/nix-rehash

Nix development utils that will blow up your mind

Primary LanguageNix

========== nix-rehash

Nix development utils that will blow up your mind

reService - fullstack@dev

reService takes your nixos config of services and creates user-enabled supervisord config that you can use for development or deployment on non nixos systems. Having deterministic fullstack in development has never been more awesome.

  • Create default.nix

    { pkgs ? import <nixpkgs> {}
, projectName ? "myProject"
, nix-rehash ? import <nix-rehash> }:
  with pkgs.lib;
  with pkgs;

let
  services = nix-rehash.reService {
    name = "${projectName}";
    configuration = let servicePrefix = "/tmp/${projectName}/services"; in [
      ({ config, pkgs, ...}: {
        services.postgresql.enable = true;
        services.postgresql.package = pkgs.postgresql92;
        services.postgresql.dataDir = "${servicePrefix}/postgresql";
      })
    ];
  };
in myEnvFun {
  name = projectName;
  buildInputs = [ services ];
}

  • install nix-env -f default.nix -i

  • load environemnt load-env-myProject

  • start services myProject-start-services, control services myProject-control-services, stop services myProject-stop-services

Now build this with hydra and pass the environment around :)

reContain - heroku@home

reContain makes nixos enabled installable container that can auto-update itself. Now you can build container on hydra and auto update it on host machine. Staging or deployments have never been easier :)

  • Create default.nix

    { pkgs ? import <nixpkgs>
, name ? "myProject"
, nix-rehash ? import <nix-rehash> }:
  with pkgs.lib;
  with pkgs;

{
  container = nix-rehash.reContain {
    inherit name;
    configuration = [{
    services.openssh.enable = true;
    services.openssh.ports = [ 25 ];
    users.extraUsers.root.openssh.authorizedKeys.keys = [ (builtins.readFile ./id_rsa.pub) ];
    }];
  };
}

  • do nix-env [-f default.nix] -i myProject-container or build with hydra and add a channel

  • start container: sudo myProject-start-container

  • ssh to container: ssh localhost -p 25

  • enable auto updates with cron:

    * * * * * nix-env -i myProject-container && sudo $HOME/.nix-profile/bin/myProject-update-container

  • stop container: sudo myProject-stop-container