Updated workflow to publish docker image

.github/workflows/release.yml

@@ -51,7 +51,7 @@ jobs:
           echo "BINARY_NAME=$BINARY_NAME" >> $GITHUB_ENV
           echo "GOOS=$GOOS" >> $GITHUB_ENV
           echo "GOARCH=$GOARCH" >> $GITHUB_ENV
-      - name: Build
+      - name: Build binary
         run: |
           go build -o "$BINARY_NAME" -v ./src/
       - name: Release
@@ -62,3 +62,41 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  build:
+    name: Build/publish container image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+    needs: release
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Login to ghcr.io
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and push
+        id: build-and-push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository }}:latest
+            ghcr.io/${{ github.repository }}:${{ github.event.release.tag_name }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          platforms: linux/amd64,linux/386