Benefits of Autoscaling: ASGs in Action

Learn how ASGs replace failed instances.

Now that our ASG is up and running, let’s see how it behaves.

One main advantage of an ASG compared to manually created instances is its self-healing capability. If one of the instances of the ASG is unhealthy, the ASG will start a new instance automatically to replace the unhealthy one. To see it in action, let’s terminate one of our instances and check how the ASG reacts.

Check the current status

Before we do anything with our instances, let’s first check the current status by looking at our target group to see if all instances are healthy:

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