一般に、マネージド コントロール プレーンを使用して Istio アドオンから Cloud Service Mesh に移行するプロセスは次のとおりです。
Cloud Service Mesh マネージド コントロール プレーンをインストールします。
移行スクリプトを使用して Cloud Service Mesh Ingress ゲートウェイを構成します。
Cloud Service Mesh バージョン 1.18 に移行する
Cloud Service Mesh のドキュメント「Istio on GKE から Cloud Service Mesh への移行」の詳細な手順を実施する必要があります。インストールが完了し、ワークロードを移行したら、このページに戻って残りの構成手順を完了します。
「Istio アドオンの移行手順」の説明に従って、Google マネージド コントロール プレーンを使用して Cloud Service Mesh に移行します。
このプロセスで留意すべき重要な事項は次のとおりです。
「custom envoy filters are not supported」というプロンプトが表示された場合は、次の操作を行います。[はい] を選択して、移行を続行します。例:
Detected custom envoy filters are not supported by Cloud Service Mesh.
Please remove these if possible
NAMESPACE NAME AGE
gke-system allowconnect-cluster-local-gateway 26m
Continue anyways? [y/N] Y
この移行手順の「移行を正常に完了する」セクションでは、Cloud Service Mesh のインストールを完了するための手順を実施します。重要: これらの手順を実施すると、変更をロールバックできなくなります。
[[["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 2025-09-01 UTC。"],[],[],null,["# Migrate the Istio add-on to Cloud Service Mesh\n\nThese steps are specific to installations that identified that the ingress\ngateway of the [Istio on GKE](/istio/docs/istio-on-gke/overview)\nwas configured in their cluster. In this process Cloud Service Mesh version\n1.18 is installed with the managed control plane.\n| **Important:** If you installed the bundled version of Istio that is included by default with the \"*GKE add-on* \", you must instead follow the steps in [migrate the bundled Istio to Cloud Service Mesh](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade/uninstall-istio-addon).\n\nBefore you begin\n----------------\n\n- Migrating from the \"*Istio add-on* \" requires that you to use Cloud Service Mesh\n with the\n [Google-managed control plane](/service-mesh/docs/managed/supported-features-mcp).\n Therefore, the Cloud Service Mesh\n [In-cluster control plane](/service-mesh/v1.18/docs/supported-features) is not\n a supported migration option.\n\n- You must first review and ensure that you meet the\n [requirements for upgrading](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade).\n\n- The commands on this page use the environment variables and migration script\n from the [upgrade preparation step](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade/prepare).\n\n- It is important that you perform each step of this process in the\n [specified order](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade#upgrading).\n\nOverview\n--------\n\nIn general, the process for migrating from the \"*Istio add-on*\" to Cloud Service Mesh\nwith the managed control plane includes:\n\n1. Installing the Cloud Service Mesh managed control plane.\n2. Using the [migration script](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade/prepare) to configure the Cloud Service Mesh ingress gateway.\n\nMigrate to Cloud Service Mesh version 1.18\n------------------------------------------\n\nYou must follow the detailed instructions in the Cloud Service Mesh document\n\"*Migrating from Istio on GKE to Cloud Service Mesh*\".\nAfter you complete the installation and have migrated your\nworkloads, return to this page to complete the remaining configuration steps.\n\n1. Use the \"Istio add-on migration instructions\" to migrate your installation to\n Cloud Service Mesh with the Google-managed control plane.\n\n Key items to be aware of during that process:\n - If you are prompted that the `custom envoy filters are not supported`.\n Simply, choose \"yes\" to continue the migration. Example:\n\n Detected custom envoy filters are not supported by Cloud Service Mesh.\n Please remove these if possible\n NAMESPACE NAME AGE\n gke-system allowconnect-cluster-local-gateway 26m\n Continue anyways? [y/N] Y\n\n - The migration instructions include the section\n *Complete a successful migration* , which performs steps to finalize your\n Cloud Service Mesh installation.\n **Important**: After performing those steps, you will no longer be able to\n rollback your changes.\n\n **Istio add-on migration instructions** :\n [Migrating from Istio on GKE to Cloud Service Mesh](/istio/docs/istio-on-gke/migrate-to-anthos-service-mesh)\n2. After you complete the migration steps and have\n [Migrated your workload to Cloud Service Mesh](/istio/docs/istio-on-gke/migrate-to-anthos-service-mesh#migrate-workloads),\n run the following commands to restart and label your ingress pods in the\n `knative-serving` namespace:\n\n 1. Restart your ingress pods:\n\n kubectl rollout restart deployment autoscaler activator webhook -n knative-serving\n\n 2. Add the `istio: ingressgateway` label:\n\n kubectl patch deployment ${INGRESS_NAME} --namespace ${INGRESS_NAMESPACE} --patch '{\"spec\": {\"template\": {\"metadata\": {\"labels\": {\"istio\": \"ingressgateway\"}}}}}'\n\nConfigure Cloud Service Mesh Ingress\n------------------------------------\n\nIn this section, the [migration script](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade/prepare) is used to\nset the\n[release channel](/service-mesh/docs/release-channels-managed-service-mesh#how_to_select_a_release_channel)\nto `asm-managed-rapid` for the Cloud Service Mesh managed control plane.\n\nRun the following command to start the migration script: \n\n ./migration-addon.sh \\\n --asm-revision asm-managed-rapid \\\n --command set-up-asm-ingress\n\nWhat's next\n-----------\n\n[Install the fleet component](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade/fleet-install-script)\n\nRollback\n--------\n\nIf you need to rollback the changes that you made through the steps above, you\ncan:\n\n- Use the migration script to delete the Cloud Service Mesh ingress.\n- Rollback the installation of Cloud Service Mesh.\n\nTo rollback the installation and configuration of Cloud Service Mesh with the\nGoogle-managed control plane:\n\n1. Run the following command to delete the Cloud Service Mesh ingress:\n\n ./migration-addon.sh --command rollback-set-up-asm-ingress\n\n The terminal output during the process looks similar to the following: \n\n Deleting Cloud Service Mesh ingress\n deployment.apps \"istio-ingressgateway\" deleted\n horizontalpodautoscaler.autoscaling \"istio-ingressgateway\" deleted\n role.rbac.authorization.k8s.io \"istio-ingressgateway-sds\" deleted\n rolebinding.rbac.authorization.k8s.io \"istio-ingressgateway-sds\" deleted\n Cloud Service Mesh ingress is successfully deleted.\n\n2. To verify the rollback, check that the `istio-ingressgateway` service\n no longer exists in the `gke-system` namespace:\n\n kubectl get deployment istio-ingressgateway -n gke-system\n\n3. [Rollback Cloud Service Mesh installation](/istio/docs/istio-on-gke/migrate-to-anthos-service-mesh#roll-back-changes)\n\n4. Run the following command to re-enable the \"*Istio add-on*\":\n\n ./migration-addon.sh --command rollback-uninstall-istio-addon\n\n5. To continue rolling back your changes to your installation's original state,\n [rollback the Istio add-on](/kubernetes-engine/enterprise/knative-serving/docs/install/on-gcp/upgrade/uninstall-istio-addon#rollback)."]]