OnCallReady

The OnCallReady course: Linux to Kubernetes and SRE

31 chapters, in the order an engineer moving into Platform / SRE needs them. Every lesson is short, plain-spoken and paired with hands-on labs in a real terminal.

Course

  1. 0 SRE Fundamentals13 lessons · 25 labs

1

  1. 1 First Login10 lessons · 13 labs
  2. 2 systemd17 lessons · 22 labs
  3. 3 Processes & Signals10 lessons · 13 labs
  4. 4 Filesystem, Permissions, Disk10 lessons · 16 labs
  5. 5 Memory & OOM6 lessons · 10 labs
  6. 6 Bash Scripting12 lessons · 15 labs
  7. 7 Text Processing & jq8 lessons · 10 labs
  8. 8 Addressing & DNS11 lessons · 19 labs
  9. 9 TCP, TLS & HTTP10 lessons · 23 labs
  10. 10 Images & Builds17 lessons · 42 labs
  11. 11 Docker Runtime & Networking10 lessons · 25 labs

2

  1. 12 Terraform: Language & Workflow9 lessons · 20 labs
  2. 13 Terraform: State & Modules11 lessons · 43 labs
  3. 14 Terraform in Real Life & the Associate Exam9 lessons · 23 labs

3

  1. 15 Kubernetes: Architecture & Workloads18 lessons · 54 labs
  2. 16 Kubernetes: Networking & Storage15 lessons · 56 labs
  3. 17 Kubernetes: Scheduling, Health & Security20 lessons · 55 labs
  4. 18 Kubernetes: Cluster Operations & Troubleshooting12 lessons · 49 labs
  5. 19 CKA Exam Drilling8 lessons · 38 labs

4

  1. 20 JVM Internals11 lessons · 24 labs
  2. 21 Spring Boot Runtime, Resilience & Python Ops12 lessons · 29 labs
  3. 22 Azure I: CLI, Identity & Data Planes11 lessons · 25 labs
  4. 23 Azure II: Networking & AKS10 lessons · 22 labs
  5. 24 Azure III: Monitor, KQL & Cost7 lessons · 21 labs
  6. 25 CI/CD Pipelines & Helm12 lessons · 26 labs
  7. 26 GitOps, Argo CD & Delivery9 lessons · 21 labs
  8. 27 Observability I: Prometheus & PromQL6 lessons · 22 labs
  9. 28 Observability II: Alerting, Alertmanager & SLO alerts5 lessons · 19 labs
  10. 29 Observability III: Dashboards, Logs, Traces & Incidents4 lessons · 15 labs
  11. 30 OpenShift12 lessons · 22 labs

Start chapter 1 in the terminal Free, in your browser - a real Ubuntu terminal to try it in, with missions that check your work.