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第 6 章 Creating and managing serverless applications

6.1. Serverless applications using Knative services
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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!"
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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.
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