During June 2025, Dmitry Solonovisch enhanced Docker image reliability and configurability for the arenadata/gpdb and GreengageDB/greengage repositories. He introduced Ubuntu 22.04 base images with flexible mirror selection, allowing builds to use either official or internal mirrors via Dockerfile build arguments. By refining command sequencing with shell scripting and enforcing robust RUN command execution, Dmitry reduced build flakiness and external dependency, resulting in more deterministic, CI-friendly container builds. His work leveraged Docker, Dockerfile, and shell scripting skills to streamline deployment processes, improve maintainability, and ensure consistent build environments across different infrastructures, demonstrating depth in DevOps engineering practices.