Knative is a Kubernetes-based platform to build, deploy, and manage modern serverless workloads.
It extends Kubernetes to provide a set of middleware components that are essential to build modern, source-centric, and container-based applications that can run anywhere: on premises, in the cloud, or even in a third-party data center.
Each of the components under the Knative project attempt to identify common patterns and codify the best practices that are shared by successful, real-world, Kubernetes-based frameworks and applications.
Knative consists of the Serving and Eventing components:
- Eventing – Management and delivery of events. Universal subscription, delivery, and management of events. Build modern apps by attaching compute to a data stream with declarative event connectivity and developer-friendly object model.
- Serving – Request-driven compute that can scale to zero. Run serverless containers on Kubernetes with ease, Knative takes care of the details of networking, autoscaling (even to zero), and revision tracking. You just have to focus on your core logic.
The Knative Serving project provides middleware primitives that enable:
- Rapid deployment of serverless containers.
- Automatic scaling up and down to zero.
- Routing and network programming.
- Point-in-time snapshots of deployed code and configurations.
- Focused API with higher level abstractions for common app use-cases.
- Stand up a scalable, secure, stateless service in seconds.
- Loosely coupled features let you use the pieces you need.
- Pluggable components let you bring your own logging and monitoring, networking, and service mesh.
- Knative is portable: run it anywhere Kubernetes runs, never worry about vendor lock-in.
- Idiomatic developer experience, supporting common patterns such as GitOps, DockerOps, ManualOps.
- Knative can be used with common tools and frameworks such as Django, Ruby on Rails, Spring, and many more.
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