Knative Serving supports developers who want to create, deploy, and manage cloud-native applications. It provides a set of objects as Kubernetes custom resource definitions (CRDs) that define and control the behavior of serverless workloads on an {product-title} cluster.
Developers use these CRDs to create custom resource (CR) instances that can be used as building blocks to address complex use cases. For example:
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Rapidly deploying serverless containers.
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Automatically scaling pods.
- Service
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The
service.serving.knative.devCRD automatically manages the life cycle of your workload to ensure that the application is deployed and reachable through the network. It creates a route, a configuration, and a new revision for each change to a user created service, or custom resource. Most developer interactions in Knative are carried out by modifying services. - Revision
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The
revision.serving.knative.devCRD is a point-in-time snapshot of the code and configuration for each modification made to the workload. Revisions are immutable objects and can be retained for as long as necessary. - Route
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The
route.serving.knative.devCRD maps a network endpoint to one or more revisions. You can manage the traffic in several ways, including fractional traffic and named routes. - Configuration
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The
configuration.serving.knative.devCRD maintains the desired state for your deployment. It provides a clean separation between code and configuration. Modifying a configuration creates a new revision.