» aws_spot_instance_request

Provides an EC2 Spot Instance Request resource. This allows instances to be requested on the spot market.

By default Terraform creates Spot Instance Requests with a persistent type, which means that for the duration of their lifetime, AWS will launch an instance with the configured details if and when the spot market will accept the requested price.

On destruction, Terraform will make an attempt to terminate the associated Spot Instance if there is one present.

Spot Instances requests with a one-time type will close the spot request when the instance is terminated either by the request being below the current spot price availability or by a user.

» Example Usage

# Request a spot instance at $0.03
resource "aws_spot_instance_request" "cheap_worker" {
  ami           = "ami-1234"
  spot_price    = "0.03"
  instance_type = "c4.xlarge"

  tags {
    Name = "CheapWorker"
  }
}

» Argument Reference

Spot Instance Requests support all the same arguments as aws_instance, with the addition of:

  • spot_price - (Optional; Default: On-demand price) The maximum price to request on the spot market.
  • wait_for_fulfillment - (Optional; Default: false) If set, Terraform will wait for the Spot Request to be fulfilled, and will throw an error if the timeout of 10m is reached.
  • spot_type - (Optional; Default: persistent) If set to one-time, after the instance is terminated, the spot request will be closed.
  • launch_group - (Optional) A launch group is a group of spot instances that launch together and terminate together. If left empty instances are launched and terminated individually.
  • block_duration_minutes - (Optional) The required duration for the Spot instances, in minutes. This value must be a multiple of 60 (60, 120, 180, 240, 300, or 360). The duration period starts as soon as your Spot instance receives its instance ID. At the end of the duration period, Amazon EC2 marks the Spot instance for termination and provides a Spot instance termination notice, which gives the instance a two-minute warning before it terminates. Note that you can't specify an Availability Zone group or a launch group if you specify a duration.
  • instance_interruption_behaviour - (Optional) Indicates whether a Spot instance stops or terminates when it is interrupted. Default is terminate as this is the current AWS behaviour.
  • valid_until - (Optional) The end date and time of the request, in UTC RFC3339 format(for example, YYYY-MM-DDTHH:MM:SSZ). At this point, no new Spot instance requests are placed or enabled to fulfill the request. The default end date is 7 days from the current date.
  • valid_from - (Optional) The start date and time of the request, in UTC RFC3339 format(for example, YYYY-MM-DDTHH:MM:SSZ). The default is to start fulfilling the request immediately.

» Timeouts

The timeouts block allows you to specify timeouts for certain actions:

  • create - (Defaults to 10 mins) Used when requesting the spot instance (only valid if wait_for_fulfillment = true)
  • delete - (Defaults to 20 mins) Used when terminating all instances launched via the given spot instance request

» Attributes Reference

In addition to all arguments above, the following attributes are exported:

  • id - The Spot Instance Request ID.

These attributes are exported, but they are expected to change over time and so should only be used for informational purposes, not for resource dependencies:

  • spot_bid_status - The current bid status of the Spot Instance Request.
  • spot_request_state The current request state of the Spot Instance Request.
  • spot_instance_id - The Instance ID (if any) that is currently fulfilling the Spot Instance request.
  • public_dns - The public DNS name assigned to the instance. For EC2-VPC, this is only available if you've enabled DNS hostnames for your VPC
  • public_ip - The public IP address assigned to the instance, if applicable.
  • private_dns - The private DNS name assigned to the instance. Can only be used inside the Amazon EC2, and only available if you've enabled DNS hostnames for your VPC
  • private_ip - The private IP address assigned to the instance