Cheat Sheets

Fast command and pattern references for daily work. Pair a sheet with its technology course when you want the full walkthrough.

Foundations

Linux Permissions, processes, storage, SSH, systemd → Shell Bash syntax, loops, jq, yq, cron, debugging → Networking TCP/IP, DNS, HTTP, and ops commands → Python for DevOps Files, APIs, Docker SDK, boto3, pytest → Git Branching, remotes, and daily Git workflows →

Containers

Docker Images, containers, Compose, and networking → Kubernetes Workloads, services, kubectl, and cluster ops →

Cloud and IaC

AWS IAM, VPC, EC2, S3, and CLI patterns → Terraform Providers, state, plan/apply, and modules →

CI/CD

GitLab CI/CD Stages, jobs, rules, runners, and artefacts →