Lior Kaplan focused on security hardening for the geosolutions-it/MapStore2 repository by updating the Dockerfile to use a newer Tomcat base image, directly addressing external-component security warnings. This work involved careful containerization practices and adherence to DevOps principles, ensuring that the updated image maintained build and runtime compatibility without altering application features. By implementing this targeted change, Lior reduced vulnerability exposure and improved the project’s auditability, documenting the rationale and process for future traceability. The update aligned with security policies and prepared the project for upcoming deployments, demonstrating a methodical approach to maintaining secure, maintainable infrastructure using Dockerfile.