Must run borgmatic init as root

flake.lock

@@ -8,11 +8,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1703433843,
-        "narHash": "sha256-nmtA4KqFboWxxoOAA6Y1okHbZh+HsXaMPFkYHsoDRDw=",
+        "lastModified": 1703371241,
+        "narHash": "sha256-f7ZcabJ5iAH2IRfVuI55xSPZ9TbegFzvFxoKtIPNEn8=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "417caa847f9383e111d1397039c9d4337d024bf0",
+        "rev": "457669db4259ff69d1ac1183aaa6000420940c1f",
         "type": "github"
       },
       "original": {
@@ -139,11 +139,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1703545041,
-        "narHash": "sha256-nvQA+k1rSszrf4kA4eK2i/SGbzoXyoKHzzyzq/Jca1w=",
+        "lastModified": 1702453208,
+        "narHash": "sha256-0wRi9SposfE2wHqjuKt8WO2izKB/ASDOV91URunIqgo=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "a15b6e525f5737a47b4ce28445c836996fb2ea8c",
+        "rev": "7763c6fd1f299cb9361ff2abf755ed9619ef01d6",
         "type": "github"
       },
       "original": {
@@ -186,11 +186,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1703200384,
-        "narHash": "sha256-q5j06XOsy0qHOarsYPfZYJPWbTbc8sryRxianlEPJN0=",
+        "lastModified": 1703068421,
+        "narHash": "sha256-WSw5Faqlw75McIflnl5v7qVD/B3S2sLh+968bpOGrWA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0b3d618173114c64ab666f557504d6982665d328",
+        "rev": "d65bceaee0fb1e64363f7871bc43dc1c6ecad99f",
         "type": "github"
       },
       "original": {
@@ -214,11 +214,11 @@
     "secrets": {
       "flake": false,
       "locked": {
-        "lastModified": 1703545643,
-        "narHash": "sha256-FS/acsRQ01Gj39P1t5CQ6cKOdwADmenk//vVmpA/EgU=",
+        "lastModified": 1702936962,
+        "narHash": "sha256-uIZ2uPE26JKJ58463ejHMiAOpqBwflyN6tCmZ89vaSQ=",
         "ref": "refs/heads/master",
-        "rev": "ef1f91b155f3bdc4efb2824ad0c47b21b8b1bbfa",
-        "revCount": 9,
+        "rev": "c6db5c3ba8bff0e618fc3e31c9680863c5e53800",
+        "revCount": 5,
         "type": "git",
         "url": "ssh://git@git.vimium.com/jordan/nix-secrets.git"
       },

hosts/helios/default.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, inputs, ... }:
+{ config, lib, pkgs, ... }:
 
 {
   imports = [
@@ -6,19 +6,13 @@
     ../desktop.nix
   ];
 
-  boot = {
-    loader.grub = {
-      enable = true;
-      device = "/dev/sda";
-      zfsSupport = true;
-    };
-  };
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/sda";
+  boot.loader.grub.zfsSupport = true;
 
-  networking = {
-    hostName = "helios";
-    hostId = "47d23505";
-    networkmanager.enable = true;
-  };
+  networking.hostName = "helios";
+  networking.hostId = "47d23505";
+  networking.networkmanager.enable = true;
 
   nix.package = pkgs.nixFlakes;
   nix.extraOptions = ''
@@ -46,15 +40,6 @@
       gpg.enable = true;
       pass.enable = true;
     };
-    services = {
-      borgmatic = {
-        enable = true;
-        directories = [
-          "/home/jordan/Documents"
-        ];
-        repoPath = "ssh://b9cjl9hq@b9cjl9hq.repo.borgbase.com/./repo";
-      };
-    };
     shell = {
       git.enable = true;
       zsh.enable = true;

hosts/new.md

@@ -0,0 +1,30 @@
+# Steps to add a new host
+
+1. Generate an SSH host key to be used for secrets
+`ssh-keygen -t ed25519 -f /tmp/ssh_host_ed25519_key -C ""`
+1. Go to borgmatic.com, add the generated SSH key and create a new
+repository
+1. Add a new host entry to nix-secrets/secrets.nix
+1. Generate a repository passphrase in nix-secrets
+1. Commit nix-secrets and run `nix flake update` in nix-config
+1. Add a README.md and default.nix suited to the host
+1. Define (or generate with `nixos-generate-config`) a
+hardware-configuration.nix
+1. Define the disk layout to be used by disko
+1. Commit nix-config
+1. Boot the NixOS installer
+1. Copy the generated SSH host key to `/etc/ssh`
+1. Run `nix run github:nix-community/nixos-anywhere -- --flake .#<hostname> root@<ip address>`
+
+## Post install
+> The backup and Tailscale modules won't work until the following steps are
+> completed.
+
+1. Run `sudo borgmatic init --encryption repokey-blake2`
+1. Restart `borgmatic`
+1. Run `sudo tailscale up --login-server https://headscale.vimium.net`
+1. Visit the URL, then SSH onto `vps1` and run
+`headscale --user mesh nodes register --key <key>`
+1. (Optionally) Give the Tailscale node a friendly name with
+`headscale node rename -i <index> <hostname>`
+

hosts/odyssey/default.nix

@@ -52,6 +52,34 @@
     };
   };
 
+  age.secrets."passwords/services/borg/odyssey-passphrase" = {
+    file = "${inputs.secrets}/passwords/services/borg/odyssey-passphrase.age";
+  };
+
+  services.borgmatic = {
+    enable = true;
+    settings = {
+      source_directories = [
+        "/home/jordan/Documents"
+      ];
+      repositories = [
+        { label = "borgbase"; path = "ssh://iqwu22oq@iqwu22oq.repo.borgbase.com/./repo"; }
+      ];
+      storage = {
+        encryption_passcommand = "cat ${config.age.secrets."passwords/services/borg/odyssey-passphrase".path}";
+        ssh_command = "ssh -i /etc/ssh/ssh_host_ed25519_key";
+      };
+      retention = {
+        keep_daily = 7;
+        keep_weekly = 4;
+        keep_monthly = 6;
+      };
+    };
+  };
+
+  # Without this override, `cat` is unavailable for `encryption_passcommand`
+  systemd.services.borgmatic.confinement.fullUnit = true;
+
   modules = {
     desktop = {
       apps.qbittorrent.enable = true;
@@ -83,15 +111,6 @@
       gpg.enable = true;
       pass.enable = true;
     };
-    services = {
-      borgmatic = {
-        enable = true;
-        directories = [
-          "/home/jordan/Documents"
-        ];
-        repoPath = "ssh://iqwu22oq@iqwu22oq.repo.borgbase.com/./repo";
-      };
-    };
     shell = {
       git.enable = true;
       zsh.enable = true;

hosts/pi/default.nix

@@ -29,6 +29,21 @@
 
   sound.enable = true;
 
+  age.secrets."passwords/networks.age" = {
+    file = "${inputs.secrets}/passwords/networks.age";
+  };
+
+  networking = {
+    wireless = {
+      enable = true;
+      interfaces = [ "wlan0" ];
+      environmentFile = config.age.secrets."passwords/networks.age".path;
+      networks = {
+        "Apollo 600 Mbps".psk = "@PSK_APOLLO@";
+      };
+    };
+  };
+
   security.rtkit.enable = true;
   services.pipewire = {
     enable = true;
@@ -93,25 +108,35 @@
     };
   };
 
-  modules = {
-    networking = {
-      wireless = {
-        enable = true;
-        interfaces = [ "wlan0" ];
+  age.secrets."passwords/services/borg/pi-passphrase" = {
+    file = "${inputs.secrets}/passwords/services/borg/pi-passphrase.age";
+  };
+
+  services.borgmatic = {
+    enable = true;
+    settings = {
+      source_directories = [
+        "/var/lib/mosquitto"
+        "/var/lib/zigbee2mqtt"
+      ];
+      repositories = [
+        { label = "borgbase"; path = "ssh://qcw86s11@qcw86s11.repo.borgbase.com/./repo"; }
+      ];
+      storage = {
+        encryption_passcommand = "cat ${config.age.secrets."passwords/services/borg/pi-passphrase".path}";
+        ssh_command = "ssh -i /etc/ssh/ssh_host_ed25519_key";
       };
-    };
-    services = {
-      borgmatic = {
-        enable = true;
-        directories = [
-          "/var/lib/mosquitto"
-          "/var/lib/zigbee2mqtt"
-        ];
-        repoPath = "ssh://qcw86s11@qcw86s11.repo.borgbase.com/./repo";
+      retention = {
+        keep_daily = 7;
+        keep_weekly = 4;
+        keep_monthly = 6;
       };
     };
   };
 
+  # Without this override, `cat` is unavailable for `encryption_passcommand`
+  systemd.services.borgmatic.confinement.fullUnit = true;
+
   environment.systemPackages = with pkgs; [
     libraspberrypi
     raspberrypi-eeprom

modules/default.nix

@@ -26,10 +26,8 @@
     ./editors/neovim
     ./editors/vscode.nix
     ./networking/tailscale.nix
-    ./networking/wireless.nix
     ./security/gpg.nix
     ./security/pass.nix
-    ./services/borgmatic
     ./shell/git
     ./shell/zsh
   ];

modules/networking/wireless.nix

@@ -1,36 +0,0 @@
-{ config, lib, pkgs, inputs, ... }:
-
-with lib;
-
-let cfg = config.modules.networking.wireless;
-in {
-  options.modules.networking.wireless = {
-    enable = mkOption {
-      default = false;
-      example = true;
-      description = mdDoc "Automatically connect to known networks";
-    };
-    interfaces = mkOption {
-      default = [ ];  # All interfaces
-      example = [ "wlan0" ];
-      description = mdDoc "Interfaces for `wpa_supplicant` to bind to";
-    };
-  };
-
-  config = mkIf cfg.enable {
-    age.secrets."passwords/networks" = {
-      file = "${inputs.secrets}/passwords/networks.age";
-    };
-
-    networking = {
-      wireless = {
-        enable = true;
-        interfaces = cfg.interfaces;
-        environmentFile = config.age.secrets.passwords/networks.path;
-        networks = {
-          "Apollo 600 Mbps".psk = "@PSK_APOLLO@";
-        };
-      };
-    };
-  };
-}

modules/services/borgmatic/default.nix

@@ -1,57 +0,0 @@
-{ config, lib, pkgs, inputs, ... }:
-
-with lib;
-
-let
-  cfg = config.modules.services.borgmatic;
-  hostname = config.networking.hostName;
-in {
-  options.modules.services.borgmatic = {
-    enable = mkOption {
-      default = false;
-      example = true;
-      description = mdDoc "Enable backups on this host with `borgmatic`";
-    };
-    directories = mkOption {
-      type = types.listOf types.str;
-      default = [];
-      example = [
-        "/home/jordan/Documents"
-      ];
-      description = mdDoc "List of directories to backup";
-    };
-    repoPath = mkOption {
-      type = types.str;
-      example = "ssh://example@example.repo.borgbase.com/./repo";
-      description = mdDoc "Destination borg repository for backup";
-    };
-  };
-
-  config = mkIf cfg.enable {
-    age.secrets."passwords/services/borg/${hostname}-passphrase" = {
-      file = "${inputs.secrets}/passwords/services/borg/${hostname}-passphrase.age";
-    };
-
-    services.borgmatic = {
-      enable = true;
-      settings = {
-        source_directories = cfg.directories;
-        repositories = [
-          { label = "borgbase"; path = cfg.repoPath; }
-        ];
-        storage = {
-          encryption_passcommand = "cat ${config.age.secrets."passwords/services/borg/${hostname}-passphrase".path}";
-          ssh_command = "ssh -i /etc/ssh/ssh_host_ed25519_key";
-        };
-        retention = {
-          keep_daily = 7;
-          keep_weekly = 4;
-          keep_monthly = 6;
-        };
-      };
-    };
-
-    # Without this override, `cat` is unavailable for `encryption_passcommand`
-    systemd.services.borgmatic.confinement.fullUnit = true;
-  };
-}