variables.tf

################################################################################
# Required Variables
################################################################################

variable "identifier" {
  description = "The name of the RDS instance"
  type        = string
}

variable "instance_class" {
  description = "The instance type of the RDS instance"
  type        = string
}

variable "region" {
  description = "The region to create the RDS instance within"
  type        = string
}

variable "vpc_id" {
  description = "The VPC ID that the RDS Instance should exist within"
  type        = string
}

variable "subnet_ids" {
  description = "A list of VPC subnet IDs"
  type        = list(string)
}

variable "sg_ingress_cidr_blocks" {
  description = "A list of internal CIDR blocks to allow access to the RDS Instance"
  type        = list(string)
}

################################################################################
# Optional Variables
################################################################################

variable "allocated_storage" {
  description = "The allocated storage in gigabytes"
  type        = number
  default     = 5
}

variable "max_allocated_storage" {
  description = "Specifies the value for Storage Autoscaling"
  type        = number
  default     = 100
}

variable "storage_type" {
  description = "One of 'standard' (magnetic), 'gp2' (general purpose SSD), or 'io1' (provisioned IOPS SSD). The default is 'io1' if iops is specified, 'gp2' if not"
  type        = string
  default     = "gp2"
}

variable "iops" {
  description = "The amount of provisioned IOPS. Setting this implies a storage_type of 'io1'"
  type        = number
  default     = 0
}

variable "engine_version" {
  description = "The engine version to use"
  type        = string
  default     = "14.1"
}

variable "major_engine_version" {
  description = "Specifies the major version of the engine that this option group should be associated with"
  type        = string
  default     = "14"
}

variable "skip_final_snapshot" {
  description = "Determines whether a final DB snapshot is created before the DB instance is deleted. If true is specified, no DBSnapshot is created. If false is specified, a DB snapshot is created before the DB instance is deleted"
  type        = bool
  default     = false
}

variable "snapshot_identifier" {
  description = "Specifies whether or not to create this database from a snapshot. This correlates to the snapshot ID you'd find in the RDS console, e.g: rds:production-2015-06-26-06-05"
  type        = string
  default     = null
}

variable "db_name" {
  description = "The DB name to create. If omitted, no database is created initially"
  type        = string
  default     = null
}

variable "username" {
  description = "Username for the master DB user. Do not use the value 'user' as this is a reserved word used by the postgres engine"
  type        = string
  default     = "pguser"
}

variable "password" {
  description = "Password for the master DB user. This is randomly generated if not specified"
  type        = string
  default     = null
}

variable "port" {
  description = "The port on which the DB accepts connections"
  type        = number
  default     = 5432
}

variable "create_random_password" {
  description = "Whether to create random password for RDS primary cluster"
  type        = bool
  default     = true
}

variable "multi_az" {
  description = "Specifies if the RDS instance is multi-AZ"
  type        = bool
  default     = true
}

variable "monitoring_interval" {
  description = "The interval, in seconds, between points when Enhanced Monitoring metrics are collected for the DB instance. To disable collecting Enhanced Monitoring metrics, specify 0. The default is 0. Valid Values: 0, 1, 5, 10, 15, 30, 60"
  type        = number
  default     = 30
}

variable "allow_major_version_upgrade" {
  description = "Indicates that major version upgrades are allowed. Changing this parameter does not result in an outage and the change is asynchronously applied as soon as possible"
  type        = bool
  default     = false
}

variable "auto_minor_version_upgrade" {
  description = "Indicates that minor engine upgrades will be applied automatically to the DB instance during the maintenance window"
  type        = bool
  default     = true
}

variable "apply_immediately" {
  description = "Specifies whether any database modifications are applied immediately, or during the next maintenance window"
  type        = bool
  default     = false
}

variable "maintenance_window" {
  description = "The window to perform maintenance in. Syntax: 'ddd:hh24:mi-ddd:hh24:mi'. Eg: 'Mon:00:00-Mon:03:00'"
  type        = string
  default     = "Mon:01:00-Mon:04:00"
}

variable "backup_retention_period" {
  description = "The days to retain backups for"
  type        = number
  default     = 7
}

variable "backup_window" {
  description = "The daily time range (in UTC) during which automated backups are created if they are enabled. Example: '09:46-10:16'. Must not overlap with maintenance_window"
  type        = string
  default     = "04:00-07:00"
}

variable "tags" {
  description = "A mapping of tags to assign to all resources"
  type        = map(string)
  default     = {}
}

variable "deletion_protection" {
  description = "The database can't be deleted when this value is set to true"
  type        = bool
  default     = false
}

variable "delete_automated_backups" {
  description = "Specifies whether to remove automated backups immediately after the DB instance is deleted"
  type        = bool
  default     = true
}

variable "family" {
  description = "The family of the DB parameter group"
  type        = string
  default     = "postgres14"
}

variable "parameters" {
  description = "A list of DB parameters (map) to apply"
  type        = list(map(string))
  default     = []
}

variable "cloudwatch_log_group_retention_in_days" {
  description = "The number of days to retain CloudWatch logs for the DB instance"
  type        = number
  default     = 7
}