Backup des Fachschaftsaccounts

flake.lock

@@ -21,11 +21,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1704152458,
+        "lastModified": 1706830856,
-        "narHash": "sha256-DS+dGw7SKygIWf9w4eNBUZsK+4Ug27NwEWmn2tnbycg=",
+        "narHash": "sha256-a0NYyp+h9hlb7ddVz4LUn1vT/PLwqfrWYcHMvFB1xYg=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "88a2cd8166694ba0b6cb374700799cec53aef527",
+        "rev": "b253292d9c0a5ead9bc98c4e9a26c6312e27d69f",
         "type": "github"
       },
       "original": {
@@ -38,11 +38,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1685518550,
+        "lastModified": 1701680307,
-        "narHash": "sha256-o2d0KcvaXzTrPRIo0kOLV0/QXHhDQ5DTi+OxcjO8xqY=",
+        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "a1720a10a6cfe8234c0e93907ffe81be440f4cef",
+        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
         "type": "github"
       },
       "original": {
@@ -53,11 +53,11 @@
     },
     "impermanence": {
       "locked": {
-        "lastModified": 1703656108,
+        "lastModified": 1706639736,
-        "narHash": "sha256-hCSUqdFJKHHbER8Cenf5JRzjMlBjIdwdftGQsO0xoJs=",
+        "narHash": "sha256-CaG4j9+UwBDfinxxvJMo6yOonSmSo0ZgnbD7aj2Put0=",
         "owner": "nix-community",
         "repo": "impermanence",
-        "rev": "033643a45a4a920660ef91caa391fbffb14da466",
+        "rev": "cd13c2917eaa68e4c49fea0ff9cada45440d7045",
         "type": "github"
       },
       "original": {
@@ -71,16 +71,16 @@
         "blobs": "blobs",
         "flake-compat": [],
         "nixpkgs": [],
-        "nixpkgs-22_11": "nixpkgs-22_11",
         "nixpkgs-23_05": "nixpkgs-23_05",
+        "nixpkgs-23_11": "nixpkgs-23_11",
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1703666786,
+        "lastModified": 1706742486,
-        "narHash": "sha256-SLPNpM/rI8XPyVJAxMYAe+n6NiYSpuXvdwPILHP4yZI=",
+        "narHash": "sha256-sv/MISTeD0rqeVivpZJpynboMWJp6i62OmrZX1rGl38=",
         "ref": "refs/heads/master",
-        "rev": "b5023b36a1f6628865cb42b4353bd2ddde0ea9f4",
+        "rev": "9e36323ae3dde787f761420465c3ae560f3dbf29",
-        "revCount": 575,
+        "revCount": 577,
         "type": "git",
         "url": "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git"
       },
@@ -91,11 +91,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1703961334,
+        "lastModified": 1707092692,
-        "narHash": "sha256-M1mV/Cq+pgjk0rt6VxoyyD+O8cOUiai8t9Q6Yyq4noY=",
+        "narHash": "sha256-ZbHsm+mGk/izkWtT4xwwqz38fdlwu7nUUKXTOmm4SyE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b0d36bd0a420ecee3bc916c91886caca87c894e9",
+        "rev": "faf912b086576fd1a15fca610166c98d47bc667e",
         "type": "github"
       },
       "original": {
@@ -105,28 +105,13 @@
         "type": "github"
       }
     },
-    "nixpkgs-22_11": {
-      "locked": {
-        "lastModified": 1669558522,
-        "narHash": "sha256-yqxn+wOiPqe6cxzOo4leeJOp1bXE/fjPEi/3F/bBHv8=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "ce5fe99df1f15a09a91a86be9738d68fadfbad82",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "ref": "nixos-22.11",
-        "type": "indirect"
-      }
-    },
     "nixpkgs-23_05": {
       "locked": {
-        "lastModified": 1684782344,
+        "lastModified": 1704290814,
-        "narHash": "sha256-SHN8hPYYSX0thDrMLMWPWYulK3YFgASOrCsIL3AJ78g=",
+        "narHash": "sha256-LWvKHp7kGxk/GEtlrGYV68qIvPHkU9iToomNFGagixU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8966c43feba2c701ed624302b6a935f97bcbdf88",
+        "rev": "70bdadeb94ffc8806c0570eb5c2695ad29f0e421",
         "type": "github"
       },
       "original": {
@@ -135,14 +120,29 @@
         "type": "indirect"
       }
     },
+    "nixpkgs-23_11": {
+      "locked": {
+        "lastModified": 1706098335,
+        "narHash": "sha256-r3dWjT8P9/Ah5m5ul4WqIWD8muj5F+/gbCdjiNVBKmU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a77ab169a83a4175169d78684ddd2e54486ac651",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-23.11",
+        "type": "indirect"
+      }
+    },
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1703961334,
+        "lastModified": 1706550542,
-        "narHash": "sha256-M1mV/Cq+pgjk0rt6VxoyyD+O8cOUiai8t9Q6Yyq4noY=",
+        "narHash": "sha256-UcsnCG6wx++23yeER4Hg18CXWbgNpqNXcHIo5/1Y+hc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b0d36bd0a420ecee3bc916c91886caca87c894e9",
+        "rev": "97b17f32362e475016f942bbdfda4a4a72a8a652",
         "type": "github"
       },
       "original": {
@@ -155,11 +155,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1703950681,
+        "lastModified": 1705957679,
-        "narHash": "sha256-veU5bE4eLOmi7aOzhE7LfZXcSOONRMay0BKv01WHojo=",
+        "narHash": "sha256-Q8LJaVZGJ9wo33wBafvZSzapYsjOaNjP/pOnSiKVGHY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0aad9113182747452dbfc68b93c86e168811fa6c",
+        "rev": "9a333eaa80901efe01df07eade2c16d183761fa3",
         "type": "github"
       },
       "original": {
@@ -178,11 +178,11 @@
         "nixpkgs-stable": []
       },
       "locked": {
-        "lastModified": 1703939133,
+        "lastModified": 1706424699,
-        "narHash": "sha256-Gxe+mfOT6bL7wLC/tuT2F+V+Sb44jNr8YsJ3cyIl4Mo=",
+        "narHash": "sha256-Q3RBuOpZNH2eFA1e+IHgZLAOqDD9SKhJ/sszrL8bQD4=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "9d3d7e18c6bc4473d7520200d4ddab12f8402d38",
+        "rev": "7c54e08a689b53c8a1e5d70169f2ec9e2a68ffaf",
         "type": "github"
       },
       "original": {
@@ -209,11 +209,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1703991717,
+        "lastModified": 1707015547,
-        "narHash": "sha256-XfBg2dmDJXPQEB8EdNBnzybvnhswaiAkUeeDj7fa/hQ=",
+        "narHash": "sha256-YZr0OrqWPdbwBhxpBu69D32ngJZw8AMgZtJeaJn0e94=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "cfdbaf68d00bc2f9e071f17ae77be4b27ff72fa6",
+        "rev": "23f61b897c00b66855074db471ba016e0cda20dd",
         "type": "github"
       },
       "original": {

nixos/machines/bragi/configuration.nix

@@ -0,0 +1,15 @@
+{
+  imports = [
+    ./hardware-configuration.nix
+    ../../roles
+    ../../roles/hardware.nix
+    ./network.nix
+    ../../modules/borgbackup.nix
+  ];
+
+  services.mathebau-borgbackup.enable = true;
+
+  # System configuration here
+  networking.hostName = "bragi";
+  system.stateVersion = "23.11";
+}

nixos/machines/bragi/hardware-configuration.nix

@@ -0,0 +1,32 @@
+{lib, ...}: {
+  fileSystems."/" = {
+    device = "root";
+    fsType = "tmpfs";
+    options = ["size=2G" "mode=755"];
+  };
+  fileSystems."/persist" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "btrfs";
+    options = ["subvol=persist"];
+    neededForBoot = true;
+  };
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/boot";
+    fsType = "ext4";
+  };
+  fileSystems."/nix" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "btrfs";
+    options = ["subvol=nix"];
+  };
+  fileSystems."/var/lib/backups" = {
+    device = "/dev/disk/by-label/backups";
+    fsType = "btrfs";
+  };
+
+  swapDevices = [{device = "/dev/disk/by-label/swap";}];
+
+  boot.loader.grub.device = "/dev/disk/by-id/wwn-0x5000c5003891662c";
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

nixos/machines/bragi/network.nix

@@ -0,0 +1,15 @@
+# We sohuld put that config somewhere in roles and give it a parameter or something,
+# everyone gets the same nameserver and the same prefixLength and address vs defaultGateway alsways
+# depend on the same thing
+{
+  networking = {
+    interfaces.enp0s25.ipv4.addresses = [
+      {
+        address = "192.168.1.11";
+        prefixLength = 24;
+      }
+    ];
+    defaultGateway = "192.168.1.137";
+    nameservers = ["130.83.2.22" "130.83.56.60" "130.83.22.60" "130.82.22.63"];
+  };
+}

nixos/modules/borgbackup.nix

@@ -0,0 +1,144 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit
+    (lib)
+    mkIf
+    mkEnableOption
+    ;
+  cfg = config.services.mathebau-borgbackup;
+in {
+  imports = [];
+
+  options.services.mathebau-borgbackup = {
+    enable = mkEnableOption "mathebau borgbackup service";
+  };
+
+  config = mkIf cfg.enable {
+    services.borgbackup = {
+      # repos are made available at ssh://borg@hostname and served according to the presented ssh-key
+      repos = {
+        aphoom-zhah = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA8pI6uinXezAMH4vG2yEbu/yOYU5vXcsZN74tYgV+Wj Aphoom-Zhah Backup"
+          ];
+          path = "/var/lib/backups/aphoom-zhah";
+          # subrepos are allowed because each vm creates at least one repo below this filepath and yibb-tstll even more
+          allowSubRepos = true;
+        };
+        azathoth = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGBEwllQ77ktoirXX6dJ6ET8TfK4lzq0aaq+X4rrX2Vk Azathoth Backup"
+          ];
+          path = "/var/lib/backups/azathoth";
+          allowSubRepos = true;
+        };
+        cthulhu = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMSJl1MvabUADTdOCgufsBzn1tIIpxMq4iDcYZsaW1lV Cthulhu Backup"
+          ];
+          path = "/var/lib/backups/cthulhu";
+          allowSubRepos = true;
+        };
+        dagon = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJaTBennwqT9eB43gVD1nM1os3dMPZ8RWwIKPEjqMK5V Dagon Backup"
+          ];
+          path = "/var/lib/backups/dagon";
+          allowSubRepos = true;
+        };
+        eihort = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHLoDxtY4Tp6NKxLt9oHmWT6w4UpU6eA1TnPU2Ut83BN Eihort Backup"
+          ];
+          path = "/var/lib/backups/eihort";
+          allowSubRepos = true;
+        };
+        fsaccount = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIG+Y7fQTYdIWHehrKdk92CaJ0AisEux4OrS4nIyMstU4 FS Account Backup"
+          ];
+          path = "/var/lib/backups/fsaccount";
+          allowSubRepos = true;
+        };
+        hastur = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILeDvTyOUdIPARatX0PPhHgrV1gjERWLt2Twa8E2GETb Hastur Backupsystem"
+          ];
+          path = "/var/lib/backups/hastur";
+          allowSubRepos = true;
+        };
+        ithaqua = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPJmBf8cz3FTDdeuxWbp1MO2yPT5rvH8ZIGUzfogjpXi Ithaqua Backup"
+          ];
+          path = "/var/lib/backups/ithaqua";
+          allowSubRepos = true;
+        };
+        sanctamariamaterdei = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH9Le5OI4ympQ0mQKYHmxgxGF598rzpD5VVpWK1mGfd8 Sanctamariamaterdei Backupsystem"
+          ];
+          path = "/var/lib/backups/sanctamariamaterdei";
+          allowSubRepos = true;
+        };
+        tsathoggua = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKS9/1lFOhv+3sNuGcysM3TYh2xRrjMeAZX3K7CBx0QW Tsathoggua Backup"
+          ];
+          path = "/var/lib/backups/tsathoggua";
+          allowSubRepos = true;
+        };
+        uvhash = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIB8DjIqgFgmYhQnTLpbqL0r7xBPb8TPy6SO5RhQ31OGj Uvhash Backup"
+          ];
+          path = "/var/lib/backups/uvhash";
+          allowSubRepos = true;
+        };
+        yibb-tstll = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINlnGOV58Ks9lu+WTI4F7QAHtDrJq2jY8ZocITZG8K0+ Yibb-Tstll Backup"
+          ];
+          path = "/var/lib/backups/yibb-tstll";
+          allowSubRepos = true;
+        };
+      };
+      # Configure backup of files on the department's fs account
+      jobs.fsaccount = {
+        preHook = ''
+          rm -rf /home/fsaccount/sicherung
+          mkdir /home/fsaccount/sicherung
+          scp -i /home/fsaccount/.ssh/fsaccount -r fachschaft@gw1.mathematik.tu-darmstadt.de:/home/fachschaft/* /home/fsaccount/sicherung/
+        '';
+        paths = "/home/fsaccount/sicherung";
+        encryption.mode = "none";
+        environment.BORG_RSH = "ssh -i /home/fsaccount/.ssh/fsaccount";
+        repo = "ssh://borg@localhost:fsaccount";
+        startAt = "hourly";
+        user = "fsaccount";
+        group = "users";
+        readWritePaths = ["/home/fsaccount"];
+      };
+    };
+    environment.persistence.${config.impermanence.name} = {
+      directories = [
+        {
+          directory = "/home/fsaccount"; # SSH Key with access to FS Account and Borg repo and known_hosts
+          user = "fsaccount";
+          group = "users";
+          mode = "u=rwx,g=,o=";
+        }
+      ];
+    };
+    # Extra user for FS account backup
+    users.users = {
+      fsaccount = {
+        description = "FS Account backup";
+        isNormalUser = true;
+      };
+    };
+  };
+}