nix/nixos/services/loki.nix

98 lines
2.5 KiB
Nix

{config, ...}: let
inherit (config.services) loki;
in {
services.loki = {
enable = true;
configuration = {
auth_enabled = false;
server.http_listen_port = 3100;
schema_config.configs = [
{
from = "2024-10-12";
object_store = "filesystem";
store = "tsdb";
schema = "v13";
index = {
prefix = "index_";
period = "24h";
};
}
];
storage_config."filesystem".directory = "/tmp/loki/chunks";
common = {
ring = {
instance_addr = "127.0.0.1";
kvstore.store = "inmemory";
};
replication_factor = 1;
path_prefix = "/tmp/loki";
};
limits_config = {
ingestion_rate_strategy = "local";
ingestion_rate_mb = 24;
ingestion_burst_size_mb = 36;
};
};
};
services.prometheus.scrapeConfigs = [{
job_name = "loki";
static_configs = [
{
targets = ["localhost:3100"];
}
];
}];
services.promtail = {
enable = true;
# https://grafana.com/docs/loki/latest/send-data/promtail/configuration/
configuration = {
server = {
http_listen_port = 9080;
grpc_listen_port = 0;
};
clients = [
{url = "http://localhost:3100/loki/api/v1/push";}
];
scrape_configs = [
{
job_name = "system";
journal = {
path = "/var/log/journal/";
};
relabel_configs = [
{
source_labels = ["__journal_message"];
target_label = "message";
regex = "(.+)";
}
{
source_labels = ["__journal__systemd_unit"];
target_label = "systemd_unit";
regex = "(.+)";
}
{
source_labels = ["__journal__systemd_user_unit"];
target_label = "systemd_user_unit";
regex = "(.+)";
}
{
source_labels = ["__journal__transport"];
target_label = "transport";
regex = "(.+)";
}
{
source_labels = ["__journal__priority_keyword"];
target_label = "severity";
regex = "(.+)";
}
];
}
];
};
};
services.grafana.provision.datasources.settings.datasources = [{
name = "Loki";
type = "loki";
url = "http://localhost:${toString loki.configuration.server.http_listen_port}";
}];
}