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service/loki: fix loki 3.0.0

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Felix Buehler 2024-06-01 18:47:54 +02:00
parent 1d45ea7ac2
commit baed8f6fc3
1 changed files with 115 additions and 89 deletions
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204
modules/services/loki/default.nix
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@ -61,106 +61,132 @@ in
};
};
config = lib.mkIf cfg.enable {
services = {
loki = {
enable = true;
configuration = {
server = {
http_listen_address = "127.0.0.1";
http_listen_port = cfg.port;
};
auth_enabled = false;
config =
let
rulerConfig = {
groups = [
{
name = "alerting-rules";
rules = lib.mapAttrsToList
(name: opts: {
alert = name;
inherit (opts) condition labels;
for = opts.time;
annotations.description = opts.description;
})
cfg.rules;
}
];
};
rulerFile = pkgs.writeText "ruler.yml" (builtins.toJSON rulerConfig);
in
lib.mkIf cfg.enable {
services = {
loki = {
enable = true;
configuration = {
server = {
http_listen_address = "127.0.0.1";
http_listen_port = cfg.port;
};
auth_enabled = false;
common = {
instance_addr = "127.0.0.1";
ring.kvstore.store = "inmemory";
replication_factor = 1;
path_prefix = "/tmp/loki";
};
common = {
instance_addr = "127.0.0.1";
ring.kvstore.store = "inmemory";
replication_factor = 1;
ruler = lib.mkIf config.my.services.alertmanager.enable {
storage = {
type = "local";
local = {
# having the "fake" directory is important, because loki is running in single-tenant mode
directory = pkgs.writeTextDir "fake/loki-rules.yml" (builtins.toJSON {
groups = [
{
name = "alerting-rules";
rules = lib.mapAttrsToList
(name: opts: {
alert = name;
inherit (opts) condition labels;
for = opts.time;
annotations.description = opts.description;
})
cfg.rules;
}
];
});
path_prefix = config.services.loki.dataDir;
storage.filesystem = {
chunks_directory = "${config.services.loki.dataDir}/chunks";
rules_directory = "${config.services.loki.dataDir}/rules";
};
};
alertmanager_url = "http://127.0.0.1:${toString config.my.services.alertmanager.port}";
enable_alertmanager_v2 = true;
};
schema_config = {
configs = [{
from = "2020-05-15";
store = "boltdb-shipper";
object_store = "filesystem";
schema = "v11";
index = {
prefix = "index_";
period = "24h";
ruler = lib.mkIf config.my.services.alertmanager.enable {
storage = {
type = "local";
local.directory = "${config.services.loki.dataDir}/ruler";
};
}];
rule_path = "${config.services.loki.dataDir}/rules";
alertmanager_url = "http://127.0.0.1:${toString config.my.services.alertmanager.port}";
enable_alertmanager_v2 = true;
};
schema_config = {
configs = [{
from = "2020-11-08";
store = "tsdb";
object_store = "filesystem";
schema = "v13";
index = {
prefix = "index_";
period = "24h";
};
}];
};
limits_config = {
max_query_lookback = "672h"; # 28 days
retention_period = "672h"; # 28 days
};
compactor = {
working_directory = "${config.services.loki.dataDir}/compactor";
retention_enabled = true;
delete_request_store = "filesystem";
};
};
};
grafana.provision = {
datasources.settings.datasources = [
{
name = "Loki";
type = "loki";
access = "proxy";
url = "http://127.0.0.1:${toString cfg.port}";
}
];
dashboards.settings.providers = [
{
name = "Loki";
options.path = pkgs.grafana-dashboards.loki;
disableDeletion = true;
}
];
};
prometheus = {
scrapeConfigs = [
{
job_name = "loki";
static_configs = [
{
targets = [ "127.0.0.1:${toString cfg.port}" ];
labels = {
instance = config.networking.hostName;
};
}
];
}
];
};
};
grafana.provision = {
datasources.settings.datasources = [
{
name = "Loki";
type = "loki";
access = "proxy";
url = "http://127.0.0.1:${toString cfg.port}";
}
];
dashboards.settings.providers = [
{
name = "Loki";
options.path = pkgs.grafana-dashboards.loki;
disableDeletion = true;
}
];
};
systemd.tmpfiles.rules = [
"d /var/lib/loki 0700 loki loki - -"
"d /var/lib/loki/ruler 0700 loki loki - -"
"d /var/lib/loki/rules 0700 loki loki - -"
"L /var/lib/loki/ruler/ruler.yml - - - - ${rulerFile}"
];
systemd.services.loki.reloadTriggers = [ rulerFile ];
prometheus = {
scrapeConfigs = [
{
job_name = "loki";
static_configs = [
{
targets = [ "127.0.0.1:${toString cfg.port}" ];
labels = {
instance = config.networking.hostName;
};
}
];
}
];
my.services.loki.rules = {
loki_highLogRate = {
condition = ''sum by (host) (rate({unit="loki.service"}[1m])) > 60'';
description = "Loki has a high logging rate";
};
};
};
my.services.loki.rules = {
loki_highLogRate = {
condition = ''sum by (host) (rate({unit="loki.service"}[1m])) > 60'';
description = "Loki has a high logging rate";
};
};
};
}