DevOps Engineering

Ship a Node.js app with GitHub Actions, a self-hosted runner on AWS EC2, Nginx reverse proxy, custom domain, and free SSL — before diving into Jenkins.

8 lessons

Understand CI/CD, Jenkins architecture, install Jenkins with Docker, and run your first freestyle job.

4 lessons

Configure freestyle jobs, manage credentials, connect GitHub, and trigger builds with webhooks, polling, and cron.

3 lessons

Write declarative Jenkinsfiles with stages, agents, environment, credentials, parallel stages, and post actions.

3 lessons

Run builds in Docker agents, build and push images, deploy from Jenkins, and introduce shared libraries.

3 lessons

Introduce logging, monitoring, and alerts with New Relic — host monitoring, NRQL, APM for Node.js, Winston logs, percentiles, and why teams also learn open-source stacks.

7 lessons

Learn monitoring and observability, deploy a Docker monitoring stack, scrape metrics with Prometheus, visualize in Grafana, centralize logs with Loki, and set production alerts.

8 lessons

Learn infrastructure automation with Ansible, prepare AWS EC2 hosts, set up passwordless SSH, manage inventory and ansible.cfg, and install Nginx with ad-hoc commands.

6 lessons

Master YAML, write Ansible playbooks with plays/tasks/modules, use variables and facts, and troubleshoot with register and debug.

5 lessons

Control playbook execution with when conditionals, loops, handlers, tags, limits, and execution strategies.

4 lessons

Render Jinja2 templates, encrypt secrets with Ansible Vault, handle failures cleanly, and organize automation into reusable roles.

4 lessons

Deploy Jenkins with Docker, a Prometheus/Grafana monitoring stack, dynamic AWS inventory, and EC2 provisioning with Ansible.

4 lessons

Understand Infrastructure as Code, install Terraform, configure AWS access, and create your first S3 bucket and EC2 instance.

6 lessons

Configure providers across regions, use variables and outputs, wire resources with references, and build a VPC network with EC2.

6 lessons

Build reusable modules, manage Terraform state with an S3 backend, and run multiple environments with workspaces.

4 lessons

Manage secrets with HashiCorp Vault, write dynamic code with conditionals and loops, and master the init → plan → apply workflow.

6 lessons

Orchestrate containerised workloads at scale: Kubernetes architecture, imperative vs declarative workflows, Pods, Deployments, and Services.

12 lessons

Stand up a real cluster on AWS EC2 with Kind, expose services with MetalLB, isolate workloads with Namespaces, and route traffic with Ingress.

4 lessons