CircleCI. A deploy changed the type of a field in the PostgreSQL database used by the job-distribution service. Newly-written rows used the new type and old rows used the old type, so the distributor's strict schema validation failed on each scan and it stopped distributing work.
Build your own AI SRE agents. The open source toolkit for the AI era.
A curated list of amazingly awesome open-source sysadmin resources.
Ethernet simply refers to the most common type of Local Area Network (LAN) used today. A LAN—in contrast to a WAN (Wide Area Network), which spans a larger geographical area—is a connected network of computers in a small area, like your office, college campus, or even home.
A Kubernetes TUI, reimagined in Rust - built on kube-rs and ratatui, async-first from the ground up.
This is a step-by-step guide on how to become a DevOps engineer, with links to relevant learning resources.
Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server.
Toxiproxy is a framework for simulating network conditions. It's made specifically to work in testing, CI and development environments, supporting deterministic tampering with connections, but with support for randomized chaos and customization.
Reloader is a Kubernetes controller that automatically triggers rollouts of workloads (like Deployments, StatefulSets, and more) whenever referenced Secrets, ConfigMaps or optionally CSI-mounted secrets are updated.
Chaos Monkey is a resiliency tool that helps applications tolerate random instance failures.
The open-source AIOps and alert management platform
Open-source, reusable skills that teach AI agents domain-specific workflows on top of Kubeshark's MCP tools:
A curated list of Site Reliability and Production Engineering resources.
This book, The Accidental CTO, is my behind-the-scenes account of that journey. It’s not a dry academic manual filled with abstract diagrams.
SkyWalking: an APM (Application Performance Monitoring) system, especially designed for microservices, cloud native and container-based architectures.
A network daemon that runs on the Node.js platform and listens for statistics, like counters and timers, sent over UDP or TCP and sends aggregates to one or more pluggable backend services (e.g., Graphite).
A handy lookup table of similar technology and services to help ex-googlers survive the real world :) pull-requests are very welcomed. Please do not list any confidential projects!