Migrate docker builder

.gitea/workflows/publish-docker.yaml

@@ -1,19 +1,47 @@
-name: Build and Publish drop-in-url-previews
-run-name: Build and Publish drop-in-url-previews
+name: Publish Docker image
+
 on: [push]
 
+env:
+  REGISTRY: git.i-am.nexus
+  IMAGE_NAME: drop-in-url-previews
+
 jobs:
-  build_and_publish:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
     runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+      attestations: write
+      pages: write
+      id-token: write
+
     steps:
-      - name: Check out repository code
+      - name: Checkout repository
         uses: actions/checkout@v4
-      - name: Build Docker image
-        run: |
-          docker build -t git.i-am.nexus/nex/drop-in-url-previews:latest .
-      - name: Log into container registry
-        run: |
-          docker login -u ${{ secrets.CR_USERNAME }} -p ${{ secrets.CR_PASSWORD }} git.i-am.nexus
-      - name: Push to container registry
-        run: |
-          docker push git.i-am.nexus/nex/drop-in-url-previews:latest
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to CR
+        uses: docker/login-action@v3
+        with:
+          registry: git.i-am.nexus
+          username: nex
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: Build and push Docker image
+        id: push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max