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Show your SaaS architecture: Time Series Guru

Today I want to show you the architecture of my latest AWS project: Software-as-a-Service time series database with REST API. TimeSeries.Guru is a TSDB build to handle large volumes of time series data. The Saas is powered by the high-performance databa...

Serverless image resizing at any scale

This post demonstrates how you can create a bunch of resized images right after uploading an image to S3. The solution requires no servers, is scalable and can be automatically deployed within minutes. The solution makes use of two S3 buckets: The b...

A look at DynamoDB

Scaling a traditional, relational database is very hard because transactional guarantees (Atomicity, Consistency, Isolation, Durability also known as ACID) require communication between all nodes of the database. The more nodes you add, the slower your ...

3 simple ways of saving up to 90% of EC2 costs

An EC2 instance is billed at an hourly rate depending on the instance type and the region by default. This pricing model is called on-demand. It is the simplest but also most expensive way of using EC2 instances. There are two other purchasing options f...

High availability is a no-brainer: EC2 auto-recovery

Werner Vogels (CTO of AWS) is quoted with “Everything fails all the time.”. This does not mean AWS is an unreliable cloud provider. Quite the contrary: AWS plans for failure. All services are highly available or fault tolerant. Some of them by default, ...

Create a serverless RESTful API with API Gateway, Swagger, Lambda, and DynamoDB

This article teaches you how to create a serverless RESTful API on AWS. You will use OpenAPI Specification formerly known as Swagger Specification to define the API and API Gateway in combination with Lambda to implement the API. DynamoDB is used to sto...

EC2 Templates for AWS CloudFormation

This page has moved to GitHub: https://github.com/widdix/aws-cf-templates/tree/master/ec2

WordPress on AWS: you are holding it wrong

WordPress is a very popular blogging software. You can run the PHP application together with a MySQL database on an EC2 instance (virtual machine) easily. But if you are following the official tutorial to setup your blogging environment on AWS you are m...

WordPress Templates for AWS CloudFormation

This page has moved to GitHub: https://github.com/widdix/aws-cf-templates/tree/master/wordpress

Improve AWS security: protect your keys with ease

As a DevOps engineer, I love to work with the AWS Command Line Interface (CLI) to control various AWS resources in an (half-)automated way. To be able to do so it is necessary to store access keys on my local machine. These access keys (access key ID an...