Oscar Castillo
DevOps Engineer
Cali, Colombia
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IT Engineer with 14 years of experience, evolving from Security Architecture to Infrastructure and Cloud Engineering.
Speaker at KubeCon + CloudNativeCon, where I share practical, real-world insights on cloud-native technologies and platform engineering.
Currently working as a DevOps Engineer transitioning into Platform Engineering, focused on automation, CI/CD, containers, and Infrastructure as Code. Passionate about building scalable, secure, and resilient platforms, and improving developer experience through better systems and workflows.
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Area of Expertise
Smart Routing in Envoy with Lua: Path-based Hashing for Affinity
Envoy Proxy offers powerful traffic management capabilities out of the box, but real-world use cases often require a level of customization that goes beyond static configuration.
In this talk, I’ll share how we extended Envoy with a lightweight Lua script to dynamically modify request headers based on URL patterns.
This enabled custom routing logic by extracting identifiers from request paths and using them as input for a hash-based load balancing policy.
The approach leverages Envoy’s http_connection_manager, the Lua HTTP filter, and RING_HASH load balancing — allowing smarter traffic distribution without modifying upstream services.
Self-Healing Clusters: When Kyverno Writes Its Own Rules
What if your cluster could fix its own mistakes? In this talk, we’ll share how we used Kyverno not only to enforce policies but to generate new ones based on real-time drift and audit feedback.
By analyzing repeated violations, our platform automatically suggested corrective policies that operators could review and approve. The result: a self-evolving governance system where prevention improves itself over time.
We’ll discuss the architecture behind adaptive policies, the telemetry pipelines that feed them, and how this approach reduced incidents and configuration drift across multiple environments.
Unblocking Istio: Real-World Mesh Use Cases You’ll Actually Use
Installing Istio with its default configuration gives you basic service mesh, observability, and tracing — but that’s just the beginning.
In this session, I’ll share real-world scenarios from high-traffic production environments where Istio truly shines.
You’ll see live examples of how to apply traffic mirroring, hash-based routing, and custom load-balancing to improve reliability and deployment safety at scale.
If you’ve ever wondered how teams actually use Istio beyond the defaults, this talk will show you how to unlock its full potential.
Del DevOps al Developer experience as a Service: el verdadero rol del Platform Engineering
En los últimos años, muchas organizaciones han adoptado prácticas de DevOps y un montón de herramientas, pero aún enfrentan cuellos de botella a la hora de entregar valor de forma consistente y escalable.
En esta charla voy a compartir cómo esa realidad me llevó a conocer el enfoque de Platform Engineering y cómo empezar a transicionar hacia él desde un equipo DevOps tradicional.
No será una charla técnica en profundidad, sino una reflexión con base práctica. Presentaré un punto de partida claro para equipos que quieren comenzar esta transformación: hablaremos de conceptos clave como Infraestructura como Código, GitOps, autoservicio y plataformas internas. También compartiré un esquema base de arquitectura para visualizar cómo estos elementos se pueden integrar en el camino hacia una mejor experiencia para desarrolladores.
Lanzamiento Comunidad Emergente Cloud Native Cali Colombia
Somos un grupo de profesionales en IT, dispuestos a construir la comunidad emergente de la CNCF en la ciudad de Cali Colombia. Iniciaremos con una charla virtual el 29 de Febrero y posteriormente se tendra la primera charla presencial en Cali, el Jueves 21 de Marzo del 2024. Estas listo a ser asistente o te gustaria postular una charla de Kubernetes o Open Source. BIenvenid@
Aprende Docker , una charla para Devs y Sysadmins.
Sumérgete en el universo de Docker con nuestra charla "Aprende Docker". Diseñada para desarrolladores y administradores de sistemas, abordaremos cómo Docker revoluciona el desarrollo y la administración de aplicaciones. En esta sesión proporcionará las herramientas esenciales para aprovechar al máximo Docker. Entiende como funciona Docker y como puedes sacar provecho en el proceso de desarrollo.
KCD Colombia Bogota 2025 Sessionize Event
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