variables.tf

variable "aws_region" {
  description = "AWS region."
  type        = string
}

variable "vpc_id" {
  description = "The VPC for security groups of the action runners."
  type        = string
}

variable "subnet_ids" {
  description = "List of subnets in which the action runners will be launched, the subnets needs to be subnets in the `vpc_id`."
  type        = list(string)
}

variable "tags" {
  description = "Map of tags that will be added to created resources. By default resources will be tagged with name and environment."
  type        = map(string)
  default     = {}
}

variable "environment" {
  description = "A name that identifies the environment, used as prefix and for tagging."
  type        = string
}

variable "enable_organization_runners" {
  type = bool
}

variable "github_app" {
  description = "GitHub App parameters. See your GitHub App. All values except the webhook secret are expected to be valid SSM Parameter names, referring to existing SSM Parameters. Ensure the private key is the base64-encoding of the `.pem` file (the output of `base64 app.private-key.pem`, not the content of `private-key.pem` itself)."
  type = object({
    key_base64_parameter_name    = string
    id_parameter_name            = string
    client_id_parameter_name     = string
    client_secret_parameter_name = string
    webhook_secret               = string
  })
}

variable "scale_down_schedule_expression" {
  description = "Scheduler expression to check every x for scale down."
  type        = string
  default     = "cron(*/5 * * * ? *)"
}

variable "minimum_running_time_in_minutes" {
  description = "The time an ec2 action runner should be running at minimum before terminated if non busy."
  type        = number
  default     = 5
}

variable "runner_extra_labels" {
  description = "Extra labels for the runners (GitHub). Separate each label by a comma"
  type        = string
  default     = ""
}

variable "runner_group_name" {
  description = "Name of the runner group."
  type        = string
  default     = "Default"
}

variable "webhook_lambda_zip" {
  description = "File location of the webhook lambda zip file."
  type        = string
  default     = null
}

variable "webhook_lambda_timeout" {
  description = "Time out of the webhook lambda in seconds."
  type        = number
  default     = 10
}

variable "runners_lambda_zip" {
  description = "File location of the lambda zip file for scaling runners."
  type        = string
  default     = null
}

variable "runners_scale_up_lambda_timeout" {
  description = "Time out for the scale up lambda in seconds."
  type        = number
  default     = 180
}

variable "runners_scale_down_lambda_timeout" {
  description = "Time out for the scale down lambda in seconds."
  type        = number
  default     = 60
}

variable "runner_binaries_syncer_lambda_zip" {
  description = "File location of the binaries sync lambda zip file."
  type        = string
  default     = null
}

variable "runner_binaries_syncer_lambda_timeout" {
  description = "Time out of the binaries sync lambda in seconds."
  type        = number
  default     = 300
}

variable "role_permissions_boundary" {
  description = "Permissions boundary that will be added to the created roles."
  type        = string
  default     = null
}

variable "role_path" {
  description = "The path that will be added to role path for created roles, if not set the environment name will be used."
  type        = string
  default     = null
}

variable "instance_profile_path" {
  description = "The path that will be added to the instance_profile, if not set the environment name will be used."
  type        = string
  default     = null
}

variable "instance_type" {
  description = "Instance type for the action runner."
  type        = string
  default     = "m5.large"
}

variable "runner_as_root" {
  description = "Run the action runner under the root user."
  type        = bool
  default     = false
}

variable "runners_maximum_count" {
  description = "The maximum number of runners that will be created."
  type        = number
  default     = 3
}

variable "encrypt_secrets" {
  description = "Encrypt secret variables for lambda's such as secrets and private keys."
  type        = bool
  default     = true
}

variable "manage_kms_key" {
  description = "Let the module manage the KMS key."
  type        = bool
  default     = true
}

variable "kms_key_id" {
  description = "Custom KMS key to encrypted lambda secrets, if not provided and `encrypt_secrets` = `true` a KMS key will be created by the module. Secrets will be encrypted with a context `Environment = var.environment`."
  type        = string
  default     = null
}

variable "userdata_template" {
  description = "Alternative user-data template, replacing the default template. By providing your own user_data you have to take care of installing all required software, including the action runner. Variables userdata_pre/post_install are ignored."
  type        = string
  default     = null
}

variable "userdata_pre_install" {
  type        = string
  default     = ""
  description = "Script to be ran before the GitHub Actions runner is installed on the EC2 instances"
}

variable "userdata_post_install" {
  type        = string
  default     = ""
  description = "Script to be ran after the GitHub Actions runner is installed on the EC2 instances"
}

variable "idle_config" {
  description = "List of time period that can be defined as cron expression to keep a minimum amount of runners active instead of scaling down to 0. By defining this list you can ensure that in time periods that match the cron expression within 5 seconds a runner is kept idle."
  type = list(object({
    cron      = string
    timeZone  = string
    idleCount = number
  }))
  default = []
}

variable "enable_ssm_on_runners" {
  description = "Enable to allow access the runner instances for debugging purposes via SSM. Note that this adds additional permissions to the runner instances."
  type        = bool
  default     = false
}

variable "logging_retention_in_days" {
  description = "Specifies the number of days you want to retain log events for the lambda log group. Possible values are: 0, 1, 3, 5, 7, 14, 30, 60, 90, 120, 150, 180, 365, 400, 545, 731, 1827, and 3653."
  type        = number
  default     = 180
}

variable "runner_allow_prerelease_binaries" {
  description = "Allow the runners to update to prerelease binaries."
  type        = bool
  default     = false
}

variable "block_device_mappings" {
  description = "The EC2 instance block device configuration. Takes the following keys: `device_name`, `delete_on_termination`, `volume_type`, `volume_size`, `encrypted`, `iops`"
  type        = map(string)
  default     = {}
}

variable "ami_filter" {
  description = "List of maps used to create the AMI filter for the action runner AMI. By default amazon linux 2 is used."
  type        = map(list(string))

  default = {}
}
variable "ami_owners" {
  description = "The list of owners used to select the AMI of action runner instances."
  type        = list(string)
  default     = ["amazon"]
}
variable "lambda_s3_bucket" {
  description = "S3 bucket from which to specify lambda functions. This is an alternative to providing local files directly."
  default     = null
}

variable "syncer_lambda_s3_key" {
  description = "S3 key for syncer lambda function. Required if using S3 bucket to specify lambdas."
  default     = null
}

variable "syncer_lambda_s3_object_version" {
  description = "S3 object version for syncer lambda function. Useful if S3 versioning is enabled on source bucket."
  default     = null
}

variable "webhook_lambda_s3_key" {
  description = "S3 key for webhook lambda function. Required if using S3 bucket to specify lambdas."
  default     = null
}

variable "webhook_lambda_s3_object_version" {
  description = "S3 object version for webhook lambda function. Useful if S3 versioning is enabled on source bucket."
  default     = null
}

variable "runners_lambda_s3_key" {
  description = "S3 key for runners lambda function. Required if using S3 bucket to specify lambdas."
  default     = null
}

variable "runners_lambda_s3_object_version" {
  description = "S3 object version for runners lambda function. Useful if S3 versioning is enabled on source bucket."
  default     = null
}

variable "create_service_linked_role_spot" {
  description = "(optional) create the serviced linked role for spot instances that is required by the scale-up lambda."
  type        = bool
  default     = false
}

variable "runner_iam_role_managed_policy_arns" {
  description = "Attach AWS or customer-managed IAM policies (by ARN) to the runner IAM role"
  type        = list(string)
  default     = []
}

variable "enable_cloudwatch_agent" {
  description = "Enabling the cloudwatch agent on the ec2 runner instances, the runner contains default config. Configuration can be overridden via `cloudwatch_config`."
  type        = bool
  default     = true
}

variable "cloudwatch_config" {
  description = "(optional) Replaces the module default cloudwatch log config. See https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Agent-Configuration-File-Details.html for details."
  type        = string
  default     = null
}

variable "runner_log_files" {
  description = "(optional) Replaces the module default cloudwatch log config. See https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Agent-Configuration-File-Details.html for details."
  type = list(object({
    log_group_name   = string
    prefix_log_group = bool
    file_path        = string
    log_stream_name  = string
  }))
  default = [
    {
      "log_group_name" : "messages",
      "prefix_log_group" : true,
      "file_path" : "/var/log/messages",
      "log_stream_name" : "{instance_id}"
    },
    {
      "log_group_name" : "user_data",
      "prefix_log_group" : true,
      "file_path" : "/var/log/user-data.log",
      "log_stream_name" : "{instance_id}"
    },
    {
      "log_group_name" : "runner",
      "prefix_log_group" : true,
      "file_path" : "/home/ec2-user/actions-runner/_diag/Runner_**.log",
      "log_stream_name" : "{instance_id}"
    }
  ]
}

variable "ghes_url" {
  description = "GitHub Enterprise Server URL. Example: https://github.internal.co - DO NOT SET IF USING PUBLIC GITHUB"
  type        = string
  default     = null
}

variable "lambda_subnet_ids" {
  description = "List of subnets in which the action runners will be launched, the subnets needs to be subnets in the `vpc_id`."
  type        = list(string)
  default     = []
}

variable "lambda_security_group_ids" {
  description = "List of subnets in which the action runners will be launched, the subnets needs to be subnets in the `vpc_id`."
  type        = list(string)
  default     = []
}

variable "key_name" {
  description = "Key pair name"
  type        = string
  default     = null
}

variable "runner_additional_security_group_ids" {
  description = "(optional) List of additional security groups IDs to apply to the runner"
  type        = list(string)
  default     = []
}

variable "market_options" {
  description = "Market options for the action runner instances. Setting the value to `null` let the scaler create on-demand instances instead of spot instances."
  type        = string
  default     = "spot"
}