feat: add Gitea Actions CI/CD workflow

.gitea/workflows/deploy.yml

@@ -0,0 +1,45 @@
+name: Build & Deploy to K3s
+
+on:
+  push:
+    branches: [main]
+
+env:
+  REGISTRY: git.ordinarthurbarre.fr
+  IMAGE: git.ordinarthurbarre.fr/ordinarthur/aurelie-portfolio
+
+jobs:
+  build-and-deploy:
+    runs-on: self-hosted
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Login to Gitea Container Registry
+        run: |
+          echo "${{ secrets.REGISTRY_PASSWORD }}" | \
+            docker login ${{ env.REGISTRY }} -u ordinarthur --password-stdin
+
+      - name: Build Docker image
+        run: |
+          docker build -t ${{ env.IMAGE }}:${{ github.sha }} -t ${{ env.IMAGE }}:latest .
+
+      - name: Push to registry
+        run: |
+          docker push ${{ env.IMAGE }}:${{ github.sha }}
+          docker push ${{ env.IMAGE }}:latest
+
+      - name: Deploy to K3s
+        run: |
+          kubectl apply -f k8s/namespace.yml
+          kubectl apply -f k8s/service.yml
+          kubectl apply -f k8s/deployment.yml
+
+          kubectl -n portfolio set image deployment/aurelie-portfolio \
+            aurelie-portfolio=${{ env.IMAGE }}:${{ github.sha }}
+
+          kubectl -n portfolio rollout status deployment/aurelie-portfolio --timeout=120s
+
+      - name: Cleanup old images
+        run: |
+          docker image prune -f