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trimsuffix(str, suffix) returns str with the trailing suffix removed. If str does not end with suffix, it is returned unchanged.

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Signature

trimsuffix(str string, suffix string) string

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Example

Strip the trailing slash from a base URL variable so paths can be constructed consistently with a single slash separator: 
variable "api_base_url" {
  description = "Base URL of the API (with or without trailing slash)"
  type        = string
  default     = "https://api.example.com/"
}

computed "api_url" {
  description = "Normalized API base URL without trailing slash"
  expression  = trimsuffix(var.api_base_url, "/")
}

task "health-check" {
  description = "Check the API health endpoint"
  commands    = ["curl -f ${computed.api_url}/health"]
}
https://api.example.com/ becomes https://api.example.com.

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Notes

  • Only the suffix at the end is removed. If the string ends with the suffix more than once, only one occurrence is removed.
  • trimsuffix removes a literal string match, not individual characters. Use trim for character-set stripping.