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|
{ config, lib, pkgs, ... }:
let
cfg = config.orbekk.monitoring-server;
aliases = import ../data/aliases.nix;
in
{
options = {
orbekk.monitoring-server = {
enable = lib.mkEnableOption "Enable monitoring server";
grafana-port = lib.mkOption {
type = lib.types.int;
default = aliases.services.grafana.port;
};
textFileDir = lib.mkOption {
type = lib.types.str;
default = "/var/lib/prometheus-node-exporter-text-files";
};
grafana-domain = lib.mkOption {
type = lib.types.str;
default = "grafana.orbekk.com";
};
prometheus-port = lib.mkOption {
type = lib.types.int;
default = aliases.services.prometheus.port;
};
prometheus-exporter-port = lib.mkOption {
type = lib.types.int;
default = aliases.services.prometheus-exporter.port;
};
prometheus-snmp-exporter-port = lib.mkOption {
type = lib.types.int;
default = aliases.services.prometheus-snmp-exporter.port;
};
snmp-targets = lib.mkOption {
type = lib.types.listOf lib.types.str;
default = [ aliases.ip.ap2 ];
};
};
};
config = lib.mkIf cfg.enable {
services.grafana = {
enable = true;
domain = cfg.grafana-domain;
port = cfg.grafana-port;
addr = "127.0.0.1";
provision = {
enable = true;
datasources = [
{
name = "Prometheus";
type = "prometheus";
access = "proxy";
orgId = 1;
editable = false;
url = "http://127.0.0.1:${toString cfg.prometheus-port}";
isDefault = true;
}
];
};
};
services.prometheus = {
enable = true;
port = cfg.prometheus-port;
scrapeConfigs = [
{
job_name = "self";
static_configs = [
{ targets = ["127.0.0.1:${toString cfg.prometheus-exporter-port}"]; }
];
}
{
job_name = "snmp";
metrics_path = "/snmp";
params = { module = [ "cisco_if_mib" ]; };
relabel_configs = [
{ source_labels = ["__address__"]; target_label = "__param_target"; }
{ source_labels = ["__param_target"]; target_label = "instance"; }
{ source_labels = []; target_label = "__address__"; replacement = "localhost:${toString cfg.prometheus-snmp-exporter-port}"; }
];
static_configs = [{
targets = cfg.snmp-targets;
}];
}
];
exporters = {
node = {
enable = true;
enabledCollectors = [ "systemd" ];
port = cfg.prometheus-exporter-port;
extraFlags = ["--collector.textfile.directory=${cfg.textFileDir}"];
};
snmp = {
enable = true;
configurationPath = ../data/snmp/snmp.yml;
port = cfg.prometheus-snmp-exporter-port;
};
};
};
system.activationScripts.node-exporter-directory.text =
''
# Needed for Prometheus node exporter.
mkdir -pm 0775 ${cfg.textFileDir}
'';
services.nginx.virtualHosts.${cfg.grafana-domain} = {
enableACME = true;
forceSSL = true;
locations."/" = {
proxyPass = "http://127.0.0.1:${toString cfg.grafana-port}";
proxyWebsockets = true;
};
};
};
}
|
