Add a helper function to get MlflowCredentialContext by run_id (#8323)

Signed-off-by: Liang Zhang <liang.zhang@databricks.com>

mlflow/utils/databricks_utils.py

@@ -40,6 +40,15 @@ def wrapper(*args, **kwargs):
     return decorator
 
 
+def get_mlflow_credential_context_by_run_id(run_id):
+    from mlflow.tracking.artifact_utils import get_artifact_uri
+    from mlflow.utils.uri import get_databricks_profile_uri_from_artifact_uri
+
+    run_root_artifact_uri = get_artifact_uri(run_id=run_id)
+    profile = get_databricks_profile_uri_from_artifact_uri(run_root_artifact_uri)
+    return MlflowCredentialContext(profile)
+
+
 class MlflowCredentialContext:
     """Sets and clears credentials on a context using the provided profile URL."""
 

tests/utils/test_databricks_utils.py

@@ -6,6 +6,7 @@
 from mlflow.exceptions import MlflowException
 from mlflow.utils import databricks_utils
 from mlflow.utils.databricks_utils import (
+    get_mlflow_credential_context_by_run_id,
     get_workspace_info_from_dbutils,
     get_workspace_info_from_databricks_secrets,
     is_databricks_default_tracking_uri,
@@ -336,3 +337,18 @@ def test_is_running_in_ipython_environment_works(get_ipython):
 
         with mock.patch("IPython.get_ipython", return_value=get_ipython):
             assert is_running_in_ipython_environment() == (get_ipython is not None)
+
+
+def test_get_mlflow_credential_context_by_run_id():
+    with mock.patch(
+        "mlflow.tracking.artifact_utils.get_artifact_uri", return_value="dbfs:/path/to/artifact"
+    ) as mock_get_artifact_uri, mock.patch(
+        "mlflow.utils.uri.get_databricks_profile_uri_from_artifact_uri",
+        return_value="databricks://path/to/profile",
+    ) as mock_get_databricks_profile, mock.patch(
+        "mlflow.utils.databricks_utils.MlflowCredentialContext"
+    ) as mock_credential_context:
+        get_mlflow_credential_context_by_run_id(run_id="abc")
+        mock_get_artifact_uri.assert_called_once_with(run_id="abc")
+        mock_get_databricks_profile.assert_called_once_with("dbfs:/path/to/artifact")
+        mock_credential_context.assert_called_once_with("databricks://path/to/profile")