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|
import ./make-test.nix ({ pkgs, ... }:
with pkgs.lib;
let
ksExt = pkgs.writeText "ks-ext4" ''
clearpart --all --initlabel --drives=vdb
part /boot --recommended --label=boot --fstype=ext2 --ondisk=vdb
part swap --recommended --label=swap --fstype=swap --ondisk=vdb
part /nix --size=500 --label=nix --fstype=ext3 --ondisk=vdb
part / --recommended --label=root --fstype=ext4 --ondisk=vdb
'';
ksBtrfs = pkgs.writeText "ks-btrfs" ''
clearpart --all --initlabel --drives=vdb,vdc
part swap1 --recommended --label=swap1 --fstype=swap --ondisk=vdb
part swap2 --recommended --label=swap2 --fstype=swap --ondisk=vdc
part btrfs.1 --grow --ondisk=vdb
part btrfs.2 --grow --ondisk=vdc
btrfs / --data=0 --metadata=1 --label=root btrfs.1 btrfs.2
'';
ksF2fs = pkgs.writeText "ks-f2fs" ''
clearpart --all --initlabel --drives=vdb
part swap --recommended --label=swap --fstype=swap --ondisk=vdb
part /boot --recommended --label=boot --fstype=f2fs --ondisk=vdb
part / --recommended --label=root --fstype=f2fs --ondisk=vdb
'';
ksRaid = pkgs.writeText "ks-raid" ''
clearpart --all --initlabel --drives=vdb,vdc
part raid.01 --size=200 --ondisk=vdb
part raid.02 --size=200 --ondisk=vdc
part swap1 --size=500 --label=swap1 --fstype=swap --ondisk=vdb
part swap2 --size=500 --label=swap2 --fstype=swap --ondisk=vdc
part raid.11 --grow --ondisk=vdb
part raid.12 --grow --ondisk=vdc
raid /boot --level=1 --fstype=ext3 --device=md0 raid.01 raid.02
raid / --level=1 --fstype=xfs --device=md1 raid.11 raid.12
'';
ksRaidLvmCrypt = pkgs.writeText "ks-lvm-crypt" ''
clearpart --all --initlabel --drives=vdb,vdc
part raid.1 --grow --ondisk=vdb
part raid.2 --grow --ondisk=vdc
raid pv.0 --level=1 --encrypted --passphrase=x --device=md0 raid.1 raid.2
volgroup nixos pv.0
logvol /boot --size=200 --fstype=ext3 --name=boot --vgname=nixos
logvol swap --size=500 --fstype=swap --name=swap --vgname=nixos
logvol / --size=1000 --grow --fstype=ext4 --name=root --vgname=nixos
'';
in {
name = "partitiion";
machine = { config, pkgs, ... }: {
environment.systemPackages = [
pkgs.pythonPackages.nixpart0
pkgs.file pkgs.btrfsProgs pkgs.xfsprogs pkgs.lvm2
];
virtualisation.emptyDiskImages = [ 4096 4096 ];
};
testScript = ''
my $diskStart;
my @mtab;
sub getMtab {
my $mounts = $machine->succeed("cat /proc/mounts");
chomp $mounts;
return map [split], split /\n/, $mounts;
}
sub parttest {
my ($desc, $code) = @_;
$machine->start;
$machine->waitForUnit("default.target");
# Gather mounts and superblock
@mtab = getMtab;
$diskStart = $machine->succeed("dd if=/dev/vda bs=512 count=1");
subtest($desc, $code);
$machine->shutdown;
}
sub ensureSanity {
# Check whether the filesystem in /dev/vda is still intact
my $newDiskStart = $machine->succeed("dd if=/dev/vda bs=512 count=1");
if ($diskStart ne $newDiskStart) {
$machine->log("Something went wrong, the partitioner wrote " .
"something into the first 512 bytes of /dev/vda!");
die;
}
# Check whether nixpart has unmounted anything
my @currentMtab = getMtab;
for my $mount (@mtab) {
my $path = $mount->[1];
unless (grep { $_->[1] eq $path } @currentMtab) {
$machine->log("The partitioner seems to have unmounted $path.");
die;
}
}
}
sub checkMount {
my $mounts = $machine->succeed("cat /proc/mounts");
}
sub kickstart {
$machine->copyFileFromHost($_[0], "/kickstart");
$machine->succeed("nixpart -v /kickstart");
ensureSanity;
}
sub ensurePartition {
my ($name, $match) = @_;
my $path = $name =~ /^\// ? $name : "/dev/disk/by-label/$name";
my $out = $machine->succeed("file -Ls $path");
my @matches = grep(/^$path: .*$match/i, $out);
if (!@matches) {
$machine->log("Partition on $path was expected to have a " .
"file system that matches $match, but instead has: $out");
die;
}
}
sub ensureNoPartition {
$machine->succeed("test ! -e /dev/$_[0]");
}
sub ensureMountPoint {
$machine->succeed("mountpoint $_[0]");
}
sub remountAndCheck {
$machine->nest("Remounting partitions:", sub {
# XXX: "findmnt -ARunl -oTARGET /mnt" seems to NOT print all mounts!
my $getmounts_cmd = "cat /proc/mounts | cut -d' ' -f2 | grep '^/mnt'";
# Insert canaries first
my $canaries = $machine->succeed($getmounts_cmd . " | while read p;" .
" do touch \"\$p/canary\";" .
" echo \"\$p/canary\"; done");
# Now unmount manually
$machine->succeed($getmounts_cmd . " | tac | xargs -r umount");
# /mnt should be empty or non-existing
my $found = $machine->succeed("find /mnt -mindepth 1");
chomp $found;
if ($found) {
$machine->log("Cruft found in /mnt:\n$found");
die;
}
# Try to remount with nixpart
$machine->succeed("nixpart -vm /kickstart");
ensureMountPoint("/mnt");
# Check if our beloved canaries are dead
chomp $canaries;
$machine->nest("Checking canaries:", sub {
for my $canary (split /\n/, $canaries) {
$machine->succeed("test -e '$canary'");
}
});
});
}
parttest "ext2, ext3 and ext4 filesystems", sub {
kickstart("${ksExt}");
ensurePartition("boot", "ext2");
ensurePartition("swap", "swap");
ensurePartition("nix", "ext3");
ensurePartition("root", "ext4");
ensurePartition("/dev/vdb4", "boot sector");
ensureNoPartition("vdb6");
ensureNoPartition("vdc1");
remountAndCheck;
ensureMountPoint("/mnt/boot");
ensureMountPoint("/mnt/nix");
};
parttest "btrfs filesystem", sub {
$machine->succeed("modprobe btrfs");
kickstart("${ksBtrfs}");
ensurePartition("swap1", "swap");
ensurePartition("swap2", "swap");
ensurePartition("/dev/vdb2", "btrfs");
ensurePartition("/dev/vdc2", "btrfs");
ensureNoPartition("vdb3");
ensureNoPartition("vdc3");
remountAndCheck;
};
parttest "f2fs filesystem", sub {
$machine->succeed("modprobe f2fs");
kickstart("${ksF2fs}");
ensurePartition("swap", "swap");
ensurePartition("boot", "f2fs");
ensurePartition("root", "f2fs");
remountAndCheck;
ensureMountPoint("/mnt/boot", "f2fs");
};
parttest "RAID1 with XFS", sub {
kickstart("${ksRaid}");
ensurePartition("swap1", "swap");
ensurePartition("swap2", "swap");
ensurePartition("/dev/md0", "ext3");
ensurePartition("/dev/md1", "xfs");
ensureNoPartition("vdb4");
ensureNoPartition("vdc4");
ensureNoPartition("md2");
remountAndCheck;
ensureMountPoint("/mnt/boot");
};
parttest "RAID1 with LUKS and LVM", sub {
kickstart("${ksRaidLvmCrypt}");
ensurePartition("/dev/vdb1", "data");
ensureNoPartition("vdb2");
ensurePartition("/dev/vdc1", "data");
ensureNoPartition("vdc2");
ensurePartition("/dev/md0", "luks");
ensureNoPartition("md1");
ensurePartition("/dev/nixos/boot", "ext3");
ensurePartition("/dev/nixos/swap", "swap");
ensurePartition("/dev/nixos/root", "ext4");
remountAndCheck;
ensureMountPoint("/mnt/boot");
};
'';
})
|