403 lines
14 KiB
Nix
403 lines
14 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.services.logrotate;
|
|
|
|
# deprecated legacy compat settings
|
|
# these options will be removed before 22.11 in the following PR:
|
|
# https://github.com/NixOS/nixpkgs/pull/164169
|
|
pathOpts = { name, ... }: {
|
|
options = {
|
|
enable = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = ''
|
|
Whether to enable log rotation for this path. This can be used to explicitly disable
|
|
logging that has been configured by NixOS.
|
|
'';
|
|
};
|
|
|
|
name = mkOption {
|
|
type = types.str;
|
|
internal = true;
|
|
};
|
|
|
|
path = mkOption {
|
|
type = with types; either str (listOf str);
|
|
default = name;
|
|
defaultText = "attribute name";
|
|
description = ''
|
|
The path to log files to be rotated.
|
|
Spaces are allowed and normal shell quoting rules apply,
|
|
with ', ", and \ characters supported.
|
|
'';
|
|
};
|
|
|
|
user = mkOption {
|
|
type = with types; nullOr str;
|
|
default = null;
|
|
description = ''
|
|
The user account to use for rotation.
|
|
'';
|
|
};
|
|
|
|
group = mkOption {
|
|
type = with types; nullOr str;
|
|
default = null;
|
|
description = ''
|
|
The group to use for rotation.
|
|
'';
|
|
};
|
|
|
|
frequency = mkOption {
|
|
type = types.enum [ "hourly" "daily" "weekly" "monthly" "yearly" ];
|
|
default = "daily";
|
|
description = ''
|
|
How often to rotate the logs.
|
|
'';
|
|
};
|
|
|
|
keep = mkOption {
|
|
type = types.int;
|
|
default = 20;
|
|
description = ''
|
|
How many rotations to keep.
|
|
'';
|
|
};
|
|
|
|
extraConfig = mkOption {
|
|
type = types.lines;
|
|
default = "";
|
|
description = ''
|
|
Extra logrotate config options for this path. Refer to
|
|
<link xlink:href="https://linux.die.net/man/8/logrotate"/> for details.
|
|
'';
|
|
};
|
|
|
|
priority = mkOption {
|
|
type = types.int;
|
|
default = 1000;
|
|
description = ''
|
|
Order of this logrotate block in relation to the others. The semantics are
|
|
the same as with `lib.mkOrder`. Smaller values have a greater priority.
|
|
'';
|
|
};
|
|
};
|
|
|
|
config.name = name;
|
|
};
|
|
|
|
generateLine = n: v:
|
|
if builtins.elem n [ "files" "priority" "enable" "global" ] || v == null then null
|
|
else if builtins.elem n [ "extraConfig" "frequency" ] then "${v}\n"
|
|
else if builtins.elem n [ "firstaction" "lastaction" "prerotate" "postrotate" "preremove" ]
|
|
then "${n}\n ${v}\n endscript\n"
|
|
else if isInt v then "${n} ${toString v}\n"
|
|
else if v == true then "${n}\n"
|
|
else if v == false then "no${n}\n"
|
|
else "${n} ${v}\n";
|
|
generateSection = indent: settings: concatStringsSep (fixedWidthString indent " " "") (
|
|
filter (x: x != null) (mapAttrsToList generateLine settings)
|
|
);
|
|
|
|
# generateSection includes a final newline hence weird closing brace
|
|
mkConf = settings:
|
|
if settings.global or false then generateSection 0 settings
|
|
else ''
|
|
${concatMapStringsSep "\n" (files: ''"${files}"'') (toList settings.files)} {
|
|
${generateSection 2 settings}}
|
|
'';
|
|
|
|
# below two mapPaths are compat functions
|
|
mapPathOptToSetting = n: v:
|
|
if n == "keep" then nameValuePair "rotate" v
|
|
else if n == "path" then nameValuePair "files" v
|
|
else nameValuePair n v;
|
|
|
|
mapPathsToSettings = path: pathOpts:
|
|
nameValuePair path (
|
|
filterAttrs (n: v: ! builtins.elem n [ "user" "group" "name" ] && v != "") (
|
|
(mapAttrs' mapPathOptToSetting pathOpts) //
|
|
{
|
|
su =
|
|
if pathOpts.user != null
|
|
then "${pathOpts.user} ${pathOpts.group}"
|
|
else null;
|
|
}
|
|
)
|
|
);
|
|
|
|
settings = sortProperties (attrValues (filterAttrs (_: settings: settings.enable) (
|
|
foldAttrs recursiveUpdate { } [
|
|
{
|
|
header = {
|
|
enable = true;
|
|
missingok = true;
|
|
notifempty = true;
|
|
frequency = "weekly";
|
|
rotate = 4;
|
|
};
|
|
# compat section
|
|
extraConfig = {
|
|
enable = (cfg.extraConfig != "");
|
|
global = true;
|
|
extraConfig = cfg.extraConfig;
|
|
priority = 101;
|
|
};
|
|
}
|
|
(mapAttrs' mapPathsToSettings cfg.paths)
|
|
cfg.settings
|
|
{ header = { global = true; priority = 100; }; }
|
|
]
|
|
)));
|
|
configFile = pkgs.writeTextFile {
|
|
name = "logrotate.conf";
|
|
text = concatStringsSep "\n" (
|
|
map mkConf settings
|
|
);
|
|
checkPhase = optionalString cfg.checkConfig ''
|
|
# logrotate --debug also checks that users specified in config
|
|
# file exist, but we only have sandboxed users here so brown these
|
|
# out. according to man page that means su, create and createolddir.
|
|
# files required to exist also won't be present, so missingok is forced.
|
|
user=$(${pkgs.buildPackages.coreutils}/bin/id -un)
|
|
group=$(${pkgs.buildPackages.coreutils}/bin/id -gn)
|
|
sed -e "s/\bsu\s.*/su $user $group/" \
|
|
-e "s/\b\(create\s\+[0-9]*\s*\|createolddir\s\+[0-9]*\s\+\).*/\1$user $group/" \
|
|
-e "1imissingok" -e "s/\bnomissingok\b//" \
|
|
$out > /tmp/logrotate.conf
|
|
# Since this makes for very verbose builds only show real error.
|
|
# There is no way to control log level, but logrotate hardcodes
|
|
# 'error:' at common log level, so we can use grep, taking care
|
|
# to keep error codes
|
|
set -o pipefail
|
|
if ! ${pkgs.buildPackages.logrotate}/sbin/logrotate --debug /tmp/logrotate.conf 2>&1 \
|
|
| ( ! grep "error:" ) > /tmp/logrotate-error; then
|
|
echo "Logrotate configuration check failed."
|
|
echo "The failing configuration (after adjustments to pass tests in sandbox) was:"
|
|
printf "%s\n" "-------"
|
|
cat /tmp/logrotate.conf
|
|
printf "%s\n" "-------"
|
|
echo "The error reported by logrotate was as follow:"
|
|
printf "%s\n" "-------"
|
|
cat /tmp/logrotate-error
|
|
printf "%s\n" "-------"
|
|
echo "You can disable this check with services.logrotate.checkConfig = false,"
|
|
echo "but if you think it should work please report this failure along with"
|
|
echo "the config file being tested!"
|
|
false
|
|
fi
|
|
'';
|
|
};
|
|
|
|
mailOption =
|
|
if foldr (n: a: a || n ? mail) false (attrValues cfg.settings)
|
|
then "--mail=${pkgs.mailutils}/bin/mail"
|
|
else "";
|
|
in
|
|
{
|
|
imports = [
|
|
(mkRenamedOptionModule [ "services" "logrotate" "config" ] [ "services" "logrotate" "extraConfig" ])
|
|
];
|
|
|
|
options = {
|
|
services.logrotate = {
|
|
enable = mkEnableOption "the logrotate systemd service" // {
|
|
default = foldr (n: a: a || n.enable) false (attrValues cfg.settings);
|
|
defaultText = literalExpression "cfg.settings != {}";
|
|
};
|
|
|
|
settings = mkOption {
|
|
default = { };
|
|
description = ''
|
|
logrotate freeform settings: each attribute here will define its own section,
|
|
ordered by priority, which can either define files to rotate with their settings
|
|
or settings common to all further files settings.
|
|
Refer to <link xlink:href="https://linux.die.net/man/8/logrotate"/> for details.
|
|
'';
|
|
type = types.attrsOf (types.submodule ({ name, ... }: {
|
|
freeformType = with types; attrsOf (nullOr (oneOf [ int bool str ]));
|
|
|
|
options = {
|
|
enable = mkEnableOption "setting individual kill switch" // {
|
|
default = true;
|
|
};
|
|
|
|
global = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = ''
|
|
Whether this setting is a global option or not: set to have these
|
|
settings apply to all files settings with a higher priority.
|
|
'';
|
|
};
|
|
files = mkOption {
|
|
type = with types; either str (listOf str);
|
|
default = name;
|
|
defaultText = ''
|
|
The attrset name if not specified
|
|
'';
|
|
description = ''
|
|
Single or list of files for which rules are defined.
|
|
The files are quoted with double-quotes in logrotate configuration,
|
|
so globs and spaces are supported.
|
|
Note this setting is ignored if globals is true.
|
|
'';
|
|
};
|
|
|
|
frequency = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = ''
|
|
How often to rotate the logs. Defaults to previously set global setting,
|
|
which itself defauts to weekly.
|
|
'';
|
|
};
|
|
|
|
priority = mkOption {
|
|
type = types.int;
|
|
default = 1000;
|
|
description = ''
|
|
Order of this logrotate block in relation to the others. The semantics are
|
|
the same as with `lib.mkOrder`. Smaller values are inserted first.
|
|
'';
|
|
};
|
|
};
|
|
|
|
}));
|
|
};
|
|
|
|
configFile = mkOption {
|
|
type = types.path;
|
|
default = configFile;
|
|
defaultText = ''
|
|
A configuration file automatically generated by NixOS.
|
|
'';
|
|
description = ''
|
|
Override the configuration file used by MySQL. By default,
|
|
NixOS generates one automatically from <xref linkend="opt-services.logrotate.settings"/>.
|
|
'';
|
|
example = literalExpression ''
|
|
pkgs.writeText "logrotate.conf" '''
|
|
missingok
|
|
"/var/log/*.log" {
|
|
rotate 4
|
|
weekly
|
|
}
|
|
''';
|
|
'';
|
|
};
|
|
|
|
checkConfig = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = ''
|
|
Whether the config should be checked at build time.
|
|
|
|
Some options are not checkable at build time because of the build sandbox:
|
|
for example, the test does not know about existing files and system users are
|
|
not known.
|
|
These limitations mean we must adjust the file for tests (missingok is forced
|
|
and users are replaced by dummy users), so tests are complemented by a
|
|
logrotate-checkconf service that is enabled by default.
|
|
This extra check can be disabled by disabling it at the systemd level with the
|
|
<option>services.systemd.services.logrotate-checkconf.enable</option> option.
|
|
|
|
Conversely there are still things that might make this check fail incorrectly
|
|
(e.g. a file path where we don't have access to intermediate directories):
|
|
in this case you can disable the failing check with this option.
|
|
'';
|
|
};
|
|
|
|
# deprecated legacy compat settings
|
|
paths = mkOption {
|
|
type = with types; attrsOf (submodule pathOpts);
|
|
default = { };
|
|
description = ''
|
|
Attribute set of paths to rotate. The order each block appears in the generated configuration file
|
|
can be controlled by the <link linkend="opt-services.logrotate.paths._name_.priority">priority</link> option
|
|
using the same semantics as `lib.mkOrder`. Smaller values have a greater priority.
|
|
This setting has been deprecated in favor of <link linkend="opt-services.logrotate.settings">logrotate settings</link>.
|
|
'';
|
|
example = literalExpression ''
|
|
{
|
|
httpd = {
|
|
path = "/var/log/httpd/*.log";
|
|
user = config.services.httpd.user;
|
|
group = config.services.httpd.group;
|
|
keep = 7;
|
|
};
|
|
|
|
myapp = {
|
|
path = "/var/log/myapp/*.log";
|
|
user = "myuser";
|
|
group = "mygroup";
|
|
frequency = "weekly";
|
|
keep = 5;
|
|
priority = 1;
|
|
};
|
|
}
|
|
'';
|
|
};
|
|
|
|
extraConfig = mkOption {
|
|
default = "";
|
|
type = types.lines;
|
|
description = ''
|
|
Extra contents to append to the logrotate configuration file. Refer to
|
|
<link xlink:href="https://linux.die.net/man/8/logrotate"/> for details.
|
|
This setting has been deprecated in favor of
|
|
<link linkend="opt-services.logrotate.settings">logrotate settings</link>.
|
|
'';
|
|
};
|
|
};
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
assertions =
|
|
mapAttrsToList
|
|
(name: pathOpts:
|
|
{
|
|
assertion = (pathOpts.user != null) == (pathOpts.group != null);
|
|
message = ''
|
|
If either of `services.logrotate.paths.${name}.user` or `services.logrotate.paths.${name}.group` are specified then *both* must be specified.
|
|
'';
|
|
})
|
|
cfg.paths;
|
|
|
|
warnings =
|
|
(mapAttrsToList
|
|
(name: pathOpts: ''
|
|
Using config.services.logrotate.paths.${name} is deprecated and will become unsupported in a future release.
|
|
Please use services.logrotate.settings instead.
|
|
'')
|
|
cfg.paths
|
|
) ++
|
|
(optional (cfg.extraConfig != "") ''
|
|
Using config.services.logrotate.extraConfig is deprecated and will become unsupported in a future release.
|
|
Please use services.logrotate.settings with globals=true instead.
|
|
'');
|
|
|
|
systemd.services.logrotate = {
|
|
description = "Logrotate Service";
|
|
startAt = "hourly";
|
|
|
|
serviceConfig = {
|
|
Restart = "no";
|
|
User = "root";
|
|
ExecStart = "${pkgs.logrotate}/sbin/logrotate ${mailOption} ${cfg.configFile}";
|
|
};
|
|
};
|
|
systemd.services.logrotate-checkconf = {
|
|
description = "Logrotate configuration check";
|
|
wantedBy = [ "multi-user.target" ];
|
|
serviceConfig = {
|
|
Type = "oneshot";
|
|
RemainAfterExit = true;
|
|
ExecStart = "${pkgs.logrotate}/sbin/logrotate --debug ${cfg.configFile}";
|
|
};
|
|
};
|
|
};
|
|
}
|