Kubernetes NetworkPolicy for Egress Traffic Control
Tutorials that teach this
Docs explaining this concept
Prerequisites
- Concept Kyma Environment The concept name was not provided, so a precise definition cannot be produced from the available sources. Based on the source snippets, the **Kyma environment** is a platform-as-a-service offering within [SAP Business Technology Platform (SAP BTP)](https://help.sap.com/docs/btp/sap-business-technology-platform/15547f7e7ecd47ee9fa052b0e18c7b0a?locale=en-US&state=PRODUCTION&version=Cloud) that allows developers to build, extend, and run applications and services. It supports the consumption of SAP BTP services and uses availability zones to provide resilience and high availability for workloads.
- Concept Kubernetes Namespaces The provided sources do not contain a named concept to define — the concept supplied is "undefined." Based on the available source snippets, which cover topics such as [Kyma Runtime basic concepts](https://help.sap.com/docs/btp/sap-business-technology-platform/4a0dd09368ce40bfa3c99cae46de49e1?locale=en-US&state=PRODUCTION&version=Cloud) and [registry cache configuration](https://help.sap.com/docs/btp/sap-business-technology-platform/0771999d5751423188b55344a8b284e2?locale=en-US&state=PRODUCTION&version=Cloud), there is insufficient information to produce a grounded definition without a valid concept name. Please provide a specific SAP developer concept to define.
- Concept Kyma Istio Service Mesh Module The concept name is not defined in the provided sources, so a precise definition cannot be grounded. Based on the available source snippets, the [Istio module](https://help.sap.com/docs/btp/sap-business-technology-platform/26ffe00c24574db58697992b93f397ac?locale=en-US&state=PRODUCTION&version=Cloud) is a [Kyma module](https://help.sap.com/docs/btp/sap-business-technology-platform/0dda141a58d54f29a860a4b3164bf4a9?locale=en-US&state=PRODUCTION&version=Cloud) that developers use to manage and configure the Istio service mesh within SAP BTP, Kyma Runtime. Using Kyma's modular approach, developers can install only the modules they need, and with the Istio module they can expose workloads via Istio VirtualService or Gateway API.
- Concept Istio Sidecar Proxy Injection The concept name was not provided, but based on the sources, this definition covers **Istio Service Mesh in SAP BTP, Kyma Runtime**. Istio Service Mesh is a infrastructure layer used in SAP BTP, Kyma runtime that manages service-to-service communication through [Istio sidecar proxies](https://help.sap.com/docs/btp/sap-business-technology-platform/ca84edb503ce4999b07237e5eed9eefc?locale=en-US&state=PRODUCTION&version=Cloud) injected alongside workloads. Developers use it to secure traffic between services with mutual TLS (mTLS), expose workloads via [TLS or mTLS Gateways](https://help.sap.com/docs/btp/sap-business-technology-platform/e7c6c6a2b47744dbaa405b422e454303?locale=en-US&state=PRODUCTION&version=Cloud), and control network policies using resources such as the Sidecar resource to minimize load and footprint. It also provides troubleshooting capabilities for issues such as connection refused errors or incompatible sidecar versions after module updates.
- Concept Kyma Environment on SAP BTP The concept name is missing or undefined, and the provided sources do not contain enough overlapping detail to infer a single, well-defined SAP developer concept. Could you clarify the concept you'd like defined (for example, "kubectl," "Kyma Instance," or "CAP Operator")? This will ensure the definition is accurate and fully grounded in the provided sources.