Articles tagged with "GO"

This is a live Blog from the workshop “Cloud Driven Development” on https://devopenspace.de/. Forget a lot of what you know about classic full-stack development. Together, we’ll dive into cloud-driven software development and build a sample serverless application in AWS. This blog was build live during the workshop on November 2021. So it`s not a complete reference, just a few hints to test and deploy the infrastructure and the applications.

End of September 2021, AWS announced Graviton 2 powered Lambda Functions. The announcement post says “All Lambda runtimes built on top of Amazon Linux 2, including the custom runtime, are supported on Arm…”. Not all languages out of the box, for using GO as fast language on a fast Graviton processor, you have to use Docker based deployment. Here I show you a simple - CDK powered way to do that.

After describing the context of the test pyramid for Infrastructure as Code in part 1, and the Web Application in Part 2a - let`s apply that to some Lambda function.

With CDK you create Infrastructure as Code - IaC. You can automate the test for the IaC code. The three test tastes -Unit, Integration and Application- should work closely together. Here I show you how. It is like the three steps of coffee tasting: 1 smell, 2 Taste, 3 Feel.

TL;DR You don`t need a DSL to do easy integration testing. With CDK available in go, infrastructure test can be programmed with GO packages easily.

CDK GO is in preview, here are the pros and cons and a first VPC example TL;DR The GO module system is IMHO neater than node.JS or Python. But you have to get used to the strongly typed language GO.

CDK Lambda Deployment takes about a minute - how about sub second Function Code Deployment? Creation of Lambda infrastructure with the CDK is really powerful. Updating the Function code is really slow. Here is a fix for that to get to a sub-second Lambda function deployment time.

Serverless - a Use Case for CloudFormation Modules? Let´s agree to “infrastructure as code” is a good thing. The next question is: What framework do you use? To compare the frameworks, we have the tRick-benchmark repository, where we model infrastructure with different frameworks. Here is a walk through how to use CloudFormation Modules. This should help you to compare the different frameworks.