此示例会基于快照创建映像。
代码示例
Python
试用此示例之前，请按照《Compute Engine 快速入门：使用客户端库》中的 Python 设置说明进行操作。如需了解详情，请参阅 Compute Engine Python API 参考文档。
如需向 Compute Engine 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。
from __future__ import annotations
from collections.abc import Iterable
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_image_from_snapshot(
project_id: str,
source_snapshot_name: str,
image_name: str,
source_project_id: str | None = None,
guest_os_features: Iterable[str] | None = None,
storage_location: str | None = None,
) -> compute_v1.Image:
"""
Creates an image based on a snapshot.
Args:
project_id: project ID or project number of the Cloud project you want to place your new image in.
source_snapshot_name: name of the snapshot you want to use as a base of your image.
image_name: name of the image you want to create.
source_project_id: name of the project that hosts the source snapshot. If left unset, it's assumed to equal
the `project_id`.
guest_os_features: an iterable collection of guest features you want to enable for the bootable image.
Learn more about Guest OS features here:
https://cloud.google.com/compute/docs/images/create-delete-deprecate-private-images#guest-os-features
storage_location: the storage location of your image. For example, specify "us" to store the image in the
`us` multi-region, or "us-central1" to store it in the `us-central1` region. If you do not make a selection,
Compute Engine stores the image in the multi-region closest to your image's source location.
Returns:
An Image object.
"""
if source_project_id is None:
source_project_id = project_id
snapshot_client = compute_v1.SnapshotsClient()
image_client = compute_v1.ImagesClient()
src_snapshot = snapshot_client.get(
project=source_project_id, snapshot=source_snapshot_name
)
image = compute_v1.Image()
image.name = image_name
image.source_snapshot = src_snapshot.self_link
if storage_location:
image.storage_locations = [storage_location]
if guest_os_features:
image.guest_os_features = [
compute_v1.GuestOsFeature(type_=feature) for feature in guest_os_features
]
operation = image_client.insert(project=project_id, image_resource=image)
wait_for_extended_operation(operation, "image creation from snapshot")
return image_client.get(project=project_id, image=image_name)
后续步骤
如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。