DevOps

A concrete, reproducible guide to bringing up Keycloak 26 with Docker Compose, creating the mx-ver-lerdo realm preloaded with users, roles and clients, and verifying the token flow with curl.

Master advanced OpenCode configuration: AI providers, MCP servers, permission system, native LSP, and environment variables for teams.

Learn how to create reusable Skills, Custom Agents, and Custom Commands in OpenCode to automate your development workflow.

Learn what OpenCode is, the open-source AI coding assistant for the terminal, how to install it on your system, and take your first steps with its built-in agents.

In-depth comparison of OpenCode, OpenClaw and Claude Code in 2026. Models, pricing, security, features and which one to pick for your development workflow.

Build a complete full-stack application with Docker: React frontend with Nginx, Node.js/Express API, PostgreSQL database, and Redis cache. The Docker course final project.

Automate Docker builds with GitHub Actions. Learn to push to GHCR, configure layer caching, run multi-platform builds, and set up complete CI/CD pipelines.

Learn Docker security best practices: running as non-root, vulnerability scanning with Trivy, secrets management, read-only filesystems, and container hardening.

Master multi-stage builds in Docker to dramatically reduce image sizes. Practical examples for Java, Node.js, Python, and Go with before/after comparisons.