このトピックでは、Kubernetes ネットワーク ポリシーを使用して Apigee ハイブリッド クラスタ内で Cassandra Pod と Redis Pod を保護する方法について説明します。
概要
IP アドレスレベルまたはポートレベル（OSI レイヤ 3 または 4）でトラフィック フローを制御する場合は、クラスタ内のアプリケーションに Kubernetes ネットワーク ポリシーを使用できます。ネットワーク ポリシーは、アプリケーションを中心とした構造で、Pod がクラスタ内の他の Pod と通信する方法を指定するのに使用できます。
Apigee ハイブリッドでは、Kubernetes ネットワーク ポリシーを使用して Cassandra Pod を分離し、ランタイム、Synchronizer、Mart Pod などの Cassandra との通信を目的とした Pod のみを許可できます。Cassandra との通信を必要としない Ingres や Watcher の Pod など、クラスタ内の他の Pod は通信がブロックされます。
クラスタ内で通信できる Pod に制限がない場合は、Kubernetes ネットワーク ポリシーを使用する必要はありません。
[[["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。"],[[["\u003cp\u003eThis documentation explains how to use Kubernetes Network Policies to control traffic flow to Cassandra and Redis pods within an Apigee Hybrid cluster.\u003c/p\u003e\n"],["\u003cp\u003eKubernetes Network Policies allow the isolation of Cassandra pods, restricting communication to only the necessary pods like Runtime, Synchronizer, and Mart.\u003c/p\u003e\n"],["\u003cp\u003eEnabling network policies is a prerequisite and varies depending on the cluster platform, such as GKE, EKS, or AKS.\u003c/p\u003e\n"],["\u003cp\u003eThe configuration files for the Kubernetes network policies for Cassandra and Redis are located within the \u003ccode\u003e$APIGEECTL_HOME\u003c/code\u003e directory.\u003c/p\u003e\n"],["\u003cp\u003eApplying and validating the network policies involves labeling namespaces and using \u003ccode\u003ekubectl\u003c/code\u003e commands to apply and verify the configurations.\u003c/p\u003e\n"]]],[],null,["# Configuring Kubernetes network policies\n\n| You are currently viewing version 1.10 of the Apigee hybrid documentation. **This version is end of life.** You should upgrade to a newer version. For more information, see [Supported versions](/apigee/docs/hybrid/supported-platforms#supported-versions).\n\n\nThis topic explains how to use Kubernetes network policies to secure Cassandra and Redis pods\nwithin an Apigee Hybrid Cluster .\n\nOverview\n--------\n\n\nWhen you want to control traffic flow at the IP address or port level (OSI layer 3 or 4), then\nyou can use Kubernetes Network Policies for applications in your cluster. Network Policies are an\napplication-centric construct you can use to specify how a pod is allowed to communicate with\nother pods in your cluster.\n\n\nIn Apigee hybrid you can use Kubernetes Network Policies to isolate Cassandra pods so that only\npods that are intended to communicate with Cassandra are allowed to, such as the Runtime,\nSynchronizer, and Mart pods. Other pods in the cluster like Ingres and Watcher pods that do not\nneed to communicate with Cassandra are blocked from doing so.\n\n\nIf you have no restrictions on which pods can interact within your cluster, you do not need to\nuse Kubernetes network policies.\n\nPrerequisites\n-------------\n\n- Enable network policies in your cluster.\n - **GKE** : See [Enabling\n network policy enforcement](/kubernetes-engine/docs/how-to/network-policy#enabling_network_policy_enforcement).\n - **EKS** : See [Installing\n the Calico network policy engine add-on](https://docs.aws.amazon.com/eks/latest/userguide/calico.html).\n - **AKS** : See [Secure\n traffic between pods using network policies in Azure Kubernetes Service (AKS)](https://docs.microsoft.com/en-us/azure/aks/use-network-policies).\n - Other platforms: look for instructions to enable network policies on your cluster from your specific platform vendor.\n- A currently running Apigee hybrid cluster, version 1.8 or newer.\n\nProcedure\n---------\n\nIf you are running hybrid version 1.8.x, download and extract the newest Apigee release\npackage.\n\n### Linux\n\n```\ncurl -LO \\\n https://storage.googleapis.com/apigee-release/hybrid/apigee-hybrid-setup/1.10.5/apigeectl_linux_64.tar.gz\n```\n\n### Mac OS\n\n```\ncurl -LO \\\n https://storage.googleapis.com/apigee-release/hybrid/apigee-hybrid-setup/1.10.5/apigeectl_mac_64.tar.gz\n```\n\n### Windows\n\n```\ncurl -LO ^\n https://storage.googleapis.com/apigee-release/hybrid/apigee-hybrid-setup/1.10.5/apigeectl_windows_64.zip\n```\n\n\nThe configuration files for the Kubernetes network policies for Cassandra and Redis are in the\nfollowing directory structure within your `$APIGEECTL_HOME` directory: \n\n```scdoc\n └── apigeectl\n └── examples\n └── network-policies\n └── securing-cassandra-redis-pods\n ├── README.md\n ├── base\n │ └── cluster-scoped-communication\n │ ├── cassandra\n │ │ ├── kustomization.yaml\n │ │ ├── networkpolicy-cassandra-allow-controller.yaml\n │ │ ├── networkpolicy-cassandra-allow-intranode.yaml\n │ │ ├── networkpolicy-cassandra-allow-mart.yaml\n │ │ ├── networkpolicy-cassandra-allow-runtime.yaml\n │ │ ├── networkpolicy-cassandra-alow-sync.yaml\n │ │ ├── networkpolicy-cassandra-create-user.yaml\n │ │ ├── networkpolicy-cassandra-monitoring.yaml\n │ │ └── networkpolicy-cassandra-remove-dc.yaml\n │ └── redis\n │ ├── kustomization.yaml\n │ ├── networkpolicy-redis-envoy.yaml\n │ └── networkpolicy-redis.yaml\n └── overlays\n └── ORG_NAME\n └── kustomization.yaml\n```\n\nWhere \u003cvar translate=\"no\"\u003eORG_NAME\u003c/var\u003e is the name of your Apigee organization.\n\n1. Label the namespaces with the following command: \n\n kubectl label namespace apigee app=apigee\n kubectl label namespace apigee-system app=apigee-system\n\n2. Apply the network policies with the following command: \n\n ```\n kubectl apply -k ${APIGEECTL_HOME}/examples/network-policies/securing-cassandra-redis-pods/overlays/ORG_NAME\n ```\n3. Validate that the network policies were applied with the following command: \n\n ```\n kubectl get netpol -n apigee\n ```\n\n\n The following network policies should be created in the `apigee` namespace: \n\n ```text\n NAME POD-SELECTOR AGE\n cassandra-from-mart app=apigee-cassandra 4d5h\n cassandra-from-runtime app=apigee-cassandra 4d5h\n cassandra-from-sync app=apigee-cassandra 4d5h\n cassandra-to-cassandra app=apigee-cassandra 4d5h\n controller-to-cassandra app=apigee-cassandra 4d5h\n redis-from-redisenvoy app=apigee-redis 3d18h\n redisenvoy-from-runtime app=apigee-redis-envoy 3d18h\n \n ```"]]
