# Capabilities Catalog

A `Capability` is a specific feature or API that a `Topology` offers. `Interpret` logic uses these capabilities to execute a `Score`.

This list is primarily for developers **writing new Topologies or Scores**. As a user, you just need to know that the `Topology` you pick (like `K8sAnywhereTopology`) provides the capabilities your `Scores` (like `ApplicationScore`) need.

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- [Capabilities Catalog](#capabilities-catalog)
  - [Kubernetes & Application](#kubernetes-application)
  - [Monitoring & Observability](#monitoring-observability)
  - [Networking (Core Services)](#networking-core-services)
  - [Networking (Hardware & Host)](#networking-hardware-host)

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## Kubernetes & Application

- **K8sClient**: Provides an authenticated client to interact with a Kubernetes API (create/read/update/delete resources).
- **HelmCommand**: Provides the ability to execute Helm commands (install, upgrade, template).
- **TenantManager**: Provides methods for managing tenants in a multi-tenant cluster.
- **Ingress**: Provides an interface for managing ingress controllers and resources.

## Monitoring & Observability

- **Grafana**: Provides an API for configuring Grafana (datasources, dashboards).
- **Monitoring**: A general capability for configuring monitoring (e.g., creating Prometheus rules).

## Networking (Core Services)

- **DnsServer**: Provides an interface for creating and managing DNS records.
- **LoadBalancer**: Provides an interface for configuring a load balancer (e.g., OPNsense, MetalLB).
- **DhcpServer**: Provides an interface for managing DHCP leases and host bindings.
- **TftpServer**: Provides an interface for managing files on a TFTP server (e.g., iPXE boot files).

## Networking (Hardware & Host)

- **Router**: Provides an interface for configuring routing rules, typically on a firewall like OPNsense.
- **Switch**: Provides an interface for configuring a physical network switch (e.g., managing VLANs and port channels).
- **NetworkManager**: Provides an interface for configuring host-level networking (e.g., creating bonds and bridges on a node).