ZFSSA CLI 接口中使用 JavaScript

ZFSSA是Oracle的一站式存储解决方案，尤其在NAS方面有比较广泛的应用。其的操作和使用比较方便，管理员可以通过命令行CLI或者WEB方式进行相关设置。另外，ZFSSA提供了多种接口给第三方软件进行操作，最近比较新并且强大的是REST接口，本文介绍其早前就一直支持的基于CLI的Javascript编程接口。

先来看一下ZFSSA的CLI标准用法：

$ ssh root@192.168.56.101
Password:
Last login: Mon Feb 14 16:09:05 2011 from 192.168.56.1
7000ppc1:> show
Properties:
                      showcode = false
                     showstack = false
                  exitcoverage = false
                   showmessage = true
                    asserterrs = false

Children:
                    configuration => Perform configuration actions
                      maintenance => Perform maintenance actions
                              raw => Make raw XML-RPC calls
                        analytics => Manage appliance analytics
                           status => View appliance status
                           shares => Manage shares

再来看一下如何在其中运行Javascript

$ ssh root@192.168.0.140
Password:
Last login: Mon Feb 14 16:09:05 2011 from 192.168.56.1
script
run('cd /');
run('configuration storage');
var projects = choices('pool');
printf( projects);
printf( "\n");
.
pool-h1,pool-h2

这里的Javascript其实和标准的Javascript没有区别，另外ZFSSA还提供了一些方便的扩展函数

Function	Description
run	Runs the specified command in the shell, returning any output as a string. Note that if the output contains multiple lines, the returned string will contain embedded newlines.
props	Returns an array of the property names for the current context.
get	Gets the value of the specified property. Note that this function returns the value in native form. For example, dates are returned as Date objects.
set	Takes two string arguments, setting the specified property to the specified value.
list	Returns an array of tokens corresponding to the dynamic children of the current context.
choices("para")	Returns an array of tokens corresponding to the possible values for para

更多的介绍可以参考这个文档