Add github actions (for build and push the docker image)

.github/workflows/build-and-push.yaml

@@ -0,0 +1,32 @@
+name: Build and Publish Docker Image
+
+on:
+  release:
+    types: [published]
+
+env:
+  IMAGE_NAME: rbehzadan/wireguard-3proxy
+  IMAGE_TAG: ${{ github.event.release.tag_name }}
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v4
+
+      - name: Build Docker image
+        run: docker build -t ${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }} .
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_PASSWORD }}
+
+      - name: Push Docker image to Docker Hub
+        run: |
+          docker push ${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}
+          docker tag ${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }} ${{ env.IMAGE_NAME }}:latest
+          docker push ${{ env.IMAGE_NAME }}:latest