Archive

11 articles

AI Agent for SREs: MCP Servers + Gen AI Studio on OpenShift AI

How I built an operations assistant with 4 MCP Servers (Prometheus, Alertmanager, Kubernetes, Red Hat KB) using Gen AI Studio on OpenShift AI 3.2.

Feb 1310 min

Enterprise RAG in Java: From Theory to Production

Build robust RAG systems for enterprise environments using Java, pgvector, and local models.

Jan 208 min

LangChain4j 1.x: Generative AI for Java Developers, in Production

Build generative AI applications in Java with LangChain4j 1.x: AI Services, RAG with pgvector, tools, memory, Quarkus, and OpenShift deployment with secrets, retries and rate limiting.

Jan 1910 min

Complete Guide to Helm Charts for Kubernetes

Helm in production: chart structure, what changed in Helm 4, enterprise-grade examples on OpenShift, troubleshooting, rollbacks and secrets management.

Jan 1812 min

GitOps on OpenShift with ArgoCD

GitOps on OpenShift with the OpenShift GitOps operator: installation, ApplicationSets, multi-tenancy with AppProjects and RBAC, and troubleshooting sync, drift and self-heal.

Jan 1713 min

Modern CI/CD with GitHub Actions (and When to Reach for Tekton)

Production-grade CI/CD with GitHub Actions: build, test, container image and deployment to Kubernetes/OpenShift, plus an honest comparison with Tekton and OpenShift Pipelines.

Jan 1612 min

Cloud Native Microservices with Quarkus

A practical guide to Quarkus 3.x on Java 21: Quarkus REST, virtual threads, Panache, Kafka, health checks and OpenShift deployment, with real production lessons.

Jan 1513 min

Application Monitoring on OpenShift with Prometheus: User Workload Monitoring

How to monitor your own applications on OpenShift using the built-in Prometheus stack: User Workload Monitoring, ServiceMonitor, alerting, the Cluster Observability Operator, and when kube-prometheus-stack is still the right call.

Jan 1412 min

eBPF + AI + Kubernetes: Real-Time Threat Detection for Cloud Native

A reference architecture combining eBPF for kernel-level observability with ML models to detect DDoS attacks, port scans, and anomalies in Kubernetes with low performance impact.

Aug 22, 20257 min

Ansible Execution Environment: Optimizing Automation with Containers

A practical guide to creating Ansible Execution Environments using ansible-builder and Red Hat UBI 9, solving the problem of inconsistent dependencies.

Jun 21, 20257 min

Steps to Become a Golden Kubestronaut: My Personal Experience

Complete guide on how to become a Kubestronaut and Golden Kubestronaut from the CNCF, with practical tips and the recommended order for certifications.

Jun 21, 20258 min