restructure per-image dirs + onpush paths filter; add beszel-agent-gpu image

.gitea/workflows/beszel-agent-gpu.yml

@@ -0,0 +1,70 @@
+name: beszel-agent-gpu image
+
+on:
+  push:
+    paths:
+      - beszel-agent-gpu/**
+  schedule:
+    - cron: '30 2 * * 0' # 02:30 sáng Chủ nhật (UTC), lệch giờ với gitea-mcp
+  workflow_dispatch:     # Cho phép chạy tay nếu cần
+
+env:
+  IMAGE_REPO: git.thuanle.me/public/beszel-agent-gpu
+  IMAGE: beszel-agent-gpu
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        arch:
+          # GPU NVIDIA chỉ có trên máy amd64 (server ta)
+          - amd64
+    runs-on: ${{ matrix.arch }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+
+      - name: Login to Docker Registry
+        uses: docker/login-action@v4
+        with:
+          registry: git.thuanle.me
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build Docker images
+        run: |
+          echo "Building image ${{ env.IMAGE }} for architecture: ${{ matrix.arch }}"
+
+          # --pull: luôn lấy binary / base image mới nhất, đây là cơ chế
+          # update hàng tuần của image này
+          docker build \
+            --pull \
+            -f ${{ env.IMAGE }}/Dockerfile \
+            -t ${{ env.IMAGE_REPO }}:${{ matrix.arch }}-latest \
+            --label "build_date=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" \
+            --label "commit_sha=${{ github.sha }}" \
+            ${{ env.IMAGE }}
+
+          docker push ${{ env.IMAGE_REPO }}:${{ matrix.arch }}-latest
+
+  amend-manifest:
+    runs-on: linux
+    needs: [build]
+    steps:
+      - name: Login to Docker Registry
+        uses: docker/login-action@v4
+        with:
+          registry: git.thuanle.me
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Push Docker manifest
+        run: |
+          echo "Delete existing manifest"
+          docker manifest rm ${{ env.IMAGE_REPO }}:latest || true
+
+          echo "Create new manifest"
+          docker manifest create ${{ env.IMAGE_REPO }}:latest \
+            ${{ env.IMAGE_REPO }}:amd64-latest
+
+          docker manifest push ${{ env.IMAGE_REPO }}:latest