48 lines
1.3 KiB
Nix
48 lines
1.3 KiB
Nix
{ config, lib, pkgs, options }:
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with lib;
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let
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cfg = config.services.prometheus.exporters.postgres;
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in
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{
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port = 9187;
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extraOpts = {
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telemetryPath = mkOption {
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type = types.str;
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default = "/metrics";
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description = ''
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Path under which to expose metrics.
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'';
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};
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dataSourceName = mkOption {
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type = types.str;
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default = "user=postgres database=postgres host=/run/postgresql sslmode=disable";
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example = "postgresql://username:password@localhost:5432/postgres?sslmode=disable";
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description = ''
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Accepts PostgreSQL URI form and key=value form arguments.
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'';
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};
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runAsLocalSuperUser = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to run the exporter as the local 'postgres' super user.
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'';
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};
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};
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serviceOpts = {
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environment.DATA_SOURCE_NAME = cfg.dataSourceName;
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serviceConfig = {
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DynamicUser = false;
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User = mkIf cfg.runAsLocalSuperUser (mkForce "postgres");
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ExecStart = ''
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${pkgs.prometheus-postgres-exporter}/bin/postgres_exporter \
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--web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
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--web.telemetry-path ${cfg.telemetryPath} \
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${concatStringsSep " \\\n " cfg.extraFlags}
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'';
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};
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};
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}
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