Add image release

.github/workflows/release.yml

@@ -78,4 +78,74 @@ jobs:
             src/build/release/ocf-amd64
             src/build/release/ocf-arm64
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  publish-docker-images:
+    runs-on: ubuntu-22.04
+    needs: build
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - dockerfile: ./docker/dispatcher/Dockerfile
+            image: ocf
+    permissions:
+      contents: read
+      packages: write
+      # This is used to complete the identity challenge
+      # with sigstore/fulcio when running outside of PRs.
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Get release version
+        id: get_version
+        run: |
+          echo "RELEASE_TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+      - name: Checkout release tag
+        run: |
+          git fetch --tags --all --force
+          git checkout tags/${{ env.RELEASE_TAG }}
+
+      # Set up BuildKit Docker container builder to be able to build
+      # multi-platform images and export cache
+      # https://github.com/docker/setup-buildx-action
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
+        with:
+          images: ${{ env.REGISTRY }}/${{ matrix.image }}
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
+        with:
+          context: .
+          file: ${{ matrix.dockerfile }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          platforms: linux/amd64,linux/arm64
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          build-args: |
+            VERSION=${{ env.RELEASE_TAG }}

docker/dispatcher/Dockerfile

@@ -0,0 +1,19 @@
+
+FROM alpine:edge
+
+ARG VERSION
+
+WORKDIR /app
+
+RUN case "$TARGETPLATFORM" in \
+      "linux/amd64")  URL="https://github.com/ResearchComputer/OpenComputeFramework/releases/download/${{VERSION}}/ocf-amd64" ;; \
+      "linux/arm64")  URL="https://github.com/ResearchComputer/OpenComputeFramework/releases/download/${{VERSION}}/ocf-arm64" ;; \
+      *) echo "Unsupported platform: $TARGETPLATFORM" && exit 1 ;; \
+    esac && \
+    curl -L "$URL" > ocf && \
+    chmod +x ocf
+
+
+RUN apk --no-cache add ca-certificates tzdata
+
+ENTRYPOINT ["/app/ocf"]