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create_with_subnet.py
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create_with_subnet.py
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# Copyright 2022 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
#
# http://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.
# flake8: noqa
# This file is automatically generated. Please do not modify it directly.
# Find the relevant recipe file in the samples/recipes or samples/ingredients
# directory and apply your changes there.
# [START compute_template_create_with_subnet]
from __future__ import annotations
import sys
from typing import Any
from google.api_core.extended_operation import ExtendedOperation
from google.cloud import compute_v1
def wait_for_extended_operation(
operation: ExtendedOperation, verbose_name: str = "operation", timeout: int = 300
) -> Any:
"""
Waits for the extended (long-running) operation to complete.
If the operation is successful, it will return its result.
If the operation ends with an error, an exception will be raised.
If there were any warnings during the execution of the operation
they will be printed to sys.stderr.
Args:
operation: a long-running operation you want to wait on.
verbose_name: (optional) a more verbose name of the operation,
used only during error and warning reporting.
timeout: how long (in seconds) to wait for operation to finish.
If None, wait indefinitely.
Returns:
Whatever the operation.result() returns.
Raises:
This method will raise the exception received from `operation.exception()`
or RuntimeError if there is no exception set, but there is an `error_code`
set for the `operation`.
In case of an operation taking longer than `timeout` seconds to complete,
a `concurrent.futures.TimeoutError` will be raised.
"""
result = operation.result(timeout=timeout)
if operation.error_code:
print(
f"Error during {verbose_name}: [Code: {operation.error_code}]: {operation.error_message}",
file=sys.stderr,
flush=True,
)
print(f"Operation ID: {operation.name}", file=sys.stderr, flush=True)
raise operation.exception() or RuntimeError(operation.error_message)
if operation.warnings:
print(f"Warnings during {verbose_name}:\n", file=sys.stderr, flush=True)
for warning in operation.warnings:
print(f" - {warning.code}: {warning.message}", file=sys.stderr, flush=True)
return result
def create_template_with_subnet(
project_id: str, network: str, subnetwork: str, template_name: str
) -> compute_v1.InstanceTemplate:
"""
Create an instance template that uses a provided subnet.
Args:
project_id: project ID or project number of the Cloud project you use.
network: the network to be used in the new template. This value uses
the following format: "projects/{project}/global/networks/{network}"
subnetwork: the subnetwork to be used in the new template. This value
uses the following format: "projects/{project}/regions/{region}/subnetworks/{subnetwork}"
template_name: name of the new template to create.
Returns:
InstanceTemplate object that represents the new instance template.
"""
# The template describes the size and source image of the book disk to
# attach to the instance.
disk = compute_v1.AttachedDisk()
initialize_params = compute_v1.AttachedDiskInitializeParams()
initialize_params.source_image = (
"projects/debian-cloud/global/images/family/debian-11"
)
initialize_params.disk_size_gb = 250
disk.initialize_params = initialize_params
disk.auto_delete = True
disk.boot = True
template = compute_v1.InstanceTemplate()
template.name = template_name
template.properties = compute_v1.InstanceProperties()
template.properties.disks = [disk]
template.properties.machine_type = "e2-standard-4"
# The template connects the instance to the specified network and subnetwork.
network_interface = compute_v1.NetworkInterface()
network_interface.network = network
network_interface.subnetwork = subnetwork
template.properties.network_interfaces = [network_interface]
template_client = compute_v1.InstanceTemplatesClient()
operation = template_client.insert(
project=project_id, instance_template_resource=template
)
wait_for_extended_operation(operation, "instance template creation")
return template_client.get(project=project_id, instance_template=template_name)
# [END compute_template_create_with_subnet]