过滤器是一种特殊的函数,用来拓展模版系统 .

这是一个开发者核心的特性,允许Ansible从任何地方载入底层拓展模块:

filter_plugins = ~/.ansible/plugins/filter_plugins/:/usr/share/ansible_plugins/filter_plugins

Most users will not need to use this feature. See Developing Plugins for more details 大部分用户不会用到这个特性,详见:doc:developing_plugins.