nixpkgs/nixos/modules/virtualisation/amazon-grow-partition.nix
Domen Kožar e2e56a902f fix eval
2016-03-30 16:43:36 +01:00

25 lines
735 B
Nix

# This module automatically grows the root partition on Amazon EC2 HVM
# instances. This allows an instance to be created with a bigger root
# filesystem than provided by the AMI.
{ config, lib, pkgs, ... }:
{
config = lib.mkIf config.ec2.hvm {
boot.initrd.extraUtilsCommands = ''
copy_bin_and_libs ${pkgs.gawk}/bin/gawk
copy_bin_and_libs ${pkgs.gnused}/bin/sed
copy_bin_and_libs ${pkgs.utillinux}/sbin/sfdisk
cp -v ${pkgs.cloud-utils}/bin/growpart $out/bin/growpart
ln -s sed $out/bin/gnused
'';
boot.initrd.postDeviceCommands = ''
if [ -e /dev/xvda ] && [ -e /dev/xvda1 ]; then
TMPDIR=/run sh $(type -P growpart) /dev/xvda 1
udevadm settle
fi
'';
};
}