Recent Posts

Ansible Hyper-V Deployment

Introduction Ansible is one of the most popular configuration management tools. I’ve written about Ansible Testing previously. Ansible consists of a number of modules that provide atomic operations such as installing a package or creating an AWS EC2 virtual machine. These modules are basically Python programs that adhere to an Ansible protocol. On Windows, modules are instead written in PowerShell. The presence of the PowerShell interpreter is one prerequisite for Ansible provisioning on Windows machines.
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image from Prometheus, the Patron of Observability

Prometheus, the Patron of Observability

Prometheus is a popular tool for metrics ingestion and querying. In this post, we discuss some of its features, using PromQL for querying, and using Prometheus with Grafana for visualizations and Alertmanager for alerting.
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image from Handling Json With Jq

Handling Json With Jq

jq is a power tool for working with JSON on the command-line. In this post, we discuss using it to filter and transform data and work with various data sources like awscli and Elasticsearch.
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image from Tracer, a Swift Drawing View

Tracer, a Swift Drawing View

A common way for children’s apps to teach letters is to have someone draw the letter, the app tracking the user’s drawing. We start with this concept and implement piecewise. Along the way, we use unit tests, SwiftCheck, Cocoapods, fastlane, and CI providers to improve the project.
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image from Ansible Testing

Ansible Testing

This article describes the configuration management tool Ansible and some of its basic concepts. Then it discusses how to test Ansible code. Refer to the version chart below. It assumes familiarity with the concept of configuration management, programming, and testing.
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