Google Distributed Cloud 的二進位授權是一項 Google Cloud 功能，可將二進位授權的代管部署時間強制執行功能，擴展至您的地端使用者叢集。Google Distributed Cloud 的二進位授權主要用途，是保護使用者叢集中的工作負載。請按照本指南中的步驟，將 Google Cloud 專案中設定的二進位授權政策強制執行規則，套用至使用者叢集。如要進一步瞭解二進位授權政策和規則，請參閱 二進位授權總覽。
必要條件
如要為使用者叢集啟用二進位授權政策強制執行功能，請先確認您符合下列先決條件：
向機群註冊叢集：如果是使用 gkectl 建立的叢集，叢集會向您在叢集設定檔的 gkeConnect.projectID 欄位中指定的 Google Cloud 專案註冊。這個專案稱為「機群主專案」。如要進一步瞭解機群 (包括用途、最佳做法和範例)，請參閱機群管理文件。
[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-09-01 (世界標準時間)。"],[],[],null,["Binary Authorization for Google Distributed Cloud is a Google Cloud feature\nthat extends the hosted, deploy-time enforcement of\n[Binary Authorization](/binary-authorization/docs/overview) to your on-premises\nuser clusters. The primary use case for Binary Authorization on\nGoogle Distributed Cloud is to secure workloads on your user clusters. Follow the\nsteps in this guide to apply the enforcement rules of a Binary Authorization\npolicy configured in your Google Cloud project to your user clusters. For more\ninformation about Binary Authorization policies and rules, see\n[Binary Authorizationoverview](/binary-authorization/docs/key-concepts).\n| **Note:** If you enabled the ([Preview](/products#product-launch-stages)) Binary Authorization for Google Distributed Cloud, [disable it and clean up the\n| resources](/binary-authorization/docs/setting-up-on-prem#clean_up) before you enable the GA feature. Use the instructions in this document to enable the GA feature on version 1.28 or higher clusters.\n\nPrerequisites\n\nBefore you can enable Binary Authorization policy enforcement for a user\ncluster, ensure you've met the following prerequisite criteria:\n\n- **Register the cluster with a fleet:** For a cluster created with `gkectl`,\n the cluster is registered to the Google Cloud project that you specify\n in the `gkeConnect.projectID` field in the cluster configuration file. This\n project is referred to as the [fleet host\n project](/anthos/fleet-management/docs/fleet-concepts#fleet-host-project).\n To learn more about fleets, including use cases, best practices, and\n examples, see the [Fleet management](/anthos/fleet-management/docs)\n documentation.\n\n- **Enable the Binary Authorization API in your Google Cloud project:** [enable\n the Binary Authorization service](/binary-authorization/docs/enabling) in\n your fleet host project.\n\n- **Add the Binary Authorization Policy Evaluator role to your fleet host\n project:** To grant the Binary Authorization Policy Evaluator\n (`roles/binaryauthorization.policyEvaluator`) role to the Kubernetes service\n account on your fleet host project, run the following command:\n\n gcloud projects add-iam-policy-binding \u003cvar label=\"ID for the fleet host project\" translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e \\\n --member=\"serviceAccount:\u003cvar scope=\"PROJECT_ID\" translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e.svc.id.goog[binauthz-system/binauthz-agent]\" \\\n --role=\"roles/binaryauthorization.policyEvaluator\"\n\n If your cluster is running behind a proxy server, make sure the proxy server\n allows connections to the Binary Authorization API\n (`binaryauthorization.googleapis.com`). This API provides policy-based\n deployment validation and control for images deployed to your cluster. For\n more information about, see\n [Proxy and firewall rules proxy](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/firewall-rules).\n\nOnce you satisfy the prerequisites, you can enable (or disable) the\nBinary Authorization policy when you create a new cluster or update an existing\ncluster.\n\nEnable the Binary Authorization policy during cluster creation\n\nYou can enable the Binary Authorization policy enforcement with either `gkectl`\nor gcloud CLI. \n\n`gkectl`\n\nTo enable Binary Authorization when you create a cluster with `gkectl`:\n\n1. Before you create your cluster, add\n `binaryAuthorization.evaluationMode` to the user cluster\n configuration file as shown in the following example:\n\n ...\n binaryAuthorization:\n evaluationMode: \"project_singleton_policy_enforce\"\n ...\n\n Allowed values for `evaluationMode` are:\n - `project_singleton_policy_enforce`: enforce the rules specified in the\n Binary Authorization *policy* , also known as a *project-singleton\n policy*, on your Google Cloud project to govern the deployment of\n container images on your cluster.\n\n - `disabled`: disable the use of Binary Authorization for your cluster.\n This is the default value. If you omit `binaryAuthorization`, the\n feature is disabled.\n\n2. Make any other changes needed in the cluster configuration file and then\n run the `gkectl create cluster` command.\n\nFor more information about creating clusters, see\n[Google Distributed Cloud installation overview](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/install-overview).\n\nEnable or disable the Binary Authorization policy for an existing cluster\n\nIf you have an existing version 1.28 or higher cluster, you can enable or\ndisable Binary Authorization at any time, using `gkectl` or\ngcloud CLI. \n\n`gkectl`\n\n- To enable:\n\n 1. Edit the cluster configuration file to add the `binaryAuthorization`\n fields:\n\n ...\n binaryAuthorization:\n evaluationMode: \"project_singleton_policy_enforce\"\n\n 2. Update the cluster:\n\n ```\n gkectl update cluster \\\n --kubeconfig ADMIN_CLUSTER_KUBECONFIG \\\n --config USER_CLUSTER_CONFIG_FILE \\\n --force\n ```\n\n Replace the following:\n - \u003cvar translate=\"no\"\u003eADMIN_CLUSTER_KUBECONFIG\u003c/var\u003e: the path of the admin cluster kubeconfig file\n - \u003cvar translate=\"no\"\u003eUSER_CLUSTER_CONFIG_FILE\u003c/var\u003e: the path of your user cluster configuration file.\n 3. Wait for the Deployment named `binauthz-module-deployment` in the\n `binauthz-system` namespace to become ready.\n\n When the deployment is ready, Binary Authorization enforces the rules\n specified in the Binary Authorization *policy* , also known as a\n *project-singleton policy* . This policy is associated with your\n Google Cloud project and specifies rules to govern the deployment of\n container images. For more information about using `gkectl` to update a\n cluster, see [Update clusters](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/upgrading).\n For more information about Binary Authorization policies and rules,\n see [Binary Authorization overview](/binary-authorization/docs/key-concepts).\n- To disable:\n\n 1. Edit the cluster configuration file and either remove the\n `binaryAuthorization` section or by set `evaluationMode` to\n `disabled`.\n\n ...\n binaryAuthorization:\n evaluationMode: \"disabled\"\n\n 2. Update the cluster:\n\n ```\n gkectl update cluster \\\n --kubeconfig ADMIN_CLUSTER_KUBECONFIG \\\n --config USER_CLUSTER_CONFIG_FILE \\\n --force\n ```\n\n After you make this change, wait a few minutes until the Deployment named\n `binauthz-module-deployment` in the `binauthz-system` namespace is\n removed.\n\nTroubleshooting\n\nIf you don't complete all of the prerequisites, you may see a message like the\nfollowing indicates there is a problem with the Binary Authorization configuration: \n\n```bash\nfailed to validate Binary Authorization policy\n\n(1) Ensure the Binary Authorization API is enabled for your Google Cloud project:\n gcloud services enable binaryauthorization.googleapis.com --project=PROJECT_ID\n(2) Ensure an IAM policy binding is in place granting binaryauthorization.policyEvaluator role to the binauthz-system/binauthz-agent Kubernetes service account:\n gcloud projects add-iam-policy-binding PROJECT_ID \\\n --member=\"serviceAccount:\u003cvar class=\"readonly\" translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e.svc.id.goog[binauthz-system/binauthz-agent]\" \\\n --role=roles/binaryauthorization.policyEvaluator\n```"]]
