variables.tf

variable "ami_id" {
  type        = string
  description = "ID of the Spacelift AMI. If left empty, the latest Spacelift AMI will be used."
  default     = ""
}

variable "configuration" {
  type        = string
  description = <<EOF
  User configuration. This allows you to decide how you want to pass your token
  and private key to the environment - be that directly, or using SSM Parameter
  Store, Vault etc. Ultimately, here you need to export SPACELIFT_TOKEN and
  SPACELIFT_POOL_PRIVATE_KEY to the environment.
  EOF
}

variable "disable_container_credentials" {
  type        = bool
  description = <<EOF
  If true, the run container will not be able to access the instance profile
  credentials by talking to the EC2 metadata endpoint. This is done by setting
  the number of hops in IMDSv2 to 1. Since the Docker container goes through an
  extra NAT step, this still allows the launcher to talk to the endpoint, but
  prevents the container from doing so.
  EOF
  default     = false
}

variable "domain_name" {
  type        = string
  description = "Top-level domain name to use for pulling the launcher binary"
  default     = "spacelift.io"
}

variable "ec2_instance_type" {
  type        = string
  description = "EC2 instance type for the workers. If an arm64-based AMI is used, this must be an arm64-based instance type."
  default     = "t3.micro"
}

variable "enabled_metrics" {
  type        = list(string)
  description = "List of CloudWatch metrics enabled on the ASG"
  default = [
    "GroupDesiredCapacity",
    "GroupInServiceInstances",
    "GroupMaxSize",
    "GroupMinSize",
    "GroupPendingInstances",
    "GroupStandbyInstances",
    "GroupTerminatingInstances",
    "GroupTotalInstances",
  ]
}

variable "custom_iam_role_name" {
  description = "Name of an existing IAM to use. Used `when create_iam_role` = `false`"
  type        = string
  default     = ""
}

variable "create_iam_role" {
  description = "Determines whether an IAM role is created or to use an existing IAM role"
  type        = bool
  default     = true
}

variable "min_size" {
  type        = number
  description = "Minimum numbers of workers to spin up"
  default     = 0
}

variable "max_size" {
  type        = number
  description = "Maximum number of workers to spin up"
  default     = 10
}

variable "poweroff_delay" {
  type        = number
  description = "Number of seconds to wait before powering the EC2 instance off after the Spacelift launcher stopped"
  default     = 15
}

variable "security_groups" {
  type        = list(string)
  description = "List of security groups to use"
}

variable "additional_tags" {
  type        = map(string)
  description = "Additional tags to set on the resources"
  default     = {}
}

variable "tag_specifications" {
  description = "Tag specifications to set on the launch template, which will apply to the instances at launch"
  type = list(object({
    resource_type = string
    tags          = optional(map(string), {})
  }))
  default = []
}

variable "volume_encryption" {
  type        = bool
  default     = false
  description = "Whether to encrypt the EBS volume"
}

variable "volume_size" {
  type        = number
  default     = 40
  description = "Size of instance EBS volume"
}

variable "vpc_subnets" {
  type        = list(string)
  description = "List of VPC subnets to use"
}

variable "worker_pool_id" {
  type        = string
  description = "ID (ULID) of the the worker pool."
  validation {
    condition     = can(regex("^[0-9A-HJKMNP-TV-Z]+$", var.worker_pool_id))
    error_message = "The worker pool ID must be a valid ULID (eg 01HCC6QZ932J7WDF4FTVM9QMEP)."
  }
}

variable "base_name" {
  type        = string
  description = "Base name for resources. If unset, it defaults to `sp5ft-$${var.worker_pool_id}`."
  nullable    = true
  default     = null
}

variable "enable_monitoring" {
  description = "Enables/disables detailed monitoring"
  type        = bool
  default     = true
}

variable "instance_refresh" {
  description = "If this block is configured, start an Instance Refresh when this Auto Scaling Group is updated based on instance refresh configration."
  type        = any
  default     = {}
}

variable "enable_autoscaling" {
  default     = true
  description = "Determines whether to create the Lambda Autoscaler function and dependent resources or not"
  type        = bool
}

variable "autoscaler_version" {
  description = "Version of the autoscaler to deploy"
  type        = string
  default     = "v0.3.0"
  nullable    = false
}

variable "autoscaler_architecture" {
  type        = string
  description = "Instruction set architecture of the autoscaler to use"
  default     = "amd64"
}

variable "spacelift_api_key_id" {
  type        = string
  description = "ID of the Spacelift API key to use"
  default     = null
}

variable "spacelift_api_key_secret" {
  type        = string
  sensitive   = true
  description = "Secret corresponding to the Spacelift API key to use"
  default     = null
}

variable "spacelift_api_key_endpoint" {
  type        = string
  description = "Full URL of the Spacelift API endpoint to use, eg. https://demo.app.spacelift.io"
  default     = null
}

variable "schedule_expression" {
  type        = string
  description = "Autoscaler scheduling expression"
  default     = "rate(1 minute)"
}

variable "volume_encryption_kms_key_id" {
  description = "KMS key ID to use for encrypting the EBS volume"
  type        = string
  default     = null
}

variable "autoscaling_max_create" {
  description = "The maximum number of instances the utility is allowed to create in a single run"
  type        = number
  default     = 1
}

variable "autoscaling_max_terminate" {
  description = "The maximum number of instances the utility is allowed to terminate in a single run"
  type        = number
  default     = 1
}

variable "autoscaling_timeout" {
  type        = number
  description = "Timeout (in seconds) for a single autoscaling run. The more instances you have, the higher this should be."
  default     = 30
}

variable "autoscaler_s3_package" {
  type = object({
    bucket         = string
    key            = string
    object_version = optional(string)
  })
  description = "Configuration to retrieve autoscaler lambda package from s3 bucket"
  default     = null
}