Open sourcing Newsletter Generator using Terraform

This post aims to help testers create a test environment for practicing testing microservice-based architecture. A lot of testers would like to learn how to test applications that are loosely coupled microservices. But testing these applications generally require access to cloud based infrastructure. So the most common way professional testers first test such applications is at their day job. This […]

Getting everyone to write infrastructure tests

In this post, we will outline our usual strategy to get an entire team to quickly fill testing holes – like writing infrastructure tests. Why? Because we find ourselves using this approach frequently at clients. Some context: Qxf2 engineers work with early stage products that neglected writing tests in favour of shipping quickly. This means, we almost always enter situations […]

Integrating CloudWatch Alarms with Skype

At Qxf2, our AWS environment hosts a multitude of applications, so monitoring the AWS services in real time is crucial for maintaining system reliability and performance. We’ve been using CloudWatch alarms to help us watch over our resources, these alarms used to send us emails whenever something went wrong. The problem was, it is often easy to miss these alerts […]

Auditing AWS cloud resources with Chef InSpec

Continuing from the preceding blog, ‘Auditing OS Level Resources with Chef InSpec’ which delved into utilizing the Chef InSpec open-source tool for testing individual servers via OS level resources. Now, we embark into the domain of Chef InSpec’s facility in cloud environments. Chef InSpec extends its support to cloud platforms like AWS, Azure, and GCP. Referring to insights shared in […]

Using Airflow to start and stop EC2 instances

In this post we will show you how to use Airflow to start and stop EC2 instances. Airflow is a popular open-source platform that engineering teams use to manage workflows. It uses a concept called Directed Acyclic Graphs (DAGs) which lets you chain multiple steps into a workflow. Airflow’s popularity is also partly due to an extensive library of operators. […]

Testing AWS Lambda locally using LocalStack and pytest

Testing loosely coupled microservices requires the use of diverse testing tools. Unlike monoliths, it is challenging to have a complete copy of the production system (System Under Test) for integration testing. Often, developers are hesitant to make changes in the pipeline due to uncertainty about potential downstream impacts. In such cases, it is valuable for developers to test integration components […]