GKE 用戶端程式庫提供高階語言支援，可透過程式輔助驗證 GKE。為驗證對 Google Cloud API 的呼叫，用戶端程式庫支援應用程式預設憑證 (ADC)；程式庫會在定義的一組位置中尋找憑證，並使用這些憑證驗證對 API 的要求。使用 ADC，您可以在各種環境 (例如本機開發或正式版) 中，為應用程式提供憑證，無須修改應用程式程式碼。
[[["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：2025-07-31 (世界標準時間)。"],[],[],null,["# Authenticate to GKE\n\n[Autopilot](/kubernetes-engine/docs/concepts/autopilot-overview) [Standard](/kubernetes-engine/docs/concepts/choose-cluster-mode)\n\n*** ** * ** ***\n\n\nThis document describes how to authenticate to Google Kubernetes Engine programmatically. How\nyou authenticate to Google Kubernetes Engine depends on the interface you use to access the API\nand the environment where your code is running.\nThe GKE API lets you interact with the Google Cloud infrastructure that runs Kubernetes, like your GKE clusters and nodes.\n\n\u003cbr /\u003e\n\nTo interact with *Kubernetes objects* like Pods and Services, you must\nauthenticate to the Kubernetes API, which is separate to the\nGKE API and is served by the Kubernetes API server in each\ncluster. For instructions, see\n[Authenticate to the Kubernetes API server](/kubernetes-engine/docs/how-to/api-server-authentication).\n\nTo access other Google Cloud resources like Cloud Storage buckets\nfrom workloads running in GKE, use\n[Workload Identity Federation for GKE](/kubernetes-engine/docs/how-to/workload-identity).\n\n\nFor more information about Google Cloud authentication, see the\n[Authentication methods](/docs/authentication).\n\nAPI access\n----------\n\n\nGKE supports programmatic access. You can access the API in\nthe following ways:\n\n- [Client libraries](#client-libraries)\n- [Google Cloud CLI](#gcloud)\n- [REST](#rest)\n\n### Client libraries\n\n\nThe [GKE client libraries](/kubernetes-engine/docs/reference/libraries) provide\nhigh-level language support for authenticating to GKE\nprogrammatically.\n\n\nTo authenticate calls to Google Cloud APIs, client libraries support\n[Application Default Credentials (ADC)](/docs/authentication/application-default-credentials);\nthe libraries look for credentials in a set of defined locations and use those credentials\nto authenticate requests to the API. With ADC, you can make\ncredentials available to your application in a variety of environments, such as local\ndevelopment or production, without needing to modify your application code.\n\n### Google Cloud CLI\n\n\nWhen you use the [gcloud CLI](/sdk/gcloud/reference/container/clusters) to access\nGKE, you\n[log in to the gcloud CLI](/sdk/docs/authorizing) with a user\naccount, which provides the credentials used by the gcloud CLI commands.\n\n\nIf your organization's security policies prevent user accounts from having the required\npermissions, you can use [service account impersonation](#sa-impersonation).\n\nFor more information, see\n[Authenticate for using the gcloud CLI](/docs/authentication/gcloud).\nFor more information about using the gcloud CLI with GKE,\nsee [the gcloud CLI reference pages](/sdk/gcloud/reference/container/clusters).\n\n\n### REST\n\n\nYou can authenticate to\n[the GKE API](/kubernetes-engine/docs/reference/rest)\nby using your gcloud CLI credentials or by using\n[Application Default Credentials](/docs/authentication/application-default-credentials).\nFor more information about authentication for REST requests, see\n[Authenticate for using REST](/docs/authentication/rest).\nFor information about the types of credentials, see\n[gcloud CLI credentials and ADC credentials](/docs/authentication/gcloud#gcloud-credentials).\n\nWhat's next\n-----------\n\n- [Authenticate to the Kubernetes API server](/kubernetes-engine/docs/how-to/api-server-authentication).\n- [Use external identity providers to authenticate to GKE](/kubernetes-engine/docs/how-to/oidc).\n- [Authenticate to Google Cloud APIs from GKE using Workload Identity Federation for GKE](/kubernetes-engine/docs/how-to/workload-identity).\n- [Learn about access control in GKE and Kubernetes](/kubernetes-engine/docs/concepts/access-control).\n- [Learn about the GKE API and the Kubernetes API](/kubernetes-engine/docs/reference/api-organization).\n- Learn about [Google Cloud authentication methods](/docs/authentication#auth-decision-tree).\n- See a list of [authentication use cases](/docs/authentication/use-cases)."]]
