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AhmadRafiee/DevOps_Certification
A comprehensive repository for mastering DevOps skills and tools. Explore topics like Docker, Kubernetes, Ansible, Terraform, and more. Ideal for beginners and experienced professionals alike, with hands-on examples and detailed documentation to enhance your DevOps journey.
A single sprawling repo that bundles the author's personal DevOps notes and lab configs across Linux, Docker, Ansible, Kubernetes, Terraform, Ceph, OpenStack, MinIO, and a full observability stack (Prometheus, Loki, Mimir, Tempo, ELK, Graylog). It's aimed at people studying for DevOps roles or certifications who want a broad map of tools and some copy-pasteable configs to poke at, not people looking for a production-ready tool.
The breadth is real and organized by topic rather than dumped flat — Kubernetes alone covers kubeadm, kubespray, Rancher, HPA/cluster autoscaling, and RBAC/network policy as separate call-outs. It's backed by actual artifacts, not just prose: real Ansible playbooks with roles/vars/templates, docker-compose files, Helm values, and ArgoCD Application manifests you can read line by line. The observability section in particular lays out working compose stacks for several competing tools (Loki vs ELK vs Graylog vs Mimir) side by side, which is handy for comparing them without standing each one up yourself.
There's no CI and no tests anywhere, so nothing verifies these playbooks or manifests still apply cleanly against current Ansible/Kubernetes/Terraform versions — with 500+ stars and this much surface area, some fraction is quietly stale. Quality is uneven across sections: Kubernetes and observability are fleshed out, but things like the workshop series reference a 'Session 2' with no linked file, and several folders are just directory stubs with a single example file. It reads as one person's running lab notebook rather than a curated reference, so there's no single coherent path through it — you're expected to already know which subfolder is worth your time.