nixos/tests/iscsi-root.nix

   1 import ./make-test-python.nix (
   2   { pkgs, lib, ... }:
   3     let
   4       initiatorName = "iqn.2020-08.org.linux-iscsi.initiatorhost:example";
   5       targetName = "iqn.2003-01.org.linux-iscsi.target.x8664:sn.acf8fd9c23af";
   6     in
   7       {
   8         name = "iscsi";
   9         meta = {
  10           maintainers = pkgs.lib.teams.deshaw.members
  11           ++ (with pkgs.lib.maintainers; [ ajs124 ]);
  12         };
  13
  14         nodes = {
  15           target = { config, pkgs, lib, ... }: {
  16             services.target = {
  17               enable = true;
  18               config = {
  19                 fabric_modules = [];
  20                 storage_objects = [
  21                   {
  22                     dev = "/dev/vdb";
  23                     name = "test";
  24                     plugin = "block";
  25                     write_back = true;
  26                     wwn = "92b17c3f-6b40-4168-b082-ceeb7b495522";
  27                   }
  28                 ];
  29                 targets = [
  30                   {
  31                     fabric = "iscsi";
  32                     tpgs = [
  33                       {
  34                         enable = true;
  35                         attributes = {
  36                           authentication = 0;
  37                           generate_node_acls = 1;
  38                         };
  39                         luns = [
  40                           {
  41                             alias = "94dfe06967";
  42                             alua_tg_pt_gp_name = "default_tg_pt_gp";
  43                             index = 0;
  44                             storage_object = "/backstores/block/test";
  45                           }
  46                         ];
  47                         node_acls = [
  48                           {
  49                             mapped_luns = [
  50                               {
  51                                 alias = "d42f5bdf8a";
  52                                 index = 0;
  53                                 tpg_lun = 0;
  54                                 write_protect = false;
  55                               }
  56                             ];
  57                             node_wwn = initiatorName;
  58                           }
  59                         ];
  60                         portals = [
  61                           {
  62                             ip_address = "0.0.0.0";
  63                             iser = false;
  64                             offload = false;
  65                             port = 3260;
  66                           }
  67                         ];
  68                         tag = 1;
  69                       }
  70                     ];
  71                     wwn = targetName;
  72                   }
  73                 ];
  74               };
  75             };
  76
  77             networking.firewall.allowedTCPPorts = [ 3260 ];
  78             networking.firewall.allowedUDPPorts = [ 3260 ];
  79
  80             virtualisation.memorySize = 2048;
  81             virtualisation.emptyDiskImages = [ 2048 ];
  82           };
  83
  84           initiatorAuto = { nodes, config, pkgs, ... }: {
  85             services.openiscsi = {
  86               enable = true;
  87               enableAutoLoginOut = true;
  88               discoverPortal = "target";
  89               name = initiatorName;
  90             };
  91
  92             environment.systemPackages = with pkgs; [
  93               xfsprogs
  94             ];
  95
  96             system.extraDependencies = [ nodes.initiatorRootDisk.config.system.build.toplevel ];
  97
  98             nix.settings = {
  99               substituters = lib.mkForce [];
 100               hashed-mirrors = null;
 101               connect-timeout = 1;
 102             };
 103           };
 104
 105           initiatorRootDisk = { config, pkgs, modulesPath, lib, ... }: {
 106             boot.loader.grub.enable = false;
 107             boot.kernelParams = lib.mkOverride 5 (
 108               [
 109                 "boot.shell_on_fail"
 110                 "console=tty1"
 111                 "ip=${config.networking.primaryIPAddress}:::255.255.255.0::ens9:none"
 112               ]
 113             );
 114
 115             # defaults to true, puts some code in the initrd that tries to mount an overlayfs on /nix/store
 116             virtualisation.writableStore = false;
 117
 118             fileSystems = lib.mkOverride 5 {
 119               "/" = {
 120                 fsType = "xfs";
 121                 device = "/dev/sda";
 122                 options = [ "_netdev" ];
 123               };
 124             };
 125
 126             boot.iscsi-initiator = {
 127               discoverPortal = "target";
 128               name = initiatorName;
 129               target = targetName;
 130             };
 131           };
 132         };
 133
 134         testScript = { nodes, ... }: ''
 135           target.start()
 136           target.wait_for_unit("iscsi-target.service")
 137
 138           initiatorAuto.start()
 139
 140           initiatorAuto.wait_for_unit("iscsid.service")
 141           initiatorAuto.wait_for_unit("iscsi.service")
 142           initiatorAuto.get_unit_info("iscsi")
 143
 144           initiatorAuto.succeed("set -x; while ! test -e /dev/sda; do sleep 1; done")
 145
 146           initiatorAuto.succeed("mkfs.xfs /dev/sda")
 147           initiatorAuto.succeed("mkdir /mnt && mount /dev/sda /mnt")
 148           initiatorAuto.succeed(
 149               "nixos-install --no-bootloader --no-root-passwd --system ${nodes.initiatorRootDisk.config.system.build.toplevel}"
 150           )
 151           initiatorAuto.succeed("umount /mnt && rmdir /mnt")
 152           initiatorAuto.shutdown()
 153
 154           initiatorRootDisk.start()
 155           initiatorRootDisk.wait_for_unit("multi-user.target")
 156           initiatorRootDisk.wait_for_unit("iscsid")
 157           initiatorRootDisk.succeed("touch test")
 158           initiatorRootDisk.shutdown()
 159         '';
 160       }
 161 )