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Dev tools · January 7, 2019

AutoSpotting: Save lots of money on AWS by using spot instances

Start in minutes, no vendor lock-in, reliable

AutoSpotting: Save lots of money on AWS by using spot instances launched on January 7, 2019 with 4 votes. The site was still online in September 2026, 7 years on.

What it does

- Automatically replaces expensive AWS instances with up to 90% cheaper spot instances, typically saving ~70% of the AWS EC2 costs! - Unlike alternatives it requires no config changes, just tag the AutoScaling groups with spot-enabled=true - Automated fall-back to on-demand - Free up to $1000 monthly savings

AutoSpotting automatically converts AutoScaling groups to Spot instances, saving 60-90% on AWS EC2 costs with minimal friction and production-grade reliability

AutoSpotting runs Spot inside your existing AutoScaling groups, with automatic failover to on-demand. • No re-architecting, no commitments, no lock-in • Add a tag, install in minutes • Runs in your account, no SaaS backend Because doing it safely by hand is hard. Spot capacity can be reclaimed on a two-minute notice . To handle that safely, you have to diversify across instance types, drain load balancers, and fall back to on-demand when capacity runs out. For the details, see how AWS Spot instance pricing works. The usual answers each have a catch: the native AWS tooling makes you re-architect every AutoScaling group, commercial Spot managers run your infrastructure through their SaaS, and…from autospotting.io

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