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71 lines
2.7 KiB
Plaintext
71 lines
2.7 KiB
Plaintext
:_content-type: ASSEMBLY
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[id="serverless-applications"]
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= Serverless applications
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include::_attributes/common-attributes.adoc[]
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:context: serverless-applications
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toc::[]
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Serverless applications are created and deployed as Kubernetes services, defined by a route and a configuration, and contained in a YAML file. To deploy a serverless application using {ServerlessProductName}, you must create a Knative `Service` object.
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.Example Knative `Service` object YAML file
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[source,yaml]
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----
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apiVersion: serving.knative.dev/v1
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kind: Service
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metadata:
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name: hello <1>
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namespace: default <2>
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spec:
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template:
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spec:
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containers:
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- image: docker.io/openshift/hello-openshift <3>
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env:
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- name: RESPONSE <4>
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value: "Hello Serverless!"
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----
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<1> The name of the application.
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<2> The namespace the application uses.
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<3> The image of the application.
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<4> The environment variable printed out by the sample application.
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You can create a serverless application by using one of the following methods:
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* Create a Knative service from the {product-title} web console.
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+
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ifdef::openshift-enterprise[]
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See xref:../../applications/creating_applications/odc-creating-applications-using-developer-perspective.adoc#odc-creating-applications-using-developer-perspective[Creating applications using the Developer perspective] for more information.
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endif::[]
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* Create a Knative service by using the `kn` CLI.
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* Create and apply a Knative `Service` object as a YAML file, by using the `oc` CLI.
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// create service using CLI
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include::modules/creating-serverless-apps-kn.adoc[leveloffset=+1]
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// offline mode
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include::modules/kn-service-offline-create.adoc[leveloffset=+1]
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// create service using YAML
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include::modules/creating-serverless-apps-yaml.adoc[leveloffset=+1]
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include::modules/verifying-serverless-app-deployment.adoc[leveloffset=+1]
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include::modules/interacting-serverless-apps-http2-gRPC.adoc[leveloffset=+1]
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// OCP only
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ifdef::openshift-enterprise[]
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// Using Knative services w/ restrictive NetworkPolicies
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include::modules/serverless-services-network-policies.adoc[leveloffset=+1]
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endif::[]
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// should maybe move to admin guide? asked serving team
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// HTTPS redirection
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include::modules/serverless-https-redirect-service.adoc[leveloffset=+1]
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// asked serving team why a user would need this for abstract rewrite, waiting for details
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[id="additional-resources_serverless-applications"]
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[role="_additional-resources"]
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== Additional resources
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* xref:../../serverless/cli_tools/kn-serving-ref.adoc#kn-serving-ref[Knative Serving CLI commands]
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* xref:../../serverless/security/serverless-ossm-with-kourier-jwt.adoc#serverless-ossm-with-kourier-jwt[Configuring JSON Web Token authentication for Knative services]
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