feat: split flake into multiple hosts and add homelab config

This commit is contained in:
zenware 2025-06-06 22:28:42 -05:00
parent cd07c91676
commit ebe58addaa
19 changed files with 539 additions and 40 deletions

14
hosts/lithium/README.md Normal file
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# lithium
This is my primary homelab host/NAS, previously powered by TrueNAS Scale/k3s.
## Semi-Secrets
`semi-secret-vars.nix` is following a pattern I discovered here:
https://github.com/nyawox/arcanum/blob/4629dfba1bc6d4dd2f4cf45724df81289230b61a/var/README.md
Essentially there are some details I won't want exposed in the repository, but
I do want them available to all my nix modules. The main one being the domain.
While it's not really a secret in the way a password is, consider this effort a
mitigation against ddos attacks and automated requests and login attempts.

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# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page, on
# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
{ config, pkgs, ... }:
{
# Setup sops default secrets.
sops.defaultSopsFile = ./secrets/common.yaml;
# Use the systemd-boot EFI boot loader.
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
# TODO: Request 192.168.50.3 over DHCP
# Currently this is enforced at the router layer on a single interface.
# I'd dramatically prefer it to be a bond0 interface but w/e it is what it is.
networking.hostName = "lithium"; # Define your hostname.
networking.domain = config.vars.domain;
# Pick only one of the below networking options.
# networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
# networking.networkmanager.enable = true; # Easiest to use and most distros use this by default.
# Set your time zone.
time.timeZone = "America/Chicago";
# Configure network proxy if necessary
# networking.proxy.default = "http://user:password@proxy:port/";
# networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
# Select internationalisation properties.
# i18n.defaultLocale = "en_US.UTF-8";
# console = {
# font = "Lat2-Terminus16";
# keyMap = "us";
# useXkbConfig = true; # use xkb.options in tty.
# };
# Enable the X11 windowing system.
#services.xserver.enable = true;
# Enable the GNOME Desktop Environment.
#services.xserver.displayManager.gdm.enable = true;
#services.xserver.desktopManager.gnome.enable = true;
# Configure keymap in X11
# services.xserver.xkb.layout = "us";
# services.xserver.xkb.options = "eurosign:e,caps:escape";
# Enable CUPS to print documents.
# services.printing.enable = true;
# Enable sound.
# services.pulseaudio.enable = true;
# OR
# services.pipewire = {
# enable = true;
# pulse.enable = true;
# };
# Enable touchpad support (enabled default in most desktopManager).
# services.libinput.enable = true;
# Define a user account. Don't forget to set a password with passwd.
users.users.jay = {
isNormalUser = true;
extraGroups = [ "wheel" ]; # Enable sudo for the user.
packages = with pkgs; [
tree
];
};
nixpkgs.config.allowUnfree = true;
nix.settings = {
experimental-features = [ "nix-command" "flakes" ];
};
# List packages installed in system profile.
# You can use https://search.nixos.org/ to find more packages (and options).
environment.systemPackages = with pkgs; [
vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
git
zfs
# wget
];
# Some programs need SUID wrappers, can be configured further or are
# started in user sessions.
# programs.mtr.enable = true;
# programs.gnupg.agent = {
# enable = true;
# enableSSHSupport = true;
# };
# List services that you want to enable:
# Enable the OpenSSH daemon.
services.openssh.enable = true;
# Open ports in the firewall.
# networking.firewall.allowedTCPPorts = [ ... ];
# networking.firewall.allowedUDPPorts = [ ... ];
# Or disable the firewall altogether.
# networking.firewall.enable = false;
# Copy the NixOS configuration file and link it from the resulting system
# (/run/current-system/configuration.nix). This is useful in case you
# accidentally delete configuration.nix.
# system.copySystemConfiguration = true;
# This option defines the first version of NixOS you have installed on this particular machine,
# and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
#
# Most users should NEVER change this value after the initial install, for any reason,
# even if you've upgraded your system to a new NixOS release.
#
# This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
# so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
# to actually do that.
#
# This value being lower than the current NixOS release does NOT mean your system is
# out of date, out of support, or vulnerable.
#
# Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
# and migrated your data accordingly.
#
# For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
system.stateVersion = "25.05"; # Did you read the comment?
}

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hosts/lithium/default.nix Normal file
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{ ... }:
{
imports = [
./hardware.nix
./configuration.nix
./semi-secret-vars.nix
./services/caddy.nix
./services/kanidm.nix
./services/jellyfin.nix
./services/uptime-kuma.nix
];
}

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# Do not modify this file! It was generated by nixos-generate-config
# and may be overwritten by future invocations. Please make changes
# to /etc/nixos/configuration.nix instead.
{ config, lib, modulesPath, ... }:
{
imports =
[ (modulesPath + "/installer/scan/not-detected.nix")
];
boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "mpt3sas" "nvme" "usbhid" "usb_storage" "sd_mod" "sr_mod" ];
boot.initrd.kernelModules = [ ];
boot.kernelModules = [ "kvm-intel" ];
boot.extraModulePackages = [ ];
fileSystems."/" =
{ device = "/dev/disk/by-uuid/12861f9f-ca29-444d-9af1-330699a79a78";
fsType = "btrfs";
options = [ "subvol=root" ];
};
fileSystems."/boot" =
{ device = "/dev/disk/by-uuid/2B64-2D7E";
fsType = "vfat";
options = [ "fmask=0077" "dmask=0077" ];
};
fileSystems."/home" =
{ device = "/dev/disk/by-uuid/12861f9f-ca29-444d-9af1-330699a79a78";
fsType = "btrfs";
options = [ "subvol=home" ];
};
fileSystems."/nix" =
{ device = "/dev/disk/by-uuid/12861f9f-ca29-444d-9af1-330699a79a78";
fsType = "btrfs";
options = [ "subvol=nix" ];
};
swapDevices =
[ { device = "/dev/disk/by-uuid/df457998-5ffc-422b-a3c9-6e5734c88a41"; }
{ device = "/dev/disk/by-uuid/f970449e-2eee-450b-b19f-6361f4fb3c16"; }
];
# Required despite not booting from zfs, in order to make zfs.ko available to modprobe.
# https://openzfs.github.io/openzfs-docs/Getting%20Started/NixOS/index.html#installation
boot.supportedFilesystems = [ "zfs" ];
boot.zfs.forceImportRoot = false;
networking.hostId = "97fd89d8";
boot.zfs.extraPools = [ "tank" ];
services.zfs.autoScrub.enable = true;
# Enables DHCP on each ethernet and wireless interface. In case of scripted networking
# (the default) this is the recommended approach. When using systemd-networkd it's
# still possible to use this option, but it's recommended to use it in conjunction
# with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
networking.useDHCP = lib.mkDefault true;
# networking.interfaces.eno1.useDHCP = lib.mkDefault true;
# networking.interfaces.enp6s0.useDHCP = lib.mkDefault true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}

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CLOUDFLARE_API_TOKEN=ENC[AES256_GCM,data:fNkufR8Zzubh1+sJWfEFwfB/YckqeNdxbYKZCZ0qWGDOjanfzjUzKQ==,iv:6FEzPk4OUxqywIz3ChxCvs9RsBK7ypkrLiY2VFCwWzA=,tag:BBvcCXr0BRevU13SfDOLeg==,type:str]
sops_age__list_0__map_enc=-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBCSldSdUdMYk9uQzZuS0tr\nTStEZ3owSE5xdndRVjYrdUN5SVc3cmZiM1VJCjhBa1ExL3hBWEZOWjVxU1ZMcUJR\nUTJJN0lyU2xCNUFzeUdtdDZOaWFMVEEKLS0tIEI2emxCbUxVYVl4a20ySFhab0dC\nZUxkNXhpTXRhZ1pPU0sybnRPakhuOGsKJ3wUExxovoJSAOz+A6lNsCquGgTconmP\ng3XSNwxPhqtKUdVrw4CvDFH2AuU0RCKSbOzO2SNe72pyuEhtME/01g==\n-----END AGE ENCRYPTED FILE-----\n
sops_age__list_0__map_recipient=age1mv8xtvkuuw3hphq5ytaekz7p8a4kht79uajyhy534uy9e5472fhqj5zpxu
sops_age__list_1__map_enc=-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBNSFlMZmdsOUlldnF5dENn\nRVBkMThsMEg5dHQ5UFhhK0RtbVJuWU5ZMURrCjNFTWo4K0w5SUpGMVd2c3NQODhR\nQlMrc3BYY0Z6VldvNVdiQ2ZFZ3V6OGcKLS0tIC8vcWNuYXp3NmF3MmdNRVgvbUdu\nZGxwdU12M1lTa1VLMGx2bVRheVc3c1EKFGvr6wx2CyDyT3QxkpFnw8p10AQz+FwT\n+vCmueVLskc9UZavETzbif2LIWewuPtNjqGNGZwrWFMUZcy8kyVXUQ==\n-----END AGE ENCRYPTED FILE-----\n
sops_age__list_1__map_recipient=age148yre4vaxp6lm59rft24te46szawqyguf8znkrtpq7ud8tpteauqxkwyjl
sops_lastmodified=2025-06-07T02:03:12Z
sops_mac=ENC[AES256_GCM,data:Uw17J9ZYOhNENlfGnFUsjvVm/9IT+hrDDt8UvIIWSMhT54gXIejEDv1IWtNho6JlSN0Wrnl5hEeDFUkHFJ4Ae9EW1FwSpGH2dy6iZ6OUMQMI2hgE28J9wk8c5kSKirhXEPvmCaTBIypQnL0NcKHCuaovKnt1PRRwLrqANLoo9iw=,iv:87f5cCHjqPby2VRhLBJThgCvkGp6sajxYnS/Oyb3hdo=,tag:Gn6a20W1WHVr/Zyvyyk5TQ==,type:str]
sops_unencrypted_suffix=_unencrypted
sops_version=3.10.2

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kanidm:
admin-password: ENC[AES256_GCM,data:wNE9qWAjfp8tf29sn1Q6GYrbw8g=,iv:uzg971jGIVyEkEbcOm2W8dy4wVgWiL+4Ph/f/bnieI0=,tag:/yY1okvnJLYGw2OLBd2Zdg==,type:str]
idm-admin-password: ENC[AES256_GCM,data:jIWaXUgHjhp0bP/DrF1m+plzcvE=,iv:nNpIkg9FTbCncih1/pAk4o7teuk7Gf/nPXyrnpFx4no=,tag:WhhsjtEdyS3Zw4F7uF9APg==,type:str]
sops:
age:
- recipient: age1mv8xtvkuuw3hphq5ytaekz7p8a4kht79uajyhy534uy9e5472fhqj5zpxu
enc: |
-----BEGIN AGE ENCRYPTED FILE-----
YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB5cFlReGMxV1R3QW1Vd1RU
WTgzNm5tbGhld3RMTGpMU1M2eVdoU0hmZGtNCmZLSTNOMk9IMDh6K2svRmRveGw3
dlFUZ2lzTDBJWnBSTEhVTmVDOHVTdW8KLS0tIDhLWVZWSVJYM2x4YTlZWWZZZVNh
T2drb0p6TjZrZldpU0VUd0xmcVJUSk0KMjX3vr/74/HU7fmulefUHiNzwX8LcAes
ob3fabhMk9lmbuQk21rpoWbz3PNTfCQH63q+h7gLJTCCW2ISTvh/KQ==
-----END AGE ENCRYPTED FILE-----
- recipient: age148yre4vaxp6lm59rft24te46szawqyguf8znkrtpq7ud8tpteauqxkwyjl
enc: |
-----BEGIN AGE ENCRYPTED FILE-----
YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBpK3VvNUhHNmJUQVZlREJl
c1oyZWx4ekNEM0VqL3NKanNmSmZtQXNpcWdVCmpWcklLVnhWUisvcGZzV1NHN3p4
bW4wL09wL01XaHpveGdmbU4rbEp5NmsKLS0tIElhQVRmS05xUmJIZlI0S1dyWGhV
OGtKdHVwbWY2akJTQkF4YzlnNWQzNU0K81PyJ1tOvwOohNu9iUkS8vE7UXFRnJab
8OLHtzX7FrkIH8rO2D5vEL9gPmxUtNKc9Ad3sndQls/yfg4wJAYedA==
-----END AGE ENCRYPTED FILE-----
lastmodified: "2025-06-07T02:02:46Z"
mac: ENC[AES256_GCM,data:7mWOon8Hs2oU40l1dx4tVE8yXgcKoxfUAzY8zbtTzXqCOhzTzhY4OZAZiu4RiUSIOm7dMdQbH9zSx0j+5e2k9QflfJDDM3rWfunTa7L8Bm8k9b/WjS0Fnb7OV0InO6tLxQwkTamMcc7ORrKxwHB5PwuXD+efeWNXveHo5GYgF+M=,iv:seh2Pzt+AmmxyD5hwh3VkLQTDMq0Gh9mV6J3QrtxcmM=,tag:jpXn2fht8wArB2KD/ZmbyA==,type:str]
unencrypted_suffix: _unencrypted
version: 3.10.2

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age-encryption.org/v1
-> ssh-ed25519 rhvgyQ 8V5ehsrqPR8s2joIfdpZRYDQpwH5BXI1GgQ/Qcb/Wg4
ZKRZkXT0uPbXzuXLsteW31GsKzZy1deUl1GdWeQB+4U
-> "f<f<DW--grease AQ] z5_)RUB7 2>&DjVar
Lhe9DbPHOqqKQ9HDhJB2xbIkrsxFGm39Yzr1J+ZbJnWYx5FCdGCCIexmv3GJy94t
--- qKkjS2aEWavCLldEwi4MUTlDoQuIu9tSRr5yoeZVQhs
b¾Z~lŠU"Uãp­µ¥ vÉñ¿³$?ƒ<EFBFBD>æ;:ZÖuÒ^öËÅŠQ/MBÉf]Ξ)4PYáî-ßäê«Ü» <EFBFBD>áØŸl¨Á¯&eâû2©ÈOUqXóMD<EFBFBD>SÜä7ÁE¿ðÀÉæ&us¿ð<EFBFBD>ÁU÷#Êdø#ØÿÀÂWõ9Øãó^k.ÜÝ0áü7«ðhŸ°©s4CRIwUÅ aʯMÀwi·U<EFBFBD>riÿkªb}yVÒÈÜüÏ>©¿rް[ƒÝ8s

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{ config, pkgs, ... }:
{
sops.secrets.caddy_env = {
sopsFile = ../secrets/caddy.env;
format = "dotenv";
mode = "0440";
owner = config.services.caddy.user;
group = config.services.caddy.group;
restartUnits = [ "caddy.service" ];
};
services.caddy = {
enable = true;
package = pkgs.caddy.withPlugins {
# NOTE: Occasionally specify @latest and update the new versions, and the result hash.
plugins = [
"github.com/mholt/caddy-dynamicdns@v0.0.0-20250430031602-b846b9e8fb83"
"github.com/caddy-dns/cloudflare@v0.2.1"
];
# NOTE: Built on 6/4/2025
hash = "sha256-swskhAr7yFJX+qy0FR54nqJarTOojwhV2Mbk7+fyS0I=";
};
# NOTE: Use Staging CA while testing, check `systemctl status caddy`
# to see if everything is working.
# acmeCA = "https://acme-staging-v02.api.letsencrypt.org/directory";
# TODO: Add Metrics with Prometheus & Grafana
environmentFile = config.sops.secrets.caddy_env.path;
globalConfig = ''
# acme_dns cloudflare {env.CLOUDFLARE_API_TOKEN}
dynamic_dns {
provider cloudflare {env.CLOUDFLARE_API_TOKEN}
domains {
${config.networking.domain} @
}
dynamic_domains
}
'';
};
networking.firewall.allowedTCPPorts = [ 80 443 ];
}

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{ config, pkgs, ... }:
let
svcDomain = "tv.${config.networking.domain}";
in
{
services.caddy.virtualHosts."${svcDomain}".extraConfig = ''
reverse_proxy :8096
'';
services.jellyfin = {
enable = true;
# NOTE: Keeping this open for now, for internal network use.
# ports 8096 for http and 8920 for https
openFirewall = true;
};
environment.systemPackages = [
pkgs.jellyfin
pkgs.jellyfin-web
pkgs.jellyfin-ffmpeg
];
}

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{ config, pkgs, lib, ... }:
let
svcDomain = "id.${config.networking.domain}";
caddyCertsRoot = "${config.services.caddy.dataDir}/.local/share/caddy/certificates";
caddyCertsDir = "${caddyCertsRoot}/acme-v02.api.letsencrypt.org-directory";
certsDir = "/var/lib/kanidm/certs";
in
{
# Example of yoinking certs from caddy:
# https://github.com/marcusramberg/nix-config/blob/e558914dd3705150511c5ef76278fc50bb4604f3/nixos/kanidm.nix#L3
# TODO: If possible, consider specifying the cert location here instead of the following kludge.
services.caddy.virtualHosts."${svcDomain}".extraConfig = ''
reverse_proxy :8443 {
transport http {
tls_server_name ${svcDomain}
}
}
'';
# NOTE: Attempted kludge due to caddy generating (and therefore owning the certs)
systemd.tmpfiles.rules = [
"d ${certsDir} 0750 kanidm caddy -"
"C ${certsDir}/cert.pem - kanidm - - ${caddyCertsDir}/${svcDomain}/${svcDomain}.crt"
"C ${certsDir}/key.key - kanidm - - ${caddyCertsDir}/${svcDomain}/${svcDomain}.key"
];
systemd.services.kanidm = {
after = [ "systemd-tmpfiles-setup.service" ];
requires = [ "caddy.service" "systemd-tmpfiles-setup.service" ];
};
users.users.kanidm.extraGroups = [
"caddy"
];
sops.secrets = {
"kanidm/admin-password" = {
group = "kanidm";
mode = "440";
};
"kanidm/idm-admin-password" = {
group = "kanidm";
mode = "440";
};
};
services.kanidm = {
package = pkgs.kanidmWithSecretProvisioning;
enableServer = true;
serverSettings = {
# NOTE: Required to start the server: https://kanidm.github.io/kanidm/stable/server_configuration.html
# domain, origin, tls_chain, tls_key
domain = svcDomain;
origin = "https://${svcDomain}";
tls_chain = "${certsDir}/cert.pem";
tls_key = "${certsDir}/key.key";
# NOTE: Optional Settings
ldapbindaddress = "127.0.0.1:3636"; # For Jellyfin LDAP integration.
# trust_x_forwarded_for = true;
};
enableClient = true;
clientSettings.uri = config.services.kanidm.serverSettings.origin;
# NOTE: POSIX accounts bound to LDAP assume 'anonymous' permissions.
# https://kanidm.github.io/kanidm/stable/integrations/pam_and_nsswitch.html
enablePam = true;
unixSettings = {
pam_allowed_login_groups = [
"unix.admins"
];
home_attr = "uuid";
home_alias = "name";
};
# NOTE: There are manual steps required as root to allow a user to set
# their own credentials, or to confiugre an account as posix. As-is this
# module doesn't support provisioning a complete user /w credentials.
# Adding an account to `idm_high_privilege` prevents an account from being
# tampered with by any other admin accounts.
# https://kanidm.github.io/kanidm/stable/accounts/authentication_and_credentials.html#onboarding-a-new-person--resetting-credentials
provision = {
enable = true;
autoRemove = false;
adminPasswordFile = config.sops.secrets."kanidm/admin-password".path;
idmAdminPasswordFile = config.sops.secrets."kanidm/idm-admin-password".path;
# NOTE: Basically all this can do is pair up a uuid with a collection of
# groups, and you still need to manually issue a reset token so that the
# user can create a Passekey and/or Password /w MFA.
persons = {
# https://kanidm.github.io/kanidm/stable/accounts/authentication_and_credentials.html#resetting-person-account-credentials
zenware = {
displayName = "zenware";
groups = [
"unix.admins"
"git.users"
"git.admins"
"tv.users"
];
};
};
groups = {
"unix.admins" = {};
"git.users" = {};
"git.admins" = {};
"tv.users" = {};
"tv.admins" = {};
};
};
};
# NOTE: Allow Kanidm auth over SSH
services.openssh.settings = {
UsePAM = true;
PubkeyAuthentication = true;
PasswordAuthentication = true;
AuthorizedKeysCommand = "${
lib.getExe' config.services.kanidm.package
"kanidm_ssh_authorizedkeys"
} %u";
AuthorizedKeysCommandUser = "nobody";
};
}

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{ config, pkgs, ... }:
let
svcDomain = "status.${config.networking.domain}";
svcPort = config.services.uptime-kuma.settings.PORT;
in
{
services.caddy.virtualHosts."${svcDomain}".extraConfig = ''
reverse_proxy :${svcPort}
'';
# NOTE: Currently requires some web-interface configuration
# User must set up an admin account, monitors, and status pages manually.
services.uptime-kuma = {
enable = true;
# NOTE: NixOS Attributes here resolve into these ENV vars:
# https://github.com/louislam/uptime-kuma/wiki/Environment-Variables
# settings = {};
};
}