Add task-runner build to ci

Author: ChrisPenner

.github/workflows/ci.yaml

@@ -19,6 +19,7 @@ on:
 env:
   ormolu_version: 0.5.2.0
   is_published_build: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/staging') }}
+  is_task_build: ${{ github.event_name == 'push' && startsWith(github.ref, 'refs/heads/task-') }}
   exe_cache_prefix: share-ci-exe
   share_local_bin: share-api
 
@@ -56,7 +57,7 @@ jobs:
             && github.event.pull_request.base.repo.full_name == github.event.pull_request.head.repo.full_name
         with:
           commit_message: automatically run ormolu
-  build-exe:
+  build-exes:
     name: Build share-api executable
     runs-on: ubuntu-24.04
     steps:
@@ -83,12 +84,19 @@ jobs:
             --copy-bins \
             ${{ (env.is_published_build && '--ghc-options -O2') || '--fast' }}
 
-      - name: Save exes for docker build
+      - name: Save exes for share-api docker build
         uses: actions/upload-artifact@v4
         with:
           name: share-api-exe
           path: ${{env.share_local_bin}}
 
+      - name: Save exes for share-task-runner docker build
+        if: env.is_task_build
+        uses: actions/upload-artifact@v4
+        with:
+          name: share-task-runner-exe
+          path: ${{env.share_local_bin}}
+
       - name: save stack caches
         if: |
           !cancelled()
@@ -97,11 +105,11 @@ jobs:
         with:
           cache-prefix: ${{env.exe_cache_prefix}}
 
-  # A separate job for docker build because it requires elevated github token permissions.
-  docker-build:
+  # Separate jobs for the docker builds because they requires elevated github token permissions.
+  share-api-docker-build:
     env:
       container_registry: ghcr.io
-      docker_image_name: ${{ github.repository }}
+      docker_image_name: share-api
     needs: [build-exe]
     runs-on: ubuntu-24.04
     # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
@@ -158,6 +166,7 @@ jobs:
         uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
         with:
           context: ./docker/
+          file: ./docker/share-api.Dockerfile
           push: ${{ env.is_published_build }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
@@ -184,9 +193,91 @@ jobs:
           subject-digest: ${{ steps.push.outputs.digest }}
           push-to-registry: true
 
+  # Separate jobs for the docker builds because they requires elevated github token permissions.
+  share-task-runner-docker-build:
+    if: env.is_task_build
+    env:
+      container_registry: ghcr.io
+      docker_image_name: share-task-runner
+    needs: [build-exes]
+    runs-on: ubuntu-24.04
+    # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
+    permissions:
+      contents: read
+      # Allow uploading the docker image to the container registry
+      packages: write
+      # Allow creating and updating the artifact attestation
+      attestations: write
+      # Required to get user information for building attestations
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          # Don't need unison submodule for docker image build
+          submodules: false
+
+      # Downloads the artifact that contains the share-api-exe from the previous job.
+      - uses: actions/download-artifact@v4
+        with:
+          name: share-task-runner-exe
+          path: ./docker/tmp/
+
+      # Configure Docker's builder,
+      # This seems necessary to support docker cache layers.
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb # v3.3.0
+
+
+      # Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
+      - name: Log in to the Container registry
+        uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20
+        with:
+          registry: ${{ env.container_registry }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about) to extract tags and labels that will be applied to the specified image. The `id` "meta" allows the output of this step to be referenced in a subsequent step. The `images` value provides the base name for the tags and labels.
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: ${{ env.container_registry }}/${{ env.docker_image_name }}
+          tags: |
+            type=sha,priority=1000,format=short,prefix={{branch}}_{{date 'YYYY-MM-DD-HH-mm'}}_gitref-
+            type=sha,format=long
+
+      # This step uses the `docker/build-push-action` action to build the image, based on your repository's `Dockerfile`. If the build succeeds, it pushes the image to GitHub Packages.
+      # It uses the `context` parameter to define the build's context as the set of files located in the specified path. For more information, see "[Usage](https://github.com/docker/build-push-action#usage)" in the README of the `docker/build-push-action` repository.
+      # It uses the `tags` and `labels` parameters to tag and label the image with the output from the "meta" step.
+      - name: Build and push Docker image
+        id: push
+        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
+        with:
+          context: ./docker/
+          file: ./docker/task-runner.Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          # Use github actions cache for docker image layers
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          build-args: |
+            SHARE_COMMIT=${{ github.sha }}
+          # Save image locally for use in tests even if we don't push it.
+          outputs: type=docker,dest=/tmp/share-docker-image.tar # export docker image
+
+      # This step generates an artifact attestation for the image, which is an unforgeable statement about where and how it was built. It increases supply chain security for people who consume the image. For more information, see "[AUTOTITLE](/actions/security-guides/using-artifact-attestations-to-establish-provenance-for-builds)."
+      - name: Generate artifact attestation
+        uses: actions/[email protected]
+        with:
+          subject-name: ${{ env.container_registry }}/${{ env.docker_image_name}}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: true
+
   # A separate job for docker build because it requires elevated github token permissions.
   transcript-tests:
-    needs: [build-exe, docker-build]
+    needs: [build-exes, share-api-docker-build]
     runs-on: ubuntu-24.04
 
     steps: