random_integer

The resource random_integer generates random values from a given range, described by the min and max attributes of a given resource.

This resource can be used in conjunction with resources that have the create_before_destroy lifecycle flag set, to avoid conflicts with unique names during the brief period where both the old and new resources exist concurrently.

Example Usage

The following example shows how to generate a random priority between 1 and 99999 for a aws_alb_listener_rule resource:

resource "random_integer" "priority" {
  min     = 1
  max     = 99999
  keepers = {
    # Generate a new integer each time we switch to a new listener ARN
    listener_arn = "${var.listener_arn}"
  }
}

resource "aws_alb_listener_rule" "main" {
  listener_arn = "${var.listener_arn}"
  priority     = "${random_integer.priority.result}"

  action {
    type             = "forward"
    target_group_arn = "${var.target_group_arn}"
  }
  # ... (other aws_alb_listener_rule arguments) ...
}

The result of the above will set a random priority.

Argument Reference

The following arguments are supported:

• min - (int) The minimum inclusive value of the range.

• max - (int) The maximum inclusive value of the range.

• keepers - (Optional) Arbitrary map of values that, when changed, will trigger a new id to be generated. See the main provider documentation for more information.

• seed - (Optional) A custom seed to always produce the same value.

Attribute Reference

The following attributes are supported:

• id - (string) An internal id.
• result - (int) The random Integer result.

Import

Random integers can be imported using the result, min, and max, with an optional seed. This can be used to replace a config value with a value interpolated from the random provider without experiencing diffs.

Example (values are separated by a ,): $ terraform import random_integer.priority 15390,1,99999