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코드 샘플
Go
이 샘플을 사용해 보기 전에 Compute Engine 빠른 시작: 클라이언트 라이브러리 사용의 Go 설정 안내를 따르세요. 자세한 내용은 Compute Engine Go API 참조 문서를 확인하세요.
Compute Engine에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다. 자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
import (
"context"
"fmt"
"io"
compute "cloud.google.com/go/compute/apiv1"
computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
"google.golang.org/protobuf/proto"
)
// createTemplateFromInstance creates a new instance template based on an existing instance.
// This new template specifies a different boot disk.
func createTemplateFromInstance(w io.Writer, projectID, instance, templateName string) error {
// projectID := "your_project_id"
// instance := "projects/project/zones/zone/instances/instance"
// templateName := "your_template_name"
ctx := context.Background()
instanceTemplatesClient, err := compute.NewInstanceTemplatesRESTClient(ctx)
if err != nil {
return fmt.Errorf("NewInstanceTemplatesRESTClient: %w", err)
}
defer instanceTemplatesClient.Close()
req := &computepb.InsertInstanceTemplateRequest{
Project: projectID,
InstanceTemplateResource: &computepb.InstanceTemplate{
Name: proto.String(templateName),
SourceInstance: proto.String(instance),
SourceInstanceParams: &computepb.SourceInstanceParams{
DiskConfigs: []*computepb.DiskInstantiationConfig{
{
// Device name must match the name of a disk attached to the instance
// your template is based on.
DeviceName: proto.String("disk-1"),
// Replace the original boot disk image used in your instance with a Rocky Linux image.
InstantiateFrom: proto.String(computepb.DiskInstantiationConfig_CUSTOM_IMAGE.String()),
CustomImage: proto.String("projects/rocky-linux-cloud/global/images/family/rocky-linux-8"),
// Override the auto_delete setting.
AutoDelete: proto.Bool(true),
},
},
},
},
}
op, err := instanceTemplatesClient.Insert(ctx, req)
if err != nil {
return fmt.Errorf("unable to create instance template: %w", err)
}
if err = op.Wait(ctx); err != nil {
return fmt.Errorf("unable to wait for the operation: %w", err)
}
fmt.Fprintf(w, "Instance template created\n")
return nil
}
Java
이 샘플을 사용해 보기 전에 Compute Engine 빠른 시작: 클라이언트 라이브러리 사용의 Java 설정 안내를 따르세요. 자세한 내용은 Compute Engine Java API 참조 문서를 확인하세요.
Compute Engine에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다. 자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
import com.google.cloud.compute.v1.DiskInstantiationConfig;
import com.google.cloud.compute.v1.DiskInstantiationConfig.InstantiateFrom;
import com.google.cloud.compute.v1.GlobalOperationsClient;
import com.google.cloud.compute.v1.InsertInstanceTemplateRequest;
import com.google.cloud.compute.v1.InstanceTemplate;
import com.google.cloud.compute.v1.InstanceTemplatesClient;
import com.google.cloud.compute.v1.Operation;
import com.google.cloud.compute.v1.SourceInstanceParams;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
public class CreateTemplateFromInstance {
public static void main(String[] args)
throws IOException, ExecutionException, InterruptedException, TimeoutException {
// TODO(developer): Replace these variables before running the sample.
// projectId: project ID or project number of the Cloud project you use.
// instance: the instance to base the new template on. This value uses the following format:
// **NOTE**: "projects/{project}/zones/{zone}/instances/{instance_name}"
// templateName: name of the new template to create.
String projectId = "your-project-id";
String templateName = "template-name";
String instance = String.format("projects/%s/zones/%s/instances/%s", projectId, "zone",
"instanceName");
createTemplateFromInstance(projectId, templateName, instance);
}
// Create a new instance template based on an existing instance.
// This new template specifies a different boot disk.
public static void createTemplateFromInstance(String projectId, String templateName,
String instance)
throws IOException, ExecutionException, InterruptedException, TimeoutException {
try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create();
GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
SourceInstanceParams sourceInstanceParams = SourceInstanceParams.newBuilder()
.addDiskConfigs(DiskInstantiationConfig.newBuilder()
// Device name must match the name of a disk attached to the instance you are
// basing your template on.
.setDeviceName("disk-1")
// Replace the original boot disk image used in your instance
// with a Rocky Linux image.
.setInstantiateFrom(InstantiateFrom.CUSTOM_IMAGE.toString())
.setCustomImage(
String.format("projects/%s/global/images/family/%s", "rocky-linux-cloud",
"rocky-linux-8"))
// Override the AutoDelete setting.
.setAutoDelete(true).build())
.build();
InstanceTemplate instanceTemplate = InstanceTemplate.newBuilder()
.setName(templateName)
.setSourceInstance(instance)
.setSourceInstanceParams(sourceInstanceParams)
.build();
InsertInstanceTemplateRequest insertInstanceTemplateRequest = InsertInstanceTemplateRequest
.newBuilder()
.setProject(projectId)
.setInstanceTemplateResource(instanceTemplate)
.build();
Operation operation = instanceTemplatesClient.insertCallable()
.futureCall(insertInstanceTemplateRequest).get(3, TimeUnit.MINUTES);
Operation response = globalOperationsClient.wait(projectId, operation.getName());
if (response.hasError()) {
System.out.println("Instance Template creation failed ! ! " + response);
return;
}
System.out.printf("Instance Template creation operation status %s: %s", templateName,
response.getStatus());
}
}
}Node.js
이 샘플을 사용해 보기 전에 Compute Engine 빠른 시작: 클라이언트 라이브러리 사용의 Node.js 설정 안내를 따르세요. 자세한 내용은 Compute Engine Node.js API 참조 문서를 확인하세요.
Compute Engine에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다. 자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
/**
* TODO(developer): Uncomment and replace these variables before running the sample.
*/
// const projectId = 'YOUR_PROJECT_ID';
// const instance = 'projects/project/zones/zone/instances/instance';
// const templateName = 'your_template_name';
const compute = require('@google-cloud/compute');
// Create a new instance template based on an existing instance.
// This new template specifies a different boot disk.
async function createTemplateFromInstance() {
const instanceTemplatesClient = new compute.InstanceTemplatesClient();
const [response] = await instanceTemplatesClient.insert({
project: projectId,
instanceTemplateResource: {
name: templateName,
sourceInstance: instance,
sourceInstanceParams: {
diskConfigs: [
{
// Device name must match the name of a disk attached to the instance
// your template is based on.
deviceName: 'disk-1',
// Replace the original boot disk image used in your instance with a Rocky Linux image.
instantiateFrom: 'CUSTOM_IMAGE',
customImage:
'projects/rocky-linux-cloud/global/images/family/rocky-linux-8',
// Override the auto_delete setting.
autoDelete: true,
},
],
},
},
});
let operation = response.latestResponse;
const operationsClient = new compute.GlobalOperationsClient();
// Wait for the create operation to complete.
while (operation.status !== 'DONE') {
[operation] = await operationsClient.wait({
operation: operation.name,
project: projectId,
});
}
console.log('Instance template created.');
}
createTemplateFromInstance();Python
이 샘플을 사용해 보기 전에 Compute Engine 빠른 시작: 클라이언트 라이브러리 사용의 Python 설정 안내를 따르세요. 자세한 내용은 Compute Engine Python API 참조 문서를 확인하세요.
Compute Engine에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다. 자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
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_from_instance(
project_id: str, instance: str, template_name: str
) -> compute_v1.InstanceTemplate:
"""
Create a new instance template based on an existing instance.
This new template specifies a different boot disk.
Args:
project_id: project ID or project number of the Cloud project you use.
instance: the instance to base the new template on. This value uses
the following format: "projects/{project}/zones/{zone}/instances/{instance_name}"
template_name: name of the new template to create.
Returns:
InstanceTemplate object that represents the new instance template.
"""
disk = compute_v1.DiskInstantiationConfig()
# Device name must match the name of a disk attached to the instance you are
# basing your template on.
disk.device_name = "disk-1"
# Replace the original boot disk image used in your instance with a Rocky Linux image.
disk.instantiate_from = "CUSTOM_IMAGE"
disk.custom_image = "projects/rocky-linux-cloud/global/images/family/rocky-linux-8"
# Override the auto_delete setting.
disk.auto_delete = True
template = compute_v1.InstanceTemplate()
template.name = template_name
template.source_instance = instance
template.source_instance_params = compute_v1.SourceInstanceParams()
template.source_instance_params.disk_configs = [disk]
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)
다음 단계
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