第 6 章 Creating and managing serverless applications

6.1. Serverless applications using Knative services

To deploy a serverless application using OpenShift Serverless, you must create a Knative service. Knative services are Kubernetes services, defined by a route and a configuration, and contained in a YAML file.

Example Knative service YAML

apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: hello 1
  namespace: default 2
spec:
  template:
    spec:
      containers:
        - image: docker.io/openshift/hello-openshift 3
          env:
            - name: RESPONSE 4
              value: "Hello Serverless!"

1
The name of the application.
2
The namespace the application will use.
3
The image of the application.
4
The environment variable printed out by the sample application.

You can create a serverless application by using one of the following methods:

  • Create a Knative service from the OpenShift Container Platform web console.
  • Create a Knative service using the kn CLI.
  • Create and apply a YAML file.