DevOps, Containers & IaC Basics

By the end

What you'll build

• Navigate a Linux shell with confidence: files, processes, streams, pipes, exit codes and permissions.
• Construct and reason about docker commands and Dockerfiles — images vs containers vs layers, caching, and multi-stage builds.
• Read and validate a CI/CD pipeline: triggers, stages, needs-ordering, artifacts, gates and required approvals.
• Author and lint Infrastructure-as-Code (CloudFormation JSON and Terraform concepts) with deterministic Python checks.
• Construct kubectl commands and reason about Pods, Deployments, Services, scheduling and rolling-update math.
• Write a least-privilege CI/CD deploy IAM policy and predict its allow/deny decisions against a documented evaluator.
• Diagnose broken pipelines, containers and templates through structured, first-failure-first error analysis.
• Estimate build-minute and cluster-capacity numbers using dated, illustrative pricing snapshots (never live-price claims).
• Evaluate a delivery pipeline and architecture against a Well-Architected-style checklist across the pillars.
• Graduate from simulated drills to real free terminals (Killercoda, AWS Free plan/Educate) and frame Karka evidence honestly as skill evidence, not an AWS certificate.

Curriculum

What's inside

6 modules · 39 lessons

1. 01

   Linux & Shell Fluency

   6 lessons
   • Start here: what this course is (and isn't)
   • The shell mental model
   • The shell command matrixflashcard sr
   • Lab: log triage without greppython lab
   • Shell vocabulary: exit codes, permissions, pipesfill blank
   • + 1 more lesson
2. 02

   Docker: Images, Containers & Layers

   7 lessons
   • Containers vs VMs: images, layers, registries
   • Drill: docker runtime commandscli builder
   • Dockerfile anatomy, caching & multi-stage builds
   • Drill: docker images — build, tag, pushcli builder
   • Lab: a tiny Dockerfile linterpython lab
   • + 2 more lessons
3. 03

   CI/CD Pipeline Anatomy

   6 lessons
   • CI/CD pipeline anatomy
   • Drill: git for pipelinescli builder
   • Reading a pipeline file
   • Lab: validate a pipeline configpython lab
   • Lab: build-minute cost calculatorpython lab
   • + 1 more lesson
4. 04

   Infrastructure as Code: CloudFormation & Terraform

   7 lessons
   • Why Infrastructure as Code
   • CloudFormation and Terraform, side by side
   • Lab: validate a CloudFormation templatepython lab
   • Drill: terraform workflowcli builder
   • Lab: summarize a Terraform planpython lab
   • + 2 more lessons
5. 05

   Kubernetes Concepts

   6 lessons
   • Orchestration & cluster anatomy
   • The Kubernetes object matrixflashcard sr
   • Drill: kubectl essentialscli builder
   • Lab: will the pod schedule? (bin-packing)python lab
   • Lab: rolling-update capacity mathpython lab
   • + 1 more lesson
6. 06

   Graduation: Real Terminals, Well-Architected Review & Capstone

   7 lessons
   • Graduation: from simulation to real free terminals
   • Tier-2 task: Docker on a real terminal (Killercoda)
   • Evidence quiz: your Docker Killercoda runquiz
   • Tier-2 task: Kubernetes on a real cluster (Killercoda)
   • Evidence quiz: your Kubernetes Killercoda runquiz
   • + 2 more lessons

The shape of it

How this course works