change dockerfile and add workflow

.github/workflows/docker-image.yml

@@ -0,0 +1,36 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/my-image:latest
+          platforms: linux/386,linux/amd64,linux/arm/v5,linux/arm/v7,linux/arm64

Dockerfile

@@ -15,4 +15,5 @@ RUN \
 COPY ./main.py /app
 COPY cctv_patched.py /app/yt_dlp/extractor/cctv.py
 
-CMD python3 /app/main.py
+ENTRYPOINT ["python3","/app/main.py"]
+

README.md

@@ -19,7 +19,7 @@ https://tv.cctv.com/lm/gzsbqlx/index.shtml
 ```
 git clone https://github.com/by-justin/cctvdownloader
 docker build -t cctvdownloader .
-docker run --rm -v ./data:/data cctvdownloader python3 /app/main.py --help
+docker run --rm -v ./data:/data cctvdownloader --help
 ```
 
 因为某些奇怪的原因, 国内访问会 403，要代理 `hls.cntv.cdn20.com`。在 clash 里面添加