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Restructure flake.nix for a simpler config for building different images off the same NixOS config.

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This commit is contained in:
Tom Alexander
2025-10-11 00:08:02 -04:00
parent 69b5cf9217
commit 3bf84445a3
121 changed files with 2937 additions and 3074 deletions
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86
nix/configuration/hosts/hydra/default.nix
View File

@@ -14,12 +14,6 @@
# -display vnc=127.0.0.1:0
#
{
config,
lib,
pkgs,
...
}:
{
imports = [
./disk-config.nix
@@ -27,41 +21,57 @@
./vm_disk.nix
];
# Generate with `head -c4 /dev/urandom | od -A none -t x4`
networking.hostId = "fbd233d8";
config = {
# Generate with `head -c4 /dev/urandom | od -A none -t x4`
networking.hostId = "fbd233d8";
networking.hostName = "hydra"; # Define your hostname.
networking.hostName = "hydra"; # Define your hostname.
time.timeZone = "America/New_York";
i18n.defaultLocale = "en_US.UTF-8";
time.timeZone = "America/New_York";
i18n.defaultLocale = "en_US.UTF-8";
me.secureBoot.enable = false;
me.boot.secure = false;
me.mountPersistence = true;
me.optimizations = {
enable = true;
arch = "znver4";
system_features = [
"gccarch-znver4"
"gccarch-skylake"
# "gccarch-alderlake" missing WAITPKG
"gccarch-x86-64-v3"
"gccarch-x86-64-v4"
"benchmark"
"big-parallel"
"kvm"
"nixos-test"
];
me.optimizations = {
enable = true;
arch = "znver4";
system_features = [
"gccarch-znver4"
"gccarch-skylake"
# "gccarch-alderlake" missing WAITPKG
"gccarch-x86-64-v3"
"gccarch-x86-64-v4"
"benchmark"
"big-parallel"
"kvm"
"nixos-test"
];
};
# Mount tmpfs at /tmp
boot.tmp.useTmpfs = true;
me.base.enable = true;
me.boot.enable = true;
me.doas.enable = true;
me.emacs_flavor = "plainmacs";
me.firewall.enable = true;
me.font.enable = true;
me.git.enable = true;
me.graphical = false;
me.hydra.enable = false;
me.memtest.enable = true;
me.network.enable = true;
me.nix_worker.enable = true;
me.nvme.enable = true;
me.ssh.enable = true;
me.sshd.enable = true;
me.user.enable = true;
me.vm_disk.enable = true;
me.wireguard.activated = [ ];
me.wireguard.deactivated = [ ];
me.zfs.enable = true;
me.zsh.enable = true;
};
# Mount tmpfs at /tmp
boot.tmp.useTmpfs = true;
me.emacs_flavor = "plainmacs";
me.graphical = false;
me.hydra.enable = false;
me.nix_worker.enable = true;
me.vm_disk.enable = true;
me.wireguard.activated = [ ];
me.wireguard.deactivated = [ ];
me.zsh.enable = true;
}

1
nix/configuration/hosts/hydra/disk-config.nix
View File

@@ -4,7 +4,6 @@
{
config,
lib,
pkgs,
...
}:

47
nix/configuration/hosts/hydra/hardware-configuration.nix
View File

@@ -1,10 +1,5 @@
# 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,
...
}:
@@ -14,26 +9,28 @@
(modulesPath + "/installer/scan/not-detected.nix")
];
boot.initrd.availableKernelModules = [
"xhci_pci"
"nvme"
"usbhid"
"usb_storage"
"sd_mod"
"sdhci_pci"
];
boot.initrd.kernelModules = [ ];
boot.kernelModules = [ ];
boot.extraModulePackages = [ ];
config = {
boot.initrd.availableKernelModules = [
"xhci_pci"
"nvme"
"usbhid"
"usb_storage"
"sd_mod"
"sdhci_pci"
];
boot.initrd.kernelModules = [ ];
boot.kernelModules = [ ];
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.dhcpcd.enable = lib.mkForce true;
networking.useDHCP = lib.mkForce true;
networking.interfaces.enp0s2.useDHCP = lib.mkForce true;
# systemd.network.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.dhcpcd.enable = lib.mkForce true;
networking.useDHCP = lib.mkForce true;
networking.interfaces.enp0s2.useDHCP = lib.mkForce true;
# systemd.network.enable = true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
};
}

105
nix/configuration/hosts/hydra/vm_disk.nix
View File

@@ -1,7 +1,6 @@
{
config,
lib,
pkgs,
...
}:
@@ -17,61 +16,57 @@
};
};
config = lib.mkIf config.me.vm_disk.enable (
lib.mkMerge [
{
# Mount the local disk
fileSystems = {
"/.disk" = lib.mkForce {
device = "/dev/nvme0n1p1";
fsType = "ext4";
options = [
"noatime"
"discard"
];
neededForBoot = true;
};
config = lib.mkIf config.me.vm_disk.enable {
# Mount the local disk
fileSystems = {
"/.disk" = lib.mkForce {
device = "/dev/nvme0n1p1";
fsType = "ext4";
options = [
"noatime"
"discard"
];
neededForBoot = true;
};
"/persist" = {
fsType = "none";
device = "/.disk/persist";
options = [
"bind"
"rw"
];
depends = [
"/.disk/persist"
];
};
"/persist" = {
fsType = "none";
device = "/.disk/persist";
options = [
"bind"
"rw"
];
depends = [
"/.disk/persist"
];
};
"/state" = {
fsType = "none";
device = "/.disk/state";
options = [
"bind"
"rw"
];
depends = [
"/.disk/state"
];
};
"/state" = {
fsType = "none";
device = "/.disk/state";
options = [
"bind"
"rw"
];
depends = [
"/.disk/state"
];
};
"/nix/store" = lib.mkForce {
fsType = "overlay";
device = "overlay";
options = [
"lowerdir=/nix/.ro-store"
"upperdir=/.disk/persist/store"
"workdir=/.disk/state/work"
];
depends = [
"/nix/.ro-store"
"/.disk/persist/store"
"/.disk/state/work"
];
};
};
}
]
);
"/nix/store" = lib.mkForce {
fsType = "overlay";
device = "overlay";
options = [
"lowerdir=/nix/.ro-store"
"upperdir=/.disk/persist/store"
"workdir=/.disk/state/work"
];
depends = [
"/nix/.ro-store"
"/.disk/persist/store"
"/.disk/state/work"
];
};
};
};
}