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