29c5178bdf
list of user accounts that the job needs to run. For instance, the
SSH daemon job says:
{ name = "sshd";
uid = (import ../system/ids.nix).uids.sshd;
description = "SSH privilege separation user";
home = "/var/empty";
}
The activation script creates the system users/groups and updates
them as well. So a change in the Nix expression can be realised in
/etc/{group,passwd} by running nixos-rebuild.
svn path=/nixos/trunk/; revision=8846
72 lines
1.9 KiB
Nix
72 lines
1.9 KiB
Nix
{pkgs, upstartJobs, defaultShell}:
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let ids = import ./ids.nix; in
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rec {
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# System user accounts.
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systemUsers =
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let
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jobUsers = pkgs.lib.concatLists (map (job: job.users) upstartJobs.jobs);
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defaultUsers =
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[
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{ name = "root";
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uid = ids.uids.root;
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description = "System administrator";
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home = "/root";
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shell = defaultShell;
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}
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{ name = "nobody";
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uid = ids.uids.nobody;
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description = "Unprivileged account (don't use!)";
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}
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];
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makeNixBuildUser = nr:
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{ name = "nixbld${toString nr}";
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description = "Nix build user ${toString nr}";
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uid = builtins.add ids.uids.nixbld nr;
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extraGroups = ["nixbld"];
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};
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nixBuildUsers = map makeNixBuildUser (pkgs.lib.range 1 10);
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addAttrs =
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{ name
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, description
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, uid ? ""
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, group ? "nogroup"
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, extraGroups ? []
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, home ? "/var/empty"
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, shell ? "/noshell"
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}:
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{ inherit name description uid group extraGroups home shell; };
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in map addAttrs (defaultUsers ++ jobUsers ++ nixBuildUsers);
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# System groups.
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systemGroups =
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[
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{ name = "root";
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gid = ids.gids.root;
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}
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{ name = "nogroup";
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gid = ids.gids.nogroup;
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}
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{ name = "users";
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gid = ids.gids.users;
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}
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{ name = "nixbld";
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gid = ids.gids.nixbld;
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}
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];
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# Awful hackery necessary to pass the users/groups to the activation script.
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createUsersGroups = ../helpers/create-users-groups.sh;
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usersList = pkgs.writeText "users" (pkgs.lib.concatStrings (map (u: "${u.name}\n${u.description}\n${toString u.uid}\n${u.group}\n${toString u.extraGroups}\n${u.home}\n${u.shell}\n") systemUsers));
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groupsList = pkgs.writeText "groups" (pkgs.lib.concatStrings (map (g: "${g.name}\n${toString g.gid}\n") systemGroups));
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} |