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Set up hydra as a remote build machine.

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This commit is contained in:
Tom Alexander
2026-01-11 16:38:56 -05:00
committed by Tom Alexander
parent 24e03ed8f7
commit 776ed67675
11 changed files with 268 additions and 49 deletions
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68
nix/configuration/hosts/hydra/default.nix
View File

@@ -18,10 +18,43 @@
];
config = {
# Generate with `head -c4 /dev/urandom | od -A none -t x4`
networking.hostId = "6fbf418b";
networking =
let
interface = "enp0s2";
in
{
# Generate with `head -c4 /dev/urandom | od -A none -t x4`
hostId = "6fbf418b";
networking.hostName = "hydra"; # Define your hostname.
hostName = "hydra"; # Define your hostname.
interfaces = {
"${interface}" = {
ipv4.addresses = [
{
address = "10.215.1.219";
prefixLength = 24;
}
];
ipv6.addresses = [
{
address = "2620:11f:7001:7:ffff:ffff:0ad7:01db";
prefixLength = 64;
}
];
};
};
defaultGateway = "10.215.1.1";
defaultGateway6 = {
# address = "2620:11f:7001:7::1";
address = "2620:11f:7001:7:ffff:ffff:0ad7:0101";
inherit interface;
};
dhcpcd.enable = lib.mkForce false;
useDHCP = lib.mkForce false;
};
time.timeZone = "America/New_York";
i18n.defaultLocale = "en_US.UTF-8";
@@ -63,13 +96,42 @@
environment.systemPackages = with pkgs; [
htop
git # for building on hydra
tmux # for building on hydra
nix-output-monitor # for building on hydra
];
# nix.sshServe.enable = true;
# nix.sshServe.keys = [ "ssh-dss AAAAB3NzaC1k... bob@example.org" ];
# Override garbage collection to keep things longer
# Automatic garbage collection
nix.gc = lib.mkForce {
automatic = true;
persistent = true;
dates = "weekly";
# randomizedDelaySec = "14m";
options = "--delete-older-than 60d";
};
# The default limit of files is 1024 which is too low for some nix builds.
#
# Check with `ulimit -n`
security.pam.loginLimits = [
{
domain = "*";
item = "nofile";
type = "-";
value = "8192";
}
];
# systemd.user.extraConfig = "DefaultLimitNOFILE=8192";
# systemd.services."user@11400".serviceConfig.LimitNOFILE = "8192";
me.build_in_ram.enable = true;
me.dont_use_substituters.enable = true;
me.hydra.enable = true;
me.minimal_base.enable = true;
me.nix_worker.enable = true;
};

44
nix/configuration/hosts/hydra/vm_disk.nix
View File

@@ -26,7 +26,7 @@
neededForBoot = true;
};
# "/.disk" = lib.mkForce {
# "/.persist" = lib.mkForce {
# device = "bind9p";
# fsType = "9p";
# options = [
@@ -35,6 +35,10 @@
# "version=9p2000.L"
# "cache=mmap"
# "msize=512000"
# "uname=root"
# "dfltuid=0"
# "dfltgid=0"
# "nodevmap"
# # "noauto"
# # "x-systemd.automount"
# ];
@@ -67,25 +71,25 @@
neededForBoot = true;
};
"/nix/store" = lib.mkForce {
overlay = {
lowerdir = [ "/nix/.ro-store" ];
upperdir = "/.disk/persist/store";
workdir = "/.disk/state/work";
};
# 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 {
# overlay = {
# lowerdir = [ "/nix/.ro-store" ];
# upperdir = "/.disk/persist/store";
# workdir = "/.disk/state/work";
# };
# # 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"
# ];
# };
};
};
}