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|
{ config, lib, ... }:
with lib;
let
cfg = config.modules.services.metrics;
in
{
options.modules.services.metrics = {
enable = mkEnableOption "metrics";
realHost = mkOption { type = types.str; };
secrets.adminPassword = mkOption { type = types.path; description = "path to the admin password"; };
};
config = mkIf cfg.enable {
services.prometheus = {
enable = true;
port = 9001;
exporters = {
node = {
enable = true;
enabledCollectors = [ "systemd" ];
port = 9002;
};
};
scrapeConfigs = [
{
job_name = "node";
static_configs = [{
targets = [ "127.0.0.1:${toString config.services.prometheus.exporters.node.port}" ];
}];
}
];
};
services.loki = {
enable = true;
configuration = {
auth_enabled = false;
server.http_listen_port = 9003;
ingester = {
lifecycler = {
address = "127.0.0.1";
ring.kvstore.store = "inmemory";
ring.replication_factor = 1;
final_sleep = "0s";
};
chunk_idle_period = "1h";
max_chunk_age = "1h";
chunk_target_size = 1048576; # 1.5M
chunk_retain_period = "30s";
max_transfer_retries = 0;
};
schema_config.configs = [
{
from = "2023-02-24";
store = "boltdb-shipper";
object_store = "filesystem";
schema = "v11";
index = {
prefix = "index_";
period = "24h";
};
}
];
storage_config = {
boltdb_shipper = {
active_index_directory = "/var/lib/loki/boltdb-shipper-active";
cache_location = "/var/lib/loki/boltdb-shipper-cache";
cache_ttl = "24h";
shared_store = "filesystem";
};
filesystem.directory = "/var/lib/loki/chunks";
};
limits_config = {
reject_old_samples = true;
reject_old_samples_max_age = "168h";
retention_period = "120h";
};
chunk_store_config = {
max_look_back_period = "0s";
};
table_manager = {
retention_deletes_enabled = true;
retention_period = "120h";
};
compactor = {
working_directory = "/var/lib/loki";
shared_store = "filesystem";
compactor_ring.kvstore.store = "inmemory";
};
};
};
services.promtail = {
enable = true;
configuration = {
server = {
http_listen_port = 9004;
grpc_listen_port = 0;
};
positions.filename = "/tmp/positions.yaml";
clients = [
{ url = "http://127.0.0.1:${toString config.services.loki.configuration.server.http_listen_port}/loki/api/v1/push"; }
];
scrape_configs = [
{
job_name = "journal";
journal = {
max_age = "12h";
labels = {
job = "systemd-journal";
host = config.networking.hostName;
};
};
relabel_configs = [
{
source_labels = [ "__journal__systemd_unit" ];
target_label = "unit";
}
];
}
];
};
};
services.grafana = {
enable = true;
settings.server.http_addr = "127.0.0.1";
settings.server.http_port = 4001;
# settings.server.domain = cfg.realHost;
settings.security.admin_password = "$__file{${cfg.secrets.adminPassword}}";
settings.analytics.reporting_enabled = false;
};
modules.persistence.directories = [
"/var/lib/prometheus2"
"/var/lib/loki"
"/var/lib/grafana"
];
};
}
|
