feat(sdk): support volume mount in tune API

sdk/python/v1beta1/kubeflow/katib/api/katib_client.py

@@ -16,7 +16,7 @@
 import logging
 import multiprocessing
 import time
-from typing import Any, Callable, Dict, List, Optional, Union
+from typing import Any, Callable, Dict, List, Optional, Union, TypedDict
 
 import grpc
 import kubeflow.katib.katib_api_pb2 as katib_api_pb2
@@ -30,6 +30,10 @@
 
 logger = logging.getLogger(__name__)
 
+TuneStoragePerTrialType = TypedDict(
+    "TuneStoragePerTrial",
+    {"volume": client.V1Volume, "mount_path": str},
+)
 
 class KatibClient(object):
     def __init__(
@@ -186,6 +190,7 @@ def tune(
         env_per_trial: Optional[
             Union[Dict[str, str], List[Union[client.V1EnvVar, client.V1EnvFromSource]]]
         ] = None,
+        storage_per_trial: Optional[Dict[str, TuneStoragePerTrialType]] = None,
         algorithm_name: str = "random",
         algorithm_settings: Union[
             dict, List[models.V1beta1AlgorithmSetting], None
@@ -468,6 +473,19 @@ class name in this argument.
                             f"Incorrect value for env_per_trial: {env_per_trial}"
                         )
 
+            volumes: List[client.V1Volume] = []
+            volume_mounts: List[client.V1VolumeMount] = []
+            if storage_per_trial:
+                for name, storage in storage_per_trial.items():
+                    volumes.append(storage["volume"])
+                    volume_mounts.append(
+                        client.V1VolumeMount(name=name, mount_path=storage["mount_path"]),
+                    )
+                print('='*100)
+                print("volumes", volumes)
+                print("volume_mounts", volume_mounts)
+                print('='*100)
+
             # Create Trial specification.
             trial_spec = client.V1Job(
                 api_version="batch/v1",
@@ -488,8 +506,10 @@ class name in this argument.
                                     env=env if env else None,
                                     env_from=env_from if env_from else None,
                                     resources=resources_per_trial,
+                                    volume_mounts=volume_mounts if volume_mounts else None,
                                 )
                             ],
+                            volumes=volumes if volumes else None,
                         ),
                     )
                 ),
@@ -576,7 +596,7 @@ class name in this argument.
                         f"It must also start and end with an alphanumeric character."
                     )
                 elif hasattr(e, "status") and e.status == 409:
-                    print(f"PVC '{name}' already exists in namespace " f"{namespace}.")
+                    print(f"PVC '{name}' already exists in namespace {namespace}.")
                 else:
                     raise RuntimeError(f"failed to create PVC. Error: {e}")