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|
{ lib, ... }:
with lib;
{
imports = [
../profiles/qemu-guest.nix
../profiles/headless.nix
];
config = {
fileSystems."/" = {
device = "/dev/disk/by-label/nixos";
autoResize = true;
};
boot.growPartition = true;
boot.kernelParams = [ "console=ttyS0" ];
boot.loader.grub.device = "/dev/vda";
boot.loader.timeout = 0;
# Allow root logins
services.openssh = {
enable = true;
permitRootLogin = "prohibit-password";
passwordAuthentication = mkDefault false;
};
services.cloud-init.enable = true;
# Put /tmp and /var on /ephemeral0, which has a lot more space.
# Unfortunately we can't do this with the `fileSystems' option
# because it has no support for creating the source of a bind
# mount. Also, "move" /nix to /ephemeral0 by layering a unionfs-fuse
# mount on top of it so we have a lot more space for Nix operations.
/*
boot.initrd.postMountCommands =
''
mkdir -m 1777 -p $targetRoot/ephemeral0/tmp
mkdir -m 1777 -p $targetRoot/tmp
mount --bind $targetRoot/ephemeral0/tmp $targetRoot/tmp
mkdir -m 755 -p $targetRoot/ephemeral0/var
mkdir -m 755 -p $targetRoot/var
mount --bind $targetRoot/ephemeral0/var $targetRoot/var
mkdir -p /unionfs-chroot/ro-nix
mount --rbind $targetRoot/nix /unionfs-chroot/ro-nix
mkdir -p /unionfs-chroot/rw-nix
mkdir -m 755 -p $targetRoot/ephemeral0/nix
mount --rbind $targetRoot/ephemeral0/nix /unionfs-chroot/rw-nix
unionfs -o allow_other,cow,nonempty,chroot=/unionfs-chroot,max_files=32768 /rw-nix=RW:/ro-nix=RO $targetRoot/nix
'';
boot.initrd.supportedFilesystems = [ "unionfs-fuse" ];
*/
};
}
|