README.md: be more concise
This commit is contained in:
Timothy DeHerrera
parent
6a6efbdda0
commit
e7153d31fe
1 changed files with 59 additions and 64 deletions
123
README.md
123
README.md
|
|
@ -1,104 +1,99 @@
|
|||
# Introduction
|
||||
|
||||
This project is under construction as a rewrite of my [legacy][old]
|
||||
NixOS configuration using the experimental [flakes][rfc] mechanism. Its aim is
|
||||
to provide a generic template repository which neatly separates concerns and
|
||||
allows one to get up and running with NixOS faster than ever.
|
||||
A NixOS configuration template using the experimental [flakes][rfc] mechanism.
|
||||
Its aim is to provide a generic repository which neatly separates concerns
|
||||
and allows one to get up and running with NixOS faster than ever.
|
||||
|
||||
Flakes are still an experimental feature, but once they finally get merged
|
||||
even more will become possible, including [nixops](https://nixos.org/nixops)
|
||||
even more will become possible, i.e. [nixops](https://nixos.org/nixops)
|
||||
support.
|
||||
|
||||
|
||||
#### [Flake Talk][video]
|
||||
|
||||
# Usage
|
||||
|
||||
Enter a nix-shell either manually or automatically using [direnv][direnv]. This
|
||||
will set up the experimental nix features that need to be available to use
|
||||
[flakes][pr].
|
||||
```sh
|
||||
# not needed if using direnv
|
||||
nix-shell
|
||||
|
||||
Start a new branch based on the template branch:
|
||||
```
|
||||
git checkout -b <new_branch> template
|
||||
```
|
||||
git checkout -b $new_branch template
|
||||
|
||||
You may want to use a generated hardware config for your machine:
|
||||
```
|
||||
nixos-generate-config --show-hardware-config > ./hosts/<new_host>.nix
|
||||
```
|
||||
# generate hardware config
|
||||
nixos-generate-config --show-hardware-config > ./hosts/${new_host}.nix
|
||||
|
||||
|
||||
A basic `rebuild` command is included in the shell to replace
|
||||
`nixos-rebuild` for now:
|
||||
# wrapper for `nix build` bypassing `nixos-rebuild`
|
||||
# Usage: rebuild [([host] {switch|boot|test|dry-activate})|iso]
|
||||
|
||||
# You can specify any of the host configurations living in the ./hosts
|
||||
# directory. If omitted, it will default to your systems current hostname.
|
||||
rebuild $new_host switch
|
||||
|
||||
```
|
||||
Usage: rebuild [host] {switch|boot|test}
|
||||
|
||||
#example using above generated config
|
||||
rebuild <new_host> switch
|
||||
```
|
||||
|
||||
You can specify one of the host configurations from the [hosts](hosts)
|
||||
directory. If omitted, it will default to your systems current hostname.
|
||||
|
||||
And now you should be ready to start writing your nix configuration or import
|
||||
some of the already existing profiles. Review [contributing](#contributing)
|
||||
below on how to structure your expressions. And be sure to update the
|
||||
[locale.nix](local/locale.nix) for your region.
|
||||
your current one. Review [structure](#structure) below on how to build your
|
||||
layout. And be sure to update the [locale.nix](local/locale.nix) for your
|
||||
region.
|
||||
|
||||
You can always check out my personal branch
|
||||
[`nrdxp`](https://github.com/nrdxp/nixflk/tree/nrdxp), for concrete examples.
|
||||
You can always checkout my personal branch
|
||||
[`nrdxp`](https://github.com/nrdxp/nixflk/tree/nrdxp) for more concrete examples.
|
||||
|
||||
## Additional Capabilities
|
||||
|
||||
Making iso images:
|
||||
```
|
||||
```sh
|
||||
# make an iso image based on ./hosts/niximg.nix
|
||||
rebuild iso
|
||||
|
||||
# install any package the flake exports
|
||||
nix profile install ".#packages.x86_64-linux.myPackage"
|
||||
```
|
||||
|
||||
Will make a minimal and bootable iso image of the [niximg](hosts/niximg.nix)
|
||||
configuration. You can customize the image by editing this file.
|
||||
this flake exports overlays and modules as well:
|
||||
```nix
|
||||
# external flake.nix
|
||||
{
|
||||
# ...
|
||||
inputs.nixflk.url = "github:nrdxp/nixflk";
|
||||
|
||||
outputs = { self, nixpkgs, nixflk }: {
|
||||
|
||||
nixosConfigurations.myConfig = nixpkgs.lib.nixosSystem {
|
||||
system = "x86_64-linux";
|
||||
modules = [
|
||||
{ nixpkgs.overlays = nixflk.overlays; }
|
||||
nixflk.nixosModules.myModule
|
||||
];
|
||||
};
|
||||
};
|
||||
}
|
||||
|
||||
You can also install the packages declared in [pkgs](pkgs) without needing
|
||||
to install NixOS. For example:
|
||||
```
|
||||
# from top-level
|
||||
nix profile install ".#packages.x86_64-linux.purs"
|
||||
```
|
||||
|
||||
A similar mechanism exists to import the modules and overlays declared in the
|
||||
flake to allow for seamless sharing between configurations.
|
||||
# Structure
|
||||
|
||||
# Structure and Layout
|
||||
|
||||
The purpose of this repository is to provide a standardized template structure
|
||||
for NixOS machine expressions, thus enabling simpler sharing and reuse of nix
|
||||
expressions.
|
||||
|
||||
Say your friend and you are using this repository, each with your own unique
|
||||
nix expressions. By simply importing your friends flake from `flake.nix` as an
|
||||
input, you can have access to all of the packages, modules, overlays, and even
|
||||
entire system configurations your friend has defined!
|
||||
The structure is here to keep things simple and clean. Anything sufficiently
|
||||
generic can ultimately be exported for use in other flakes without getting
|
||||
tied up in user concerns. An additional bonus of is the ability to trivially
|
||||
swap or combine [profiles](#profiles).
|
||||
|
||||
## Hosts
|
||||
Distributions for particular machines should be stored in the [hosts](hosts)
|
||||
directory. Every file in this directory will be added automatically to the
|
||||
the `nixosConfigurations` flake output. See the
|
||||
the `nixosConfigurations` flake output and thus deployable. See the
|
||||
[`default.nix`](hosts/default.nix) for the implementation details.
|
||||
|
||||
## Profiles
|
||||
More abstract configurations suitable for reuse by multiple machines should
|
||||
go in the [profiles](profiles) directory. A distinction is made between a module
|
||||
and profile, in that a profile is simply a regular NixOS module, without any new
|
||||
option declarations. If you want to declare new
|
||||
[options](https://nixos.org/nixos/manual/options.html), create an expression
|
||||
under the [modules](modules) directory instead.
|
||||
More abstract expressions suitable for reuse by deployments should live in the
|
||||
[profiles](profiles) directory. A distinction is made between a module and
|
||||
profile, in that a profile is simply a regular NixOS module, without any _new_
|
||||
option declarations.
|
||||
|
||||
Every profile should have a `default.nix` to easily import it. You can also
|
||||
stick things in the profile's subdirectory which are not automatically
|
||||
imported, but are meant to be manually imported from a host (useful for less
|
||||
common, or specialized configurations).
|
||||
Every directory here is a profile and should have a `default.nix` to import it.
|
||||
Profiles can have subprofiles which are just subdirectories with a `default.nix`.
|
||||
There's no hard rule that everything in the folder must be imported by its
|
||||
`default.nix` so you can also store relevant configurations that may not be used
|
||||
as often and just import them directly from a [host](#hosts) when needed.
|
||||
|
||||
Importantly, every subdirectory in a profile should be independently importable.
|
||||
For example, a zsh directory lives under [profiles/develop](profiles/develop/zsh).
|
||||
|
|
|
|||
Loading…
Reference in a new issue