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nixos/tests/zfs: Represent real world usage better

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It's better to utilize the boot process and systemd mechanisms to test
these zfs features, rather than manually simulating the same behavior
with testScript.
This commit is contained in:
Will Fancher 2022-12-24 18:33:57 -05:00
parent a45968c1e4
commit 22b6f785a7
1 changed files with 92 additions and 64 deletions
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114
nixos/tests/zfs.nix
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@ -17,19 +17,32 @@ let
makeTest {
name = "zfs-" + name;
meta = with pkgs.lib.maintainers; {
maintainers = [ adisbladis ];
maintainers = [ adisbladis elvishjerricco ];
};
nodes.machine = { pkgs, lib, ... }:
let
usersharePath = "/var/lib/samba/usershares";
in {
virtualisation.emptyDiskImages = [ 4096 ];
virtualisation = {
emptyDiskImages = [ 4096 ];
useBootLoader = true;
useEFIBoot = true;
};
boot.loader.systemd-boot.enable = true;
boot.loader.timeout = 0;
boot.loader.efi.canTouchEfiVariables = true;
networking.hostId = "deadbeef";
boot.kernelPackages = kernelPackage;
boot.supportedFilesystems = [ "zfs" ];
boot.zfs.enableUnstable = enableUnstable;
environment.systemPackages = [ pkgs.parted ];
# /dev/disk/by-id doesn't get populated in the NixOS test framework
boot.zfs.devNodes = "/dev/disk/by-uuid";
specialisation.samba.configuration = {
services.samba = {
enable = true;
extraConfig = ''
@ -42,78 +55,93 @@ let
};
systemd.services.samba-smbd.serviceConfig.ExecStartPre =
"${pkgs.coreutils}/bin/mkdir -m +t -p ${usersharePath}";
environment.systemPackages = [ pkgs.parted ];
# Setup regular fileSystems machinery to ensure forceImportAll can be
# tested via the regular service units.
virtualisation.fileSystems = {
"/forcepool" = {
"/tmp/mnt" = {
device = "rpool/root";
fsType = "zfs";
};
};
};
specialisation.encryption.configuration = {
virtualisation.fileSystems."/automatic" = {
device = "automatic";
fsType = "zfs";
};
};
specialisation.forcepool.configuration = {
systemd.services.zfs-import-forcepool.wantedBy = lib.mkVMOverride [ "forcepool.mount" ];
systemd.targets.zfs.wantedBy = lib.mkVMOverride [];
boot.zfs.forceImportAll = true;
virtualisation.fileSystems."/forcepool" = {
device = "forcepool";
fsType = "zfs";
options = [ "noauto" ];
};
};
# forcepool doesn't exist at first boot, and we need to manually test
# the import after tweaking the hostId.
systemd.services.zfs-import-forcepool.wantedBy = lib.mkVMOverride [];
systemd.targets.zfs.wantedBy = lib.mkVMOverride [];
boot.zfs.forceImportAll = true;
# /dev/disk/by-id doesn't get populated in the NixOS test framework
boot.zfs.devNodes = "/dev/disk/by-uuid";
};
testScript = ''
machine.wait_for_unit("multi-user.target")
machine.succeed(
"modprobe zfs",
"zpool status",
"ls /dev",
"mkdir /tmp/mnt",
"udevadm settle",
"parted --script /dev/vdb mklabel msdos",
"parted --script /dev/vdb -- mkpart primary 1024M -1s",
"udevadm settle",
"zpool create rpool /dev/vdb1",
"parted --script /dev/vdc mklabel msdos",
"parted --script /dev/vdc -- mkpart primary 1024M -1s",
)
with subtest("sharesmb works"):
machine.succeed(
"zpool create rpool /dev/vdc1",
"zfs create -o mountpoint=legacy rpool/root",
# shared datasets cannot have legacy mountpoint
"zfs create rpool/shared_smb",
"mount -t zfs rpool/root /tmp/mnt",
"udevadm settle",
# wait for samba services
"systemctl is-system-running --wait",
"bootctl set-default nixos-generation-1-specialisation-samba.conf",
"sync",
)
machine.crash()
machine.wait_for_unit("multi-user.target")
machine.succeed(
"zfs set sharesmb=on rpool/shared_smb",
"zfs share rpool/shared_smb",
"smbclient -gNL localhost | grep rpool_shared_smb",
"umount /tmp/mnt",
"zpool destroy rpool",
"udevadm settle",
)
with subtest("encryption works"):
machine.succeed(
'echo password | zpool create -o altroot="/tmp/mnt" '
+ "-O encryption=aes-256-gcm -O keyformat=passphrase rpool /dev/vdb1",
"zfs create -o mountpoint=legacy rpool/root",
"mount -t zfs rpool/root /tmp/mnt",
"udevadm settle",
"umount /tmp/mnt",
"zpool destroy rpool",
"udevadm settle",
'echo password | zpool create -O mountpoint=legacy '
+ "-O encryption=aes-256-gcm -O keyformat=passphrase automatic /dev/vdc1",
"bootctl set-default nixos-generation-1-specialisation-encryption.conf",
"sync",
"zpool export automatic",
)
machine.crash()
machine.start()
machine.wait_for_console_text("Starting password query on")
machine.send_console("password\n")
machine.wait_for_unit("multi-user.target")
machine.succeed(
"umount /automatic",
"zpool destroy automatic",
)
with subtest("boot.zfs.forceImportAll works"):
machine.succeed(
"rm /etc/hostid",
"zgenhostid deadcafe",
"zpool create forcepool /dev/vdb1 -O mountpoint=legacy",
"zpool create forcepool /dev/vdc1 -O mountpoint=legacy",
"bootctl set-default nixos-generation-1-specialisation-forcepool.conf",
"rm /etc/hostid",
"sync",
)
machine.shutdown()
machine.start()
machine.succeed("udevadm settle")
machine.crash()
machine.wait_for_unit("multi-user.target")
machine.fail("zpool import forcepool")
machine.succeed(
"systemctl start zfs-import-forcepool.service",
"mount -t zfs forcepool /tmp/mnt",
"systemctl start forcepool.mount",
"mount | grep forcepool",
)
'' + extraTest;