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Sharing data volumes between machines: EFS

Many legacy applications store state in files on disk. Therefore, using Amazon S3, an object store, is impossible by default. Using block storage might be an option, but it won’t allow access to files from multiple machines in parallel. Hence you need a...

Behind the scenes of the EC2 network performance benchmark

What is the maximum network throughput you can expect from an EC2 instance of type t2.large? How much does the network performance increase when switching from a t2.large to m5.large instance? All these kind of questions are hard to answer, as AWS does ...

Evolutionary Serverless Architecture: JeffConfg Hamburg 2018 talk

I want to share my JeffConf Hamburg talk with you: Evolutionary Serverless Architecture A system architecture often struggles to adapt to new requirements. Serverless architectures can evolve because the small building blocks are easier to replace. I d...

Serverless pattern: accessing public and private resources

Crossing the chasm between the old world - virtual machines isolated within a private network - and the new world - Serverless making use of publicly accessible APIs only - can be tricky. On the one hand, it is possible to configure VPC access for AWS L...

Configure your CloudFormation managed infrastructure with Parameter Store and CodePipeline

Getting started with CI/CD to manage your AWS infrastructure is hard: You have to familiarize yourself with the available technologies. You have to create a Proof of Concept to show your team how it works. You have to convince your team to stop using t...

Burst credits of t2 EC2 instances need monitoring

EC2 is one of the fundamental services on AWS. If you are not 100% Serverless, your application health depends on the health of your EC2 instances. When I do AWS architecture reviews for our clients, I check that CPU burst capacity is monitored for EC2 ...

New CloudFormation Templates - Store your state

We help numerous clients to automate AWS with the help of CloudFormation. As you can imagine, we can reuse CloudFormation templates across clients. The template library comes with several advantages: Higher quality: we continuously improve the template...

Tweaking RDS database performance and ElastiCache

Tweaking database performanceAn RDS database, or a SQL database in general, can only be scaled vertically. To scale a database vertically means to increase the resources of your database but you still have a single database. If the performance of your d...

Introducing AWS Lambda

You don’t need a virtual machine to run your own source code any more as AWS Lambda offers execution environments for Java, JavaScript (Node.js), C#, Go, and Python. All you need to do is to implement a function, upload your source code and configure th...

Monitoring a critical part of your infrastructure: Amazon Elasticsearch domain

I used Elasticsearch in various projects: to add rich search functionality to applications as well as to collect and analyze logs with the help of Kibana. In both cases, either your users or your operators rely on the Elasticsearch infrastructure. In on...