Refactor release workflow to improve Docker image handling and streamline build steps

- Updated the image resolution step to clarify registry and image name handling.
- Replaced the manual Docker login process with the docker/login-action for enhanced security.
- Introduced Docker metadata extraction and updated the build and push steps to utilize the latest actions for better efficiency.

.gitea/workflows/release.yaml

@@ -162,7 +162,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Resolve image coordinates
+      - name: Resolve registry and image names
         id: image
         shell: bash
         run: |
@@ -172,34 +172,36 @@ jobs:
           host="${host#https://}"
           host="${host%%/*}"
           repo="$(printf '%s' "${{ gitea.repository }}" | tr '[:upper:]' '[:lower:]')"
+          image="${host}/${repo}"
           echo "registry_host=${host}" >> "${GITHUB_OUTPUT}"
-          echo "image=${host}/${repo}" >> "${GITHUB_OUTPUT}"
+          echo "repository_lower=${repo}" >> "${GITHUB_OUTPUT}"
+          echo "image=${image}" >> "${GITHUB_OUTPUT}"
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to registry
-        env:
-          REGISTRY_HOST: ${{ steps.image.outputs.registry_host }}
-          REGISTRY_USER: ${{ secrets.REGISTRY_USERNAME }}
-          REGISTRY_PASS: ${{ secrets.REGISTRY_PASSWORD }}
-          FALLBACK_USER: ${{ gitea.actor }}
-          FALLBACK_PASS: ${{ secrets.GITEA_TOKEN }}
-        shell: bash
-        run: |
-          set -eu
-          user="${REGISTRY_USER:-${FALLBACK_USER}}"
-          pass="${REGISTRY_PASS:-${FALLBACK_PASS}}"
-          if [ -z "${pass}" ]; then
-            echo "No registry password available. Set REGISTRY_PASSWORD secret."
-            exit 1
-          fi
-          printf '%s' "${pass}" | docker login "${REGISTRY_HOST}" --username "${user}" --password-stdin
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ secrets.GIT_REGISTRY || steps.image.outputs.registry_host }}
+          username: ${{ secrets.GIT_USER || gitea.actor }}
+          password: ${{ secrets.GIT_PACKAGES_TOKEN || secrets.GITEA_TOKEN }}
 
-      - name: Build and push Docker image tags
-        env:
-          IMAGE: ${{ steps.image.outputs.image }}
-          VERSION_TAG: ${{ needs.validate-tag.outputs.tag }}
-        shell: bash
-        run: |
-          set -eu
-          docker build -t "${IMAGE}:${VERSION_TAG}" -t "${IMAGE}:latest" .
-          docker push "${IMAGE}:${VERSION_TAG}"
-          docker push "${IMAGE}:latest"
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ secrets.GIT_REGISTRY || steps.image.outputs.registry_host }}/${{ steps.image.outputs.repository_lower }}
+          tags: |
+            type=raw,value=${{ needs.validate-tag.outputs.tag }}
+            type=raw,value=latest
+
+      - name: Build and push Docker image
+        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