75 lines
2.1 KiB
Nix
75 lines
2.1 KiB
Nix
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{ config
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, lib
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, router-config
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, ... }:
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let
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encUuid = "15945050-df48-418b-b736-827749b9262a";
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encPart = "/dev/disk/by-uuid/${encUuid}";
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rootUuid = "de454394-8cc1-4267-b62b-1e25062f7cf4";
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rootPart = "/dev/disk/by-uuid/${rootUuid}";
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bootUuid = "0603-5955";
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bootPart = "/dev/disk/by-uuid/${bootUuid}";
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in
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{
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imports = [
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../hardware/radxa-rock5a
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../hosts/nixserver
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];
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networking.useDHCP = true;
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boot.initrd = {
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preLVMCommands = lib.mkOrder 499 ''
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ip link set eth0 address ${router-config.router-settings.serverInitrdMac} || true
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'';
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postMountCommands = ''
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ip link set eth0 address ${router-config.router-settings.serverMac} || true
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'';
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network.enable = true;
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network.udhcpc.extraArgs = [ "-t6" ];
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network.ssh = {
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enable = true;
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port = 22;
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authorizedKeys = config.users.users.root.openssh.authorizedKeys.keys;
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hostKeys = [
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"/secrets/initrd/ssh_host_rsa_key"
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"/secrets/initrd/ssh_host_ed25519_key"
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];
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# shell = "/bin/cryptsetup-askpass";
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};
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luks.devices."cryptroot" = {
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device = encPart;
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# idk whether this is needed but it works
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preLVM = true;
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# see https://asalor.blogspot.de/2011/08/trim-dm-crypt-problems.html before enabling
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allowDiscards = true;
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# improve SSD performance
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bypassWorkqueues = true;
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};
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};
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fileSystems = {
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"/" = { device = "none"; fsType = "tmpfs"; neededForBoot = true;
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options = [ "defaults" "size=2G" "mode=755" ]; };
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# TODO: switch to bcachefs?
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# I wanna do it some day, but maybe starting with the next disk I get for this server
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"/persist" =
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{ device = rootPart; fsType = "btrfs"; neededForBoot = true;
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options = [ "subvol=@" "compress=zstd" ]; };
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"/boot" =
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{ device = bootPart; fsType = "vfat"; neededForBoot = true; };
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};
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impermanence = {
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enable = true;
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path = /persist;
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directories = [
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{ directory = /home/${config.common.mainUsername}; user = config.common.mainUsername; group = "users"; mode = "0700"; }
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{ directory = /root; mode = "0700"; }
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{ directory = /nix; }
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];
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};
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}
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