Chapter 7. Invoking functions

Prerequisites

• The OpenShift Serverless Operator and Knative Serving are installed on the cluster.
• You have installed the Knative (kn) CLI.
• You have created a project or have access to a project with the appropriate roles and permissions to create applications and other workloads in OpenShift Container Platform.
• You must have already deployed the function that you want to invoke.

Procedure

• Invoke a function:

  $ kn func invoke

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  • The kn func invoke command only works when there is either a local container image currently running, or when there is a function deployed in the cluster.
  • The kn func invoke command executes on the local directory by default, and assumes that this directory is a function project.