Delayed start
On a t3a.medium, Ohlala Operations for Amazon EC2 takes about 3 to 4 minutes to start. If you look at the AutoScaling Group, it has been set to allow 10 minutes for an instance to start and come online. This should be a comfortable margin.
For production environment, avoid burstable instance types (i.e. t2 or t3 instance families)
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