feat: add Docker support with workflows, Dockerfile, and docker-compose

.github/workflows/docker.yml

@@ -0,0 +1,62 @@
+name: Docker
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Image version tag (e.g., 1.34.0)"
+        required: true
+        default: "latest"
+
+permissions:
+  contents: read
+
+env:
+  IMAGE_NAME: lavrushin/b4
+
+jobs:
+  docker:
+    name: Build & Push Docker Image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set version
+        id: version
+        run: |
+          if [ "${{ github.event_name }}" = "release" ]; then
+            VERSION="${{ github.event.release.tag_name }}"
+            VERSION="${VERSION#v}"
+          else
+            VERSION="${{ inputs.version }}"
+          fi
+          echo "version=${VERSION}" >> $GITHUB_OUTPUT
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          build-args: |
+            VERSION=${{ steps.version.outputs.version }}
+          tags: |
+            ${{ env.IMAGE_NAME }}:latest
+            ${{ env.IMAGE_NAME }}:${{ steps.version.outputs.version }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max