53 lines
1.4 KiB
Nix
53 lines
1.4 KiB
Nix
{ config, lib, pkgs, options, ... }:
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let
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cfg = config.services.prometheus.exporters.py-air-control;
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inherit (lib) mkOption types;
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workingDir = "/var/lib/${cfg.stateDir}";
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in
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{
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port = 9896;
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extraOpts = {
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deviceHostname = mkOption {
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type = types.str;
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example = "192.168.1.123";
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description = ''
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The hostname of the air purification device from which to scrape the metrics.
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'';
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};
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protocol = mkOption {
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type = types.str;
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default = "http";
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description = ''
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The protocol to use when communicating with the air purification device.
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Available: [http, coap, plain_coap]
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'';
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};
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stateDir = mkOption {
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type = types.str;
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default = "prometheus-py-air-control-exporter";
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description = ''
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Directory below `/var/lib` to store runtime data.
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This directory will be created automatically using systemd's StateDirectory mechanism.
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'';
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};
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};
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serviceOpts = {
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serviceConfig = {
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DynamicUser = false;
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StateDirectory = cfg.stateDir;
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WorkingDirectory = workingDir;
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ExecStart = ''
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${pkgs.python3Packages.py-air-control-exporter}/bin/py-air-control-exporter \
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--host ${cfg.deviceHostname} \
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--protocol ${cfg.protocol} \
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--listen-port ${toString cfg.port} \
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--listen-address ${cfg.listenAddress}
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'';
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Environment = [ "HOME=${workingDir}" ];
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};
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};
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}
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