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alpine: loki fixes

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Tristan 2025-08-04 21:39:05 +01:00
parent 76306f2caf
commit b5f1220ea9
4 changed files with 71 additions and 62 deletions
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116
nixos/services/loki.nix
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@ -21,78 +21,74 @@ in {
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";
};
# https://grafana.com/docs/loki/latest/configure/#limits_config
limits_config = {
ingestion_rate_strategy = "local";
ingestion_rate_mb = 24;
ingestion_burst_size_mb = 36;
ingestion_rate_mb = 128;
ingestion_burst_size_mb = 256;
max_streams_per_user = 0;
max_global_streams_per_user = 0;
};
};
};
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 = [
services.prometheus.scrapeConfigs = [
{
job_name = "loki";
static_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 = "(.+)";
}
];
targets = ["localhost:3100"];
}
];
};
}
];
services.alloy = {
enable = true;
};
services.grafana.provision.datasources.settings.datasources = [{
name = "Loki";
type = "loki";
url = "http://localhost:${toString loki.configuration.server.http_listen_port}";
}];
environment.etc."alloy/config.alloy" = {
text = ''
discovery.relabel "system" {
targets = []
rule {
source_labels = ["__journal__systemd_unit", "__journal__systemd_user_unit"]
regex = "(.+)"
target_label = "systemd_unit"
}
rule {
source_labels = ["__journal__priority_keyword"]
regex = "(.+)"
target_label = "severity"
}
}
loki.source.journal "system" {
max_age = "1h0m0s"
path = "/var/log/journal/"
relabel_rules = discovery.relabel.system.rules
forward_to = [loki.write.default.receiver]
labels = {}
}
loki.write "default" {
endpoint {
url = "http://localhost:3100/loki/api/v1/push"
}
max_streams = 24
}
'';
};
services.grafana.provision.datasources.settings.datasources = [
{
name = "Loki";
type = "loki";
url = "http://localhost:${toString loki.configuration.server.http_listen_port}";
}
];
}