packer-cn/website/source/partials/builders/_aws-spot-docs.html.md

• spot_instance_types (array of strings) - a list of acceptable instance types to run your build on. We will request a spot instance using the max price of spot_price and the allocation strategy of "lowest price". Your instance will be launched on an instance type of the lowest available price that you have in your list. This is used in place of instance_type. You may only set either spot_instance_types or instance_type, not both. This feature exists to help prevent situations where a Packer build fails because a particular availability zone does not have capacity for the specific instance_type requested in instance_type.

• spot_price (string) - The maximum hourly price to pay for a spot instance to create the AMI. Spot instances are a type of instance that EC2 starts when the current spot price is less than the maximum price you specify. Spot price will be updated based on available spot instance capacity and current spot instance requests. It may save you some costs. You can set this to auto for Packer to automatically discover the best spot price or to "0" to use an on demand instance (default).

• spot_price_auto_product (string) - Deprecated. Prior to v1.4.3, was required if spot_price is set to auto.

  If you are using Packer v1.4.3 or later, simply remove this from your template; it is no longer necessary based on recent changes to how Amazon calculates spot prices.

  Prior to version 1.4.3, This told Packer what sort of AMI you're launching to find the best spot price. This must be one of: Linux/UNIX, SUSE Linux, Windows, Linux/UNIX (Amazon VPC), SUSE Linux (Amazon VPC), Windows (Amazon VPC)

• spot_tags (object of key/value strings) - Requires spot_price to be set. This tells Packer to apply tags to the spot request that is issued.