Docker Tutorial for DevOps Engineers

Docker Multi-Stage Builds for Production-Ready Minimal Images

Shrink Docker images from 1.2GB to 45MB using multi-stage builds. Production Dockerfiles for Node.js, Go, and Python with real size comparisons.

Docker CLI Cheat Sheet

Essential Docker CLI commands organized by task — build images, run containers, manage volumes and networks, compose services, and debug.

Container Image Scanning with Trivy: Complete Setup Guide

Set up Trivy for container image vulnerability scanning — from local development to CI/CD pipeline integration with actionable remediation.

Docker

Containers

Platform for building, shipping, and running applications in containers. Docker pioneered the container revolution and remains the most popular container toolchain for development workflows.

Kubernetes

Container Orchestration

Open-source container orchestration platform for automating deployment, scaling, and management of containerized applications. The de facto standard for running production workloads at scale.

How fast can you type real DevOps commands? Race against the clock in a terminal-themed typing challenge with kubectl, Docker, Terraform, and more.

Find the bugs hiding in Kubernetes YAML, Dockerfiles, Terraform configs, and CI/CD pipelines. Click the buggy lines before time runs out.

Wake up inside a misconfigured Docker container. Explore, find security vulnerabilities, escape to the host, and apply fixes in this terminal adventure.