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Course Outline
Declarative System Sovereignty
- Why imperative configuration management results in drift and audit failures.
- Utilizing the Nix store, derivations, and pure functions for system construction.
- NixOS compared to traditional distributions: immutability and atomic upgrades.
Installation and Basics
- Installing NixOS from an ISO image, including manual and automated partitioning strategies.
- The Nix language: working with sets, functions, and imports.
- Understanding the structure of configuration.nix and its module system.
- Searching for packages and options using nix search and manual pages.
Package and Service Management
- Installing packages system-wide versus per-user using nix-env.
- Enabling systemd services declaratively.
- Creating custom package overrides and overlays.
- Garbage collection and store optimization techniques.
Reproducible Environments
- Using nix-shell and shell.nix for ad-hoc development tasks.
- Leveraging Nix Flakes for lockfile-based reproducibility.
- Utilizing devenv and devshell to streamline team onboarding.
- Integrating Direnv for automatic environment switching.
Remote Deployment
- Managing fleets with NixOps and Colmena.
- Configuring remote builds and binary caches.
- Managing secrets using agenix and sops-nix.
- Testing deployments via NixOS VMs and containers.
System Updates and Rollbacks
- Utilizing nixos-rebuild in switch, test, and boot modes.
- Performing atomic rollbacks to previous system generations.
- Managing channels and pinning for reproducible updates.
- Emergency recovery procedures and bootloader configuration.
Advanced Topics
- NixOS containers and lightweight virtualization methods.
- Cross-compilation and ARM build processes.
- Generating custom ISO and netboot images.
- Implementing Hydra continuous integration for Nix packages.
Requirements
- Advanced Linux system administration skills and shell scripting proficiency.
- A solid understanding of functional programming concepts.
- Familiarity with Git and version-controlled configuration management.
Audience
- Infrastructure engineers looking for reproducible, declarative system solutions.
- DevOps teams aiming to replace tools like Ansible, Puppet, or Chef with Nix.
- Organizations that require bit-for-bit reproducible deployment processes.
21 Hours
Testimonials (3)
experienced trainer
Monika Biskupska - Osrodek Przetwarzania Informacji - Panstwowy Instytut Badawczy
Course - Kubernetes Security Fundamentals (LFS460)
trainer has hands-on knowledge
- Osrodek Przetwarzania Informacji - Panstwowy Instytut Badawczy
Course - Kubernetes for App Developers (LFD459)
Labs and hands on
