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split(separator, str) divides str at every occurrence of separator and returns a list of the parts.

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Signature

split(separator string, str string) list(string)

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Example

Accept a comma-separated list of services as a variable and run a command for each one: 
variable "services" {
  description = "Comma-separated list of services to restart"
  type        = string
  default     = "api,worker,scheduler"
}

computed "service_list" {
  expression = split(",", var.services)
}

task "restart" {
  description = "Restart each service"
  commands = [
    "for svc in ${join(" ", computed.service_list)}; do systemctl restart $svc; done",
  ]
}
With the default value, computed.service_list becomes ["api", "worker", "scheduler"].

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Notes

  • If separator does not appear in str, the result is a list with one element: the original string.
  • Consecutive separators produce empty strings in the result. Use compact to remove them.
  • To join a list back into a string, use join.