变量名`environment`是否被保留? [英] Ansible variable name `environment` is reserved?

问题描述

我今天有一个奇怪的情况.我在剧本 environment 中调用了我的变量之一.如果我使用 debug 指令转储变量，则显示为正常

I've got a strange situation today. I called one of my variables in a playbook environment. If I dump variables using debug instruction, it is shown ok

   "environment": "development",

但是，如果我尝试使用 {{environment}} 从脚本中访问它，则始终会为其分配一个 {} 值.我重命名它，它工作正常.这是为什么? environment 是Ansible中的保留名称吗?我检查了变量转储-与定义的变量没有冲突.

But if I try to access it from a script using {{ environment }} it is always assigned a value of {}. I renamed it and it worked ok. Why is that? Is environment a reserved name in Ansible? I checked variable dump - there is no clashes with defined vars.

推荐答案

我在

是的，环境是受限制的关键字.最初特定于剧本，但它被注入跑步者中:

Yes, environment is a restricted keyword. Initially specific within playbooks, but it gets injected in the runner:

inject['environment'] = self.environment

因此它将清除由vars清单设置的任何值.

so it will erase whatever value was set by inventory of vars.

还有一个尚未解决的功能请求，用于警告是否使用了保留变量.

There is a yet unaddressed feature request to warn if reserved variables are used.

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