52 lines
1.6 KiB
Markdown
52 lines
1.6 KiB
Markdown
---
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title: >
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Docker or Nix?
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pubDate: 2023-07-02
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permalink: >-
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daily/2023/07/02/docker-or-nix
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tags:
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- docker
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- nix
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---
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I've been a Nix user for about a year, starting with its package manager on my previously installed Linux distribution.
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I started to use Home Manager for my user configuration and dotfiles and later switched to the NixOS operating system.
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## Using Nix for software development
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I've also been using Nix Flakes for per-project configuration.
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A Flake file is a simple file written in the Nix language that defines the project's dependencies and installs them from the Nix package manager.
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Here is an example Flake for a PHP CLI application:
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```nix
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{
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inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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outputs = inputs@{ flake-parts, ... }:
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flake-parts.lib.mkFlake { inherit inputs; } {
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systems = [ "x86_64-linux" ];
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perSystem = { config, self', inputs', pkgs, system, ... }: {
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devShells = {
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default = pkgs.mkShell {
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buildInputs = with pkgs; [ php82 php82Packages.composer ];
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};
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};
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};
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};
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}
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```
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It declares that PHP 8.2 and Composer are available, even if I have different versions installed globally.
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## Will Nix replace Docker?
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Nix and Flakes have replaced Docker for me on some projects.
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If I have a simple setup and need a specific version of PHP or Node and some additional programs, I can get those from the Flake.
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I don't know if it'll replace Docker for me completely and work on more complex projects, but it's working well for me where I'm using it.
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