stockholm/krebs/3modules/secret.nix

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{ config, lib, pkgs, ... }:
with import ../../lib/pure.nix { inherit lib; }; let
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cfg = config.krebs.secret;
in {
options.krebs.secret = {
directory = mkOption {
default = toString <secrets>;
type = types.absolute-pathname;
};
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files = mkOption {
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type = with pkgs.stockholm.lib.types; attrsOf secret-file;
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default = {};
apply = mapAttrs (name: secret-file:
if types.absolute-pathname.check secret-file.source-path then
secret-file
else
secret-file // {
source-path = "${config.krebs.secret.directory}/secret-file.source-path";
}
);
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};
};
config = lib.mkIf (cfg.files != {}) {
systemd.paths =
mapAttrs'
(name: file: nameValuePair "secret-trigger-${systemd.encodeName name}" {
wantedBy = ["multi-user.target"];
pathConfig.PathChanged = file.source-path;
})
cfg.files;
systemd.services =
mapAttrs'
(name: file: nameValuePair "secret-trigger-${systemd.encodeName name}" {
serviceConfig = {
Type = "oneshot";
ExecStart = "${pkgs.systemd}/bin/systemctl restart ${shell.escape file.service}";
};
})
cfg.files
//
mapAttrs'
(name: file: nameValuePair "secret-${systemd.encodeName name}" {
wantedBy = ["multi-user.target"];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = "yes";
ExecStart = toString [
"${pkgs.coreutils}/bin/install"
"-D"
"--compare"
"--verbose"
"--mode=${file.mode}"
"--owner=${file.owner.name}"
"--group=${file.group-name}"
file.source-path
file.path
];
};
})
cfg.files;
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};
}