CODEWITHSUNDEEP
aws-cloudformation
BabaNew
BabaNew

Reputation: 976

Exclude/Include resource via parameter in AWS CloudFormation

I have a template that includes 3 resources. Is there a way to programmatically exclude 1 of the 3 resources by using a Parameter of my template?

(that is having the same result that i would get by commenting out the unwanted resource in my template)

Upvotes: 0

Views: 611

Answers (1)

Marcin
Marcin

Reputation: 238081

It depends. Since you haven't specified any template, I can only show what I usually do.

Parameters:  

  SubnetId:
    Type: String
    Default: ''


Conditions:

  HaveSubnetId:
    !Not [!Equals [!Ref SubnetId, '']]   

Resources:

  MyInstance:
    Condition: HaveSubnetId
    Type: AWS::EC2::Instance

In this example, MyInstance is going to be created if SubnetId is given (i.e., not empty). If SubnetId is provided, HaveSubnetId will be true.

This is based on Condition section in a resource declaration.

Upvotes: 2

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