Amazon AWS cloud has three types of instance purchasing options:
- On-demand: the “ordinary” type of EC2 instance - Learn how to launch an on-demand instance.
- Reserved Instance : Paying a one-time upfront fee and save in hourly instance running costs.
- Spot instance: A user can bid for the unused Amazon EC2 compute capacity and get the instance.
A spot instance helps to reduce the cost of the instance.Amazon EC2 has huge idle computing capacity and AWS allows using this idle computing power to launch an instance at a lesser price than an on-demand instance. The present guide demonstrates how to create a spot instance using the AWS supplied Linux AMI.