add ci

.github/workflows/ci.yml

@@ -0,0 +1,46 @@
+name: Deploy to Docker Swarm (Worker Node)
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Build and push Docker image
+        run: |
+          docker build -t ghcr.io/serverussnap/imagegenerator:latest .
+          echo "${{ secrets.GHCR_TOKEN }}" | docker login ghcr.io -u serverussnap --password-stdin
+          docker push ghcr.io/serverussnap/imagegenerator:latest
+
+      - name: Deploy to Swarm Worker Node
+        uses: appleboy/ssh-action@v1.0.0
+        with:
+          host: ${{ secrets.VM_HOST }}
+          username: ${{ secrets.VM_USER }}
+          key: ${{ secrets.VM_SSH_KEY }}
+          script: |
+            docker login ghcr.io -u serverussnap -p ${{ secrets.GHCR_TOKEN }}
+            
+            if docker service inspect imagegenerator_service >/dev/null 2>&1; then
+              docker service update \
+                --image ghcr.io/serverussnap/imagegenerator:latest \
+                --publish-add published=3050,target=3000,mode=host \
+                --constraint node.hostname==worker \
+                --with-registry-auth \
+                imagegenerator_service
+            else
+              docker service create \
+                --name imagegenerator_service \
+                --publish published=3050,target=3000,mode=host \
+                --constraint node.hostname==worker \
+                --with-registry-auth \
+                ghcr.io/serverussnap/imagegenerator:latest
+            fi
+            
+            docker image prune -a -f