Do you recognize this view when looking into your CloudWatch log groups? Each AWS Lambda function has an associated CloudWatch log group. However, there is no cleanup process available as soon as a relationship between a CloudWatch log group and Lambda function expires. In that case it’s necessary to remove these old log groups manually. […]
Remove old CloudWatch log groups of Lambda functions Read More »
On the 7th of September, I gave a talk at Atlas Camp 2018 in Barcelona. You can watch it here on YouTube. It was my first time on a bigger stage and about 80-100 people listened to my words – amazing! With this blog post I want to say thanks to all who helped me achieving
My first time on a bigger stage Read More »
A CloudFormation stack evolves over time and usually costs increase as well. You’ll probably not only have one stack, but instead have at least a production and a development stack. Even one development stack per developer might be common in your organization. This means the total costs increase even more. In order to prevent paying
Shut down CloudFormation stack resources over night using AWS Lambda Read More »
Recently, a question on stackoverflow.com popped up which asked for different environments with AWS CloudFormation. Here, I want to present my answer and give some more information about this topic. The code for this blog post can be found in my GitHub repository where I also have some more CloudFormation examples.
Creating Different Environments With AWS CloudFormation Read More »
If you use AWS for your private website, tools or just for testing new things, you will get to the point where you’re not sure how much money your resources cost you. AWS has a small tool for that: AWS Budgets. With this tool you can keep your AWS budget under control and get notified
Keeping your AWS budget under control Read More »
AWS Lambda is actually made to be used by implementing small functions which can be started quickly. So your code artifact should be as small as possible for a fast startup time. However, in the Java world there are nice frameworks like Jersey and Spring which can help you writing code for an API a
Use Jersey and Spring in AWS Lambda Read More »
Recently, I came across a limit which I haven’t known before: CloudFormation just allows a maximum size of 51,200 bytes per template. If you have ever reached this limit, you might have encountered this error message: [YOUR_TEMPLATE_CODE] at ‘templateBody’ failed to satisfy constraint: Member must have length less than or equal to 51200 So, what
How to reduce your CloudFormation template size Read More »
Today I want to show you three starter projects for AWS Lambda using CloudFormation and SAM – Serverless Application Model. I always like if I have some boilerplate code and can get started quickly without copying code or project structures from an existing (and mature) project. Therefore I thought it’s good to have them in
Starter Projects For AWS Lambda Using NodeJS And Java Read More »
This year I’ve started working with Amazon Web Services (AWS) and most notably AWS Lambda. It’s awesome what Amazon is providing here! It’s cheap, easy to start with when using SAM – Serverless Application Model and easy to integrate with other services. But there are also downsides (which were also discussed a lot on HN). Just to
Fast AWS Lambda Code Updates And Improved Lambda Logs Read More »
A few years ago, Amazon Web Services (AWS) launched it’s new service AWS Lambda. Since its start the service is generating more and more interest for the whole world of serverless computing. I’ve also started using it this year and today I want to share 5 things with you what I think is important when developing
5 Things To Consider For Writing A Lambda Function Read More »