serokell/deploy-rs
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Merge pull request #207 from Flakebi/nixpkgs-cache

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Make it possible to not rebuild deploy-rs
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Roman Melnikov 2023-05-11 12:37:24 +08:00 committed by GitHub
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2 changed files with 28 additions and 1 deletions
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27
README.md
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@ -86,6 +86,33 @@ A basic example of a flake that works with `deploy-rs` and deploys a simple NixO
}
```
In the above configuration, `deploy-rs` is built from the flake, not from nixpkgs. To take advantage of the nixpkgs binary cache, the deploy-rs package can be overwritten in an overlay:
```nix
{
# ...
outputs = { self, nixpkgs, deploy-rs }: let
system = "x86_64-linux";
# Unmodified nixpkgs
pkgs = import nixpkgs { inherit system; };
# nixpkgs with deploy-rs overlay but force the nixpkgs package
deployPkgs = import nixpkgs {
inherit system;
overlays = [
deploy-rs.overlay
(self: super: { deploy-rs = { inherit (pkgs) deploy-rs; lib = super.deploy-rs.lib; }; })
];
};
in {
# ...
deploy.nodes.some-random-system.profiles.system = {
user = "root";
path = deployPkgs.deploy-rs.lib.activate.nixos self.nixosConfigurations.some-random-system;
};
};
}
```
### Profile
This is the core of how `deploy-rs` was designed, any number of these can run on a node, as any user (see further down for specifying user information). If you want to mimic the behaviour of traditional tools like NixOps or Morph, try just defining one `profile` called `system`, as root, containing a nixosSystem, and you can even similarly use [home-manager](https://github.com/nix-community/home-manager) on any non-privileged user.

2
flake.nix
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@ -77,7 +77,7 @@
name = base.name + "-activate-rs";
text = ''
#!${final.runtimeShell}
exec ${self.packages.${system}.default}/bin/activate "$@"
exec ${final.deploy-rs.deploy-rs}/bin/activate "$@"
'';
executable = true;
destination = "/activate-rs";