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nixos/iscsi/initiator: init

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Co-authored-by: Graham Christensen <graham@floxdev.com>
This commit is contained in:
ajs124 2020-10-18 19:51:47 +02:00 committed by Graham Christensen
parent c2da1d7b53
commit 39b5040a4b
2 changed files with 85 additions and 0 deletions
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1
nixos/modules/module-list.nix
View file

@ -691,6 +691,7 @@
./services/networking/iodine.nix
./services/networking/iperf3.nix
./services/networking/ircd-hybrid/default.nix
./services/networking/iscsi/initiator.nix
./services/networking/iscsi/target.nix
./services/networking/iwd.nix
./services/networking/jicofo.nix

84
nixos/modules/services/networking/iscsi/initiator.nix Normal file
View file

@ -0,0 +1,84 @@
{ config, lib, pkgs, ... }: with lib;
let
cfg = config.services.openiscsi;
in
{
options.services.openiscsi = with types; {
enable = mkEnableOption "the openiscsi iscsi daemon";
enableAutoLoginOut = mkEnableOption ''
automatic login and logout of all automatic targets.
You probably do not want this.
'';
discoverPortal = mkOption {
type = nullOr str;
default = null;
description = "Portal to discover targets on";
};
name = mkOption {
type = str;
description = "Name of this iscsi initiator";
example = "iqn.2020-08.org.linux-iscsi.initiatorhost:example";
};
package = mkOption {
type = package;
description = "openiscsi package to use";
default = pkgs.openiscsi;
defaultText = "pkgs.openiscsi";
};
extraConfig = mkOption {
type = str;
default = "";
description = "Lines to append to default iscsid.conf";
};
extraConfigFile = mkOption {
description = ''
Append an additional file's contents to /etc/iscsid.conf. Use a non-store path
and store passwords in this file.
'';
default = null;
type = nullOr str;
};
};
config = mkIf cfg.enable {
environment.etc."iscsi/iscsid.conf.fragment".source = pkgs.runCommand "iscsid.conf" {} ''
cat "${cfg.package}/etc/iscsi/iscsid.conf" > $out
cat << 'EOF' >> $out
${cfg.extraConfig}
${optionalString cfg.enableAutoLoginOut "node.startup = automatic"}
EOF
'';
environment.etc."iscsi/initiatorname.iscsi".text = "InitiatorName=${cfg.name}";
system.activationScripts.iscsid = let
extraCfgDumper = optionalString (cfg.extraConfigFile != null) ''
if [ -f "${cfg.extraConfigFile}" ]; then
printf "\n# The following is from ${cfg.extraConfigFile}:\n"
cat "${cfg.extraConfigFile}"
else
echo "Warning: services.openiscsi.extraConfigFile ${cfg.extraConfigFile} does not exist!" >&2
fi
'';
in ''
(
cat ${config.environment.etc."iscsi/iscsid.conf.fragment".source}
${extraCfgDumper}
) > /etc/iscsi/iscsid.conf
'';
systemd.packages = [ cfg.package ];
systemd.services."iscsid".wantedBy = [ "multi-user.target" ];
systemd.sockets."iscsid".wantedBy = [ "sockets.target" ];
systemd.services."iscsi" = mkIf cfg.enableAutoLoginOut {
wantedBy = [ "remote-fs.target" ];
serviceConfig.ExecStartPre = mkIf (cfg.discoverPortal != null) "${cfg.package}/bin/iscsiadm --mode discoverydb --type sendtargets --portal ${escapeShellArg cfg.discoverPortal} --discover";
};
environment.systemPackages = [ cfg.package ];
boot.kernelModules = [ "iscsi_tcp" ];
};
}