Update CI

.github/workflows/publish.yml

@@ -1,50 +1,36 @@
-name: Build Docker Images
-on: [push]
+name: Build and Push
 
-jobs:
-  build-docker-image:
-    strategy:
-      matrix:
-        target-cpu: ["znver3", "znver2", "skylake", "haswell", "sandybridge", "x86-64"]
+on:
+  push:
+    branches:
+      - main
 
-    name: Build for ${{ matrix.target-cpu }}
-    env:
-      DOCKER_PASSWORD: ${{ secrets.DOCKERHUB_PASSWORD }}
-      DOCKER_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
-      DOCKER_TARGET_ACCOUNT: ${{ secrets.DOCKERHUB_TARGET }}
+permissions:
+  contents: read
+  packages: write
 
+jobs:
+  build:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout sources
-        uses: actions/checkout@v3
+      - uses: docker/setup-buildx-action@v3
 
-      - name: Login to DockerHub
-        uses: docker/login-action@v2
-        if: env.DOCKER_USERNAME
+      - id: metadata
+        uses: docker/metadata-action@v5
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          images: ghcr.io/${{ github.repository }}
+          flavor: latest=true
 
-      - name: Login to ghcr
-        uses: docker/login-action@v2
+      - uses: docker/login-action@v3
         with:
           registry: ghcr.io
-          username: ${{ github.actor }}
+          username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Convert GITHUB_REPOSITORY into lowercase
-        run: |
-            echo "REPO=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}
-
-      - name: Build Docker Image
-        run: |
-            docker build -t gateway-proxy:${{ matrix.target-cpu }} --build-arg TARGET_CPU=${{ matrix.target-cpu }} .
-
-      - name: Create manifest and push it
-        if: env.DOCKER_USERNAME && github.ref == 'refs/heads/main'
-        run: |
-            docker tag gateway-proxy:${{ matrix.target-cpu }} ${{ secrets.DOCKERHUB_TARGET }}/gateway-proxy:${{ matrix.target-cpu }}
-            docker push ${{ secrets.DOCKERHUB_TARGET }}/gateway-proxy:${{ matrix.target-cpu }}
-
-            docker tag gateway-proxy:${{ matrix.target-cpu }} ghcr.io/${REPO}:${{ matrix.target-cpu }}
-            docker push ghcr.io/${REPO}:${{ matrix.target-cpu }}
+      - uses: docker/build-push-action@v6
+        with:
+          tags: ${{ steps.metadata.outputs.tags }}
+          labels: ${{ steps.metadata.outputs.tags }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          push: true