D3.js World Map Real-Time Data Visualizations

This is a quick introduction to data visualizations using the D3.js JavaScript library, Node.js open source runtime system and the Node Package Manager (npm).

The scenario for this tutorial is that we have a website with good traffic and want to see real-time what countries our visitors come from.

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Installing a self-hosted GitLab server and testing Continuous Integration

In this tutorial we’ll install the GitLab Community Edition repository manager in a virtual machine, setup the continuous integration tool that comes with it (GitLab CI) and push through Git a minimal test suite from the host OS to see how a successful/failed commit works.

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