> ## Documentation Index
> Fetch the complete documentation index at: https://radarhq.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Knative serving & eventing visibility

> Trace Knative in Radar: the full Serving chain from Route through Revision to Pod, plus Eventing flows from sources through Brokers and Triggers.

[Knative](https://knative.dev/) extends Kubernetes with serverless capabilities: scale-to-zero, request-driven autoscaling, event-driven architectures, and simplified service deployment.

### What Radar Shows

**Topology:** Full Knative Serving chain  -  Route → KnativeService → Configuration → Revision → Deployment → Pod. Eventing flow  -  PingSource → Broker → Trigger → subscriber target. See how traffic is split across revisions, which configurations are active, and how events flow from sources through brokers to triggers.

<Frame caption="Knative in Topology View  -  Serving chain and Eventing flow">
  <img src="https://mintcdn.com/skyhook/WMkyX9-pHguEy9dC/images/oss/knative-topology.png?fit=max&auto=format&n=WMkyX9-pHguEy9dC&q=85&s=038d97c9ffde657a8947fe17abcd73e4" alt="Knative Topology" width="1252" height="183" data-path="images/oss/knative-topology.png" />
</Frame>

**KnativeService Detail View:**

* Status with URL and ingress readiness
* Latest ready and latest created revision links
* Scaling configuration (min/max scale, concurrency, timeout)
* Traffic split across revisions with percentage bars
* Container template (image, ports, env, resources)
* Conditions (Ready, RoutesReady, ConfigurationsReady)

<Frame caption="KnativeService Detail View  -  URL, scaling, traffic splits, and conditions">
  <img src="https://mintcdn.com/skyhook/WMkyX9-pHguEy9dC/images/oss/knative-service-detail.png?fit=max&auto=format&n=WMkyX9-pHguEy9dC&q=85&s=62883388c8a008dc3607a622357b1735" alt="Knative Service Detail" width="1600" height="900" data-path="images/oss/knative-service-detail.png" />
</Frame>

**Revision Detail View:**

* Container image with tag
* Concurrency model and container concurrency limit
* Timeout and scaling bounds (min/max)
* Traffic percentage (active vs inactive)
* Conditions (Ready, ContainerHealthy, ResourcesAvailable, Active)

**Route Detail View:**

* URL and domain
* Traffic targets with revision names and percentage distribution
* Conditions (Ready, AllTrafficAssigned, IngressReady)

**Configuration Detail View:**

* Latest created and latest ready revision references
* Generation tracking
* Conditions (Ready)

**Broker Detail View:**

* Address (internal URL for event delivery)
* Delivery configuration (dead letter sink, retry, backoff)
* Conditions (Ready, Addressable, FilterReady, IngressReady, TriggerChannelReady)

**Trigger Detail View:**

* Broker reference
* Subscriber target (service, URI, or Kubernetes reference)
* Event filter attributes
* Delivery configuration (dead letter sink)
* Conditions (Ready, BrokerReady, SubscriberResolved, DependencyReady)

**Source Detail Views (PingSource, ApiServerSource, ContainerSource, SinkBinding):**

* Sink target reference
* Source-specific configuration:
  * PingSource: cron schedule, data payload, content type
  * ApiServerSource: API resources watched, event mode, service account
  * ContainerSource: container image and arguments
  * SinkBinding: subject reference (Deployment, Job, etc.)
* Conditions (Ready, Deployed, SinkProvided)

**Networking Detail Views (Ingress, Certificate, ServerlessService):**

* KnativeIngress: ingress class, visibility, TLS hosts, rules with path/host routing
* KnativeCertificate: domain names, DNS names, not-after expiry
* ServerlessService: mode (Proxy/Serve), network status

**Flow Detail Views (Sequence, Parallel):**

* Sequence: ordered list of steps with subscriber references
* Parallel: branches with filter and subscriber configurations
* Reply/channel template settings

**Resource Browser:** Smart columns show status, URLs, latest revisions, traffic splits, schedules, sinks, brokers, subscribers, and filters at a glance.

### Supported CRDs

| CRD               | Group                                      | Topology | Detail View | AI Summary |
| ----------------- | ------------------------------------------ | -------- | ----------- | ---------- |
| Service           | `serving.knative.dev/v1`                   | Yes      | Yes         | -          |
| Configuration     | `serving.knative.dev/v1`                   | Yes      | Yes         | -          |
| Revision          | `serving.knative.dev/v1`                   | Yes      | Yes         | -          |
| Route             | `serving.knative.dev/v1`                   | Yes      | Yes         | -          |
| DomainMapping     | `serving.knative.dev/v1beta1`              | -        | Yes         | -          |
| Broker            | `eventing.knative.dev/v1`                  | Yes      | Yes         | -          |
| Trigger           | `eventing.knative.dev/v1`                  | Yes      | Yes         | -          |
| EventType         | `eventing.knative.dev/v1beta2`             | -        | Yes         | -          |
| Channel           | `messaging.knative.dev/v1`                 | -        | Yes         | -          |
| InMemoryChannel   | `messaging.knative.dev/v1`                 | -        | Yes         | -          |
| Subscription      | `messaging.knative.dev/v1`                 | -        | Yes         | -          |
| PingSource        | `sources.knative.dev/v1`                   | Yes      | Yes         | -          |
| ApiServerSource   | `sources.knative.dev/v1`                   | Yes      | Yes         | -          |
| ContainerSource   | `sources.knative.dev/v1`                   | Yes      | Yes         | -          |
| SinkBinding       | `sources.knative.dev/v1`                   | Yes      | Yes         | -          |
| Sequence          | `flows.knative.dev/v1`                     | -        | Yes         | -          |
| Parallel          | `flows.knative.dev/v1`                     | -        | Yes         | -          |
| Ingress           | `networking.internal.knative.dev/v1alpha1` | -        | Yes         | -          |
| Certificate       | `networking.internal.knative.dev/v1alpha1` | -        | Yes         | -          |
| ServerlessService | `networking.internal.knative.dev/v1alpha1` | -        | Yes         | -          |