nixfiles/hosts/kaon/monitoring.nix
2021-04-12 14:03:26 +02:00

148 lines
3.5 KiB
Nix

{ config, pkgs, lib, ... }:
with lib;
let
hosts = (import ../../lib/hosts.nix { inherit pkgs; }).hosts;
monitoringHosts = filterAttrs (name: host:
attrByPath ["clerie" "monitoring" "enable"] false host.config)
hosts;
monitoringHostsNames = mapAttrs' (name: host:
nameValuePair "${host.config.clerie.monitoring.networkBase}${host.config.clerie.monitoring.id}" ["${host.config.networking.hostName}.mon.entr0py.de"])
monitoringHosts;
monitoringPeers = mapAttrsToList (name: host: {
allowedIPs = [ "${host.config.clerie.monitoring.networkBase}${host.config.clerie.monitoring.id}/128" ];
publicKey = host.config.clerie.monitoring.pubkey;
})
monitoringHosts;
monitoringTargets = mapAttrsToList (name: host:
"${host.config.networking.hostName}.mon.entr0py.de:9100")
monitoringHosts;
in {
networking.hosts = {
"fd00:23:23:23::1" = [ "monitoring-1.mon.entr0py.de" ];
}
// monitoringHostsNames;
networking.wireguard.enable = true;
networking.wireguard.interfaces = {
wg-monitoring = {
ips = [ "fd00:23:23:23::1/64" ];
listenPort = 51820;
peers = monitoringPeers;
privateKeyFile = "/run/keys/wg-mon_priv";
};
};
networking.firewall.allowedUDPPorts = [ config.networking.wireguard.interfaces.wg-monitoring.listenPort ];
services.prometheus.exporters.node.enable = true;
services.prometheus = {
enable = true;
listenAddress = "[::1]";
scrapeConfigs = [
{
job_name = "prometheus";
scrape_interval = "20s";
scheme = "http";
static_configs = [
{
targets = [
"[::1]:9090"
];
}
];
}
{
job_name = "node-exporter";
scrape_interval = "60s";
static_configs = [
{
targets = [
"monitoring-1.mon.entr0py.de:9100"
]
++ monitoringTargets;
}
];
}
];
};
services.postgresql = {
enable = true;
package = pkgs.postgresql_12;
ensureDatabases = [ "grafana" ];
ensureUsers = [
{
name = "grafana";
ensurePermissions."DATABASE grafana" = "ALL PRIVILEGES";
}
];
};
services.grafana = {
enable = true;
domain = "grafana.monitoring.entr0py.de";
rootUrl = "https://grafana.monitoring.entr0py.de";
port = 3001;
addr = "::1";
database = {
type = "postgres";
name = "grafana";
user = "grafana";
host = "/run/postgresql";
};
auth.anonymous.enable = true;
security = {
adminUser = "garionion";
adminPasswordFile = "/run/keys/grafana-admin";
};
provision = {
enable = true;
datasources = [
{
type = "prometheus";
name = "Prometheus";
url = "http://[::1]:9090";
isDefault = true;
}
];
dashboards = [
{
options.path = ./dashboards;
}
];
};
};
systemd.services.grafana.after = ["postgresql.service"];
services.nginx = {
enable = true;
virtualHosts = {
"prometheus.monitoring.entr0py.de" = {
enableACME = true;
forceSSL = true;
locations."/".proxyPass = "http://[::1]:9090/";
};
"grafana.monitoring.entr0py.de" = {
enableACME = true;
forceSSL = true;
locations."/".proxyPass = "http://[::1]:${toString config.services.grafana.port}/";
};
};
};
networking.firewall.allowedTCPPorts = [ 80 443 ];
}