fix action to push image to docker hub

.github/workflows/build_and_push_to_docker_hub.yml

@@ -1,4 +1,4 @@
-name: build + run.sh
+name: build + push to docker hub
 
 on:
   push:
@@ -17,14 +17,21 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - name: Build container image
-        run: docker build -t altserver:latest .
+      # Step 2: Set up Docker
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
 
-      # Push the image to docker hub
-      - name: Push image to Docker Hub
-        run: |
-          echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
-          docker tag altserver:latest ${{ secrets.DOCKER_USERNAME }}/altserver:latest
-          docker push ${{ secrets.DOCKER_USERNAME }}/altserver:latest
+      # Step 3: Log in to Docker Hub
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
 
+      # Step 4: Build the Docker image
+      - name: Build Docker image
+        run: docker build -t ${{ secrets.DOCKER_USERNAME }}/altserver-docker:latest .
 
+      # Step 5: Push the Docker image to Docker Hub
+      - name: Push Docker image
+        run: docker push ${{ secrets.DOCKER_USERNAME }}/altserver-docker:latest