Sentry before send fallback

airflow/sentry.py

@@ -109,7 +109,7 @@ def __init__(self):
                         ", ".join(unsupported_options),
                     )
 
-                sentry_config_opts['before_send'] = conf.getimport('sentry', 'before_send')
+                sentry_config_opts['before_send'] = conf.getimport('sentry', 'before_send', fallback=None)
 
             if dsn:
                 sentry_sdk.init(dsn=dsn, integrations=integrations, **sentry_config_opts)

tests/core/test_sentry.py

@@ -106,6 +106,19 @@ def sentry(self):
 
         importlib.reload(sentry)
 
+    @pytest.fixture
+    def sentry_minimum(self):
+        """
+        Minimum sentry config
+        """
+        with conf_vars({('sentry', 'sentry_on'): 'True'}):
+            from airflow import sentry
+
+            importlib.reload(sentry)
+            yield sentry.Sentry
+
+        importlib.reload(sentry)
+
     def test_add_tagging(self, sentry, task_instance):
         """
         Test adding tags.
@@ -135,3 +148,10 @@ def test_before_send(self, sentry_sdk, sentry):
         called = sentry_sdk.call_args[1]['before_send']
         expected = import_string('tests.core.test_sentry.before_send')
         assert called == expected
+
+    def test_before_send_minimum_config(self, sentry_sdk, sentry_minimum):
+        """
+        Test before_send doesn't raise an exception when not set
+        """
+        assert sentry_minimum
+        sentry_sdk.assert_called_once()