Automation for MariaDB/Galera Cluster setup (Part 2)

This article is the second part of a series on automating MariaDB/Galera Cluster setup. It provides practical deployment scripts and templates for configuring a 3-5 node cluster on CoreOS, with a focus on using Systemd units for container management and Cloud Config files for node initialization. The author also releases a web-based generator app as open-source code on GitHub, which simplifies creating startup scripts. An Azure Resource Manager (ARM) template is included for deploying the entire infrastructure on Azure, making it a comprehensive solution for cloud-based database clustering. The content covers technical details like Docker container orchestration, etcd2 for semaphore coordination, and declarative YAML configuration.