update prefix description at the stack level

[vburckhardt]

The prefix for landing zone requires to not start with a number (specific to landing zone). Suggest to take the description for the prefix in landingzone and use it at the stack level.

[vburckhardt]

Hi @toddgiguere - do you have the context for the extra restriction on end and start with letters only - which service is putting this restriction?

variable "prefix" {
  description = "A unique identifier for resources that is prepended to resources that are provisioned. Must begin with a lowercase letter and end with a lowercase letter or number. Must be 16 or fewer characters."
  type        = string

  validation {
    error_message = "Prefix must begin and end with a letter and contain only letters, numbers, and - characters."
    condition     = can(regex("^([A-z]|[a-z][-a-z0-9]*[a-z0-9])$", var.prefix))
  }
}

[toddgiguere]

@vburckhardt where did you see the above code block? In patterns/roks/variables.tf it has a different description:

variable "prefix" {
  description = "A unique identifier for resources that is prepended to resources that are provisioned. Must begin with a lowercase letter and end with a lowercase letter or number. Must be 13 or fewer characters."
  type        = string

  validation {
    error_message = "Prefix must begin with a letter and contain only lowercase letters, numbers, and - characters. Prefixes must end with a lowercase letter or number and be 13 or fewer characters."
    condition     = can(regex("^([a-z]|[a-z][-a-z0-9]*[a-z0-9])$", var.prefix)) && length(var.prefix) <= 13
  }
}

[toddgiguere]

@vburckhardt The prefix restrictions were part of the initial code that we took over, looking at the git blame the restriction of "must begin with letter" has been there since the very first commit from the other team.