Ansible 模棱两可的 env 值 [英] Ansible ambiguous env value

问题描述

我在 Ansible 中收到以下警告:

I'm getting the following warning in Ansible:

[WARNING]: Non-string value found for env option. Ambiguous env options should be wrapped in quotes to avoid YAML parsing. This will become an error in Ansible 2.8. Key: PORT; value will be treated as: 12345

所以我去查找这个值的来源并将它的所有实例都用引号括起来.或者我是这么想的.我仍然收到警告.

So I went and looked up the origin of this value and wrapped all instances of it in quotes. Or so I thought. I'm still getting the warning.

于是我去了代码中出现的地方，好像是这样的:

So I went to the place in the code where it appeared and it seems to be this:

docker_container:
  env: '{{ params | combine(extra_params, {"PORT": my_port|int + amount|int * 10 })}}'

这是一种处理同一容器的多个实例的设置，每个实例都有一个唯一的端口，以免相互干扰.

This is a setup for dealing with multiple instances of the same container, each getting a unique port, as to not interfere with one another.

而且我不确定如何在不破坏该设置的情况下解决该问题.计算完成后是否可以再次转换为字符串?我应该提前做吗?这里最好的选择是什么?

And I'm not sure how to fix that without breaking that setup. Can it be cast to string again after the calculation is done? Should I do it beforehand? What's the best option here?

推荐答案

作为 env 状态下的noreferrer">docker_container 模块

As the ansible documentation for the docker_container module under env states

可能被 YAML 解析器解析为数字、布尔值或其他类型的值必须被引用(例如 "true")以避免数据丢失.

Values which might be parsed as numbers, booleans or other types by the YAML parser must be quoted (e.g. "true") in order to avoid data loss.

因此您必须将结果转换为带引号的字符串.

so you have to convert your result to a quoted string.

env: '{{ params | combine(extra_params, {"PORT": (my_port|int + amount|int * 10) | string })}}'

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