# Copyright 2024 Google LLC

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# https://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

import os

from google.cloud.tpu_v2 import Node

def start_cloud_tpu(project_id: str, zone: str, tpu_name: str = "tpu-name") -> Node:

"""Start a TPU node.

Args:

project_id (str): The ID of Google Cloud project.

zone (str): The zone of the TPU node.

tpu_name (str): The name of the TPU node to start.

Returns:

Node: The started TPU node.

"""

# [START tpu_vm_start]

from google.cloud import tpu_v2

# TODO(developer): Update and un-comment below lines

# project_id = "your-project-id"

# zone = "us-central1-a"

# tpu_name = "tpu-name"

client = tpu_v2.TpuClient()

request = tpu_v2.StartNodeRequest(

name=f"projects/{project_id}/locations/{zone}/nodes/{tpu_name}",

)

try:

operation = client.start_node(request=request)

print("Waiting for start operation to complete...")

response = operation.result()

print(f"TPU {tpu_name} has been started")

print(response.state)

# Example response:

# State.READY

except Exception as e:

print(e)

raise e

# [END tpu_vm_start]

return response

if __name__ == "__main__":

PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")

ZONE = "us-central1-a"

start_cloud_tpu(PROJECT_ID, ZONE, "tpu-name")