Added migrations

modules/migrator.py

@@ -0,0 +1,22 @@
+from typing import Any, Mapping
+
+from libbot.sync import config_get
+from mongodb_migrations.cli import MigrationManager
+from mongodb_migrations.config import Configuration
+
+
+def migrate_database() -> None:
+    """Apply migrations from folder `migrations/` to the database"""
+    db_config: Mapping[str, Any] = config_get("database")
+
+    manager_config = Configuration(
+        {
+            "mongo_host": db_config["host"],
+            "mongo_port": db_config["port"],
+            "mongo_database": db_config["name"],
+            "mongo_username": db_config["user"],
+            "mongo_password": db_config["password"],
+        }
+    )
+    manager = MigrationManager(manager_config)
+    manager.run()