Terraform Provisioner

main.tf

resource "random_id" "id" {
    byte_length = 8

    provisioner "local-exec" {
        command = "./provision.sh ${self.id}"
    }
}

provision.sh

#!/bin/sh

set -euo pipefail

echo "provisioning ${1}" > output.txt

for i in 1 2 3 4 5
do
    echo ${i} >> output.txt
    sleep 1
done

Run with:

docker run --rm -v "$(pwd)":"$(pwd)" -w "$(pwd)" hashicorp/terraform apply