Unit Test Java POJO in a Smart Way

Introduction Recently, I was assigned to reduce technical debt in an existing project. One of the keys highlighted technical debt is how low the code coverage is. Therefore, our priority is to increase code coverage […]

Packer: How to Build a Golden Image behind Corporate Proxy

Packer is a powerful tool to build a golden image for multiple platforms. All the configurations are scripted therefore you can embrace Infrastructure-as-a-Code practice. And the best thing, it is FREE!

Filtering Nested Array Objects in Elasticsearch Document with Painless Scripting

Painless is a simple, secure scripting language designed specifically for use with Elasticsearch. It is the default scripting language for Elasticsearch and can safely be used for inline and stored scripts.