Build production-grade GitHub Actions CI/CD pipelines — from first workflow to reusable workflows, matrix builds, and deployment gates.
Git commands cheat sheet for DevOps engineers — branching, rebasing, stashing, bisecting, cherry-picking, and recovery workflows with examples.
Configure ArgoCD Image Updater to automatically detect and deploy new container images to Kubernetes without manual manifest changes or CI triggers.
Set up the pre-commit hooks framework to automatically enforce linting, formatting, and security checks before every Git commit.
Eliminate duplicated CI/CD logic across repositories using GitHub Actions reusable workflows and composite actions with real-world examples.
Harden GitHub Actions security with least-privilege permissions, OIDC federation, SHA-pinned actions, and secrets management best practices.
Essential Docker CLI commands organized by task — build images, run containers, manage volumes and networks, compose services, and debug.
Master GitHub Actions matrix builds to test across multiple OS versions, language versions, and configurations in parallel.
Shrink Docker images from 1.2GB to 45MB using multi-stage builds. Production Dockerfiles for Node.js, Go, and Python with real size comparisons.
Cut your GitLab CI pipeline time from 25 minutes to 6 with smart caching, DAG dependency graphs, parallel test splitting, and stage optimization.
Stop manually bumping versions. Use conventional commits and release-please to automate versioning, changelogs, and releases.