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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 Fundamentals
- Installing NixOS from an ISO image using manual and automated partitioning methods.
- The Nix language: sets, functions, and imports.
- Structure of configuration.nix and the module system.
- Searching for packages and options using nix search and manual pages.
Package and Service Management
- Installing packages system-wide versus per-user with nix-env.
- Declaratively enabling systemd services.
- Custom package overrides and overlays.
- Garbage collection and store optimization techniques.
Reproducible Environments
- Using nix-shell and shell.nix for ad-hoc development tasks.
- Achieving lockfile-based reproducibility with Nix Flakes.
- Facilitating team onboarding with devenv and devshell.
- Automating environment switching through Direnv integration.
Remote Deployment
- Managing fleets using NixOps and Colmena.
- Configuring remote building and binary caches.
- Managing secrets with agenix and sops-nix.
- Testing deployments using NixOS virtual machines 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.
- Cross-compilation and ARM builds.
- Generating custom ISOs and netboot images.
- Implementing Hydra continuous integration for Nix packages.
Requirements
- Advanced experience in Linux system administration and shell scripting.
- A foundational understanding of functional programming concepts.
- Familiarity with Git and version-controlled configuration workflows.
Audience
- Infrastructure engineers seeking reproducible and declarative systems.
- DevOps teams aiming to replace tools like Ansible, Puppet, or Chef with Nix.
- Organizations that require bit-for-bit reproducible deployments.
21 Hours
Testimonials (4)
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)
A very good and easy-to-use virtual solution (DA DESKTOP).
HEITOR GAVA - Motorola Solutions Ltda
Course - Quick Introduction to Hypervisor and KVM
Tyler is very knowledgable and shared his valuable experience in Lustre administration with us.
