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# esgi-devops
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Contenus & ressources pour le cours de 4A de DevOps
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# Plan
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- 1 Introduction (c'est quoi le DevOps ? TP -> installation d'une VM NixOS)
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+ rappels de base sur Linux / BONUS: présentation de nix-shell, nixos-rebuild
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- 2 Tests (unitaires & integrations, TP -> utilisation de pytest, hypothesis)
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+ utilisation de nix-env et direnv (change vos variables d'env de votre shell en fonction du dossier dans lequel vous vous trouvez)
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=> utilise Nix pour installer l'ensemble des dépendances de dev requise !! (pratique pour les illustrations / TPs)
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- 3 Deploiements (TP -> déployer un site static dans une machine NixOS / Debian 9 avec Fabric)
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+ BONUS: Terraform sur t2.macro AWS (gratuit), NixOps
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... en cas de pépin ~> ngrock !!
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- 4 Containers (Docker & autres)
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- 5 Haute Disponibilité (autoscaling)
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---
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# 🕸️ DevOps with NixOS
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Contenus & ressources pour le cours de 4A de DevOps
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## ProTip Nix ™
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[Search options](https://nixos.org/nixos/options.html#) (chercher des options de module Nix à utiliser prêt à l'emploi, le système expert ™)
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[Search code](https://search.nix.gsc.io/) (lire du code qui fait un truc, genre "matomo" et voir comment c'est impléménté; lire la doc de la lib standard)
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[Package search](https://nixos.org/nixos/packages.html) (chercher des pkg à installer)
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[NixOS Infra Status](https://status.nixos.org/) (pour voir s'il y a des trucs kassé)
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["How up to date are NixOS channels?"](https://howoldis.herokuapp.com/) (pour voir à quel point master de nixpkgs lag derrière)
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[Useful Nix Hacks](http://chriswarbo.net/projects/nixos/useful_hacks.html) (super useful pour le coup)
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[Nix in 1 page](https://github.com/tazjin/nix-1p) (cheatsheet du langage)
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[A tour of Nix](https://nixcloud.io/tour/) (jeu emscripten du langage où tu as des exercices de trucs à faire, très rapide à faire)
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[Pull Requests · NixOS/rfcs](https://github.com/NixOS/rfcs/pulls) (parce que c'est important de savoir comment ça évolue)
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## Vidéo
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[cirocosta/asciinema-edit](https://github.com/cirocosta/asciinema-edit)
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[untitled](https://asciinema.org/a/jikcJpkl09MoakqkYFTBGfakT)
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[](https://clbin.com/uFXdw)
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[https://www.youtube.com/watch?v=Q4WUCRkM_I8](https://www.youtube.com/watch?v=Q4WUCRkM_I8)
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[https://www.youtube.com/watch?v=ZxD3LMPl5_4](https://www.youtube.com/watch?v=ZxD3LMPl5_4)
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[https://www.youtube.com/watch?v=95Zs95HXFS4](https://www.youtube.com/watch?v=95Zs95HXFS4)
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## Cool env
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[Install Nix](https://nixos.org/guides/install-nix.html)
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[Zsh](https://grml.org/zsh/)
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[Starship: Cross-Shell Prompt](https://starship.rs/guide/#🚀-installation)
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## Network
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[ngrok - download](https://ngrok.com/download)
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## TDD
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[pytest-cov](https://pypi.org/project/pytest-cov/)
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## Deployment
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[](https://clbin.com/wwgTu)
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[Fabric](https://docs.fabfile.org/en/2.5/api/transfer.html?highlight=put#fabric.transfer.Transfer.put)
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[Fabric](http://www.fabfile.org)
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## Reproducible
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[Is NixOS Reproducible?](https://r13y.com)
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[Reproducible Builds](https://wiki.archlinux.org/index.php/Reproducible_Builds)
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[Projects · Reproducible Builds / disorderfs](https://salsa.debian.org/reproducible-builds/disorderfs)
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## Docker
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[Docker](https://nixos.wiki/wiki/Docker)
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### Issues
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[Computational overhead due to Docker under macOS](https://lemire.me/blog/2020/06/19/computational-overhead-due-to-docker-under-macos/)
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[Docker daemon is leaking file descriptors (with reproduction) · Issue #37182 · moby/moby](https://github.com/moby/moby/issues/37182)
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[the container's netns fds leak, causing the container netns to not clean up successfully after the container stops · Issue #41136 · moby/moby](https://github.com/moby/moby/issues/41136)
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[[Windows] mounted volumes behave differently · Issue #41121 · moby/moby](https://github.com/moby/moby/issues/41121)
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## ☹️
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[CoreOS](https://coreos.com/rkt/docs/latest/)
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[README and Docs need to state that RancherOS is dead · Issue #3000 · rancher/os](https://github.com/rancher/os/issues/3000)
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### Better than Docker
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[Firejail](https://wiki.archlinux.org/index.php/firejail)
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[Lightweight Kubernetes](https://k3s.io)
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[Dokku](http://dokku.viewdocs.io/dokku/)
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[Docker 19.03: Rootless Mode (Experimental) | Hacker News](https://news.ycombinator.com/item?id=20542915)
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[google/nixery](https://github.com/google/nixery)
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## IaC
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[Install Terraform](https://learn.hashicorp.com/tutorials/terraform/install-cli)
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[Chef: Enabling the Coded Enterprise through Infrastructure, Security and Application Automation](https://www.chef.io)
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[Powerful infrastructure automation and delivery | Puppet](https://puppet.com)
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[Ansible is Simple IT Automation](https://www.ansible.com) |