141 lines
3.3 KiB
Nix
141 lines
3.3 KiB
Nix
{
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lib,
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pkgs,
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config,
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...
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}:
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{
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services.prometheus = {
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enable = true;
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listenAddress = "127.0.0.1";
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port = 9090;
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webExternalUrl = "https://prom.ny4.dev";
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exporters.blackbox = {
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enable = true;
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listenAddress = "127.0.0.1";
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port = 9093;
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configFile = (pkgs.formats.yaml { }).generate "config.yaml" {
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modules = {
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http_2xx = {
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prober = "http";
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};
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};
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};
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};
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scrapeConfigs = [
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{
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job_name = "metrics";
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scheme = "https";
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basic_auth = {
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username = "prometheus";
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password_file = config.sops.secrets."prometheus/auth".path;
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};
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static_configs = lib.singleton {
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targets = [
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"tyo0.ny4.dev"
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"pek0.ny4.dev"
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];
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};
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}
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{
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job_name = "http";
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scheme = "http";
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metrics_path = "/probe";
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params = {
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module = [ "http_2xx" ];
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};
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static_configs = lib.singleton {
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targets = [
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"https://blog.ny4.dev"
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"https://cinny.ny4.dev"
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"https://element.ny4.dev"
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"https://git.ny4.dev"
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"https://id.ny4.dev"
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"https://mastodon.ny4.dev"
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"https://matrix.ny4.dev"
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"https://ntfy.ny4.dev"
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"https://pb.ny4.dev"
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"https://reddit.ny4.dev"
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"https://rss.ny4.dev"
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"https://vault.ny4.dev"
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];
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};
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relabel_configs = [
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{
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source_labels = [ "__address__" ];
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target_label = "__param_target";
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}
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{
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source_labels = [ "__param_target" ];
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target_label = "instance";
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}
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{
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target_label = "__address__";
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replacement = "127.0.0.1:9093";
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}
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];
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}
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];
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rules = lib.singleton (
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builtins.toJSON {
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groups = lib.singleton {
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name = "metrics";
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rules = [
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{
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alert = "NodeDown";
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expr = ''up == 0'';
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for = "5m";
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}
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{
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alert = "HTTPDown";
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expr = ''probe_http_status_code < 200 or probe_http_status_code > 299'';
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for = "5m";
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}
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{
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alert = "MemoryFull";
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expr = ''node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes < 0.1'';
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}
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{
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alert = "DiskFull";
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expr = ''node_filesystem_avail_bytes{mountpoint=~"/|/mnt"} / node_filesystem_size_bytes < 0.1'';
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}
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{
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alert = "UnitFailed";
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expr = ''node_systemd_unit_state{state="failed"} == 1'';
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}
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];
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};
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}
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);
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alertmanagers = lib.singleton {
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static_configs = lib.singleton {
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targets = [
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"127.0.0.1:9092"
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];
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};
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};
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alertmanager = {
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enable = true;
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listenAddress = "127.0.0.1";
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port = 9092;
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configuration = {
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receivers = lib.singleton {
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name = "ntfy";
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webhook_configs = lib.singleton {
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url = "https://ntfy.ny4.dev/alert";
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};
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};
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route = {
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receiver = "ntfy";
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};
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};
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};
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};
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}
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