Lovell Felix · Infrastructure & reliability

I build infrastructure that isn't supposed to be interesting.

I'm Lovell. I work on large-scale Linux platforms, most recently on the configuration delivery system for a fleet of more than 500,000 production hosts, and the operational practices around it.

My work sits where platform engineering meets operations, safe rollouts, observability, incident response, and the migration of legacy systems that can't afford a maintenance window. This site is where I keep field notes, selected work, and a few older projects I still maintain for historical reasons.

Selected work

All selected work →

01 · Configuration systems

Fleet-scale configuration delivery

Design and operation of the system that reconciles desired state with running config on 500K+ Linux hosts. Drift detection, convergence, rate-limiting, and the operational discipline of not waking people up at 3 AM.

02 · Change safety

Deployment safety and rollout governance

The safety layer that makes safe deployment the default path, not something that requires heroics, spans canary stages, blast-radius controls, automated rollback, and freeze-window enforcement.

03 · Reliability practice

Observability and incident response

OpenTelemetry, Grafana, Splunk, and KQL-based investigation. SLOs and error budgets for the services that matter most. Postmortems that produce durable defaults, not paperwork.

04 · Modernization

Stateless modernization

Removing node-local state from services so they can restart on any available host without data loss. Recovery-oriented design as the foundation for any later Kubernetes conversation.

Notes

All notes →
How I'm Using OpenCode as My Engineering Assistant
Raspberry Pi headless setup
A highly available k3s control plane with keepalived and HAProxy
Troubleshooting Spacewalk, OSAD, and Jabber
Setting up an NFS server on CentOS
Fixing libwbclient.so.0 missing after realm join
Two Git recovery tricks I keep coming back to
Migrating a VMware VM to KVM
Migrate Linux users to another Linux server
Glide: Android Image loader library
Tutorial: How to Generate A Self Sign Cert with OpenSSL on CENTOS
How to quickly create a centos vm on Microsoft Azure with a reserved IP
Featured on Grenada 40 under 40 list for Technology

The archive runs back to 2012, starting with early CentOS, Git deployment workflows, and a few things I wrote before I knew better. Kept online for reference, but the recent work is what's worth reading.