From 18a770ba6cdbfdfe7c1508b0af68243c606ea51c Mon Sep 17 00:00:00 2001 From: sefidel Date: Sat, 3 Feb 2024 04:12:23 +0900 Subject: feat(modules): add metrics --- modules/services/metrics.nix | 155 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 155 insertions(+) create mode 100644 modules/services/metrics.nix (limited to 'modules/services') diff --git a/modules/services/metrics.nix b/modules/services/metrics.nix new file mode 100644 index 0000000..55f3bee --- /dev/null +++ b/modules/services/metrics.nix @@ -0,0 +1,155 @@ +{ 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" + ]; + }; +} + -- cgit 1.4.1