variables.tf

# ------------------------------------------------------------------------------
# Required
# ------------------------------------------------------------------------------

variable "project_id" {
  description = "The GCP project ID to deploy resources into."
  type        = string
}

variable "region" {
  description = "The GCP region to deploy the Cloud Function and Storage Bucket."
  type        = string
}

variable "function_source_dir" {
  description = "The local directory path containing the Cloud Function source code to be zipped and deployed."
  type        = string
}

variable "pubsub_topic_id" {
  description = "The fully-qualified Pub/Sub topic ID that triggers the Cloud Function (e.g. projects/my-project/topics/my-topic)."
  type        = string
}

# ------------------------------------------------------------------------------
# Storage Bucket
# ------------------------------------------------------------------------------

variable "function_bucket_name" {
  description = "The base name of the GCS bucket used to store the function source code. The project_id will be appended to ensure global uniqueness."
  type        = string
  default     = "cloud-function-source"
}

variable "bucket_lifecycle_age_days" {
  description = "Number of days after which old function archives are automatically deleted from the bucket."
  type        = number
  default     = 30
}

# ------------------------------------------------------------------------------
# Cloud Function Configuration
# ------------------------------------------------------------------------------

variable "function_name" {
  description = "The name of the Cloud Function."
  type        = string
  default     = "pubsub-triggered-function"
}

variable "function_description" {
  description = "The description of the Cloud Function."
  type        = string
  default     = "Cloud Function triggered by Pub/Sub messages"
}

variable "function_runtime" {
  description = "The runtime environment for the Cloud Function (e.g. go125, python311, nodejs20)."
  type        = string
  default     = "go125"
}

variable "function_entry_point" {
  description = "The name of the function to execute when the Cloud Function is triggered."
  type        = string
}

# ------------------------------------------------------------------------------
# Service Configuration
# ------------------------------------------------------------------------------

variable "max_instance_count" {
  description = "The maximum number of function instances that can run simultaneously."
  type        = number
  default     = 3
}

variable "available_memory" {
  description = "The amount of memory available for the function (e.g. 256Mi, 512Mi, 1Gi)."
  type        = string
  default     = "512Mi"
}

variable "timeout_seconds" {
  description = "The maximum amount of time the function can run before timing out (in seconds)."
  type        = number
  default     = 60
}

variable "environment_variables" {
  description = "A map of environment variables to pass to the Cloud Function."
  type        = map(string)
  default     = {}
}

# ------------------------------------------------------------------------------
# Event Trigger
# ------------------------------------------------------------------------------

variable "event_trigger_type" {
  description = "The type of event that triggers the function."
  type        = string
  default     = "google.cloud.pubsub.topic.v1.messagePublished"
}

variable "retry_policy" {
  description = "The retry policy for failed function executions (RETRY_POLICY_RETRY or RETRY_POLICY_DO_NOT_RETRY)."
  type        = string
  default     = "RETRY_POLICY_DO_NOT_RETRY"
}