From 7b4c51bffd70831857980774b96f8720c337eba1 Mon Sep 17 00:00:00 2001 From: Gonne Date: Mon, 18 Dec 2023 17:55:00 +0100 Subject: [PATCH] Create backuphost Bragi --- nixos/machines/bragi/configuration.nix | 15 +++ .../machines/bragi/hardware-configuration.nix | 32 ++++++ nixos/machines/bragi/network.nix | 15 +++ nixos/modules/borgbackup.nix | 104 ++++++++++++++++++ 4 files changed, 166 insertions(+) create mode 100644 nixos/machines/bragi/configuration.nix create mode 100644 nixos/machines/bragi/hardware-configuration.nix create mode 100644 nixos/machines/bragi/network.nix create mode 100644 nixos/modules/borgbackup.nix diff --git a/nixos/machines/bragi/configuration.nix b/nixos/machines/bragi/configuration.nix new file mode 100644 index 0000000..f74fbb9 --- /dev/null +++ b/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"; +} diff --git a/nixos/machines/bragi/hardware-configuration.nix b/nixos/machines/bragi/hardware-configuration.nix new file mode 100644 index 0000000..4bd7168 --- /dev/null +++ b/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"; +} diff --git a/nixos/machines/bragi/network.nix b/nixos/machines/bragi/network.nix new file mode 100644 index 0000000..b113b50 --- /dev/null +++ b/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"]; + }; +} diff --git a/nixos/modules/borgbackup.nix b/nixos/modules/borgbackup.nix new file mode 100644 index 0000000..d019756 --- /dev/null +++ b/nixos/modules/borgbackup.nix @@ -0,0 +1,104 @@ +{ + 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; + }; + 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; + }; + }; + }; + }; +}