added auto docker-hub

Author: PritishReddy18

.github/workflows/ci.yml

@@ -27,4 +27,24 @@ jobs:
       - name: run tests with pytest
         run: |
           pip install pytest
-          pytest
+          pytest
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Build and push Docker image (optimized)
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ${{ secrets.DOCKER_HUB_USERNAME }}/fastapi-app:latest
+            ${{ secrets.DOCKER_HUB_USERNAME }}/fastapi-app:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max