Obtener, enumerar y eliminar plantillas de instancias

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import (
	"context"
	"fmt"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
)

// getInstanceTemplate retrieves an instance template, which you can use to create virtual machine
// (VM) instances and managed instance groups (MIGs).
func getInstanceTemplate(projectID, templateName string) (*computepb.InstanceTemplate, error) {
	// projectID := "your_project_id"
	// templateName := "your_template_name"

	ctx := context.Background()
	instanceTemplatesClient, err := compute.NewInstanceTemplatesRESTClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("NewInstanceTemplatesRESTClient: %w", err)
	}
	defer instanceTemplatesClient.Close()

	req := &computepb.GetInstanceTemplateRequest{
		Project:          projectID,
		InstanceTemplate: templateName,
	}

	return instanceTemplatesClient.Get(ctx, req)
}

import com.google.cloud.compute.v1.GetInstanceTemplateRequest;
import com.google.cloud.compute.v1.InstanceTemplate;
import com.google.cloud.compute.v1.InstanceTemplatesClient;
import java.io.IOException;

public class GetInstanceTemplate {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    // projectId: project ID or project number of the Cloud project you use.
    // templateName: name of the template to retrieve.
    String projectId = "your-project-id";
    String templateName = "template-name";
    getInstanceTemplate(projectId, templateName);
  }

  //  Retrieve an instance template, which you can use to create virtual machine
  //  (VM) instances and managed instance groups (MIGs).
  public static void getInstanceTemplate(String projectId, String templateName) throws IOException {
    try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {

      GetInstanceTemplateRequest getInstanceTemplateRequest = GetInstanceTemplateRequest
          .newBuilder()
          .setProject(projectId)
          .setInstanceTemplate(templateName).build();

      InstanceTemplate instanceTemplate = instanceTemplatesClient.get(getInstanceTemplateRequest);
      System.out.println("Instance Template retrieved: " + instanceTemplate.getName());
    }
  }
}

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const templateName = 'your_template_name';

const compute = require('@google-cloud/compute');

// Retrieve an instance template, which you can use to create
// virtual machine (VM) instances and managed instance groups (MIGs).
async function getInstanceTemplate() {
  const instanceTemplatesClient = new compute.InstanceTemplatesClient();

  const [instance] = await instanceTemplatesClient.get({
    project: projectId,
    instanceTemplate: templateName,
  });

  console.log('Instance template:', instance);
}

getInstanceTemplate();

from google.cloud import compute_v1


def get_instance_template(
    project_id: str, template_name: str
) -> compute_v1.InstanceTemplate:
    """
    Retrieve an instance template, which you can use to create virtual machine
    (VM) instances and managed instance groups (MIGs).

    Args:
        project_id: project ID or project number of the Cloud project you use.
        template_name: name of the template to retrieve.

    Returns:
        InstanceTemplate object that represents the retrieved template.
    """
    template_client = compute_v1.InstanceTemplatesClient()
    return template_client.get(project=project_id, instance_template=template_name)

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/api/iterator"
)

// listInstanceTemplates prints a list of InstanceTemplate objects available in a project.
func listInstanceTemplates(w io.Writer, projectID string) error {
	// projectID := "your_project_id"

	ctx := context.Background()
	instanceTemplatesClient, err := compute.NewInstanceTemplatesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewInstanceTemplatesRESTClient: %w", err)
	}
	defer instanceTemplatesClient.Close()

	req := &computepb.ListInstanceTemplatesRequest{
		Project: projectID,
	}

	it := instanceTemplatesClient.List(ctx, req)
	for {
		instance, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return err
		}
		fmt.Fprintf(w, "- %s %s\n", instance.GetName(), instance.GetProperties().GetMachineType())
	}

	return nil
}

import com.google.cloud.compute.v1.InstanceTemplate;
import com.google.cloud.compute.v1.InstanceTemplatesClient;
import com.google.cloud.compute.v1.InstanceTemplatesClient.ListPagedResponse;
import java.io.IOException;

public class ListInstanceTemplates {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    // projectId: project ID or project number of the Cloud project you use.
    String projectId = "your-project-id";
    listInstanceTemplates(projectId);
  }

  // Get a list of InstanceTemplate objects available in a project.
  public static ListPagedResponse listInstanceTemplates(String projectId) throws IOException {
    try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
      int count = 0;
      System.out.println("Listing instance templates...");
      ListPagedResponse templates = instanceTemplatesClient.list(projectId);
      for (InstanceTemplate instanceTemplate : templates.iterateAll()) {
        System.out.printf("%s. %s%n", ++count, instanceTemplate.getName());
      }
      return templates;
    }
  }
}

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';

const compute = require('@google-cloud/compute');

// Print a list of instance template objects available in a project.
async function listInstanceTemplates() {
  const instanceTemplatesClient = new compute.InstanceTemplatesClient();

  const instanceTemplates = instanceTemplatesClient.listAsync({
    project: projectId,
  });

  for await (const instanceTemplate of instanceTemplates) {
    console.log(` - ${instanceTemplate.name}`);
  }
}

listInstanceTemplates();

from __future__ import annotations

from collections.abc import Iterable

from google.cloud import compute_v1


def list_instance_templates(project_id: str) -> Iterable[compute_v1.InstanceTemplate]:
    """
    Get a list of InstanceTemplate objects available in a project.

    Args:
        project_id: project ID or project number of the Cloud project you use.

    Returns:
        Iterable list of InstanceTemplate objects.
    """
    template_client = compute_v1.InstanceTemplatesClient()
    return template_client.list(project=project_id)

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
)

// deleteInstanceTemplate deletes an instance template.
func deleteInstanceTemplate(w io.Writer, projectID, templateName string) error {
	// projectID := "your_project_id"
	// 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.DeleteInstanceTemplateRequest{
		Project:          projectID,
		InstanceTemplate: templateName,
	}

	op, err := instanceTemplatesClient.Delete(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to delete 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 deleted\n")

	return nil
}

import com.google.cloud.compute.v1.DeleteInstanceTemplateRequest;
import com.google.cloud.compute.v1.InstanceTemplatesClient;
import com.google.cloud.compute.v1.Operation;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class DeleteInstanceTemplate {

  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.
    // templateName: name of the new template to create.
    String projectId = "your-project-id";
    String templateName = "template-name";
    deleteInstanceTemplate(projectId, templateName);
  }

  // Delete an instance template.
  public static void deleteInstanceTemplate(String projectId, String templateName)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {

      DeleteInstanceTemplateRequest deleteInstanceTemplateRequest = DeleteInstanceTemplateRequest
          .newBuilder()
          .setProject(projectId)
          .setInstanceTemplate(templateName).build();

      Operation response = instanceTemplatesClient.deleteAsync(deleteInstanceTemplateRequest)
          .get(3, TimeUnit.MINUTES);

      if (response.hasError()) {
        System.out.println("Instance template deletion failed ! ! " + response);
        return;
      }
      System.out.printf("Instance template deletion operation status for %s: %s ", templateName,
          response.getStatus());
    }
  }
}

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const templateName = 'your_template_name';

const compute = require('@google-cloud/compute');

// Delete an instance template.
async function deleteInstanceTemplate() {
  const instanceTemplatesClient = new compute.InstanceTemplatesClient();

  const [response] = await instanceTemplatesClient.delete({
    project: projectId,
    instanceTemplate: templateName,
  });
  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 deleted.');
}

deleteInstanceTemplate();

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 delete_instance_template(project_id: str, template_name: str) -> None:
    """
    Delete an instance template.

    Args:
        project_id: project ID or project number of the Cloud project you use.
        template_name: name of the template to delete.
    """
    template_client = compute_v1.InstanceTemplatesClient()
    operation = template_client.delete(
        project=project_id, instance_template=template_name
    )
    wait_for_extended_operation(operation, "instance template deletion")