What mistakes did you make when using AWS for the first time?

Question

Hello Everyone,I'm documenting the common mistakes beginners make when using AWS for the first time.Here are some of the most common mistake I have noticed so far:- - Forgetting to delete resources that are no longer needed - Accidentally deleting wrong resources - Misconfiguring S3 buckets - Enabling public access to RDSWhat's yours?

Michael_Sieb · Accepted Answer

We did't use all the free credits that are available all over the place. Like this one from Segment https://segment.com/industry/startups/

speedgoose · Answer

Not me yet but I have seen it twice, pushing a AWS secret key to a public git repository.

GoldenMonkey · Answer

You need to use Serverless. This will make everything easier for you. You code the Script to standup the AWS resources.This will avoid manually adding/removing resources.https://www.serverless.com

rshnotsecure · Answer

CloudFormation instead of Terraform.

mraza007 · Answer

Forgetting to turn off ec2 instances and then I realized when a got a bill I quickly deleted it

zwayhowder · Answer

Not treating resources as cattle. I ended up having to maintain a fragile pet for too long that cost me much more than replacing it would have.