Controlla se una determinata istanza è una VM spot o meno
Mantieni tutto organizzato con le raccolte
Salva e classifica i contenuti in base alle tue preferenze.
Questo esempio controlla se una determinata istanza è una VM spot o meno.
Per saperne di più
Per la documentazione dettagliata che include questo esempio di codice, vedi quanto segue:
Esempio di codice
Salvo quando diversamente specificato, i contenuti di questa pagina sono concessi in base alla licenza Creative Commons Attribution 4.0, mentre gli esempi di codice sono concessi in base alla licenza Apache 2.0. Per ulteriori dettagli, consulta le norme del sito di Google Developers. Java è un marchio registrato di Oracle e/o delle sue consociate.
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Difficile da capire","hardToUnderstand","thumb-down"],["Informazioni o codice di esempio errati","incorrectInformationOrSampleCode","thumb-down"],["Mancano le informazioni o gli esempi di cui ho bisogno","missingTheInformationSamplesINeed","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Altra","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis content provides code samples in Go, Java, and Python to check if a given Compute Engine instance is a Spot VM.\u003c/p\u003e\n"],["\u003cp\u003eThe code samples use the Compute Engine API to retrieve instance details and check the provisioning model, which determines if the instance is a Spot VM.\u003c/p\u003e\n"],["\u003cp\u003eBefore running the code samples, users must follow setup instructions for their chosen language and set up Application Default Credentials (ADC) for authentication.\u003c/p\u003e\n"],["\u003cp\u003eEach language provides a function (e.g., \u003ccode\u003eisSpotVM\u003c/code\u003e in Go, \u003ccode\u003eisSpotVm\u003c/code\u003e in Java and Python) that accepts the project ID, zone, and instance name as parameters.\u003c/p\u003e\n"],["\u003cp\u003eThe code samples output whether or not the instance is a Spot VM based on the instance's provisioning model from the API.\u003c/p\u003e\n"]]],[],null,["# Check if a given instance is Spot VM or not\n\nThis sample checks if a given instance is Spot VM or not.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Create and use Spot VMs](/compute/docs/instances/create-use-spot)\n\nCode sample\n-----------\n\n### Go\n\n\nBefore trying this sample, follow the Go setup instructions in the\n[Compute Engine quickstart using\nclient libraries](/compute/docs/api/using-libraries).\n\n\nFor more information, see the\n[Compute Engine Go API\nreference documentation](/go/docs/reference/cloud.google.com/go/compute/latest/apiv1).\n\n\nTo authenticate to Compute Engine, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n\n import (\n \t\"context\"\n \t\"fmt\"\n \t\"io\"\n\n \tcompute \"cloud.google.com/go/compute/apiv1\"\n \t\"cloud.google.com/go/compute/apiv1/computepb\"\n )\n\n // isSpotVM checks if a given instance is a Spot VM or not.\n func isSpotVM(w io.Writer, projectID, zone, instanceName string) (bool, error) {\n \t// projectID := \"your_project_id\"\n \t// zone := \"europe-central2-b\"\n \t// instanceName := \"your_instance_name\"\n \tctx := context.Background()\n \tclient, err := compute.https://cloud.google.com/go/docs/reference/cloud.google.com/go/compute/latest/apiv1.html#cloud_google_com_go_compute_apiv1_InstancesClient_NewInstancesRESTClient(ctx)\n \tif err != nil {\n \t\treturn false, fmt.Errorf(\"NewInstancesRESTClient: %w\", err)\n \t}\n \tdefer client.Close()\n\n \treq := &computepb.GetInstanceRequest{\n \t\tProject: projectID,\n \t\tZone: zone,\n \t\tInstance: instanceName,\n \t}\n\n \tinstance, err := client.Get(ctx, req)\n \tif err != nil {\n \t\treturn false, fmt.Errorf(\"GetInstance: %w\", err)\n \t}\n\n \tisSpot := instance.GetScheduling().GetProvisioningModel() == computepb.https://cloud.google.com/go/docs/reference/cloud.google.com/go/compute/latest/apiv1/computepb.html#cloud_google_com_go_compute_apiv1_computepb_Scheduling_UNDEFINED_PROVISIONING_MODEL_Scheduling_RESERVATION_BOUND_Scheduling_SPOT_Scheduling_STANDARD.String()\n\n \tvar isSpotMessage string\n \tif !isSpot {\n \t\tisSpotMessage = \" not\"\n \t}\n \tfmt.Fprintf(w, \"Instance %s is%s spot\\n\", instanceName, isSpotMessage)\n\n \treturn instance.GetScheduling().GetProvisioningModel() == computepb.https://cloud.google.com/go/docs/reference/cloud.google.com/go/compute/latest/apiv1/computepb.html#cloud_google_com_go_compute_apiv1_computepb_Scheduling_UNDEFINED_PROVISIONING_MODEL_Scheduling_RESERVATION_BOUND_Scheduling_SPOT_Scheduling_STANDARD.String(), nil\n }\n\n### Java\n\n\nBefore trying this sample, follow the Java setup instructions in the\n[Compute Engine quickstart using\nclient libraries](/compute/docs/api/using-libraries).\n\n\nFor more information, see the\n[Compute Engine Java API\nreference documentation](/java/docs/reference/google-cloud-compute/latest/overview).\n\n\nTo authenticate to Compute Engine, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n\n import com.google.cloud.compute.v1.https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.Instance.html;\n import com.google.cloud.compute.v1.https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.InstancesClient.html;\n import com.google.cloud.compute.v1.https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.Scheduling.html;\n import java.io.IOException;\n import java.util.concurrent.ExecutionException;\n import java.util.concurrent.TimeoutException;\n\n public class CheckIsSpotVm {\n public static void main(String[] args)\n throws IOException, ExecutionException, InterruptedException, TimeoutException {\n // TODO(developer): Replace these variables before running the sample.\n // Project ID or project number of the Google Cloud project you want to use.\n String projectId = \"your-project-id\";\n // Name of the virtual machine to check.\n String instanceName = \"your-route-name\";\n // Name of the zone you want to use. For example: \"us-west3-b\"\n String zone = \"your-zone\";\n\n boolean isSpotVm = isSpotVm(projectId, instanceName, zone);\n System.out.printf(\"Is %s spot VM instance - %s\", instanceName, isSpotVm);\n }\n\n // Check if a given instance is Spot VM or not.\n public static boolean isSpotVm(String projectId, String instanceName, String zone)\n throws IOException {\n // Initialize client that will be used to send requests. This client only needs to be created\n // once, and can be reused for multiple requests.\n try (https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.InstancesClient.html client = https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.InstancesClient.html.create()) {\n https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.Instance.html instance = client.get(projectId, zone, instanceName);\n\n return instance.https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.Instance.html#com_google_cloud_compute_v1_Instance_getScheduling__().getProvisioningModel()\n .equals(https://cloud.google.com/java/docs/reference/google-cloud-compute/latest/com.google.cloud.compute.v1.Scheduling.html.ProvisioningModel.SPOT.name());\n }\n }\n }\n\n### Python\n\n\nBefore trying this sample, follow the Python setup instructions in the\n[Compute Engine quickstart using\nclient libraries](/compute/docs/api/using-libraries).\n\n\nFor more information, see the\n[Compute Engine Python API\nreference documentation](/python/docs/reference/compute/latest).\n\n\nTo authenticate to Compute Engine, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n from google.cloud import https://cloud.google.com/python/docs/reference/compute/latest/\n\n\n def is_spot_vm(project_id: str, zone: str, instance_name: str) -\u003e bool:\n \"\"\"\n Check if a given instance is Spot VM or not.\n Args:\n project_id: project ID or project number of the Cloud project you want to use.\n zone: name of the zone you want to use. For example: \"us-west3-b\"\n instance_name: name of the virtual machine to check.\n Returns:\n The Spot VM status of the instance.\n \"\"\"\n instance_client = https://cloud.google.com/python/docs/reference/compute/latest/.https://cloud.google.com/python/docs/reference/compute/latest/google.cloud.compute_v1.services.instances.InstancesClient.html()\n instance = instance_client.https://cloud.google.com/python/docs/reference/compute/latest/google.cloud.compute_v1.services.instances.InstancesClient.html#google_cloud_compute_v1_services_instances_InstancesClient_get(\n project=project_id, zone=zone, instance=instance_name\n )\n return (\n instance.scheduling.provisioning_model\n == https://cloud.google.com/python/docs/reference/compute/latest/.https://cloud.google.com/python/docs/reference/compute/latest/google.cloud.compute_v1.types.Scheduling.html.https://cloud.google.com/python/docs/reference/compute/latest/google.cloud.compute_v1.types.Scheduling.ProvisioningModel.html.SPOT.name\n )\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=compute)."]]