使用Terraform创建Filebeat配置 [英] Creating Filebeat configuration with Terraform

问题描述

我正在使用Terraform创建实例后尝试创建Filebeat配置文件:

I am trying to create a Filebeat configuration file after creating a instance with Terraform:

resource "local_file" "greylogIP" {
  content  = <<EOF
filebeat.inputs:
- type: log
  enabled: false
  paths:
    - /var/log/*.log
filebeat.config.modules:
  path: '$'{path.config}/modules.d/*.yml
  reload.enabled: false
setup.template.settings:
  index.number_of_shards: 3
output.logstash:
  hosts: ["${aws_instance.web.public_ip}:5014"]
  EOF
  filename = "filebeat.conf"
} 

我需要传递${aws_instance.web.public_ip}变量来分配动态IP，但是Terraform还尝试如何插值path: '$'{path.config}/modules.d/*.yml这是Filebeat配置的一部分并引发错误.

where I need to pass the ${aws_instance.web.public_ip} variable to allocate the dynamic IP but some how Terraform is also trying to interpolate path: '$'{path.config}/modules.d/*.yml which is a part of the Filebeat configuration and throws an error.

如何将path: '$'{path.config}/modules.d/*.yml作为字符串传递?

How can I pass the path: '$'{path.config}/modules.d/*.yml as a string instead?

推荐答案

您需要用双倍的美元($$)转义一个真实的美元($).

You need to escape a literal dollar ($) with a double dollar ($$).

插值文档涵盖了以下内容:

您可以使用双美元符号来避免插值:$$ {foo}将被呈现为原义的$ {foo}.

You can escape interpolation with double dollar signs: $${foo} will be rendered as a literal ${foo}.

模板中有更多提及文档:

重要提示:内联模板中的模板变量(例如上面的consul_address)必须使用双$进行转义.在执行模板之前，Terraform将正常处理未转义的插值.

Important: Template variables in an inline template (such as consul_address above) must be escaped with a double-$. Unescaped interpolations will be processed by Terraform normally prior to executing the template.

这篇关于使用Terraform创建Filebeat配置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！