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{ config, lib, pkgs, ... }:
let
cfg = config.my.services.monitoring.loki;
in
{
options.my.services.monitoring.loki = with lib; {
enable = mkEnableOption "loki observability stack";
listenAddress = mkOption {
type = types.str;
default = "0.0.0.0";
description = lib.mdDoc ''
Address to listen on.
'';
};
listenPort = mkOption {
type = types.port;
default = 3100;
description = lib.mdDoc ''
Port to listen on.
'';
};
};
config = lib.mkIf cfg.enable {
services.loki = {
enable = true;
configuration = {
# no need for authentication, since we're binding on the
# wireguard interface, we can trust the connections.
auth_enabled = false;
server = {
http_listen_port = 3100;
http_listen_address = cfg.listenAddress;
};
ingester = {
lifecycler = {
address = cfg.listenAddress;
ring = {
kvstore = { store = "inmemory"; };
replication_factor = 1;
};
final_sleep = "0s";
};
# Any chunk not receiving new logs in this time will be flushed
chunk_idle_period = "1h";
# All chunks will be flushed when they hit this age, default is 1h
max_chunk_age = "1h";
# Loki will attempt to build chunks up to 1.5MB, flushing first if
# chunk_idle_period or max_chunk_age is reached first
chunk_target_size = 1048576;
# Must be greater than index read cache TTL if using an index cache (Default
# index read cache TTL is 5m)
chunk_retain_period = "30s";
# Chunk transfers disabled
max_transfer_retries = 0;
};
schema_config = {
configs = [{
from = "2020-10-24";
store = "boltdb-shipper";
object_store = "filesystem";
schema = "v11";
index = {
prefix = "index_";
period = "24h";
};
}];
};
storage_config = {
boltdb_shipper = {
active_index_directory = "/var/lib/loki/boltdb-shipper-active";
cache_location = "/var/lib/loki/boltdb-shipper-cache";
# Can be increased for faster performance over longer query periods,
# uses more disk space
cache_ttl = "24h";
shared_store = "filesystem";
};
filesystem = { directory = "/var/lib/loki/chunks"; };
};
limits_config = {
reject_old_samples = true;
reject_old_samples_max_age = "168h";
};
chunk_store_config = { max_look_back_period = "0s"; };
table_manager = {
retention_deletes_enabled = false;
retention_period = "0s";
};
compactor = {
working_directory = "/var/lib/loki/boltdb-shipper-compactor";
shared_store = "filesystem";
};
};
};
};
}
|
