公開鍵基盤(PKI)階層の最上位にあるルート CA は、PKI のトラスト アンカーを確立します。PKI 内で証明書を使用するには、デバイス、ソフトウェア、コンポーネントがルート CA を信頼する必要があります。この構成により、ルート CA によって発行されたすべての証明書が信頼され、PKI 自体が信頼されるようになります。
始める前に
ルート認証局の作成に必要な権限を取得するには、組織の IAM 管理者に Certificate Authority Service 管理者(certificate-authority-service-admin)ロールの付与を依頼してください。ロールの詳細については、ロールの定義をご覧ください。
kubeconfig ファイルを取得する
Management API サーバーに対してコマンドを実行するには、次のリソースがあることを確認します。
Management API サーバーの kubeconfig ファイルがない場合は、ログインして生成します。
これらの手順では、Management API サーバーの kubeconfig ファイルのパスを使用して MANAGEMENT_API_SERVER_KUBECONFIG を置き換えます。
ルート認証局の作成
ルート CA を作成するには、カスタム リソースを Distributed Cloud のエアギャップ インスタンスに適用します。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[],[],null,["# Create a root certificate authority\n\nThis page describes the steps to create a root certificate authority (CA) in\nGoogle Distributed Cloud (GDC) air-gapped.\n\nA root CA, which sits atop the public key infrastructure (PKI) hierarchy,\nestablishes the trust anchor for the PKI. To use certificates within a PKI,\ndevices, software, and components must trust the root CA. This configuration\nensures trust in all certificates issued by the root CA, thereby enabling trust\nin the PKI itself.\n\nBefore you begin\n----------------\n\nTo get the permissions you need to create a root certificate authority, ask your\nOrganization IAM Admin to grant you the Certificate Authority Service Admin\n(`certificate-authority-service-admin`) role. For more information on roles, see\n[Role definitions](/distributed-cloud/hosted/docs/latest/gdch/application/ao-user/iam/role-definitions).\n\n### Get the kubeconfig file\n\nTo run commands against the Management API server, ensure you have the following\nresources:\n\n1. [Sign in and generate](/distributed-cloud/hosted/docs/latest/gdch/application/ao-user/iam/sign-in#cli) the\n kubeconfig file for the Management API server if you don't have one.\n\n2. Use the path to the kubeconfig file of the Management API server to replace\n \u003cvar translate=\"no\"\u003eMANAGEMENT_API_SERVER_KUBECONFIG\u003c/var\u003e in these\n instructions.\n\nCreate a root certificate authority\n-----------------------------------\n\nTo create a root CA, apply a custom resource to your Distributed Cloud\nair-gapped instance.\n\n1. Create a `CertificateAuthority` resource and save it as a YAML file called\n `root-ca.yaml`:\n\n apiVersion: pki.security.gdc.goog/v1\n kind: CertificateAuthority\n metadata:\n name: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eROOT_CA_NAME\u003c/span\u003e\u003c/var\u003e\n namespace: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eUSER_PROJECT_NAMESPACE\u003c/span\u003e\u003c/var\u003e\n spec:\n caProfile:\n commonName: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eCOMMON_NAME\u003c/span\u003e\u003c/var\u003e\n duration: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eDURATION\u003c/span\u003e\u003c/var\u003e\n renewBefore: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eRENEW_BEFORE\u003c/span\u003e\u003c/var\u003e\n organizations:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eORGANIZATION\u003c/span\u003e\u003c/var\u003e\n organizationalUnits:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eORGANIZATIONAL_UNITS\u003c/span\u003e\u003c/var\u003e\n countries:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eCOUNTRIES\u003c/span\u003e\u003c/var\u003e\n localities:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eLOCALTIES\u003c/span\u003e\u003c/var\u003e\n provinces:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003ePROVINCES\u003c/span\u003e\u003c/var\u003e\n streetAddresses:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eSTREET_ADDRESSES\u003c/span\u003e\u003c/var\u003e\n postalCodes:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003ePOSTAL_CODES\u003c/span\u003e\u003c/var\u003e\n caCertificate:\n selfSignedCA: {}\n certificateProfile:\n keyUsage:\n - digitalSignature\n - keyCertSign\n - crlSign\n extendedKeyUsage:\n - \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eEXTENDED_KEY_USAGE\u003c/span\u003e\u003c/var\u003e\n secretConfig:\n secretName: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eSECRET_NAME\u003c/span\u003e\u003c/var\u003e\n privateKeyConfig:\n algorithm: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eKEY_ALGORITHM\u003c/span\u003e\u003c/var\u003e\n size: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eKEY_SIZE\u003c/span\u003e\u003c/var\u003e\n acme:\n enabled: \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-l devsite-syntax-l-Scalar devsite-syntax-l-Scalar-Plain\"\u003eACME_ENABLED\u003c/span\u003e\u003c/var\u003e\n\n Replace the following variables:\n\n The following variables are optional values:\n\n \u003cbr /\u003e\n\n2. Apply the custom resource to your Distributed Cloud instance:\n\n kubectl apply -f root-ca.yaml --kubeconfig \u003cvar translate=\"no\"\u003eMANAGEMENT_API_SERVER_KUBECONFIG\u003c/var\u003e\n\n Replace \u003cvar translate=\"no\"\u003eMANAGEMENT_API_SERVER_KUBECONFIG\u003c/var\u003e with the\n path to the kubeconfig file of the Management API server.\n3. Verify the readiness of the root CA. It normally takes around 40 minutes for\n the CA to become ready:\n\n kubectl --kubeconfig \u003cvar translate=\"no\"\u003eMANAGEMENT_API_SERVER_KUBECONFIG\u003c/var\u003e -n \u003cvar translate=\"no\"\u003eUSER_PROJECT_NAMESPACE\u003c/var\u003e get certificateauthority.pki.security.gdc.goog/\u003cvar translate=\"no\"\u003eROOT_CA_NAME\u003c/var\u003e -ojson | jq -r ' \n .status.conditions[] | select( .type as $id | \"Ready\" | index($id))\n\n The output looks similar to the following: \n\n {\n \"lastTransitionTime\": \"2025-01-24T17:09:19Z\",\n \"message\": \"CA reconciled\",\n \"observedGeneration\": 2,\n \"reason\": \"Ready\",\n \"status\": \"True\",\n \"type\": \"Ready\"\n }\n\nList CAs\n--------\n\nTo list all of the Certificate Authority Service resources in your\nDistributed Cloud air-gapped instance, do the following:\n\nUse the `certificateauthorities` parameter to list all `CertificateAuthority`\nresources: \n\n kubectl --kubeconfig \u003cvar translate=\"no\"\u003eMANAGEMENT_API_SERVER_KUBECONFIG\u003c/var\u003e -n \u003cvar translate=\"no\"\u003eUSER_PROJECT_NAMESPACE\u003c/var\u003e get certificateauthorities\n\nThe output looks similar to the following: \n\n NAMESPACE NAME READY REASON AGE\n foo root-ca True Ready 7h24m\n foo sub-ca True Ready 7h24m"]]