add deplye yaml

.github/workflows/deploy.yml

@@ -0,0 +1,38 @@
+name: Deploy Python Chatbot Backend
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4.2.2
+
+      - name: Setup SSH
+        uses: webfactory/ssh-agent@v0.9.1
+        with:
+          ssh-private-key: ${{ secrets.VPS_SSH_KEY }}
+
+      - name: Add server to known hosts
+        run: |
+          mkdir -p ~/.ssh
+          ssh-keyscan -H ${{ secrets.VPS_IP }} >> ~/.ssh/known_hosts
+
+      - name: Sync app files to server
+        run: |
+          REMOTE_SERVER="${{ secrets.VPS_USER }}@${{ secrets.VPS_IP }}"
+          rsync -avz --exclude='.git' --exclude='.env' --exclude='__pycache__' \
+            -e "ssh" ./ $REMOTE_SERVER:/home/ubuntu/app/
+
+      - name: Install dependencies and restart service
+        run: |
+          REMOTE_SERVER="${{ secrets.VPS_USER }}@${{ secrets.VPS_IP }}"
+          ssh $REMOTE_SERVER << 'EOF'
+            /home/ubuntu/venv/bin/pip install -q -r /home/ubuntu/app/requirements.txt && \
+            sudo systemctl restart chatbot-python.service
+          EOF