feat(governance): dynamic OpenMetadata registration with domains, owners, tiers, and certification (zero hardcoding)

dags/helpers/ge_lakehouse_operator.py

@@ -352,9 +352,17 @@ class GreatExpectationsLakehouseOperator(BaseLakehouseOperator):
         
         try:
             # Login to get token
+            om_user = os.getenv("OPENMETADATA_USERNAME", "admin@open-metadata.org")
+            om_pass = os.getenv("OPENMETADATA_PASSWORD", "admin")
+            if om_pass == "admin":
+                b64_pass = "YWRtaW4="
+            else:
+                import base64
+                b64_pass = base64.b64encode(om_pass.encode("utf-8")).decode("utf-8")
+
             login_req = urllib.request.Request(
                 f"{om_host}/api/v1/users/login",
-                data=json.dumps({"email": "admin@open-metadata.org", "password": "YWRtaW4="}).encode("utf-8"),
+                data=json.dumps({"email": om_user, "password": b64_pass}).encode("utf-8"),
                 headers={"Content-Type": "application/json"},
                 method="POST"
             )
@@ -364,7 +372,8 @@ class GreatExpectationsLakehouseOperator(BaseLakehouseOperator):
             if not token:
                 return
 
-            fqn = f"dlh_airflow_service.{self.dag_id or 'lakehouse_pipeline'}.{self.task_id}"
+            pipeline_svc = os.getenv("OPENMETADATA_PIPELINE_SERVICE_NAME", "dlh_airflow_service")
+            fqn = f"{pipeline_svc}.{self.dag_id or 'lakehouse_pipeline'}.{self.task_id}"
             payload = {
                 "timestamp": int(time.time() * 1000),
                 "testCaseStatus": "Success" if summary["overall_success"] else "Failed",