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task-kn-apply.md

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Kn-Apply Tekton Task

Abstract

The kn-apply deploys a given image to a Knative Service using kn command line interface.

Usage

Please, consider the usage example below:

---
apiVersion: tekton.dev/v1
kind: TaskRun
metadata:
  name: example-taskrun
spec:
  taskRef:
    name: kn-apply
  params:
    - name: SERVICE
      value: service-name
    - name: IMAGE
      value: image-name

You'll need to replace service-name & image-name with values of the Knative Service & Image to be deployed respectively.

In case the Container Registry requires authentication, please consider the Tekton Pipelines documentation. In a nutshell, you need to create a Kubernetes Secret describing the following attributes:

kubectl create secret docker-registry imagestreams \
  --docker-server="image-registry.openshift-image-registry.svc:5000" \
  --docker-username="${REGISTRY_USERNAME}" \
  --docker-password="${REGISTRY_TOKEN}"

Then make sure the Secret is linked with the Service-Account running the TaskRun/PipelineRun.

Params

Param Type Default Description
SERVICE string (required) Knative Service name to which the given image is deployed to
IMAGE string (required) The image that needs to be deployed to the Knative Service