SPOT-FLEET and Auto Scaling

What is Spot-Fleet?

An AWS Spot Fleet is a collection of EC2 servers purchased at reduced rates by bidding at lowest price within AWS. Spot Fleet requests are made using the Spot Fleet API or through the command-line interface (CLI). Users request a Spot Fleet by specifying the maximum desired price per instance hour, target capacity and launch specifications such as the number of instances desired, instance types and availability zones. Prices of Spot Instances constantly change, but EC2 attempts to maintain the requested target capacity of the Spot Fleet. EC2 terminates Spot Instances as prices rise above user-defined settings and launches replacement instances at the new lowest-priced option available for an another acceptable instance type. AWS automates management of these instance collections. Spot Fleet requests are active until cancelled by a user. Continue reading