added matrix for build process

.github/workflows/build.yml

@@ -26,14 +26,20 @@ jobs:
   build_push:
     name: Build and push image
     runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        variant: [amd, nvidia]
+    env:
+      VARIANT: ${{ matrix.variant }}
+      CONTAINERFILE: ${{ matrix.variant == 'amd' && './Containerfile' || './Containerfile-Nvidia' }}
+      IMAGE_NAME_SUFFIX: ${{ matrix.variant }}
 
     permissions:
       contents: read
       packages: write
       id-token: write
 
     steps:
-      # Checkout push-to-registry action GitHub repository
       - name: Checkout Push to Registry action
         uses: actions/checkout@v4
 
@@ -63,53 +69,34 @@ jobs:
           BUILD_TAGS+=("latest")
 
           if [[ "${{ github.event_name }}" == "pull_request" ]]; then
-              echo "Generated the following commit tags: "
-              for TAG in "${COMMIT_TAGS[@]}"; do
-                  echo "${TAG}"
-              done
-
               alias_tags=("${COMMIT_TAGS[@]}")
           else
               alias_tags=("${BUILD_TAGS[@]}")
           fi
 
-          echo "Generated the following build tags: "
-          for TAG in "${BUILD_TAGS[@]}"; do
-              echo "${TAG}"
-          done
-
           echo "alias_tags=${alias_tags[*]}" >> $GITHUB_OUTPUT
 
-      # Build metadata
       - name: Image Metadata
         uses: docker/metadata-action@v5
         id: meta
         with:
           images: |
-            ${{ env.MY_IMAGE_NAME }}
-
+            ${{ env.MY_IMAGE_NAME }}-${{ env.IMAGE_NAME_SUFFIX }}
           labels: |
-            io.artifacthub.package.readme-url=https://raw.githubusercontent.com/${{ github.repository }}/main/README.md
             org.opencontainers.image.description=${{ env.MY_IMAGE_DESC }}
-            org.opencontainers.image.title=${{ env.MY_IMAGE_NAME }}
+            org.opencontainers.image.title=${{ env.MY_IMAGE_NAME }}-${{ env.IMAGE_NAME_SUFFIX }}
 
-      # Build image using Buildah action
       - name: Build Image
         id: build_image
         uses: redhat-actions/buildah-build@v2
         with:
           containerfiles: |
-            ./Containerfile
-          # Postfix image name with -custom to make it a little more descriptive
-          # Syntax: https://docs.github.com/en/actions/learn-github-actions/expressions#format
-          image: ${{ env.MY_IMAGE_NAME }}
+            ${{ env.CONTAINERFILE }}
+          image: ${{ env.MY_IMAGE_NAME }}-${{ env.IMAGE_NAME_SUFFIX }}
           tags: |
             ${{ steps.generate-tags.outputs.alias_tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          oci: false
 
-      # Workaround bug where capital letters in your GitHub username make it impossible to push to GHCR.
-      # https://github.com/macbre/push-to-ghcr/issues/12
       - name: Lowercase Registry
         id: registry_case
         uses: ASzc/change-string-case-action@v6
@@ -133,25 +120,3 @@ jobs:
           image: ${{ steps.build_image.outputs.image }}
           tags: ${{ steps.build_image.outputs.tags }}
           registry: ${{ steps.registry_case.outputs.lowercase }}
-          username: ${{ env.REGISTRY_USER }}
-          password: ${{ env.REGISTRY_PASSWORD }}
-          extra-args: |
-            --compression-format=zstd
-
-      # This section is optional and only needs to be enabled if you plan on distributing
-      # your project for others to consume. You will need to create a public and private key
-      # using Cosign and save the private key as a repository secret in Github for this workflow
-      # to consume. For more details, review the image signing section of the README.
-
-      # Sign container
-      - uses: sigstore/[email protected]
-        if: github.event_name != 'pull_request'
-
-      - name: Sign container image
-        if: github.event_name != 'pull_request'
-        run: |
-          cosign sign -y --key env://COSIGN_PRIVATE_KEY ${{ steps.registry_case.outputs.lowercase }}/${{ steps.build_image.outputs.image }}@${TAGS}
-        env:
-          TAGS: ${{ steps.push.outputs.digest }}
-          COSIGN_EXPERIMENTAL: false
-          COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}