← Courses

1. ·

   Before you begin: why Cloud & DevOps now

   A detailed introduction to this free practical course: why infrastructure skills are growing with cloud, AI, and data centres, what Kazakhstan is building, and what you will learn without a promise of an instant career.

   10 min to read

2. 1

   Why Cloud & DevOps now: infrastructure, roles, and boundaries

   Separate data-centre growth from job-title growth and map the skills of cloud engineering, DevOps, platform engineering, and SRE.

   5 min to read · 20 min to practise

3. 2

   Terminal and Git: a reproducible working point

   Navigate the workspace, review a change before committing, and return to a known version without deleting history.

   5 min to read · 20 min to practise

4. 3

   Linux: users, files, and least privilege

   Understand owners, groups, permission modes, and why a service should not run permanently as root.

   5 min to read · 20 min to practise

5. 4

   Processes, signals, services, and logs

   Observe a PID, graceful shutdown, and structured logs, then read a systemd unit as a startup contract.

   5 min to read · 20 min to practise

6. 5

   Networking without magic: IP, port, DNS, HTTP, and TLS

   Trace a request from a domain name to a process socket and localize failures layer by layer.

   5 min to read · 20 min to practise

7. 6

   CloudLab: service, environment, and readiness criteria

   Run the course service, inspect its endpoints, and turn a vague “works” into a testable contract.

   5 min to read · 20 min to practise

8. 7

   A container: a bounded process, not a tiny VM

   Run a first container, observe namespaces and an immutable image, and distinguish a process from a virtual machine.

   5 min to read · 20 min to practise

9. 8

   Image layers, tags, and the container lifecycle

   Inspect image history, pin a digest, and distinguish stop, start, remove, and pull.

   5 min to read · 20 min to practise

10. 9

    Dockerfile: small, tested, and unprivileged

    Build CloudLab as a multi-stage image, test during the build, and verify its unprivileged user.

    5 min to read · 20 min to practise

11. 10

    Volumes, bind mounts, and proof of persistence

    Move state out of the container, recreate it, and prove a note survives process replacement.

    5 min to read · 20 min to practise

12. 11

    Docker Compose: services, networking, and declarative startup

    Start the application and reverse proxy from one declaration and reach a service by DNS name inside the network.

    5 min to read · 20 min to practise

13. 12

    Health checks, limits, and graceful shutdown

    Distinguish liveness from readiness, set resource boundaries, and test shutdown behaviour.

    5 min to read · 20 min to practise

14. 13

    Registry, immutable tags, SBOM, and supply-chain checks

    Tie an image to a commit SHA, produce an SBOM, and scan its contents before publishing.

    5 min to read · 20 min to practise

15. 14

    CI/CD as a feedback system

    Design a pipeline from independent checks and separate continuous integration, delivery, and deployment.

    5 min to read · 20 min to practise

16. 15

    GitHub Actions: verify every change

    Move local checks into a workflow, pin permissions, and use caching without storing secrets.

    5 min to read · 20 min to practise

17. 16

    Build and publish one verified image

    Publish to a registry only after tests and promote one digest across environments.

    5 min to read · 20 min to practise

18. 17

    Secrets, configuration, and environments without leaks

    Separate public configuration from secrets, scope tokens narrowly, and prevent values from reaching logs.

    5 min to read · 20 min to practise

19. 18

    Deployment, smoke testing, and a verified rollback

    Deploy by version, test from outside, and restore the previous digest with a prewritten procedure.

    5 min to read · 20 min to practise

20. 19

    Cloud: IaaS, cost, IAM, and shared responsibility

    Design minimal virtual infrastructure, a budget, and access before creating a billable resource.

    5 min to read · 20 min to practise

21. 20

    Ubuntu server: SSH keys, updates, and a firewall

    Connect as an unprivileged user, close unnecessary ports, and verify access from a second session.

    5 min to read · 20 min to practise

22. 21

    Domain, reverse proxy, and automatic HTTPS

    Point DNS at the server, serve CloudLab through Caddy, and verify the TLS chain externally.

    5 min to read · 20 min to practise

23. 22

    OpenTofu and Ansible: infrastructure and configuration as code

    Validate a resource description, produce inventory, and apply idempotent host configuration.

    5 min to read · 20 min to practise

24. 23

    Kubernetes: Deployment, Service, probes, and rollout

    Read the CloudLab manifests, build them with Kustomize, and observe a safe update and rollback.

    5 min to read · 20 min to practise

25. 24

    Observability, backups, and a recovery drill

    Define service indicators, create a verifiable backup, restore data, and write a blameless final report.

    5 min to read · 20 min to practise