forked from DGNum/liminix
105 lines
3 KiB
Nix
105 lines
3 KiB
Nix
## Users
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## =====
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##
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## User- and group-related configuration.
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##
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## Changes made here are reflected in files such as :file:/etc/shadow,
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## :file:/etc/passwd, :file:/etc/group etc. If you are familiar with
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## user configuration in NixOS, please note that Liminix does not have
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## the concept of "mutable users" - files in /etc/ are symlinks to
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## the immutable store, so you can't e.g change a password with
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## :command:`passwd`
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{ lib, pkgs, config, ...}:
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let
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inherit (lib)
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concatStrings concatStringsSep mapAttrsToList mkOption types;
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inherit (builtins) toString;
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inherit (pkgs.pseudofile) dir symlink;
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passwd-file =
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let lines = mapAttrsToList (name: u: "${name}:${if u ? passwd then u.passwd else "!!"}:${toString u.uid}:${toString u.gid}:${u.gecos}:${u.dir}:${u.shell}\n" )
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config.users;
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in concatStrings lines;
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group-file =
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let lines = mapAttrsToList
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(name: {gid, usernames ? []}:
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"${name}:x:${toString gid}:${concatStringsSep "," usernames}\n" )
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config.groups;
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in concatStrings lines;
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in {
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options = {
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users = mkOption {
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type = types.attrsOf (types.submodule {
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options = {
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passwd = mkOption {
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type = types.str;
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description = "encrypted password, as generated by mkpasswd -m sha512crypt";
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example = "$6$RIYL.EgWOrtoJ0/7$Z53a8sc0o6AU/kuFOGiLJKhwVavTG/deoM7JTs6luNczYSUsh4UYmhvT8sVzm.l8F/LZXhhhkC7IHQs5UGAIM/";
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default = "!!";
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};
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uid = mkOption {
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type = types.int;
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};
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gid = mkOption {
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type = types.int;
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};
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gecos = mkOption {
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type = types.str;
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default = "";
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example = "Jo Q User";
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};
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dir = mkOption {
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type = types.str;
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default = "/run";
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};
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shell = mkOption {
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type = types.str;
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default = "/bin/sh";
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};
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openssh.authorizedKeys.keys = mkOption {
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type = types.listOf types.str;
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default = [];
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};
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};
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});
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};
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groups = mkOption {
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type = types.attrsOf (types.submodule {
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options = {
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gid = mkOption {
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type = types.int;
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};
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usernames = mkOption {
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type = types.listOf types.str;
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default = [];
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};
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};
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});
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};
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};
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config =
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let authorized_key_files =
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lib.attrsets.mapAttrs
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(name: val: dir {
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".ssh" = dir {
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authorized_keys = {
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inherit (val) uid gid;
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type = "f";
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mode = "0400";
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file = lib.concatStringsSep
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"\n" val.openssh.authorizedKeys.keys;
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};
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};
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})
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config.users;
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in {
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filesystem = dir {
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etc = dir {
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passwd = { file = passwd-file; };
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group = { file = group-file; };
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};
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home = dir authorized_key_files;
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};
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};
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}
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