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|
{ config, lib, pkgs, options }:
with lib;
let
cfg = config.services.prometheus.exporters.smartctl;
format = pkgs.formats.yaml {};
configFile = format.generate "smartctl-exporter.yml" {
smartctl_exporter = {
bind_to = "${cfg.listenAddress}:${toString cfg.port}";
url_path = "/metrics";
smartctl_location = "${pkgs.smartmontools}/bin/smartctl";
collect_not_more_than_period = cfg.maxInterval;
devices = cfg.devices;
};
};
in {
port = 9633;
extraOpts = {
devices = mkOption {
type = types.listOf types.str;
default = [];
example = literalExpression ''
[ "/dev/sda", "/dev/nvme0n1" ];
'';
description = ''
Paths to the disks that will be monitored. Will autodiscover
all disks if none given.
'';
};
maxInterval = mkOption {
type = types.str;
default = "60s";
example = "2m";
description = ''
Interval that limits how often a disk can be queried.
'';
};
};
serviceOpts = {
serviceConfig = {
AmbientCapabilities = [
"CAP_SYS_RAWIO"
"CAP_SYS_ADMIN"
];
CapabilityBoundingSet = [
"CAP_SYS_RAWIO"
"CAP_SYS_ADMIN"
];
DevicePolicy = "closed";
DeviceAllow = lib.mkOverride 100 (
if cfg.devices != [] then
cfg.devices
else [
"block-blkext rw"
"block-sd rw"
"char-nvme rw"
]
);
ExecStart = ''
${pkgs.prometheus-smartctl-exporter}/bin/smartctl_exporter -config ${configFile}
'';
PrivateDevices = lib.mkForce false;
ProtectProc = "invisible";
ProcSubset = "pid";
SupplementaryGroups = [ "disk" ];
SystemCallFilter = [
"@system-service"
"~@privileged @resources"
];
};
};
}
|