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max(numbers...) returns the highest value from the given numbers.

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Signature

max(numbers... number) number
At least one argument is required.

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Example

Cap the concurrency to the number of available CPU cores, but never exceed a configured maximum: 
variable "max_workers" {
  description = "Maximum number of parallel test workers"
  type        = number
  default     = 8
}

variable "min_workers" {
  description = "Minimum number of parallel test workers"
  type        = number
  default     = 2
}

computed "workers" {
  description = "Effective worker count"
  expression  = max(var.min_workers, var.max_workers)
}

task "test" {
  description = "Run the test suite with the computed worker count"
  commands    = ["go test -parallel ${computed.workers} ./..."]
}

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Notes

  • All arguments must be numbers.
  • To find the smallest value, use min.