infra/modules/loki/default.nix
2024-05-08 22:57:07 +02:00

108 lines
2.7 KiB
Nix

{
config,
lib,
pkgs,
flake,
...
}:
{
services.caddy.virtualHosts = {
"flora-6.${config.pub-solar-os.networking.domain}" = {
logFormat = lib.mkForce ''
output discard
'';
extraConfig = ''
basicauth * {
${config.pub-solar-os.authentication.robot.username} $2a$14$mmIAy/Ezm6YGohUtXa2mWeW6Bcw1MQXPhrRbz14jAD2iUu3oob/t.
}
reverse_proxy :${toString config.services.loki.configuration.server.http_listen_port}
'';
};
};
# source: https://gist.github.com/rickhull/895b0cb38fdd537c1078a858cf15d63e
# https://grafana.com/docs/loki/latest/configure/examples/#1-local-configuration-exampleyaml
services.loki = {
enable = true;
configuration = {
server.http_listen_port = 3100;
auth_enabled = false;
common = {
ring = {
instance_addr = "127.0.0.1";
kvstore = {
store = "inmemory";
};
};
replication_factor = 1;
path_prefix = "/var/lib/loki";
storage = {
filesystem = {
chunks_directory = "chunks/";
rules_directory = "rules/";
};
};
};
# Keep logs for 4 weeks
# https://grafana.com/docs/loki/latest/operations/storage/retention/
limits_config.retention_period = "4w";
compactor = {
shared_store = "filesystem";
compaction_interval = "10m";
retention_enabled = true;
retention_delete_delay = "2h";
retention_delete_worker_count = 150;
};
schema_config = {
configs = [
{
from = "2020-05-15";
store = "boltdb-shipper";
object_store = "filesystem";
schema = "v11";
index = {
prefix = "index_";
period = "24h";
};
}
];
};
};
};
services.promtail = {
enable = true;
configuration = {
server = {
http_listen_port = 9080;
grpc_listen_port = 0;
};
positions = {
filename = "/tmp/positions.yaml";
};
clients = [
{
url = "http://127.0.0.1:${toString config.services.loki.configuration.server.http_listen_port}/loki/api/v1/push";
}
];
scrape_configs = [
{
job_name = "journal";
journal = {
max_age = "24h";
labels = {
job = "systemd-journal";
host = "flora-6";
};
};
relabel_configs = [
{
source_labels = [ "__journal__systemd_unit" ];
target_label = "unit";
}
];
}
];
};
};
}