Auto Scaling
With a physical server infrastructure, if you want to scale up it means adding more physical servers, scale down means reducing physical servers.
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Monitors applications
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Adjusts capacity
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Manages costs
Auto Scaling Functionality
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It monitors your applications and then adjusts capacity according to your needs
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Auto Scaling is Free to use, Results of use may cost: adding more services means adding more cost
Scalable AWS Resources
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EC2 Auto Scaling groups
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DB clusters
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DynamoDB indexes, tables
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Elastic Container Service (ECS) services
Auto Scaling groups
Auto Scaling groups can be defined as a collection of instances with similar characteristics.
The auto scaling group is going to have the EC2 instances in it that can be scaled out or scaled in as you need them to be scaled.
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Scaling out ‐ adding instances
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Scaling in ‐ removing instances
Lab
EC2 >Autoscaling >Autoscaling Group
