feat: automatically build a docker image

.github/workflows/build_docker.yml

@@ -0,0 +1,52 @@
+name: Build Docker image
+
+on:
+  push:
+    branches:
+      - '*'
+    tags:
+      - v*
+  pull_request:
+    branches: 
+      - master
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Docker meta
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: ghcr.io/${{ github.repository }}
+        tags: |
+          type=edge
+          type=ref,event=pr
+          type=ref,event=branch,prefix=branch-
+          type=semver,pattern={{version}}
+          type=semver,pattern={{major}}.{{minor}}
+          type=semver,pattern={{major}}
+          type=semver,pattern=latest                              
+
+    - name: Login to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.DOCKER_TOKEN }}
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Build and push
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: true
+        file: ./Dockerfile
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}