depot/cluster/services/monitoring/tracing.nix

99 lines
2.4 KiB
Nix

{ config, pkgs, ... }:
let
inherit (config) links;
dataDir = "/srv/storage/private/tempo";
tempoConfig = {
server = {
http_listen_address = links.tempo.ipv4;
http_listen_port = links.tempo.port;
grpc_listen_address = links.tempo-grpc.ipv4;
grpc_listen_port = links.tempo-grpc.port;
};
distributor.receivers.otlp = {
protocols = {
http.endpoint = links.tempo-otlp-http.tuple;
grpc.endpoint = links.tempo-otlp-grpc.tuple;
};
};
ingester = {
trace_idle_period = "30s";
max_block_bytes = 1000000;
max_block_duration = "5m";
};
compactor = {
compaction = {
compaction_window = "1h";
max_block_bytes = 100000000;
compacted_block_retention = "10m";
};
};
storage.trace = {
backend = "local";
block.bloom_filter_false_positive = 0.05;
wal.path = "${dataDir}/wal";
local.path = "${dataDir}/blocks";
pool = {
max_workers = 16;
queue_depth = 1000;
};
};
metrics_generator = {
registry.external_labels = {
source = "tempo";
host = config.networking.hostName;
};
storage = {
path = "${dataDir}/generator/wal";
remote_write = [
{
url = "${links.prometheus.url}/api/v1/write";
send_exemplars = true;
}
];
};
};
overrides.metrics_generator_processors = [
"service-graphs"
"span-metrics"
];
};
in {
links = {
tempo.protocol = "http";
tempo-grpc.protocol = "http";
tempo-otlp-http.protocol = "http";
tempo-otlp-grpc.protocol = "http";
};
users.users.tempo = {
isSystemUser = true;
group = "tempo";
home = dataDir;
createHome = true;
};
users.groups.tempo = {};
systemd.services.tempo = {
wantedBy = [ "multi-user.target" ];
serviceConfig = {
User = "tempo";
Group = "tempo";
ExecStart = "${pkgs.tempo}/bin/tempo -config.file=${pkgs.writeText "tempo.yaml" (builtins.toJSON tempoConfig)}";
PrivateTmp = true;
};
};
services.grafana.provision.datasources.settings.datasources = [
{
name = "Tempo";
uid = "P214B5B846CF3925F";
inherit (links.tempo) url;
type = "tempo";
jsonData = {
serviceMap.datasourceUid = "PBFA97CFB590B2093"; # prometheus
nodeGraph.enabled = true;
};
}
];
}