autospotting - Automatically replace AWS EC2 instances in AutoScaling groups with identically configured but up to 90% cheaper spot instances

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A simple and easy to use tool designed to significantly lower your Amazon AWS costs by automating the use of spot instances. When installed and enabled on an existing on-demand AutoScaling group, AutoSpotting clones one of your on-demand instances from the group with a spot instance that is cheaper, at least as large (automatically considering memory, CPU cores and disk volumes) and configured identically to it. Once the new spot instance is ready, it is attached to the group and an on-demand instance is detached and terminated to keep the group at constant capacity.

https://autospotting.org/
https://github.com/cristim/autospotting

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