flake.nix

   1 {
   2 # Pin down nixpkgs from github, instead of using global, system or user registries.
   3 inputs.nixpkgs.url = "github:NixOS/nixpkgs/b69f140a8028e4718bde4e5082f8df38e50b7971";
   4 #inputs.nixpkgs.url = "flake:nixpkgs";
   5 inputs.flake-utils.url = "github:numtide/flake-utils";
   6 inputs.shell = { type = "path"; path = "./shell"; flake = false; };
   7 inputs.secrets = { type = "path"; path = "./sec"; flake = false; };
   8 inputs.pass = { type = "path"; path = "./pass"; flake = false; };
   9 outputs = inputs: let
  10   remoteNixpkgsPatches = [
  11     { meta.description = "syncoid: fix PATH to let it use sudo";
  12       url = "https://github.com/NixOS/nixpkgs/pull/83901.diff";
  13       sha256 = "0q2dicmvl3h3hb9xdd870n5hf6lac489p000c7f1r6k70sh2id4l";
  14     }
  15     { meta.description = "sanoid: fix sanoid.conf generation";
  16       url = "https://github.com/NixOS/nixpkgs/pull/83904.diff";
  17       sha256 = "Sy9wPmL+Lfl7hMEeXYOEMk3KlfdL21aL92v6MiGajds=";
  18     }
  19     { meta.description = "nixos/public-inbox: init";
  20       url = "https://github.com/NixOS/nixpkgs/pull/77450.diff";
  21       sha256 = "13ikg7chpbf6rrg5sngbdb95q3awhdgl4g8vci42xmqyf208hzzd";
  22     }
  23     { meta.description = "nixos/security.gnupg: provisioning GnuPG-protected secrets through the Nix store";
  24       url = "https://github.com/NixOS/nixpkgs/pull/93659.diff";
  25       sha256 = "3im5nSrlM32DQUeq0Yp1MHkUcQyLdCGbxfJjgcc9e78=";
  26     }
  27     { meta.description = "nixos/croc: init";
  28       url = "https://github.com/NixOS/nixpkgs/pull/93629.diff";
  29       sha256 = "sha256-hzs5Z9cYCo6aNFfylB37W+1neejV4/kVyM1QmqVhVww=";
  30     }
  31     { meta.description = "dovecot_fts_xapian: 1.3.1 -> 1.3.3";
  32       url = "https://github.com/NixOS/nixpkgs/pull/94938.diff";
  33       sha256 = "10bjwcwpvq7nnqdpz0n7c61kb3b27v1abyc80pki7d13jmzzjc04";
  34     }
  35     { meta.description = "transmission: use freeformType on settings";
  36       url = "https://github.com/NixOS/nixpkgs/pull/96655.diff";
  37       sha256 = "sha256-lRKe8WnGPc8ojaD9W8ZS+NVMhIoGOCOj9njhqQhzaCM";
  38     }
  39     { meta.description = "tor: improve type-checking and hardening";
  40       url = "https://github.com/NixOS/nixpkgs/pull/97740.diff";
  41       sha256 = "sha256-ojmDxbGtfsvrUCtjkR7ZynayEGNDLwYl2Ea6yLOQpIk=";
  42     }
  43     /*
  44     { meta.description = "nixos/postfix: add sandbox";
  45       url = "https://github.com/NixOS/nixpkgs/pull/93305.diff";
  46       sha256 = "sha256-KmoaPj8G4kRlwkBKo/giyST8xQfnjX3OJhh68NKNaRI=";
  47     }
  48     { meta.description = "nixos/rspamd: add sandbox";
  49       url = "https://github.com/NixOS/nixpkgs/pull/93293.diff";
  50       sha256 = "sha256-7OfBzJPeGVhHf4ziYLwOpqaYbElCsjLkT4Y/bbCOPx0=";
  51     }
  52     */
  53     { meta.description = "nixos/syncoid: split in multiple systemd services";
  54       url = "https://github.com/NixOS/nixpkgs/pull/98455.diff";
  55       sha256 = "sha256-vmPzvjwAOSWqfizgDk3l6FrMD2OsG+8UpIkQvOUcXNI=";
  56     }
  57     { meta.description = "zerobin: update to v1.0.5";
  58       url = "https://github.com/NixOS/nixpkgs/pull/98734.diff";
  59       sha256 = "sha256-mEFvzR0ymwR7V3bJBnr9fR3GxA1jDfXZXQzo+jc5Nxc=";
  60     }
  61     /*
  62     { meta.description = "apparmor";
  63       url = "https://github.com/NixOS/nixpkgs/pull/93457.diff";
  64       sha256 = "sha256-JzS6/42AS9f0XUuC8ybw1tR8lpFwOC59BNqYN4mmeVI=";
  65     }
  66     */
  67   ];
  68   localNixpkgsPatches = [
  69     nixpkgs/patches/apparmor.diff
  70     #nixpkgs/patches/zerobin.diff
  71     #nixpkgs/patches/gitolite.diff
  72     #nixpkgs/patches/tor.diff
  73     #nixpkgs/patches/fix-ld-nix.diff
  74     #nixpkgs/patches/fix-ld-nix-apparmor.diff
  75   ];
  76   originPkgs = inputs.nixpkgs.legacyPackages."x86_64-linux";
  77   nixpkgs = originPkgs.applyPatches {
  78     name = "nixpkgs-patched";
  79     src = inputs.nixpkgs;
  80     patches = map originPkgs.fetchpatch remoteNixpkgsPatches ++ localNixpkgsPatches;
  81     postPatch = ''
  82       patch=$(printf '%s\n' ${builtins.concatStringsSep " "
  83          (map (p: p.sha256) remoteNixpkgsPatches ++ localNixpkgsPatches)} |
  84         sort | sha256sum | cut -c -7)
  85       echo "+patch-$patch" >.version-suffix
  86     '';
  87   };
  88   lib = originPkgs.lib;
  89   machines = builtins.mapAttrs (machineName: machineConfig:
  90     let cfg = import machineConfig { inherit inputs; }; in
  91     import (nixpkgs + "/nixos/lib/eval-config.nix") (cfg // {
  92       extraArgs = {
  93         inherit machineName inputs;
  94         machines = inputs.self.nixosConfigurations;
  95       } // (cfg.extraArgs or {});
  96       modules = cfg.modules ++ [({pkgs, ...}: {
  97         nix.registry.nixpkgs.flake = nixpkgs;
  98         nix.package = pkgs.nixFlakes;
  99         nix.extraOptions = "experimental-features = nix-command flakes";
 100         nixpkgs.overlays = import nixpkgs/overlays.nix;
 101         system.nixos.versionSuffix = ".${
 102           lib.substring 0 8 (inputs.self.lastModifiedDate or inputs.self.lastModified)}.${
 103           inputs.self.shortRev or "dirty"}";
 104         system.nixos.revision = lib.mkIf (inputs.self ? rev) inputs.self.rev;
 105         # Let 'nixos-version --json' know about the Git revision of this flake.
 106         system.configurationRevision = lib.mkIf (inputs.self ? rev) inputs.self.rev;
 107         boot.initrd.network.ssh.hostKeys = [ "/root/initrd/ssh.key" ];
 108         /*
 109         system.configurationRevision =
 110           if inputs.self ? rev
 111           then inputs.self.rev
 112           else throw "Refusing to build from a dirty Git tree!";
 113         */
 114         programs.ssh.knownHosts = {
 115           mermet = {
 116             hostNames = [ "mermet" "mermet.sourcephile.fr" ];
 117             publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFvKN2sIpH782MFjaOpcty1Hs/T/TPNJpXI08H3O3oxl";
 118           };
 119           losurdo = {
 120             hostNames = [ "losurdo" "losurdo.sourcephile.fr" ];
 121             publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHJkAq1T0Dxozt4RPylvWrUmeuejiG+n/owb3ucnWP9F";
 122           };
 123         };
 124       })];
 125     }));
 126   in
 127   {
 128     # nix -L build .#nixosConfigurations.${machineName}.config.system.build.toplevel
 129     nixosConfigurations = machines {
 130       losurdo = machines/losurdo.nix;
 131       mermet  = machines/mermet.nix;
 132     };
 133   }
 134   // inputs.flake-utils.lib.eachDefaultSystem (system:
 135     #let pkgs = inputs.nixpkgs.legacyPackages.${system}; in
 136     let
 137       pkgs = import nixpkgs {
 138         inherit system;
 139         overlays = import nixpkgs/overlays.nix;
 140       };
 141     in {
 142     legacyPackages = pkgs;
 143     devShell = import ./shell.nix { inherit inputs pkgs; };
 144     apps = builtins.mapAttrs (machineName: { config, ... }: let
 145       system = config.system.build.toplevel;
 146       keygrip = builtins.getAttr machineName {
 147         losurdo = "9AA84E6F6D71F9163C46BF396B141A0806219077";
 148         mermet  = "89F52A879E0019A966503AFFDE72EEA84CDFA3A7";
 149       };
 150       target = "root@${config.networking.hostName}.${config.networking.domain}";
 151       nixCopyFlags = ["--substitute-on-destination"];
 152       profile = "/nix/var/nix/profiles/system";
 153       in rec {
 154       # Example: nix run .#losurdo.switch
 155       "switch" = {
 156         type = "app";
 157         program = (pkgs.writeShellScript "switch" ''
 158           set -eux
 159           set -o pipefail
 160           nix-store --add-root machines/${machineName}.root --indirect --realise ${system}
 161           ${pkgs.nixFlakes}/bin/nix copy --to ssh://'${target}' \
 162            ${lib.escapeShellArgs nixCopyFlags} ${system}
 163           ${sendkeys.program}
 164           # Send the SSH key of the initrd
 165           gpg --decrypt '${config.security.gnupg.store}/initrd/ssh.key.gpg' |
 166           ssh '${target}' install -D -m 400 -o root -g root /dev/stdin /root/initrd/ssh.key
 167           # Send the Wireguard key of the initrd
 168           gpg --decrypt '${config.security.gnupg.store}/wireguard/wg-intra/privateKey.gpg' |
 169           ssh '${target}' install -D -m 400 -o root -g root /dev/stdin /root/initrd/wg-intra.key
 170           ssh '${target}' \
 171             nix-env --profile '${profile}' --set '${system}' '&&' \
 172             '${profile}'/bin/switch-to-configuration switch
 173         '').outPath;
 174       };
 175       # Example: nix run .#losurdo.sendkeys
 176       "sendkeys" = {
 177         type = "app";
 178         program = (pkgs.writeShellScript "sendkeys" ''
 179           set -eux
 180           set -o pipefail
 181           ssh '${target}' \
 182             ${pkgs.gnupg}/bin/gpg-connect-agent --no-autostart --homedir /var/lib/gnupg "'keyinfo --list'" /bye 2>&1 |
 183           grep -qx -e "gpg-connect-agent: no gpg-agent running in this session" \
 184                    -e "S KEYINFO ${keygrip} . . . 1 .*" || {
 185             # Send the GnuPG root key
 186             gpg --decrypt '${config.security.gnupg.store}/root/key.pass.gpg' |
 187             gpg --batch --pinentry-mode loopback --passphrase-fd 0 --export-secret-subkeys @root@${machineName} |
 188             ssh '${target}' \
 189               gpg --no-autostart --homedir /var/lib/gnupg --no-autostart --batch --pinentry-mode loopback --import
 190
 191             # Send the GnuPG root key's passphrase
 192             gpg --decrypt '${config.security.gnupg.store}/root/key.pass.gpg' |
 193             ssh '${target}' \
 194               gpg-preset-passphrase --homedir /var/lib/gnupg --preset ${keygrip}
 195           }
 196         '').outPath;
 197       };
 198     }) inputs.self.nixosConfigurations;}
 199   );
 200 }