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08_buildx/8.2_buildx.md
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08_buildx/8.2_buildx.md
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## 使用 Buildx 构建镜像
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### 使用
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你可以直接使用 `docker buildx build` 命令构建镜像。
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```bash
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$ docker buildx build .
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[+] Building 8.4s (23/32)
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=> ...
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```
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Buildx 使用 [BuildKit 引擎](8.1_buildkit.md) 进行构建,支持许多新的功能,具体参考 [Buildkit](8.1_buildkit.md) 一节。
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#### 使用 `bake`
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`docker buildx bake` 是一个高级构建命令,支持从 HCL、JSON 或 Compose 文件中定义构建目标,实现复杂的流水线构建。
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```bash
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## 从 docker-compose.yml 构建所有服务
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$ docker buildx bake
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## 仅构建指定目标
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$ docker buildx bake web
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```
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#### 生成 SBOM
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Buildx 支持在构建时直接生成 SBOM (Software Bill of Materials),这对于软件供应链安全至关重要。
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```bash
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$ docker buildx build --sbom=true -t myimage .
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```
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该命令会在构建结果中包含 SPDX 或 CycloneDX 格式的 SBOM 数据。
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### 官方文档
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* https://docs.docker.com/engine/reference/commandline/buildx/
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