M configuration.nix => configuration.nix +12 -1
@@ 6,8 6,11 @@
{
imports =
- [ # Include the results of the hardware scan.
+ [
+ # Include the results of the hardware scan.
./hardware-configuration.nix
+ # Prometheus/grafana snippet.
+ ./prometheus.nix
];
boot = {
@@ 50,9 53,17 @@
enp0s20f3.useDHCP = true;
bond0.useDHCP = true;
+ # br0.useDHCP = false;
+ # br0.ipv4.addresses = [
+ # {
+ # address = "10.11.11.2";
+ # prefixLength = 24;
+ # }
+ # ];
};
bonds.bond0.interfaces = ["enp0s20f0" "enp0s20f1" "enp0s20f2" "enp0s20f3"];
+ # bridges.br0.interfaces = ["bond0"];
# Open ports in the firewall.
firewall = {
A prometheus.nix => prometheus.nix +161 -0
@@ 0,0 1,161 @@
+# https://xeiaso.net/blog/prometheus-grafana-loki-nixos-2020-11-20
+
+{ config, pkgs, ... }:
+
+{
+ services.grafana = {
+ enable = true;
+
+ settings = {
+ analytics.reporting_enabled = false;
+ server = {
+ domain = "grafana.local";
+ http_addr = "127.0.0.1";
+ };
+ };
+ };
+
+ services.prometheus = {
+ enable = true;
+
+ exporters = {
+ node = {
+ enable = true;
+ enabledCollectors = ["systemd"];
+ };
+
+ zfs.enable = true;
+ };
+
+ scrapeConfigs = [
+ {
+ job_name = "nodes";
+ static_configs = [{
+ targets = [
+ "127.0.0.1:${toString config.services.prometheus.exporters.node.port}"
+ "127.0.0.1:${toString config.services.prometheus.exporters.zfs.port}"
+ ];
+ }];
+ }
+ ];
+ };
+
+ services.loki = {
+ enable = true;
+ configuration = {
+ server.http_listen_port = 3030;
+ auth_enabled = false;
+
+ ingester = {
+ lifecycler = {
+ address = "127.0.0.1";
+ ring = {
+ kvstore = {
+ store = "inmemory";
+ };
+ replication_factor = 1;
+ };
+ };
+ chunk_idle_period = "1h";
+ max_chunk_age = "1h";
+ chunk_target_size = 999999;
+ chunk_retain_period = "30s";
+ max_transfer_retries = 0;
+ };
+
+ schema_config = {
+ configs = [{
+ from = "2022-06-06";
+ 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";
+ };
+
+ chunk_store_config = {
+ max_look_back_period = "0s";
+ };
+
+ table_manager = {
+ retention_deletes_enabled = false;
+ retention_period = "0s";
+ };
+
+ compactor = {
+ working_directory = "/var/lib/loki";
+ shared_store = "filesystem";
+ compactor_ring = {
+ kvstore = {
+ store = "inmemory";
+ };
+ };
+ };
+ };
+ };
+
+ services.promtail = {
+ enable = true;
+ configuration = {
+ server = {
+ http_listen_port = 3031;
+ grpc_listen_port = 0;
+ };
+ positions = {
+ filename = "/tmp/positions.yaml";
+ };
+ clients = [{
+ url = "http://127.0.0.1:${toString config.services.loki.configuration.server.http_listen_port}/loki/api/v1/push";
+ }];
+ scrape_configs = [{
+ job_name = "journal";
+ journal = {
+ max_age = "12h";
+ labels = {
+ job = "systemd-journal";
+ host = "pihole";
+ };
+ };
+ relabel_configs = [{
+ source_labels = [ "__journal__systemd_unit" ];
+ target_label = "unit";
+ }];
+ }];
+ };
+ };
+
+ services.nginx = {
+ enable = true;
+ recommendedProxySettings = true;
+ virtualHosts.${config.services.grafana.settings.server.domain} = {
+ locations."/" = {
+ proxyPass = "http://127.0.0.1:${toString config.services.grafana.settings.server.http_port}";
+ proxyWebsockets = true;
+ };
+ };
+ };
+
+ # Enable port 80 for nginx
+ networking.firewall.allowedTCPPorts = [80];
+}