SIENTIAPDE-988

Refactor ingestor lease management and update Docker configurations

- Updated CMD in Dockerfile to use the correct application entry point.
- Added docker compose command to remove volumes in README.
- Removed unnecessary restart policy from ingestor service in docker-compose.yaml.
- Refactored manage_leases method in Ingestor class to improve clarity and parameter naming.
- Added get_number_of_leases method in IngestorManager to retrieve active leases.
- Implemented get_all_leases method in ResourceManager to fetch active leases from Redis.
- Enhanced unit tests for lease management in test_ingestor_manager and test_resource_manager.

tests/unit/managers/test_ingestor_manager.py

@@ -183,6 +183,22 @@ def test_get_active_ingestors_empty(ingestor_manager):
     ingestor_manager.resource_manager.get_all_ingestors.assert_called_once()
 
 
+def test_get_number_of_leases_success(ingestor_manager):
+    ingestor_manager.resource_manager.get_all_leases = MagicMock(
+        return_value=["lease1", "lease2"])
+    result = ingestor_manager.get_number_of_leases()
+    assert result == 2
+    ingestor_manager.resource_manager.get_all_leases.assert_called_once()
+
+
+def test_get_number_of_leases_empty(ingestor_manager):
+    ingestor_manager.resource_manager.get_all_leases = MagicMock(
+        return_value=None)
+    result = ingestor_manager.get_number_of_leases()
+    assert result == 0
+    ingestor_manager.resource_manager.get_all_leases.assert_called_once()
+
+
 def test_get_number_of_slots_success(ingestor_manager):
     ingestor_manager.resource_manager.get_all_slots = MagicMock(
         return_value=["slot1", "slot2"])