Nana Janashia publishes the TechWorld with Nana YouTube channel — one of the larger independent DevOps and cloud-engineering channels online, with a focus on the foundational mental model of how Docker, Kubernetes, CI/CD pipelines, and the surrounding cloud-infrastructure tooling actually work. Her teaching is widely cited for clarity on topics that most DevOps documentation treats as opaque.
The course catalog covers Docker and Kubernetes in depth (architecture, networking, storage, security, the production patterns), Terraform and infrastructure-as-code, CI/CD with GitHub Actions and Jenkins, AWS / Azure cloud fundamentals, the observability stack (Prometheus, Grafana), and the broader DevOps engineering craft that separates production-ready infrastructure from tutorial-grade examples.
The CourseFlix listing under this source carries 5 TechWorld with Nana courses spanning that range. Material is paid and aimed at engineers building real DevOps competence rather than picking up isolated tools.