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# krops (krebs ops)
krops is a lightweigt toolkit to deploy NixOS systems, remotely or locally.
## Some Features
- store your secrets in passwordstore
- build your system remotely
- minimal overhead (it's basically just `nixos-rebuild switch`!)
- run from custom nixpkgs branch/checkout/fork
## Minimal Example
Create a file named `krops.nix` (name doesn't matter) with following content:
```
let
krops = (import <nixpkgs> {}).fetchgit {
url = https://cgit.krebsco.de/krops/;
rev = "3022582ade8049e6ccf18f358cedb996d6716945";
sha256 = "0k3zhv2830z4bljcdvf6ciwjihk2zzcn9y23p49c6sba5hbsd6jb";
};
lib = import "${krops}/lib";
pkgs = import "${krops}/pkgs" {};
source = lib.evalSource [{
nixpkgs.git = {
ref = "4b4bbce199d3b3a8001ee93495604289b01aaad3";
url = https://github.com/NixOS/nixpkgs;
};
nixos-config.file = toString (pkgs.writeText "nixos-config" ''
{ pkgs, ... }: {
fileSystems."/" = { device = "/dev/sda1"; };
boot.loader.systemd-boot.enable = true;
services.openssh.enable = true;
environment.systemPackages = [ pkgs.git ];
}
'');
}];
in
pkgs.krops.writeDeploy "deploy" {
source = source;
target = "root@192.168.56.101";
}
```
and run `$(nix-build --no-out-link krops.nix)` to deploy the target machine.
Under the hood, this will make the sources available on the target machine
below `/var/src`, and execute `nixos-rebuild switch -I /var/src`.
## References
- [In-depth example](http://tech.ingolf-wagner.de/nixos/krops/) by [Ingolf Wagner](https://ingolf-wagner.de/)
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