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{ config, lib, pkgs, options }:
with lib;
let
cfg = config.services.prometheus.exporters.buildkite-agent;
in
{
port = 9876;
extraOpts = {
tokenPath = mkOption {
type = types.nullOr types.path;
apply = final: if final == null then null else toString final;
description = ''
The token from your Buildkite "Agents" page.
A run-time path to the token file, which is supposed to be provisioned
outside of Nix store.
'';
};
interval = mkOption {
type = types.str;
default = "30s";
example = "1min";
description = ''
How often to update metrics.
'';
};
endpoint = mkOption {
type = types.str;
default = "https://agent.buildkite.com/v3";
description = ''
The Buildkite Agent API endpoint.
'';
};
queues = mkOption {
type = with types; nullOr (listOf str);
default = null;
example = literalExpression ''[ "my-queue1" "my-queue2" ]'';
description = ''
Which specific queues to process.
'';
};
};
serviceOpts = {
script =
let
queues = concatStringsSep " " (map (q: "-queue ${q}") cfg.queues);
in
''
export BUILDKITE_AGENT_TOKEN="$(cat ${toString cfg.tokenPath})"
exec ${pkgs.buildkite-agent-metrics}/bin/buildkite-agent-metrics \
-backend prometheus \
-interval ${cfg.interval} \
-endpoint ${cfg.endpoint} \
${optionalString (cfg.queues != null) queues} \
-prometheus-addr "${cfg.listenAddress}:${toString cfg.port}" ${concatStringsSep " " cfg.extraFlags}
'';
serviceConfig = {
DynamicUser = false;
RuntimeDirectory = "buildkite-agent-metrics";
};
};
}
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