ci: switch to K3s deploy via Forgejo registry + kubectl

- Build ARM64 image via QEMU/buildx on x86 runner
- Push to Forgejo container registry (uses built-in GITHUB_TOKEN)
- Deploy via kubectl with scoped deployer SA (docfast namespace only)
- No SSH, no secrets on infra, no Docker on k3s-mgr

.forgejo/workflows/deploy.yml

@@ -1,93 +1,53 @@
-name: Deploy to Production
+name: Build & Deploy to K3s
 
 on:
   push:
     branches: [ main ]
 
 jobs:
-  deploy:
-    name: Deploy to Server
+  build-and-deploy:
+    name: Build & Deploy
     runs-on: ubuntu-latest
 
     steps:
-    - name: Write secrets and deploy
-      uses: appleboy/ssh-action@v1.1.0
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Login to Forgejo Registry
+      uses: docker/login-action@v3
       with:
-        host: ${{ secrets.SERVER_HOST }}
-        username: ${{ secrets.SERVER_USER }}
-        key: ${{ secrets.SSH_PRIVATE_KEY }}
-        envs: STRIPE_SECRET_KEY,STRIPE_WEBHOOK_SECRET,DATABASE_PASSWORD
-        script: |
-          set -e
+        registry: git.cloonar.com
+        username: ${{ github.repository_owner }}
+        password: ${{ secrets.GITHUB_TOKEN }}
 
-          echo "🚀 Starting deployment..."
-          cd /root/docfast
+    - name: Build and Push
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: true
+        tags: |
+          git.cloonar.com/openclawd/docfast:latest
+          git.cloonar.com/openclawd/docfast:${{ github.sha }}
+        platforms: linux/arm64
 
-          # Write .env from CI secrets
-          echo "📝 Writing .env from CI secrets..."
-          printf "STRIPE_SECRET_KEY=%s\nSTRIPE_WEBHOOK_SECRET=%s\nDATABASE_PASSWORD=%s\n" "$STRIPE_SECRET_KEY" "$STRIPE_WEBHOOK_SECRET" "$DATABASE_PASSWORD" > .env
+    - name: Deploy to K3s
+      run: |
+        curl -sLO "https://dl.k8s.io/release/$(curl -sL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+        chmod +x kubectl
 
-          # Verify .env has non-empty values
-          if grep -q '=$' .env; then
-            echo "❌ ERROR: .env has empty values - secrets not configured in Forgejo!"
-            echo "Add STRIPE_SECRET_KEY, STRIPE_WEBHOOK_SECRET, DATABASE_PASSWORD in Forgejo repo settings."
-            exit 1
-          fi
-          echo "✅ .env written with $(wc -l < .env) vars"
+        echo "${{ secrets.KUBECONFIG }}" | base64 -d > /tmp/kubeconfig.yaml
 
-          git status --short || true
+        ./kubectl set image deployment/docfast \
+          docfast=git.cloonar.com/openclawd/docfast:${{ github.sha }} \
+          -n docfast --kubeconfig=/tmp/kubeconfig.yaml
 
-          echo "📥 Pulling latest changes..."
-          git fetch origin
-          git pull origin main
+        ./kubectl rollout status deployment/docfast \
+          -n docfast --kubeconfig=/tmp/kubeconfig.yaml --timeout=180s
 
-          TIMESTAMP=$(date +%Y%m%d-%H%M%S)
-          docker tag docfast-docfast:latest docfast-docfast:rollback-$TIMESTAMP || echo "No existing image to tag"
-          
-          echo "🔨 Building new Docker image..."
-          docker compose build --no-cache
-          
-          echo "⏹️ Stopping services..."
-          docker compose down --timeout 30
-          
-          echo "▶️ Starting services..."
-          docker compose up -d
-          
-          echo "⏱️ Waiting for service to be ready..."
-          for i in $(seq 1 30); do
-            if curl -f -s http://127.0.0.1:3100/health > /dev/null; then
-              echo "✅ Service is healthy!"
-              break
-            fi
-            if [ $i -eq 30 ]; then
-              echo "❌ Service failed to start - initiating rollback..."
-              docker compose down
-              ROLLBACK_IMAGE=$(docker images --format "table {{.Repository}}:{{.Tag}}" | grep "docfast-docfast:rollback-" | head -n1 | tr -s ' ' | cut -d' ' -f1)
-              if [ ! -z "$ROLLBACK_IMAGE" ]; then
-                echo "🔄 Rolling back to $ROLLBACK_IMAGE"
-                docker tag $ROLLBACK_IMAGE docfast-docfast:latest
-                docker compose up -d
-                sleep 10
-                if curl -f -s http://127.0.0.1:3100/health > /dev/null; then
-                  echo "✅ Rollback successful"
-                else
-                  echo "❌ Rollback failed - manual intervention required"
-                fi
-              fi
-              exit 1
-            fi
-            echo "⏳ Attempt $i/30 - waiting 5 seconds..."
-            sleep 5
-          done
-          
-          echo "🔍 Running post-deploy verification..."
-          bash scripts/verify-deploy.sh
-          
-          echo "🧹 Cleaning up old rollback images..."
-          docker images --format "table {{.Repository}}:{{.Tag}}" | grep "docfast-docfast:rollback-" | tail -n +6 | awk '{print $1}' | xargs -r docker rmi || true
-          
-          echo "🎉 Deployment completed successfully!"
-      env:
-        STRIPE_SECRET_KEY: ${{ secrets.STRIPE_SECRET_KEY }}
-        STRIPE_WEBHOOK_SECRET: ${{ secrets.STRIPE_WEBHOOK_SECRET }}
-        DATABASE_PASSWORD: ${{ secrets.DATABASE_PASSWORD }}
+        echo "✅ Deploy complete!"