Nixos-shell: Difference between revisions
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[https://github.com/Mic92/nixos-shell | {{DISPLAYTITLE:{{#if:{{NAMESPACE}}|{{NAMESPACE}}:|}}{{lcfirst:{{PAGENAME}}}}}} | ||
[https://github.com/Mic92/nixos-shell nixos-shell] is a small helper script for spawning lightweight NixOS virtual machines in a shell. | |||
== Installation == | == Installation == | ||
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{{file|myvm.nix|nix|<nowiki> | {{file|myvm.nix|nix|<nowiki> | ||
{ pkgs, ... }: { | { pkgs, ... }: { | ||
services.dokuwiki.sites."localhost" = { | services.dokuwiki.sites."localhost" = { | ||
enable = true; | enable = true; | ||
settings.title = "My Wiki"; | settings.title = "My Wiki"; | ||
}; | }; | ||
} | } | ||
</nowiki>}} | </nowiki>}} | ||
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Mounting is done through the network filesystem protocol 9p. Currently [https://github.com/Mic92/nixos-shell/issues/71 it's not possible] to mount the target directory with a specific UID/GID, so you'll have to change the permissions on the host directory according to your needs. | Mounting is done through the network filesystem protocol 9p. Currently [https://github.com/Mic92/nixos-shell/issues/71 it's not possible] to mount the target directory with a specific UID/GID, so you'll have to change the permissions on the host directory according to your needs. | ||
=== Inside Nix Flake === | |||
Using following [[Flakes]] example, you can start a virtual machine using nixos-shell by just typing <code>nix run</code> | |||
{{file|flake.nix|nix|<nowiki> | |||
{ | |||
description = "Spawns lightweight nixos vm in a shell"; | |||
inputs = { | |||
nixpkgs.url = "nixpkgs/nixos-23.11"; | |||
nixos-shell.url = "github:Mic92/nixos-shell"; | |||
}; | |||
outputs = { self, nixpkgs, nixos-shell }: let | |||
pkgs = nixpkgs.legacyPackages.x86_64-linux; | |||
start = | |||
pkgs.writeShellScriptBin "start" '' | |||
set -e | |||
export QEMU_NET_OPTS="hostfwd=tcp::8080-:80" | |||
${pkgs.nixos-shell}/bin/nixos-shell --flake . | |||
''; | |||
in { | |||
nixosConfigurations.vm = nixpkgs.lib.nixosSystem { | |||
system = "x86_64-linux"; | |||
modules = [ | |||
(import ./myvm.nix) | |||
nixos-shell.nixosModules.nixos-shell | |||
]; | |||
}; | |||
packages = { inherit start; }; | |||
defaultPackage.x86_64-linux = start; | |||
}; | |||
} | |||
</nowiki>}} | |||
The configuration of the virtual machine is inside the file <code>myvm.nix</code> in the same directory. The virtual machine will use the nixpkgs source defined in the flake inputs. | |||
[[Category:Container]] | |||