October 2025: Delivered two high-impact items for SUNET/puppet-sunet. Implemented explicit Tempo-server network endpoints and OTLP configuration, including a complete configuration map, which improves network clarity, reduces misconfiguration risk, and strengthens deployment robustness. Upgraded Loki, Mimir, Tempo, and Alloy to latest stable releases, enabling new features, security patches, and bug fixes, while reducing technical debt. Overall, these changes enhance reliability, security posture, and upgrade velocity, setting the stage for scalable operations. Demonstrated strong Puppet-based configuration management, OTLP protocol configuration, explicit port mappings, and ownership of multi-service monitoring stack. No major bugs fixed this month; focus on reliability improvements and maintainability.

January 2025 focused on strengthening Redis memory management in SUNET/puppet-sunet. Delivered dynamic memory controls by adding maxmemory to sunet::redictcluster and introducing a maxmemory_policy option with a default of 'noeviction', enabling safer, more predictable memory behavior under load. Also corrected Redis-related config handling in server.conf.erb to ensure maxmemory directives are parsed correctly (include only when set, proper separators, and removal of unnecessary quotes). These changes improve deployment stability, reduce operational risk, and lay groundwork for data-driven memory tuning. Technologies demonstrated include Puppet module development, ERB templating for config files, and Redis configuration practices.