Gabriel Andre DevOps Blog

I'm Gabriel Carmo, a Specialist Platform / DevOps Engineer and CNCF Kubestronaut. I build and evolve multi-cloud Kubernetes platforms through platform engineering, automation, GitOps, observability, and SRE practices.

Articles in English

Technical articles, experiments, and lessons learned.

Português

Mar 28, 2026 • 16 min read EN

Home Lab on OCI's Free Tier.

DevOps

Jan 4, 2026 • 4 min read EN

GitLab with Traefik: A Hands-On DevOps Lab Using Docker Swarm, Ansible, and Vagrant

Ansible

Jan 1, 2026 • 4 min read EN

Zabbix Lab - Docker Swarm + Traefik (Reverse Proxy) with Vagrant + Ansible

Observability

Mar 4, 2025 • 1 min read EN

How to Reset the Admin Password in Grafana with PostgreSQL

Observability

Mar 4, 2025 • 3 min read EN

Unlocking Docker API: TLS Security & Unsafe Port Access

Docker

Mar 4, 2025 • 3 min read EN

Kubestronaut Program

kubestronaut

Mar 4, 2025 • 1 min read EN

How to Change the Storage Directory in Docker

Docker

Mar 3, 2025 • 1 min read EN

Log Rotation in Podman: How to Configure and Avoid Running Out of Disk Space

Podman

Feb 28, 2025 • 3 min read EN

OpenShift Machine Config Server (MCS) Connection Refused on Port 22623

Openshift

Feb 28, 2025 • 2 min read EN

How to enable and configure ETCD encryption on OpenShift Container Platform

Openshift

Feb 27, 2025 • 1 min read EN

Force Delete a Project (Namespace) in OpenShift

Openshift

Feb 27, 2025 • 3 min read EN

Upgrade Error “MachineConfigPool worker is not ready” in OpenShift

Openshift