This is the "Iris" dataset. Originally published at UCI Machine Learning Repository: Iris Data Set, this small dataset from 1936 is often used for testing out machine learning algorithms and visualizations (for example, Scatter Plot). Each row of the table represents an iris flower, including its species and dimensions of its botanical parts, sepal and petal, in centimeters.

The HTML page provides the basic code required to load the data and display it on the page (as JSON) using D3.js.

Built with blockbuilder.org

三个组件分别是：

1. Docker Client 是用户界面，它支持用户与Docker Daemon之间通信。
2. Docker Daemon运行于主机上，处理服务请求。
3. Docker Index是中央registry，支持拥有公有与私有访问权限的Docker容器镜像的备份。 三个基本要素分别是：
4. Docker Containers负责应用程序的运行，包括操作系统、用户添加的文件以及元数据。
5. Docker Images是一个只读模板，用来运行Docker容器。
6. DockerFile是文件指令集，用来说明如何自动创建Docker镜像。