Cloudonaut Teaser

Welcome to cloudonaut

Your launchpad for Amazon Web Services (AWS)

By Andreas & Michael Wittig. Since 2015, we published 386 articles, 89 podcast episodes, and 97 videos.

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Welcome to cloudonaut

Your launchpad for Amazon Web Services (AWS)

By Andreas & Michael Wittig.

Start reading
Cloudonaut Teaser

How to write unit tests when using the AWS JavaScript SDK v3?

Writing unit tests for code that interacts with the AWS JavaScript SDK v3 comes with two major benefits. Obviously, writing unit tests ensures you catch bugs early and therefore increase the quality of your code. Also, writing unit tests enables you to ...

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Tidying up after failed Terraform tests

Automated tests are making their way into Infrastructure as Code projects. Recently, I’ve implemented tests with Terraform’s test framework which was released in October 2023. However, I ran into the issue that Terraform could not remove all AWS resourc...

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How to monetize an API on AWS?

Did you develop an API and want to sell access? Here is how I combined Amazon’s API Gateway (REST APIs) and FastSpring, a payment and subscription platform, to monetize our API for malware scanning. Luckily, you can apply the pattern to any REST API. T...

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Cleaning up AMIs

Costs are like fingernails. You have to cut them constantly. When working with AWS, cleaning up unused resources is crucial. Otherwise, you will end up with a steadily growing AWS bill and waste money. Do you build AMIs automatically, for example, with ...

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How to reduce costs for GitHub Actions?

GitHub Actions is my favorite CI/CD solution. Over the past year, I gradually switched all projects from CodePipeline to GitHub Actions. To this day, I enjoy the smooth user experience. However, GitHub-hosted runners quickly become a big item on GitHub’...

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KMS Key Policy Privilege Escalation

Encrypting data at rest is a widespread best practice on AWS. In 2019, Werner Vogels set the tone with his motivational slogan, “Dance like nobody’s watching. Encrypt like everyone is!”. AWS shipped the ability to encrypt data at rest for almost all its...

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Connect GitHub Actions with AWS VPC

GitHub Actions is my preferred CI/CD solution. I’m using GitHub Actions to build and deploy applications on AWS. However, GitHub Actions does not have access to private subnets, which is required in the following scenarios: Execute database migrations ...

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Updated CloudFormation vs Terraform in 2022

The most reliable way to automate creating, updating, and deleting your cloud resources is to describe the target state of your infrastructure and use a tool to apply it to the current state of your infrastructure (see Understanding Infrastructure as Co...

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Updated Amazon ECR vs. Docker Hub vs. GitHub Container Registry

Have you worked with a Linux package manager like apt or yum before? A container registry is similar, but instead of packages, it distributes container images. A container registry is a crucial aspect of a containerized workflow and infrastructure. This...

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Updated Managing application secrets: SSM Parameter Store vs. Secrets Manager

Many applications interact with external or internal systems like databases or REST APIs. When your application talks to another system, it usually authenticates with a secret, e.g., an API key, username + password, or a certificate. This leads to the q...

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[cloudonaut podcast] Vol. 90

[cloudonaut podcast] Vol. 89

[cloudonaut podcast] Vol. 88 — AWS networking without burning money?

🔥 AWS News Check: New AWS Region in Mexico is in the works

#090 AWS Testing Awesomeness

Andreas and Michael Wittig were pretty jazzed about writing unit tests using mocks for the AWS SDK v3 in JavaScript. They broke down Amazon's new GuardDuty malware protection for S3 and how it compares to their own product bucketAV. The duo also covered...

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#089 Copying 5 TB in 15 minutes

Andreas and Michael are sharing their learning while building on AWS. This episode is about cost-efficient networking on AWS. Besides that, Andreas and Michael discuss how to speed up infrastructure tests by parallelization and multiple AWS accounts. L...

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Review: AWS Fault Injection Simulator (FIS) – Chaos as a Service?

AWS allows us to run applications distributed across EC2 instances and availability zones. By adding load balancers or message queues to the architecture, we can achieve fault tolerance or high availability. But how can we test that our system can survi...

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Cheap, Durable, Fast. How to choose an EBS volume type?

Elastic Block Storage (EBS) provides solid state drives (SSD) and hard disk drives (HDD) for EC2 instances. The virtual machine accesses the persistent storage via the network. In December 2020, AWS announced another volume type called General Purpose S...

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How to Become an AWS Certified Solutions Architect

In 2012, I created my first AWS account. Back then, I worked as a software engineer and was looking for a way to deploy an online trading platform. Two years later, I attended re:Invent — the yearly conference organized by AWS — in Las Vegas for the fir...

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Andreas Wittig and Michael Wittig

Hej, Andreas & Michael here!

We launched the cloudonaut blog in 2015. Since then, we have published 386 articles, 89 podcast episodes, and 97 videos.

Besides sharing our learnings about all things AWS on cloudonaut, we're currently working on bucketAV, HyperEnv for GitHub Actions, and marbot.

To support our work on cloudonaut, please subscribe to our newsletter, podcast, or YouTube channel and share our content with your friends and coworkers.