Automated Resilient Data Infrastructure with HA Cluster

Architected a zero-single-point-of-failure infrastructure using a 4-node CentOS cluster.

Key Solutions:

* Automation: Used Ansible for full-stack deployment of MariaDB Galera (Multi-master) and Pacemaker/Corosync for High Availability.

* Security: Implemented HashiCorp Vault for dynamic credential management and TLS certificates.

* Observability: Integrated ELK Stack for centralized logging and system monitoring.