Create release.yml

.github/workflows/release.yml

@@ -0,0 +1,45 @@
+name: Release
+on:
+    release:
+        types:
+            - published
+jobs:
+    register:
+        name: Package, Publish, and Register
+        runs-on:
+            - ubuntu-latest
+        steps:
+            - id: checkout
+              name: Checkout code
+              uses: actions/checkout@v2
+            - if: ${{ github.event_name != 'pull_request' || ! github.event.pull_request.head.repo.fork }}
+              name: Login to GitHub Package Registry
+              uses: docker/login-action@v1
+              with:
+                registry: ghcr.io
+                username: ${{ github.repository_owner }}
+                password: ${{ secrets.GHCR_TOKEN }}
+            - id: setup-pack
+              uses: buildpacks/github-actions/[email protected]
+            - id: package
+              run: |
+                #!/usr/bin/env bash
+                set -euo pipefail
+                BP_ID="$(cat buildpack.toml | yj -t | jq -r .buildpack.id)"
+                VERSION="$(cat buildpack.toml | yj -t | jq -r .buildpack.version)"
+                PACKAGE="${REPO}/$(echo "$BP_ID" | sed 's/\//_/g')"
+                pack buildpack package --publish ${PACKAGE}:${VERSION}
+                DIGEST="$(crane digest ${PACKAGE}:${VERSION})"
+                echo "::set-output name=bp_id::$BP_ID"
+                echo "::set-output name=version::$VERSION"
+                echo "::set-output name=address::${PACKAGE}@${DIGEST}"
+              shell: bash
+              env:
+                REPO: ghcr.io/${{ github.repository_owner }}/buildpacks
+            - id: register
+              uses: docker://ghcr.io/buildpacks/actions/registry/request-add-entry:4.8.0
+              with:
+                token:   ${{ secrets.PUBLIC_REPO_TOKEN }}
+                id:      ${{ steps.package.outputs.bp_id }}
+                version: ${{ steps.package.outputs.version }}
+                address: ${{ steps.package.outputs.address }}