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Ce document explique comment afficher la configuration de la flexibilité des instances dans un groupe d'instances géré (MIG) et les types de machines utilisés par chaque VM du groupe.
Une fois que vous avez ajouté ou modifié la flexibilité des instances dans un MIG, vous pouvez effectuer les opérations suivantes :
Affichez les types de machines utilisés par chaque VM pour vous assurer que le type de machine que vous souhaitez supprimer d'une sélection d'instances n'est utilisé par aucune VM ou pour vérifier les différents types de machines utilisés dans le MIG.
Avant de commencer
Si ce n'est pas déjà fait, configurez l'authentification.
L'authentification valide votre identité pour accéder aux services et aux API Google Cloud . Pour exécuter du code ou des exemples depuis un environnement de développement local, vous pouvez vous authentifier auprès de Compute Engine en sélectionnant l'une des options suivantes :
Select the tab for how you plan to use the samples on this page:
Console
When you use the Google Cloud console to access Google Cloud services and
APIs, you don't need to set up authentication.
gcloud
Installez la Google Cloud CLI.
Une fois que la Google Cloud CLI est installée, initialisez-la en exécutant la commande suivante :
Pour utiliser les exemples API REST de cette page dans un environnement de développement local, vous devez utiliser les identifiants que vous fournissez à la gcloud CLI.
Installez la Google Cloud CLI.
Une fois que la Google Cloud CLI est installée, initialisez-la en exécutant la commande suivante :
Dans la colonne Nom, cliquez sur le nom du MIG dont vous souhaitez afficher la configuration de flexibilité des instances.
La page de présentation du MIG s'affiche.
Cliquez sur l'onglet Détails.
Dans la section Flexibilité de l'instance, le tableau Sélections d'instances affiche le nom et le classement de la sélection d'instances, ainsi que les types de machines qu'elle contient. Si la flexibilité des instances n'est pas configurée pour le MIG, la section Flexibilité des instances ne s'affiche pas.
gcloud
Pour afficher la configuration de la flexibilité des instances, utilisez la commande instance-groups managed describe.
Incluez l'option --format pour filtrer les propriétés instanceFlexibilityPolicy.instanceSelections.
Si la flexibilité des instances n'est pas configurée pour un MIG, le résultat renvoie null.
Remplacez les éléments suivants :
INSTANCE_GROUP_NAME : nom du MIG dont vous souhaitez afficher la configuration de flexibilité des instances.
REGION : région où se trouve le MIG.
REST
Pour afficher la configuration de la flexibilité des instances, utilisez la méthode regionInstanceGroupManagers.get.
Incluez le paramètre fields dans l'URL de la requête pour filtrer les propriétés instanceFlexibilityPolicy.instanceSelections.
GET https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/regions/REGION/instanceGroupManagers/INSTANCE_GROUP_NAME?fields=instanceFlexibilityPolicy.instanceSelections
Dans la colonne Nom, cliquez sur le nom du MIG dans lequel vous souhaitez afficher les types de machines utilisés par chaque VM.
La page Présentation du MIG s'ouvre. Elle liste toutes les VM du groupe, leurs types de machines et d'autres détails.
gcloud
Pour afficher les types de machines utilisés par chaque VM d'un MIG, listez les VM à l'aide de la commande instance-groups managed list-instances et incluez l'option --format pour filtrer le champ propertiesFromFlexibilityPolicy.machineType. Vous pouvez également filtrer d'autres champs si nécessaire.
INSTANCE_GROUP_NAME : nom du MIG dont vous souhaitez afficher la configuration de flexibilité des instances.
REST
Pour afficher les types de machines utilisés par chaque VM d'un MIG, listez les VM à l'aide de la méthode listManagedInstances et vérifiez le champ propertiesFromFlexibilityPolicy.machineType dans la réponse.
POST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/regions/REGION/instanceGroupManagers/INSTANCE_GROUP_NAME/listManagedInstances
Voici un exemple de résultat. Recherchez le champ propertiesFromFlexibilityPolicy dans lequel le champ machineType d'une VM est défini.
Si votre MIG ne dispose pas de la flexibilité des instances, ajoutez-la.
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/09/04 (UTC).
[[["Facile à comprendre","easyToUnderstand","thumb-up"],["J'ai pu résoudre mon problème","solvedMyProblem","thumb-up"],["Autre","otherUp","thumb-up"]],[["Difficile à comprendre","hardToUnderstand","thumb-down"],["Informations ou exemple de code incorrects","incorrectInformationOrSampleCode","thumb-down"],["Il n'y a pas l'information/les exemples dont j'ai besoin","missingTheInformationSamplesINeed","thumb-down"],["Problème de traduction","translationIssue","thumb-down"],["Autre","otherDown","thumb-down"]],["Dernière mise à jour le 2025/09/04 (UTC)."],[[["\u003cp\u003eThis document provides instructions on how to view the instance flexibility configuration of a managed instance group (MIG).\u003c/p\u003e\n"],["\u003cp\u003eYou can verify if instance flexibility has been applied to a MIG or if it already has it configured.\u003c/p\u003e\n"],["\u003cp\u003eThe content explains how to check the machine types used by each virtual machine (VM) within a MIG, ensuring desired machine types are not in use, or to review all the used ones.\u003c/p\u003e\n"],["\u003cp\u003eInstructions are available for using the Google Cloud Console, gcloud command-line tool, and REST API to access this information.\u003c/p\u003e\n"]]],[],null,["# View instance flexibility\n\n*** ** * ** ***\n\nThis document describes how to view the instance flexibility configuration in a\nmanaged instance group (MIG) and the machine types used by each VM in the group.\n\nAfter you add or make changes to instance flexibility in a MIG, you can do the\nfollowing:\n\n- [View the instance flexibility configuration](#view_the_instance_flexibility_configuration)\n to verify if a configuration has been applied or to check if a MIG already has\n instance flexibility.\n\n- [View the machine types used by each VM](#view_the_machine_types_used_by_each_vm)\n to make sure that the machine type that you want to remove from an instance\n selection is not used by any VM or to check the different machine types used\n in the MIG.\n\nBefore you begin\n----------------\n\n- If you haven't already, set up [authentication](/compute/docs/authentication). Authentication verifies your identity for access to Google Cloud services and APIs. To run code or samples from a local development environment, you can authenticate to Compute Engine by selecting one of the following options:\n\n Select the tab for how you plan to use the samples on this page: \n\n ### Console\n\n\n When you use the Google Cloud console to access Google Cloud services and\n APIs, you don't need to set up authentication.\n\n ### gcloud\n\n 1.\n [Install](/sdk/docs/install) the Google Cloud CLI.\n\n After installation,\n [initialize](/sdk/docs/initializing) the Google Cloud CLI by running the following command:\n\n ```bash\n gcloud init\n ```\n\n\n If you're using an external identity provider (IdP), you must first\n [sign in to the gcloud CLI with your federated identity](/iam/docs/workforce-log-in-gcloud).\n | **Note:** If you installed the gcloud CLI previously, make sure you have the latest version by running `gcloud components update`.\n 2. [Set a default region and zone](/compute/docs/gcloud-compute#set_default_zone_and_region_in_your_local_client).\n\n ### REST\n\n\n To use the REST API samples on this page in a local development environment, you use the\n credentials you provide to the gcloud CLI.\n 1. [Install](/sdk/docs/install) the Google Cloud CLI. After installation, [initialize](/sdk/docs/initializing) the Google Cloud CLI by running the following command: \n\n ```bash\n gcloud init\n ```\n 2. If you're using an external identity provider (IdP), you must first [sign in to the gcloud CLI with your federated identity](/iam/docs/workforce-log-in-gcloud).\n\n\n For more information, see\n [Authenticate for using REST](/docs/authentication/rest)\n in the Google Cloud authentication documentation.\n\nView the instance flexibility configuration\n-------------------------------------------\n\n### Console\n\n1. In the Google Cloud console, go to the **Instance groups** page.\n\n [Go to Instance groups](https://console.cloud.google.com/compute/instanceGroups)\n\n \u003cbr /\u003e\n\n2. In the **Name** column, click the name of the MIG of which you want to\n view the instance flexibility configuration.\n\n The overview page of the MIG opens.\n3. Click the **Details** tab.\n\n In the **Instance flexibility** section, the **Instance selections**\n table shows the instance selection name, rank, and the machine types in\n a selection. If the MIG doesn't have instance flexibility configured, the\n **Instance flexibility** section is not shown.\n\n### gcloud\n\nTo view the instance flexibility configuration, use the\n[`instance-groups managed describe` command](/sdk/gcloud/reference/compute/instance-groups/managed/describe).\nInclude the `--format` flag to filter the\n`instanceFlexibilityPolicy.instanceSelections` properties. \n\n```\n gcloud compute instance-groups managed describe INSTANCE_GROUP_NAME \\\n --region REGION \\\n --format=\"json(instanceFlexibilityPolicy.instanceSelections)\"\n```\n\nThe following is a sample output: \n\n```\n{\n \"instanceFlexibilityPolicy\": {\n \"instanceSelections\": {\n \"instance-selection-1\": {\n \"machineTypes\": [\n \"n1-standard-16\",\n \"n2-standard-16\",\n \"e2-standard-16\"\n ],\n \"rank\": 1\n }\n }\n }\n}\n```\n\nIf a MIG doesn't have instance flexibility configured, the output returns\n`null`.\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003eINSTANCE_GROUP_NAME\u003c/var\u003e: the name of the MIG of which you want to view the instance flexibility configuration.\n- \u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e: the region where the MIG is located.\n\n### REST\n\nTo view the instance flexibility configuration, use the\n[`regionInstanceGroupManagers.get` method](/compute/docs/reference/rest/v1/regionInstanceGroupManagers/get).\nInclude the `fields` parameter in the request URL to filter the\n`instanceFlexibilityPolicy.instanceSelections` properties. \n\n```\n GET https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/regions/REGION/instanceGroupManagers/INSTANCE_GROUP_NAME?fields=instanceFlexibilityPolicy.instanceSelections\n```\n\nThe following is a sample output: \n\n```\n{\n \"instanceFlexibilityPolicy\": {\n \"instanceSelections\": {\n \"instance-selection-1\": {\n \"machineTypes\": [\n \"n1-standard-16\",\n \"n2-standard-16\",\n \"e2-standard-16\"\n ],\n \"rank\": 1\n }\n }\n }\n}\n```\n\nIf a MIG doesn't have instance flexibility configured, the output returns\n`null`.\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e: your [project ID](/resource-manager/docs/creating-managing-projects#identifying_projects).\n- \u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e: the region where the MIG is located.\n- \u003cvar translate=\"no\"\u003eINSTANCE_GROUP_NAME\u003c/var\u003e: the name of the MIG of which you want to view the instance flexibility configuration.\n\nView the machine types used by each VM\n--------------------------------------\n\n### Console\n\n1. In the Google Cloud console, go to the **Instance groups** page.\n\n [Go to Instance groups](https://console.cloud.google.com/compute/instanceGroups)\n\n \u003cbr /\u003e\n\n2. In the **Name** column, click the name of the MIG in which you want view\n the machine types used by each VM.\n\n The **Overview** page of the MIG opens, which lists all VMs in the group,\n their machine types, and other details.\n\n### gcloud\n\nTo view the machine types used by each VM in a MIG, list the VMs using the\n[`instance-groups managed list-instances` command](/sdk/gcloud/reference/compute/instance-groups/managed/list-instances) and include the `--format` flag to filter the\n`propertiesFromFlexibilityPolicy.machineType` field. You can also filter\nother fields as needed. \n\n```\n gcloud compute instance-groups managed list-instances INSTANCE_GROUP_NAME \\\n --region REGION \\\n --format='(name,instanceStatus,currentAction,propertiesFromFlexibilityPolicy.machineType,lastAttempt.errors.errors)'\n```\n\nThe following is a sample output: \n\n```\nNAME: example-mig-0md2\nSTATUS: RUNNING\nACTION: NONE\nMACHINE_TYPE: n1-standard-16\nLAST_ERROR:\n\nNAME: example-mig-vbgg\nSTATUS: RUNNING\nACTION: NONE\nMACHINE_TYPE: n1-standard-16\nLAST_ERROR:\n```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e: the region where the MIG is located.\n- \u003cvar translate=\"no\"\u003eINSTANCE_GROUP_NAME\u003c/var\u003e: the name of the MIG of which you want to view the instance flexibility configuration.\n\n### REST\n\nTo view the machine types used by each VM in a MIG, list the VMs using the\n[`listManagedInstances` method](/compute/docs/reference/rest/v1/regionInstanceGroupManagers/listManagedInstances)\nand check the `propertiesFromFlexibilityPolicy.machineType` field in the\nresponse. \n\n```\n POST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/regions/REGION/instanceGroupManagers/INSTANCE_GROUP_NAME/listManagedInstances\n```\n\nThe following is a sample output; look for the\n`propertiesFromFlexibilityPolicy` field in which the `machineType` field of\na VM is set. \n\n```\n{\n \"managedInstances\": [\n {\n \"instance\": \"https://www.googleapis.com/compute/v1/projects/example-project/zones/us-central1-b/instances/example-mig-0md2\",\n \"instanceStatus\": \"RUNNING\",\n \"id\": \"2656095434923471959\",\n \"version\": {\n \"instanceTemplate\": \"https://www.googleapis.com/compute/v1/projects/example-project/global/instanceTemplates/example-instance-template\"\n },\n \"targetStatus\": \"RUNNING\",\n \"name\": \"example-mig-0md2\",\n \"propertiesFromFlexibilityPolicy\": {\n \"machineType\": \"n1-standard-16\"\n }\n },\n {\n \"instance\": \"https://www.googleapis.com/compute/v1/projects/example-project/zones/us-central1-b/instances/example-mig-vbgg\",\n \"instanceStatus\": \"RUNNING\",\n \"currentAction\": \"NONE\",\n \"id\": \"9171259522409694366\",\n \"version\": {\n \"instanceTemplate\": \"https://www.googleapis.com/compute/v1/projects/example-project/global/instanceTemplates/example-instance-template\"\n },\n \"targetStatus\": \"RUNNING\",\n \"name\": \"example-mig-vbgg\",\n \"propertiesFromFlexibilityPolicy\": {\n \"machineType\": \"n1-standard-16\"\n }\n }\n ]\n}\n```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e: your [project ID](/resource-manager/docs/creating-managing-projects#identifying_projects).\n- \u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e: the region where the MIG is located.\n- \u003cvar translate=\"no\"\u003eINSTANCE_GROUP_NAME\u003c/var\u003e: the name of the MIG of which you want to view the instance flexibility configuration.\n\nWhat's next\n-----------\n\n- [Change or remove instance flexibility configuration](/compute/docs/instance-groups/change-or-remove-instance-flexibility-configuration).\n\n- If your MIG doesn't have instance flexibility, [add instance flexibility](/compute/docs/instance-groups/configure-instance-flexibility)."]]