{ 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 "fd00:327:327:327::${host.config.clerie.monitoring.id}" ["${host.config.networking.hostName}.mon.clerie.de"]) monitoringHosts; monitoringPeers = mapAttrsToList (name: host: { allowedIPs = [ "fd00:327:327:327::${host.config.clerie.monitoring.id}/128" ]; publicKey = host.config.clerie.monitoring.pubkey; }) monitoringHosts; monitoringTargets = mapAttrsToList (name: host: "${host.config.networking.hostName}.mon.clerie.de:9100") monitoringHosts; in { imports = [ ./hardware-configuration.nix ../../configuration/common ../../configuration/proxmox-vm ]; boot.loader.grub.enable = true; boot.loader.grub.version = 2; boot.loader.grub.device = "/dev/sda"; networking.hostName = "monitoring-3"; networking.useDHCP = false; networking.interfaces.ens18.ipv4.addresses = [ { address = "192.168.10.32"; prefixLength = 24; } ]; networking.interfaces.ens19.ipv6.addresses = [ { address = "2001:638:904:ffca::7"; prefixLength = 64; } ]; networking.defaultGateway = { address = "192.168.10.1"; interface = "ens18"; }; networking.defaultGateway6 = { address = "2001:638:904:ffca::1"; interface = "ens19"; }; networking.nameservers = [ "2001:638:904:ffcc::3" "2001:638:904:ffcc::4" "141.24.40.3" "141.24.40.4" ]; networking.hosts = { "fd00:327:327:327::1" = [ "monitoring-3.mon.clerie.de" ]; } // monitoringHostsNames; networking.wireguard.enable = true; networking.wireguard.interfaces = { wg-monitoring = { ips = [ "fd00:327:327:327::1/64" ]; listenPort = 54523; peers = monitoringPeers; privateKeyFile = "/var/src/secrets/wireguard/wg-monitoring"; }; }; networking.firewall.allowedUDPPorts = [ 54523 ]; services.prometheus.exporters.node.enable = true; services.prometheus = { enable = true; listenAddress = "[::1]"; scrapeConfigs = [ { job_name = "prometheus"; scrape_interval = "20s"; scheme = "http"; static_configs = [ { targets = [ "monitoring-3.mon.clerie.de:9090" ]; } ]; } { job_name = "node-exporter"; scrape_interval = "60s"; static_configs = [ { targets = [ "monitoring-3.mon.clerie.de:9100" ] ++ monitoringTargets; } ]; } ]; }; services.grafana = { enable = true; domain = "grafana.monitoring.clerie.de"; rootUrl = "https://grafana.monitoring.clerie.de"; port = 3001; addr = "::1"; auth.anonymous.enable = true; provision = { enable = true; datasources = [ { type = "prometheus"; name = "Prometheus"; url = "http://[::1]:9090"; isDefault = true; } ]; dashboards = [ { options.path = ./dashboards; } ]; }; }; services.nginx = { enable = true; virtualHosts = { "prometheus.monitoring.clerie.de" = { enableACME = true; forceSSL = true; locations."/".proxyPass = "http://[::1]:9090/"; }; "grafana.monitoring.clerie.de" = { enableACME = true; forceSSL = true; locations."/".proxyPass = "http://[::1]:3001/"; }; }; }; networking.firewall.allowedTCPPorts = [ 80 443 ]; system.stateVersion = "21.03"; }