nixinate/flake.nix

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2022-01-03 10:50:50 +00:00
{
description = "Nixinate your systems 🕶";
inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-21.11";
outputs = { self, nixpkgs, ... }:
let
version = builtins.substring 0 8 self.lastModifiedDate;
supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; overlays = [ self.overlay ]; });
in rec
{
overlay = final: prev: {
generateApps = flake:
let
machines = builtins.attrNames flake.nixosConfigurations;
validMachines = final.lib.remove "" (final.lib.forEach machines (x: final.lib.optionalString (flake.nixosConfigurations."${x}"._module.args ? nixinate) "${x}" ));
mkDeployScript = machine: final.writeScript "deploy-${machine}.sh" ''
set -e
SSH_USER=${flake.nixosConfigurations.${machine}._module.args.nixinate.sshUser}
SSH_HOST=${flake.nixosConfigurations.${machine}._module.args.nixinate.host}
echo "🚀 Deploying nixosConfigurations.${machine} from ${flake}"
echo "👤 SSH User: $SSH_USER"
echo "🌐 SSH Host: $SSH_HOST"
echo "🚀 Sending flake to ${machine} via rsync:"
( set -x; ${final.rsync}/bin/rsync -q -vz --recursive --zc=zstd ${flake}/* $SSH_USER@$SSH_HOST:/tmp/nixcfg/ )
echo "🤞 Activating configuration on ${machine} via ssh:"
( set -x; ${final.openssh}/bin/ssh -t $SSH_USER@$SSH_HOST 'sudo nixos-rebuild switch --flake /tmp/nixcfg#${machine}' )
'';
in
{
nixinate =
(
nixpkgs.lib.genAttrs
validMachines
(x:
{
type = "app";
program = toString (mkDeployScript x);
}
)
);
};
};
nixinate = forAllSystems (system: nixpkgsFor.${system}.generateApps);
};
}