chore: run build in paralell

Author: johnf

.github/workflows/docker-publish.yml

@@ -11,7 +11,6 @@ on:
 
 env:
   GHCR_REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}
 
 jobs:
   build:
@@ -33,8 +32,10 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Prepare
-        id: platform
-        run: echo "pair=${platform//\//-}" >> "$GITHUB_OUTPUT"
+        id: prepare
+        run: |
+          echo "pair=${platform//\//-}" >> "$GITHUB_OUTPUT"
+          echo "image_name=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
         env:
           platform: ${{ matrix.platform }}
 
@@ -55,8 +56,8 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: |
-            ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}
-            # ${{ env.DOCKERHUB_REGISTRY }}/${{ env.IMAGE_NAME }}
+            ${{ env.GHCR_REGISTRY }}/${{ steps.prepare.outputs.image_name }}
+            # ${{ env.DOCKERHUB_REGISTRY }}/${{ steps.prepare.outputs.image_name }}
 
       - name: Build and push by digest
         id: build
@@ -67,9 +68,9 @@ jobs:
           platforms: ${{ matrix.platform }}
           push: ${{ github.event_name != 'pull_request' }}
           labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha,scope=buildkit-${{ steps.platform.outputs.pair }}
-          cache-to: type=gha,mode=max,scope=buildkit-${{ steps.platform.outputs.pair }}
-          outputs: ${{ github.event_name != 'pull_request' && format('type=image,"name={0}/{1}",push-by-digest=true,name-canonical=true,push=true', env.GHCR_REGISTRY, env.IMAGE_NAME) || '' }}
+          cache-from: type=gha,scope=buildkit-${{ steps.prepare.outputs.pair }}
+          cache-to: type=gha,mode=max,scope=buildkit-${{ steps.prepare.outputs.pair }}
+          outputs: ${{ github.event_name != 'pull_request' && format('type=image,"name={0}/{1}",push-by-digest=true,name-canonical=true,push=true', env.GHCR_REGISTRY, steps.prepare.outputs.image_name) || '' }}
 
       - name: Export digest
         if: github.event_name != 'pull_request'
@@ -85,7 +86,7 @@ jobs:
         if: github.event_name != 'pull_request'
         uses: actions/upload-artifact@v4
         with:
-          name: digests-${{ steps.platform.outputs.pair }}
+          name: digests-${{ steps.prepare.outputs.pair }}
           path: ${{ runner.temp }}/digests/*
           if-no-files-found: error
           retention-days: 1
@@ -100,6 +101,10 @@ jobs:
       id-token: write
 
     steps:
+      - name: Prepare
+        id: prepare
+        run: echo "image_name=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"
+
       - name: Download digests
         uses: actions/download-artifact@v4
         with:
@@ -123,8 +128,8 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: |
-            ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}
-            # ${{ env.DOCKERHUB_REGISTRY }}/${{ env.IMAGE_NAME }}
+            ${{ env.GHCR_REGISTRY }}/${{ steps.prepare.outputs.image_name }}
+            # ${{ env.DOCKERHUB_REGISTRY }}/${{ steps.prepare.outputs.image_name }}
           tags: |
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
@@ -140,11 +145,11 @@ jobs:
             $(printf "${GHCR_REGISTRY}/${IMAGE_NAME}@sha256:%s " *)
         env:
           GHCR_REGISTRY: ${{ env.GHCR_REGISTRY }}
-          IMAGE_NAME: ${{ env.IMAGE_NAME }}
+          IMAGE_NAME: ${{ steps.prepare.outputs.image_name }}
 
       - name: Inspect image
         run: docker buildx imagetools inspect "${GHCR_REGISTRY}/${IMAGE_NAME}:${VERSION}"
         env:
           GHCR_REGISTRY: ${{ env.GHCR_REGISTRY }}
-          IMAGE_NAME: ${{ env.IMAGE_NAME }}
+          IMAGE_NAME: ${{ steps.prepare.outputs.image_name }}
           VERSION: ${{ steps.meta.outputs.version }}