feat: disable opamp by flag

initializer/components.py

@@ -20,7 +20,7 @@
 # This is necessary because the user application's dependencies may be incompatible with those used by the agent.
 reorder_python_path()
 
-from opamp.http_client import OpAMPHTTPClient
+from opamp.http_client import OpAMPHTTPClient, MockOpAMPClient
 
 
 MINIMUM_PYTHON_SUPPORTED_VERSION = (3, 8)
@@ -107,6 +107,10 @@ def initialize_logging_if_enabled(log_exporters, resource):
 
 
 def start_opamp_client(event):
+
+    if os.getenv('DISABLE_OPAMP_CLIENT', 'false').strip().lower() == 'true':
+        return MockOpAMPClient(event)
+
     condition = threading.Condition(threading.Lock())
     client = OpAMPHTTPClient(event, condition)
 

opamp/http_client.py

@@ -276,4 +276,16 @@ def update_remote_config_status(self, server_to_agent: opamp_pb2.ServerToAgent)
             self.remote_config_status = remote_config_status
             return True
 
-        return False        
+        return False
+
+
+# Mock client class for non-OpAMP installations
+# This class simulates the OpAMP client when the OpAMP server is not available.
+# To activate it, set the environment variable DISABLE_OPAMP_CLIENT to true.
+class MockOpAMPClient:
+    def __init__(self, event, *args, **kwargs):
+        self.resource_attributes = {'odigos.opamp': 'disabled'}
+        event.set()
+
+    def shutdown(self, custom_failure_message=None):
+        pass