feat: NixOS | use LUKS and proper hostname for k3s domain

feat: NixOS | move cluster config to /master

fix: update all stuff for office network

feat: PiHole | set up DHCP server

chore: Cloudflare | delete api token secret

chore: remove external-dns annotations from ingressed services

fix: PiHole | turn off liveness checks due to host ip

fix: GiteaActions | use encrypted storage for runner

fix: ElasticSearch | use encrypted volumes for storage

fix: Pihole | static mac addresses all caps

feat: NixOS | manual network configuration

fix: NixOS | k3s cluster init point to static ip with tls-san

chore: Postgres | move certificate resources into own file + reduce volume size

fix: Pihole | add ingress class name

sec: NixOS | remove token from git
This commit is contained in:
2024-10-19 13:15:36 +05:00
parent 38e5e53fd9
commit 0d4f700b89
19 changed files with 280 additions and 191 deletions

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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, lib, pkgs, meta, ... }:
{
imports =
[ # Include the results of the hardware scan.
];
nix = {
package = pkgs.nixFlakes;
extraOptions = ''
experimental-features = nix-command flakes
'';
};
# Use the systemd-boot EFI boot loader.
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
networking.hostName = meta.hostname; # Define your hostname.
# Pick only one of the below networking options.
networking.networkmanager.enable = true;
networking.interfaces.enp1s0.ipv4.addresses = [
{
address = (
if meta.hostname == "homelab-0" then "192.168.18.10"
else if meta.hostname == "homelab-1" then "192.168.18.11"
else if meta.hostname == "homelab-2" then "192.168.18.12"
else throw "Unknown hostname"
);
prefixLength = 24;
}
];
networking.defaultGateway = "192.168.18.1";
networking.nameservers = [
"192.168.18.250"
"1.1.1.1"
];
# Set your time zone.
time.timeZone = "Asia/Karachi";
# 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.
};
# Fixes for longhorn
systemd.tmpfiles.rules = [
"L+ /usr/local/bin - - - - /run/current-system/sw/bin/"
];
virtualisation.docker.logDriver = "json-file";
# Enable the X11 windowing system.
# services.xserver.enable = true;
# Configure keymap in X11
# services.xserver.xkb.layout = "us";
# services.xserver.xkb.options = "eurosign:e,caps:escape";
services.k3s = {
enable = true;
role = "server";
tokenFile = /var/lib/rancher/k3s/server/token;
extraFlags = toString ([
"--write-kubeconfig-mode \"0644\""
"--cluster-init"
"--disable servicelb"
"--disable traefik"
"--disable local-storage"
"--tls-san homelab-0"
] ++ (if meta.hostname == "homelab-0" then [] else [
"--server https://192.168.18.10:6443"
]));
clusterInit = (meta.hostname == "homelab-0");
};
services.openiscsi = {
enable = true;
name = "iqn.2016-04.com.open-iscsi:${meta.hostname}";
};
# Enable CUPS to print documents.
# services.printing.enable = true;
# Enable sound.
# sound.enable = true;
# hardware.pulseaudio.enable = true;
# Enable touchpad support (enabled default in most desktopManager).
# services.xserver.libinput.enable = true;
# Define a user account. Don't forget to set a password with passwd.
users.users.shahab = {
isNormalUser = true;
extraGroups = [ "wheel" ]; # Enable sudo for the user.
packages = with pkgs; [
tree
cloudflared
];
# Created using mkpasswd
hashedPassword = "$6$.ZlYnf2cZph4tCbM$E/JJUDirRV8MZrgX4Rh.Pi1q95tev1ZxcKjPA1I.uURv56qoWcC39MJWO9S2T5MlkPVbSLGiM8Ihfz9mERImo/";
openssh.authorizedKeys.keys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGD/V4jLpuk7uAovkbHFr6uulfBKZmsH+BqmXIR2aYD0"
];
};
# List packages installed in system profile. To search, run:
# $ nix search wget
environment.systemPackages = with pkgs; [
neovim
k3s
cifs-utils
nfs-utils
git
];
# 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 = [ 80 ];
# 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.
#
# 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 = "24.05"; # Did you read the comment?
}

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{
disko.devices = {
disk = {
vdb = {
type = "disk";
device = "/dev/nvme0n1";
content = {
type = "gpt";
partitions = {
ESP = {
priority = 1;
name = "ESP";
start = "1M";
end = "128M";
type = "EF00";
content = {
type = "filesystem";
format = "vfat";
mountpoint = "/boot";
};
};
luks = {
size = "100%";
content = {
name = "crypted";
type = "luks";
askPassword = true;
content = {
type = "filesystem";
format = "ext4";
mountpoint = "/";
};
};
};
};
};
};
};
};
}

48
nixos/master/flake.lock generated Normal file
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{
"nodes": {
"disko": {
"inputs": {
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1724031427,
"narHash": "sha256-o1HdAf+7IGv9M13R3c+zc/sJ0QgeEnhsvHBcodI4UpM=",
"owner": "nix-community",
"repo": "disko",
"rev": "4e719b38fa7c85f4f65d0308ca7084c91e7bdd6d",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "disko",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1723938990,
"narHash": "sha256-9tUadhnZQbWIiYVXH8ncfGXGvkNq3Hag4RCBEMUk7MI=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "c42fcfbdfeae23e68fc520f9182dde9f38ad1890",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixos-24.05",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"disko": "disko",
"nixpkgs": "nixpkgs"
}
}
},
"root": "root",
"version": 7
}

35
nixos/master/flake.nix Normal file
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{
description = "Homelab NixOS Flake";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
# Disko
disko.url = "github:nix-community/disko";
disko.inputs.nixpkgs.follows = "nixpkgs";
};
outputs = { self, nixpkgs, disko, ... }@inputs: let
nodes = [
"homelab-0"
"homelab-1"
"homelab-2"
];
in {
nixosConfigurations = builtins.listToAttrs (map (name: {
name = name;
value = nixpkgs.lib.nixosSystem {
specialArgs = {
meta = { hostname = name; };
};
system = "x86_64-linux";
modules = [
# Modules
disko.nixosModules.disko
./hardware-configuration.nix
./disko-config.nix
./configuration.nix
];
};
}) nodes);
};
}

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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, pkgs, modulesPath, ... }:
{
imports = [(modulesPath + "/installer/scan/not-detected.nix")];
boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "usbhid" "usb_storage" "sd_mod" ];
boot.initrd.kernelModules = [ ];
boot.kernelModules = [ "kvm-amd" ];
boot.extraModulePackages = [ ];
# 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 false;
networking.interfaces.enp1s0.useDHCP = lib.mkDefault false;
# networking.interfaces.wlo1.useDHCP = lib.mkDefault true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}