1. docker buildx install

使用 docker builder 作为 buildx 的别名。

即，安装成功后执行 docker builder ，实际上是执行 docker buildx。

1.1. 帮助

# docker buildx install --help

Usage:  docker buildx install

Install buildx as a 'docker builder' alias

Options:
      --builder string   Override the configured builder instance

1.2. 示例

默认的 builder 输出

# docker builder --help

Usage:  docker builder COMMAND

Manage builds

Commands:
  build       Build an image from a Dockerfile
  prune       Remove build cache

Run 'docker builder COMMAND --help' for more information on a command.

执行安装，正常安装没有输出

# docker buildx install

安装后的 docker builder 输出和 docker buildx 输出一样

# docker builder --help

Usage:  docker buildx [OPTIONS] COMMAND

Build with BuildKit

Options:
      --builder string   Override the configured builder instance

Management Commands:
  imagetools  Commands to work on images in registry

Commands:
  bake        Build from a file
  build       Start a build
  create      Create a new builder instance
  du          Disk usage
  inspect     Inspect current builder instance
  ls          List builder instances
  prune       Remove build cache 
  rm          Remove a builder instance
  stop        Stop builder instance
  use         Set the current builder instance
  version     Show buildx version information 

Run 'docker buildx COMMAND --help' for more information on a command.

2. 参考

• https://docs.docker.com/engine/reference/commandline/buildx_install/
• https://github.com/docker/buildx/blob/master/docs/reference/buildx_install.md