refactor(ci): Use docker/build-push-action to build docker images

Replace the build-docker.sh script with a GitHub action to standardize
the ci workflow and reduce complexity.

.github/scripts/build-docker.sh

@@ -17,16 +17,13 @@ docker build \
   --tag "savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}" \
   .
 
-
-docker tag \
-  "savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}" \
-  "ghcr.io/savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}"
-docker push "ghcr.io/savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}"
-
 if [ "${PUBLISH_DOCKER_IMAGE}" != "true" ]; then
   exit 0
 fi
 
+docker tag \
+  "savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}" \
+  "ghcr.io/savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}"
 
 docker push "savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}"
-#docker push "ghcr.io/savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}"
+docker push "ghcr.io/savonet/liquidsoap-ci-build:${TAG}_${ARCHITECTURE}"

.github/workflows/ci.yml

@@ -645,16 +645,24 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USER }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
       - name: Login to GitHub Container Registry
-        #        if: needs.build_details.outputs.publish_docker_image == 'true'
+        if: needs.build_details.outputs.publish_docker_image == 'true'
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Build docker image
-        env:
-          PUBLISH_DOCKER_IMAGE: ${{ needs.build_details.outputs.publish_docker_image }}
-        run: .github/scripts/build-docker.sh "${{ steps.debian_package.outputs.deb-file }}" "${{ steps.debian_debug_package.outputs.deb-file }}" "${{ needs.build_details.outputs.branch }}" "${{ matrix.platform }}"
+      - name: Build and push docker image
+        uses: docker/build-push-action@v6
+        with:
+          build-args: |
+            "DEB_FILE=${{ steps.debian_package.outputs.deb-file }}"
+            "DEB_DEBUG_FILE=${{ steps.debian_debug_package.outputs.deb-file }}"
+          context: .
+          file: .github/docker/debian.dockerfile
+          tags: |
+            "savonet/liquidsoap-ci-build:${{ needs.build_details.outputs.branch }}_${{ matrix.platform }}"
+            "ghcr.io/savonet/liquidsoap-ci-build:${{ needs.build_details.outputs.branch }}_${{ matrix.platform }}"
+          push: ${{ needs.build_details.outputs.publish_docker_image }}
 
   build_docker_alpine:
     runs-on: ${{ matrix.runs-on }}