Create AWS Resources Based on Conditions Using Terraform

Terraform

Sometimes you require that AWS resources be created if specific conditions are fulfilled.

Let’s say you want to create an Amazon S3 bucket only if var var_x = abc or var_x = xyz.

We can do this with the help of a count attribute in Terraform.

Example: sample-bucket will be created only if var_a = abc or var_a = xyz, you can refer below Terraform source code:

resource "aws_s3_bucket" "sample-bucket-resource" {
  bucket = "sample-bucket"
  acl    = "private"

  tags   = {
    # add tags if you want
  }
  
  count  = (var.var_a == "abc" || var.var_a == "xyz") ? 1 : 0
}

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