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.gitea/workflows/ci.yaml

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+# .gitea/workflows/ci.yaml
+name: Build and Push TFTP Docker Image
+
+on:
+  push:
+    branches: [main, develop]
+    tags: ['*']
+
+env:
+  DOCKER_BUILDKIT: "1"
+  BUILDX_NO_DEFAULT_ATTESTATIONS: "1"
+
+jobs:
+  docker-build-push:
+    runs-on: ubuntu-latest-amd64
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Debug branch info
+        run: |
+          echo "📋 Branch Information:"
+          echo "  github.ref: ${{ github.ref }}"
+          echo "  github.ref_name: ${{ github.ref_name }}"
+          echo "  github.event_name: ${{ github.event_name }}"
+
+      - name: Setup Docker Buildx and Login
+        run: |
+          # 设置 QEMU 支持多架构
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes 2>/dev/null || true
+
+          # 创建 buildx builder
+          docker buildx create --use --name tftpd_builder \
+            --driver docker-container \
+            --driver-opt network=host \
+            --driver-opt image=moby/buildkit:buildx-stable-1 \
+            --driver-opt env.BUILDKIT_STEP_LOG_MAX_SIZE=50000000 \
+            --driver-opt env.BUILDKIT_STEP_LOG_MAX_SPEED=10000000 \
+            || docker buildx use tftpd_builder
+          docker buildx inspect --bootstrap
+
+          # 登录 Docker Registry
+          echo "${{ secrets.BUILD_TOKEN }}" | docker login ${{ gitea.server_url }} -u ${{ gitea.actor }} --password-stdin
+
+      - name: Determine Docker tag
+        id: tag
+        run: |
+          if [ "${{ github.ref_name }}" = "main" ]; then
+            TAG="latest"
+          elif [ "${{ github.ref_name }}" = "develop" ]; then
+            TAG="develop"
+          elif [[ "${{ github.ref }}" == refs/tags/* ]]; then
+            TAG="${{ github.ref_name }}"
+          else
+            TAG="${{ github.ref_name }}"
+          fi
+          echo "tag=${TAG}" >> $GITHUB_OUTPUT
+          echo "📦 Docker tag: ${TAG}"
+
+      - name: Build and push multi-arch Docker image
+        run: |
+          # 移除 URL 中的 https:// 前缀
+          REGISTRY=$(echo "${{ gitea.server_url }}" | sed 's|https\?://||')
+          IMAGE_NAME="${REGISTRY}/${{ gitea.repository }}"
+          TAG="${{ steps.tag.outputs.tag }}"
+          FINAL_IMAGE_TAG="${IMAGE_NAME}:${TAG}"
+
+          echo "🏗️ Building and pushing image: ${FINAL_IMAGE_TAG}"
+          echo "  Platforms: linux/amd64, linux/arm64"
+
+          # 设置 BuildKit 优化参数
+          export BUILDKIT_PROGRESS=plain
+
+          docker buildx build --pull --push \
+            -t "${FINAL_IMAGE_TAG}" \
+            --platform linux/amd64,linux/arm64 \
+            --provenance=false \
+            --sbom=false \
+            -f Dockerfile .
+
+          echo ""
+          echo "✅ Build and push completed!"
+          echo "🐳 Image: ${FINAL_IMAGE_TAG}"

Dockerfile

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+FROM alpine:latest
+
+RUN apk add --no-cache tftp-hpa curl
+
+RUN mkdir -p /var/lib/tftpboot
+
+VOLUME /var/lib/tftpboot
+
+EXPOSE 69/udp
+
+COPY entrypoint.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+WORKDIR /var/lib/tftpboot
+
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]

entrypoint.sh

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+#!/bin/sh
+
+TFTPBOOT_DIR="/var/lib/tftpboot"
+
+if [ "$DOWNLOAD_NETBOOT_XYZ" = "true" ]; then
+  echo "DOWNLOAD_NETBOOT_XYZ is true. Downloading netboot.xyz files..."
+
+  mkdir -p "$TFTPBOOT_DIR"
+
+  curl -o "$TFTPBOOT_DIR/netboot.xyz-arm64.efi" https://boot.netboot.xyz/ipxe/netboot.xyz-arm64.efi
+  if [ $? -ne 0 ]; then
+    echo "Error downloading netboot.xyz-arm64.efi"
+  fi
+
+  curl -o "$TFTPBOOT_DIR/netboot.xyz.efi" https://boot.netboot.xyz/ipxe/netboot.xyz.efi
+  if [ $? -ne 0 ]; then
+    echo "Error downloading netboot.xyz.efi"
+  fi
+
+  echo "Download complete."
+else
+  echo "DOWNLOAD_NETBOOT_XYZ is not true or not set. Skipping netboot.xyz file download."
+fi
+
+exec /usr/sbin/in.tftpd -L -vvv -u ftp --secure --address "0.0.0.0:69" "$TFTPBOOT_DIR"