AWS Cloudformation中UserData中的参考参数值 [英] Reference Parameter Value in UserData in AWS Cloudformation
本文介绍了AWS Cloudformation中UserData中的参考参数值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在参数部分下有这个,
I have this under parameter section ,
Parameters:
PlatformSelect:
Description: Cockpit platform Select.
Type: String
Default: qa-1
AllowedValues: [qa-1, qa-2, staging, production]
我需要在UserData中引用此值。我在两者之间使用映射。
I need to reference this value in my UserData. I’m using Mappings in between.
Mappings:
bootstrap:
ubuntu:
print: echo ${PlatformSelect} >>test.txt
Resources:
EC2Instance:
Type: AWS::EC2::Instance
Properties:
InstanceType: !Ref ‘InstanceType’
KeyName: !Ref ‘KeyName’
Tags:
- Key: Name
Value: Test
UserData:
Fn::Base64:
Fn::Join:
- ‘’
- - |
#!/bin/bash
- Fn::FindInMap:
- bootstrap
- ubuntu
- print
- |2+
这不起作用。不确定我首先提到的方式是错误的!
This is not working. Not sure the way I refer it is wrong in first place!!
我应该在它之前使用一些东西,例如'$ {AWS :: Parameters:PlatformSelect}'吗?
Should I use something before it like, ‘${AWS::Parameters:PlatformSelect}’ ?
推荐答案
您是否有理由在两者之间使用 Mapping
?
Is there a reason why you are using Mapping
in between?
您可以轻松使用 !Sub
代替
You could easily use !Sub
instead
Resources:
EC2Instance:
Type: AWS::EC2::Instance
Properties:
InstanceType: !Ref InstanceType
KeyName: !Ref KeyName
Tags:
- Key: Name
Value: Test
UserData:
Fn::Base64:
!Sub |
#!/bin/bash
${PlatformSelect}
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