create-github-release.yaml

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: create-github-release
  labels:
    app.kubernetes.io/version: "0.1"
  annotations:
    tekton.dev/pipelines.minVersion: "0.12.1"
    tekton.dev/tags: github
    tekton.dev/displayName: "create github release"
spec:
  description: >-
    This `task` can be used to make a github release.

    It is typical to create a Github tag at the moment of release to introduce a
    checkpoint in your source code history,but in most cases users will need compiled
    objects or other assets output, not just the raw source code.Github Releases are a
    way to track deliverables in your project. Consider them a snapshot in time of the
    source, build output, artifacts, and other metadata associated with a released version
    of your code.

  workspaces:
    - name: input
    - name: source
    - name: release-notes
  params:
    - name: TAG
      description: A git tag that will be created with this release (e.g. v1.0.0)
      type: string
    - name: REVISION
      type: string
      description: Git revision to create a release from (branch, tag, sha, ref…).
      default: master
    - name: RELEASE_FILE_NAME
      type: string
      description: Name of the file that has to be uploaded as release notes.
      default: release.md
    - name: GITHUB_TOKEN_SECRET
      type: string
      description: Name of the secret holding the github-token.
      default: github-token
    - name: GITHUB_TOKEN_SECRET_KEY
      type: string
      description: Name of the secret key holding the github-token.
      default: GITHUB_TOKEN
  steps:
    - name: create-release
      workingdir: $(workspaces.source.path)
      image: quay.io/diagrawa/github-hub:latest
      script: |
        #!/usr/bin/env bash
        set -ex

        # Appending command to upload multiple release assets.

        UPLOAD_ASSET=$(workspaces.input.path)/*
        cmd=""
        for file in $UPLOAD_ASSET
        do
          cmd="$cmd\
            --attach $file"
        done

        # Create a release
        echo "Creating release $(params.TAG)"

        hub release create \
          --commitish $(params.REVISION) \
          --file $(workspaces.release-notes.path)/$(params.RELEASE_FILE_NAME) \
          $cmd \
          $(params.TAG)

      env:
        - name: GITHUB_TOKEN
          valueFrom:
            secretKeyRef:
              name: $(params.GITHUB_TOKEN_SECRET)
              key: $(params.GITHUB_TOKEN_SECRET_KEY)