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Course Outline
Declarative System Sovereignty
- Why imperative configuration management causes drift and audit failures.
- Understanding the Nix store, derivations, and pure functions for system construction.
- Comparing NixOS with traditional distributions: immutability and atomic upgrades.
Installation and Fundamentals
- Installing NixOS from an ISO image using manual and automated partitioning methods.
- Overview of the Nix language: sets, functions, and imports.
- Structure of configuration.nix and the module system.
- Utilizing nix search and manual pages to locate packages and options.
Package and Service Management
- Installing packages system-wide versus per-user using nix-env.
- Declaratively enabling systemd services.
- Creating custom package overrides and overlays.
- Performing garbage collection and optimizing the store.
Reproducible Environments
- Using nix-shell and shell.nix for ad-hoc development tasks.
- Achieving lockfile-based reproducibility with Nix Flakes.
- Utilizing devenv and devshell for streamlined 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 virtual machines and containers.
System Updates and Rollbacks
- Using nixos-rebuild in switch, test, and boot modes.
- Executing atomic rollbacks to previous system generations.
- Managing channels and pinning versions for reproducible updates.
- Handling emergency recovery and bootloader configuration.
Advanced Topics
- Utilizing NixOS containers and lightweight virtualization.
- Cross-compilation and building for ARM architectures.
- Generating custom ISO and netboot images.
- Implementing continuous integration for Nix packages using Hydra.
Requirements
- Experience with advanced Linux system administration and shell scripting.
- Fundamental understanding of functional programming principles.
- Familiarity with Git and version-controlled configuration workflows.
Target Audience
- Infrastructure engineers aiming for reproducible, declarative systems.
- DevOps teams intending to replace tools like Ansible, Puppet, or Chef with Nix.
- Organizations that require bit-for-bit reproducible deployment processes.
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.
