARITY": 300,
+#                         "OSMMON_GLOBAL_REQUEST_TIMEOUT": 10,
+#                         "OSMMON_GLOBAL_LOGLEVEL": "INFO",
+#                         "OSMMON_COLLECTOR_INTERVAL": 30,
+#                         "OSMMON_EVALUATOR_INTERVAL": 30,
+#                         "OSMMON_MESSAGE_DRIVER": "kafka",
+#                         "OSMMON_MESSAGE_HOST": "kafka",
+#                         "OSMMON_MESSAGE_PORT": 9092,
+#                         "OSMMON_DATABASE_DRIVER": "mongo",
+#                         "OSMMON_DATABASE_URI": "mongodb://mongo:27017",
+#                         "OSMMON_DATABASE_COMMONKEY": "osm",
+#                         "OSMMON_PROMETHEUS_URL": "http://prometheus:9090",
+#                         "OSMMON_VCA_HOST": "admin",
+#                         "OSMMON_VCA_USER": "admin",
+#                         "OSMMON_VCA_SECRET": "secret",
+#                         "OSMMON_VCA_CACERT": "",
+#                     },
+#                 }
+#             ],
+#             "kubernetesResources": {"ingressResources": []},
+#         }
+
+#         self.harness.charm.on.start.emit()
+
+#         # Check if kafka datastore is initialized
+#         self.assertIsNone(self.harness.charm.state.message_host)
+#         self.assertIsNone(self.harness.charm.state.message_port)
+
+#         # Check if mongodb datastore is initialized
+#         self.assertIsNone(self.harness.charm.state.database_uri)
+
+#         # Check if prometheus datastore is initialized
+#         self.assertIsNone(self.harness.charm.state.prometheus_host)
+#         self.assertIsNone(self.harness.charm.state.prometheus_port)
+
+#         # Initializing the kafka relation
+#         kafka_relation_id = self.harness.add_relation("kafka", "kafka")
+#         self.harness.add_relation_unit(kafka_relation_id, "kafka/0")
+#         self.harness.update_relation_data(
+#             kafka_relation_id, "kafka/0", {"host": "kafka", "port": 9092}
+#         )
+
+#         # Initializing the mongo relation
+#         mongodb_relation_id = self.harness.add_relation("mongodb", "mongodb")
+#         self.harness.add_relation_unit(mongodb_relation_id, "mongodb/0")
+#         self.harness.update_relation_data(
+#             mongodb_relation_id,
+#             "mongodb/0",
+#             {"connection_string": "mongodb://mongo:27017"},
+#         )
+
+#         # Initializing the prometheus relation
+#         prometheus_relation_id = self.harness.add_relation("prometheus", "prometheus")
+#         self.harness.add_relation_unit(prometheus_relation_id, "prometheus/0")
+#         self.harness.update_relation_data(
+#             prometheus_relation_id,
+#             "prometheus",
+#             {"hostname": "prometheus", "port": 9090},
+#         )
+
+#         # Checking if kafka data is stored
+#         self.assertEqual(self.harness.charm.state.message_host, "kafka")
+#         self.assertEqual(self.harness.charm.state.message_port, 9092)
+
+#         # Checking if mongodb data is stored
+#         self.assertEqual(self.harness.charm.state.database_uri, "mongodb://mongo:27017")
+
+#         # Checking if prometheus data is stored
+#         self.assertEqual(self.harness.charm.state.prometheus_host, "prometheus")
+#         self.assertEqual(self.harness.charm.state.prometheus_port, 9090)
+
+#         # Verifying status
+#         self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+#         pod_spec, _ = self.harness.get_pod_spec()
+
+#         self.assertDictEqual(expected_result, pod_spec)
+
+#     def test_on_kafka_unit_relation_changed(self) -> NoReturn:
+#         """Test to see if kafka relation is updated."""
+#         self.harness.charm.on.start.emit()
+
+#         self.assertIsNone(self.harness.charm.state.message_host)
+#         self.assertIsNone(self.harness.charm.state.message_port)
+
+#         relation_id = self.harness.add_relation("kafka", "kafka")
+#         self.harness.add_relation_unit(relation_id, "kafka/0")
+#         self.harness.update_relation_data(
+#             relation_id, "kafka/0", {"host": "kafka", "port": 9092}
+#         )
+
+#         self.assertEqual(self.harness.charm.state.message_host, "kafka")
+#         self.assertEqual(self.harness.charm.state.message_port, 9092)
+
+#         # Verifying status
+#         self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+#         # Verifying status message
+#         self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+#         self.assertTrue(
+#             self.harness.charm.unit.status.message.startswith("Waiting for ")
+#         )
+#         self.assertNotIn("kafka", self.harness.charm.unit.status.message)
+#         self.assertIn("mongodb", self.harness.charm.unit.status.message)
+#         self.assertIn("prometheus", self.harness.charm.unit.status.message)
+#         self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
+
+#     def test_on_mongodb_unit_relation_changed(self) -> NoReturn:
+#         """Test to see if mongodb relation is updated."""
+#         self.harness.charm.on.start.emit()
+
+#         self.assertIsNone(self.harness.charm.state.database_uri)
+
+#         relation_id = self.harness.add_relation("mongodb", "mongodb")
+#         self.harness.add_relation_unit(relation_id, "mongodb/0")
+#         self.harness.update_relation_data(
+#             relation_id, "mongodb/0", {"connection_string": "mongodb://mongo:27017"}
+#         )
+
+#         self.assertEqual(self.harness.charm.state.database_uri, "mongodb://mongo:27017")
+
+#         # Verifying status
+#         self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+#         # Verifying status message
+#         self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+#         self.assertTrue(
+#             self.harness.charm.unit.status.message.startswith("Waiting for ")
+#         )
+#         self.assertIn("kafka", self.harness.charm.unit.status.message)
+#         self.assertNotIn("mongodb", self.harness.charm.unit.status.message)
+#         self.assertIn("prometheus", self.harness.charm.unit.status.message)
+#         self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
+
+#     def test_on_prometheus_unit_relation_changed(self) -> NoReturn:
+#         """Test to see if prometheus relation is updated."""
+#         self.harness.charm.on.start.emit()
+
+#         self.assertIsNone(self.harness.charm.state.prometheus_host)
+#         self.assertIsNone(self.harness.charm.state.prometheus_port)
+
+#         relation_id = self.harness.add_relation("prometheus", "prometheus")
+#         self.harness.add_relation_unit(relation_id, "prometheus/0")
+#         self.harness.update_relation_data(
+#             relation_id, "prometheus", {"hostname": "prometheus", "port": 9090}
+#         )
+
+#         self.assertEqual(self.harness.charm.state.prometheus_host, "prometheus")
+#         self.assertEqual(self.harness.charm.state.prometheus_port, 9090)
+
+#         # Verifying status
+#         self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+#         # Verifying status message
+#         self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+#         self.assertTrue(
+#             self.harness.charm.unit.status.message.startswith("Waiting for ")
+#         )
+#         self.assertIn("kafka", self.harness.charm.unit.status.message)
+#         self.assertIn("mongodb", self.harness.charm.unit.status.message)
+#         self.assertNotIn("prometheus", self.harness.charm.unit.status.message)
+#         self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
 
 
-if __name__ == "__main__":
-    unittest.main()
+if __name__ == "__main__":
+    unittest.main()