Marcus Calero
- ENGLISH
Content Marketing Manager
Win the Day
Marcus is a Content Marketing Manager at DoiT, where he leads SEO and editorial strategy across DoiT's cloud intelligence portfolio — including doit.com, Select, and PerfectScale. He also specializes in translating complex cloud cost and FinOps topics into content that resonates with both engineering and finance audiences.
What I'm writing
Kubectl Cheat Sheet: Clusters, Pods, Deployments & More
A ready-to-use kubectl cheat sheet covering contexts, pods, deployments, services, RBAC, logs, and debugging, plus aliases and autocompletion tips for faster Kubernetes work.
Kubernetes NodeSelector: Syntax, Examples & 5 Best Practices
A practical guide to Kubernetes nodeSelector: how the scheduler matches node labels, YAML syntax, real examples, comparisons with node affinity and nodeName, plus five best practices.
EKS Cluster Autoscaler: How It Works, Setup & Best Practices
A practical guide to the Amazon EKS Cluster Autoscaler: how it scales nodes, step-by-step setup, comparisons with HPA and EKS Auto Mode, and seven best practices.