feat: reduce release build time

fixes #196

.github/workflows/publish.yml

@@ -5,14 +5,28 @@ on:
       - master
 
 jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    outputs:
+      targets: ${{ steps.generate.outputs.targets }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: List targets
+        id: generate
+        uses: docker/bake-action/subaction/list-targets@v4
+
   build:
+    name: Build ${{ matrix.target }}
     runs-on: ubuntu-latest
+    needs:
+      - prepare
     permissions:
       contents: read
       packages: write
     strategy:
       matrix:
-        repo: ["owasp/modsecurity-crs", "ghcr.io/coreruleset/modsecurity-crs"]
+        target: ${{ fromJson(needs.prepare.outputs.targets) }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -30,25 +44,34 @@ jobs:
           driver-opts: image=moby/buildkit:master
 
       - name: Login to DockerHub
-        if: ${{ startsWith(matrix.repo, 'owasp')}}
         uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
         with:
           username: ${{ secrets.dockerhub_user }}
           password: ${{ secrets.dockerhub_token }}
 
       - name: Login to GitHub Container Registry
-        if: ${{ startsWith(matrix.repo, 'ghcr.io')}}
         uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push
+      - name: 'Build and push to Docker Hub: ${{ matrix.target }}'
+        uses: docker/[email protected]
+        with:
+          files: |
+            ./docker-bake.hcl
+          targets: ${{ matrix.target }}
+          push: true
+        env:
+          REPO: "owasp/modsecurity-crs"
+
+      - name: 'Build and push to GitHub: ${{ matrix.target }}'
         uses: docker/[email protected]
         with:
           files: |
             ./docker-bake.hcl
           push: true
+          targets: ${{ matrix.target }}
         env:
-          REPO: ${{ matrix.repo }}
+          REPO: "ghcr.io/coreruleset/modsecurity-crs"