automate deployment workflow

Author: smutyala1at

.github/workflows/deploy-hetzner.yaml

@@ -0,0 +1,40 @@
+name: Deploy to Hetzner
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "mimir-rag/**"
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Build Docker image
+        run: docker build -t ${{ secrets.DOCKER_HUB_USERNAME }}/mimir-rag:latest -f mimir-rag/Dockerfile mimir-rag
+
+      - name: Push image to Docker Hub
+        run: |
+          echo ${{ secrets.DOCKER_HUB_TOKEN }} | docker login -u ${{ secrets.DOCKER_HUB_USERNAME }} --password-stdin
+          docker push ${{ secrets.DOCKER_HUB_USERNAME }}/mimir-rag:latest
+
+      - name: Deploy to Hetzner via SSH
+        uses: appleboy/[email protected]
+        with:
+          host: ${{ secrets.HETZNER_HOST }}
+          username: ${{ secrets.HETZNER_USERNAME }}
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          script: |
+            docker pull ${{ secrets.DOCKER_HUB_USERNAME }}/mimir-rag:latest
+            docker stop mimir-rag || true
+            docker rm mimir-rag || true
+            docker run -d \
+              --name mimir-rag \
+              --restart unless-stopped \
+              -p 127.0.0.1:3000:3000 \
+              -v ~/.mimir-rag.env:/app/.env:ro \
+              ${{ secrets.DOCKER_HUB_USERNAME }}/mimir-rag:latest