So I've had the idea of this post for a while. Like "3 years ago" a while: CFN Layer Cake FTW!I first came across the idea of the CloudFormation Layer Cake from this AWS Advent blog post from 2012,
aws
A collection of 31 posts
CloudFormation Examples on GitHub
AWS documentation letting you down? Never fear, GitHub can help with that! Find CloudFormation examples quickly and easily.
Effective Actions for AWS IAM
TL;DR I made Effective IAM Actions, a small tool to expand wildcards "*"in IAM Policy Actions so that you can see explicitly what permissions are granted by a policy. It supports multiple statements in each policy, Allow and Deny
Don't use Tags to Manage Permissions in AWS
The main problem is this: By using tags for authorisation, you have a multitude of completely new - per-service - actions that can be used to compromise your security posture.
Best Practices for AWS Step Functions
Recently I've been working with Step Functions in my day-to-day work, as well as in my personal projects, and I decided to write this post as a way of articulating the ins-and-outs of Step Functions I've learnt while using them.
Serverless Cost Containment
Serverless soultions is can be incredibly cheap due to their event-based nature - if your system isn't working, you pay barely anything for it. But if you're not careful, serverless can still result in some nasty surprises when it comes to costs.
AWS Reserved Instances Cheatsheet
Reserved Instances (RIs) are a great way to save some money if you've got consistent AWS EC2 usage, without needing to make changes to your instances!
Cleaning up Lambda Logs with CloudFormation
Is your CloudWatch Logs console full of old log groups? Got 50 pages of Lambda log groups? Don't worry, I have the solution for you! The issue here is not the cost; While there is a cost associated with keeping
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