import ./make-test-python.nix ( { pkgs, lib, ... }: let initiatorName = "iqn.2020-08.org.linux-iscsi.initiatorhost:example"; targetName = "iqn.2003-01.org.linux-iscsi.target.x8664:sn.acf8fd9c23af"; in { name = "iscsi"; meta = { maintainers = lib.teams.deshaw.members ++ lib.teams.helsinki-systems.members; }; nodes = { target = { config, pkgs, lib, ... }: { services.target = { enable = true; config = { fabric_modules = []; storage_objects = [ { dev = "/dev/vdb"; name = "test"; plugin = "block"; write_back = true; wwn = "92b17c3f-6b40-4168-b082-ceeb7b495522"; } ]; targets = [ { fabric = "iscsi"; tpgs = [ { enable = true; attributes = { authentication = 0; generate_node_acls = 1; }; luns = [ { alias = "94dfe06967"; alua_tg_pt_gp_name = "default_tg_pt_gp"; index = 0; storage_object = "/backstores/block/test"; } ]; node_acls = [ { mapped_luns = [ { alias = "d42f5bdf8a"; index = 0; tpg_lun = 0; write_protect = false; } ]; node_wwn = initiatorName; } ]; portals = [ { ip_address = "0.0.0.0"; iser = false; offload = false; port = 3260; } ]; tag = 1; } ]; wwn = targetName; } ]; }; }; networking.firewall.allowedTCPPorts = [ 3260 ]; networking.firewall.allowedUDPPorts = [ 3260 ]; virtualisation.memorySize = 2048; virtualisation.emptyDiskImages = [ 2048 ]; }; initiatorAuto = { nodes, config, pkgs, ... }: { services.openiscsi = { enable = true; enableAutoLoginOut = true; discoverPortal = "target"; name = initiatorName; }; environment.systemPackages = with pkgs; [ xfsprogs ]; system.extraDependencies = [ nodes.initiatorRootDisk.config.system.build.toplevel ]; nix.settings = { substituters = lib.mkForce []; hashed-mirrors = null; connect-timeout = 1; }; }; initiatorRootDisk = { config, pkgs, modulesPath, lib, ... }: { boot.loader.grub.enable = false; boot.kernelParams = lib.mkOverride 5 ( [ "boot.shell_on_fail" "console=tty1" "ip=${config.networking.primaryIPAddress}:::255.255.255.0::ens9:none" ] ); # defaults to true, puts some code in the initrd that tries to mount an overlayfs on /nix/store virtualisation.writableStore = false; fileSystems = lib.mkOverride 5 { "/" = { fsType = "xfs"; device = "/dev/sda"; options = [ "_netdev" ]; }; }; boot.iscsi-initiator = { discoverPortal = "target"; name = initiatorName; target = targetName; }; }; }; testScript = { nodes, ... }: '' target.start() target.wait_for_unit("iscsi-target.service") initiatorAuto.start() initiatorAuto.wait_for_unit("iscsid.service") initiatorAuto.wait_for_unit("iscsi.service") initiatorAuto.get_unit_info("iscsi") initiatorAuto.succeed("set -x; while ! test -e /dev/sda; do sleep 1; done") initiatorAuto.succeed("mkfs.xfs /dev/sda") initiatorAuto.succeed("mkdir /mnt && mount /dev/sda /mnt") initiatorAuto.succeed( "nixos-install --no-bootloader --no-root-passwd --system ${nodes.initiatorRootDisk.config.system.build.toplevel}" ) initiatorAuto.succeed("umount /mnt && rmdir /mnt") initiatorAuto.shutdown() initiatorRootDisk.start() initiatorRootDisk.wait_for_unit("multi-user.target") initiatorRootDisk.wait_for_unit("iscsid") initiatorRootDisk.succeed("touch test") initiatorRootDisk.shutdown() ''; } )