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  • Question
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Question
In terraform, say you have a different required AMI for for each region, a clean way to pick the right AMI to build your EC2 instance from, based on your region (provided at "terraform apply" runtime), is to use [...] [...] .
Answer

map lookup

^^^ e.g.:

variable "amis" {
  default = {
    "us-east-1" = "ami-b374d5a5"
    "us-west-2" = "ami-4b32be2b"
  }
}

variable "region" {}

resource "aws_instance" "example" {
  ami           = "${lookup(var.amis, var.region)}"
  instance_type = "t2.micro"
}


Question
In terraform, say you have a different required AMI for for each region, a clean way to pick the right AMI to build your EC2 instance from, based on your region (provided at "terraform apply" runtime), is to use [...] [...] .
Answer
?

Question
In terraform, say you have a different required AMI for for each region, a clean way to pick the right AMI to build your EC2 instance from, based on your region (provided at "terraform apply" runtime), is to use [...] [...] .
Answer

map lookup

^^^ e.g.:

variable "amis" {
  default = {
    "us-east-1" = "ami-b374d5a5"
    "us-west-2" = "ami-4b32be2b"
  }
}

variable "region" {}

resource "aws_instance" "example" {
  ami           = "${lookup(var.amis, var.region)}"
  instance_type = "t2.micro"
}


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