-{ config, myconfig, pkgs, lib, ... }:
+{ config, pkgs, lib, name, nodes, ... }:
let
- myplugins = pkgs.runCommand "buildplugins" {
+ cfg = config.myServices.monitoring;
+ activatedPlugins = [ "memory" "command" "bandwidth" ]
+ ++ (if cfg.master then (masterObjects.activatedPlugins or []) else [])
+ ++ (if cfg.master then (lib.flatten (map (v: v.activatedPlugins or []) otherObjects)) else [])
+ ++ (hostObjects.activatedPlugins or [])
+ ++ (if cfg.master then ["notify-primary"] else ["notify-secondary"]);
+ allPluginsConfig = import ./myplugins.nix {
+ inherit pkgs lib config;
+ sudo = "/run/wrappers/bin/sudo";
+ };
+ mypluginsConfig = lib.getAttrs activatedPlugins allPluginsConfig;
+ myplugins = let
+ mypluginsChunk = builtins.concatStringsSep "\n" (lib.attrsets.mapAttrsToList (k: v: v.chunk or "") mypluginsConfig);
+ in pkgs.runCommand "buildplugins" {
buildInputs = [ pkgs.makeWrapper pkgs.perl ];
} ''
mkdir $out
- cp ${./plugins}/* $out/
- patchShebangs $out
- wrapProgram $out/check_command --prefix PATH : ${config.security.wrapperDir}
- wrapProgram $out/send_nrdp.sh --prefix PATH : ${lib.makeBinPath [
- pkgs.curl pkgs.jq
- ]}
- wrapProgram $out/check_mem.sh --prefix PATH : ${lib.makeBinPath [
- pkgs.gnugrep pkgs.gawk pkgs.procps-ng
- ]}
+ ${mypluginsChunk}
'';
+ toObjects = pkgs.callPackage ./to_objects.nix {};
+ commonConfig = {
+ dilion = {
+ processWarn = "250"; processAlert = "400";
+ loadWarn = "1.0"; loadAlert = "1.2";
+ interface = "eth0";
+ };
+ eldiron = {
+ processWarn = "250"; processAlert = "400";
+ loadWarn = "1.0"; loadAlert = "1.2";
+ interface = "eth0";
+ };
+ backup-2 = {
+ processWarn = "60"; processAlert = "70";
+ loadWarn = "1.0"; loadAlert = "2.0";
+ interface = "ens3";
+ };
+ monitoring-1 = {
+ processWarn = "50"; processAlert = "60";
+ loadWarn = "4.0"; loadAlert = "6.0";
+ load15Warn = "1.0"; load15Alert = "2.0";
+ interface = "ens3";
+ };
+ quatresaisons = {
+ processWarn = "250"; processAlert = "400";
+ loadWarn = "1.0"; loadAlert = "1.2";
+ interface = "eth0";
+ };
+ };
+ externalObjects = lib.genAttrs [ "tiboqorl-fr" ]
+ (n: pkgs.callPackage (./. + "/objects_" + n + ".nix") { inherit emailCheck; });
+ masterPassiveObjects = let
+ passiveNodes = lib.attrsets.filterAttrs (n: _: builtins.elem n ["backup-2" "eldiron" "quatresaisons" "dilion"]) nodes;
+ toPassiveServices = map (s: s.passiveInfo.filter s // s.passiveInfo);
+ passiveServices = lib.flatten (lib.attrsets.mapAttrsToList
+ (_: n: toPassiveServices n.config.myServices.monitoring.services)
+ passiveNodes
+ ) ++ lib.flatten (lib.attrsets.mapAttrsToList
+ (_: n: toPassiveServices n.service)
+ externalObjects);
+ in {
+ service = passiveServices;
+ host = lib.lists.foldr
+ (a: b: a//b)
+ {}
+ (lib.attrsets.mapAttrsToList (_: h: h.config.myServices.monitoring.hosts) passiveNodes
+ ++ lib.attrsets.mapAttrsToList (_: n: n.host) externalObjects);
+ };
+ emailCheck = host: hostFQDN: let
+ allCfg = config.myEnv.monitoring.email_check;
+ cfg = allCfg."${host}";
+ reverseTargets = builtins.attrNames (lib.attrsets.filterAttrs (k: v: builtins.elem host v.targets) allCfg);
+ to_email = cfg': host':
+ let sep = if lib.strings.hasInfix "+" cfg'.mail_address then "_" else "+";
+ in "${cfg'.mail_address}${sep}${host'}@${cfg'.mail_domain}";
+ mails_to_send = builtins.concatStringsSep "," (map (n: to_email allCfg."${n}" host) cfg.targets);
+ mails_to_receive = builtins.concatStringsSep "," (map (n: "${to_email cfg n}:${n}") reverseTargets);
+ command = if cfg.local
+ then
+ [ "check_emails_local" "/var/lib/naemon/checks/email" mails_to_send mails_to_receive ]
+ else
+ [ "check_emails" cfg.login cfg.port mails_to_send mails_to_receive ];
+ in
+ {
+ service_description = "${hostFQDN} email service is active";
+ use = "mail-service";
+ host_name = hostFQDN;
+ servicegroups = "webstatus-email";
+ check_command = command;
+ };
+ otherObjects = map
+ (n: (pkgs.callPackage (./. + "/objects_" + n + ".nix") { inherit emailCheck; }))
+ [ "ulminfo-fr" "phare" "eban" ];
+ masterObjects = pkgs.callPackage ./objects_master.nix { inherit config; };
+ commonObjects = pkgs.callPackage ./objects_common.nix ({
+ master = cfg.master;
+ hostFQDN = config.hostEnv.fqdn;
+ hostName = name;
+ inherit mypluginsConfig;
+ } // builtins.getAttr name commonConfig);
+ hostObjects =
+ let
+ specific_file = ./. + "/objects_" + name + ".nix";
+ in
+ lib.attrsets.optionalAttrs
+ (builtins.pathExists specific_file)
+ (pkgs.callPackage specific_file {
+ inherit config nodes emailCheck;
+ hostFQDN = config.hostEnv.fqdn;
+ hostName = name;
+ });
+ objectsFiles = lib.mapAttrs' (name: value: lib.nameValuePair
+ "=/${name}/objects.conf" { alias = pkgs.writeText "objects.conf" (toObjects value); }
+ ) externalObjects;
in
{
options = {
- myServices.monitoring.enable = lib.mkOption {
- type = lib.types.bool;
- default = false;
- description = ''
- Whether to enable monitoring.
- '';
+ myServices.monitoring = {
+ enable = lib.mkOption {
+ type = lib.types.bool;
+ default = false;
+ description = ''
+ Whether to enable monitoring.
+ '';
+ };
+ master = lib.mkOption {
+ type = lib.types.bool;
+ default = false;
+ description = ''
+ This instance is the master instance
+ '';
+ };
+ hosts = lib.mkOption {
+ readOnly = true;
+ description = "Hosts list for this host";
+ default = (commonObjects.host or {}) // (hostObjects.host or {});
+ };
+ services = lib.mkOption {
+ readOnly = true;
+ description = "Services list for this host";
+ default = commonObjects.service ++ hostObjects.service;
+ };
};
};
- config = lib.mkIf config.myServices.monitoring.enable {
- services.backup.profiles.monitoring = {
+ config = lib.mkIf cfg.enable {
+ services.nginx = lib.mkIf config.myServices.status.enable {
+ virtualHosts."status.immae.eu".locations = objectsFiles // {
+ "=/common/immae.cfg" = {
+ alias = pkgs.writeText "immae.cfg" ''
+ # put me for instance in /etc/naemon/module-conf.d/immae.cfg
+ # Make sure that you have include_dir=module-conf.d in
+ # naemon.cfg
+ log_initial_states=1
+ date_format=iso8601
+ admin_email=${config.myEnv.monitoring.email}
+ obsess_over_services=1
+ ocsp_command=notify-master
+ '';
+ };
+ "=/common/resource.cfg" = {
+ alias = pkgs.writeText "resource.cfg" ''
+ # Resource.cfg file
+ # Replace this with path to monitoring plugins
+ $USER1$=@@COMMON_PLUGINS@@
+ # Replace this with a path to scripts from
+ # https://git.immae.eu/cgit/perso/Immae/Config/Nix.git/tree/modules/private/monitoring/plugins
+ $USER2$=@@IMMAE_PLUGINS@@
+ $USER200$=https://status.immae.eu/
+ $USER201$=@@TOKEN@@
+ '';
+ };
+ };
+ };
+
+ services.duplyBackup.profiles.monitoring = {
rootDir = config.services.naemon.varDir;
};
- security.sudo.extraRules = [
+ security.sudo.extraRules = let
+ pluginsSudo = lib.lists.remove null (lib.attrsets.mapAttrsToList (k: v:
+ if (v ? sudo)
+ then ({ users = [ "naemon" ]; } // (v.sudo myplugins))
+ else null) mypluginsConfig);
+ in [
{
commands = [
{ command = "${pkgs.mdadm}/bin/mdadm --monitor --scan -1"; options = [ "NOPASSWD" ]; }
users = [ "naemon" ];
runAs = "root";
}
- ];
+ ] ++ pluginsSudo;
environment.etc."mdadm.conf" = {
enable = true;
mode = "0644";
user = "root";
- text = "MAILADDR ${myconfig.env.monitoring.email}";
+ text = "MAILADDR ${config.myEnv.monitoring.email}";
};
+ secrets.keys = [
+ {
+ dest = "naemon/id_rsa";
+ user = "naemon";
+ group = "naemon";
+ permissions = "0400";
+ text = config.myEnv.monitoring.ssh_secret_key;
+ }
+ ] ++ lib.optionals cfg.master (
+ lib.mapAttrsToList (k: v:
+ {
+ dest = "${k}_access_key";
+ user = "naemon";
+ group = "naemon";
+ permissions = "0400";
+ text = ''
+ export AWS_ACCESS_KEY_ID="${v.accessKeyId}"
+ export AWS_SECRET_ACCESS_KEY="${v.secretAccessKey}"
+ export BASE_URL="${v.remote "immae-eldiron"}"
+ '';
+ }) config.myEnv.backup.remotes
+ );
# needed since extraResource is not in the closure
systemd.services.naemon.path = [ myplugins ];
services.naemon = {
enable = true;
extraConfig = ''
- broker_module=${pkgs.naemon-livestatus}/lib/naemon-livestatus/livestatus.so ${config.services.naemon.runDir}/live
use_syslog=1
log_initial_states=1
date_format=iso8601
- admin_email=${myconfig.env.monitoring.email}
-
+ admin_email=${config.myEnv.monitoring.email}
+ '' + lib.optionalString (!cfg.master) ''
obsess_over_services=1
ocsp_command=notify-master
+ '' + lib.optionalString (cfg.master) ''
+ broker_module=${pkgs.naemon-livestatus}/lib/naemon-livestatus/livestatus.so ${config.services.naemon.runDir}/live
+ broker_module=${pkgs.status_engine.module}/lib/status-engine/naemon/statusengine-${pkgs.naemon.status_engine_version}.o use_service_perfdata=1 use_process_data=0 use_system_command_data=0 use_external_command_data=0 use_flapping_data=0 use_program_status_data=0 use_notification_data=0 use_contact_status_data=0 use_contact_notification_data=0 use_event_handler_data=0 use_object_data=0
'';
- extraResource = ''
+ extraResource = let
+ resources = lib.mapAttrsToList (k: v: v.resources or {}) mypluginsConfig;
+ joined = lib.zipAttrsWith (n: v: if builtins.length (lib.unique v) == 1 then builtins.head v else abort "Non-unique resources names") resources;
+ joinedStr = builtins.concatStringsSep "\n" (lib.mapAttrsToList (k: v: "$" + "${k}$=${v}") joined);
+ in ''
$USER2$=${myplugins}
- $USER200$=${myconfig.env.monitoring.status_url}
- $USER201$=${myconfig.env.monitoring.status_token}
+ ${joinedStr}
'';
- objectDefs = builtins.readFile ./conf/local_services.cfg
- + builtins.readFile ./conf/timeperiods.cfg
- + builtins.readFile ./conf/services.cfg
- + builtins.readFile ./conf/contacts.cfg
- + builtins.readFile ./conf/hosts.cfg
- + ''
- define command {
- command_line ${myplugins}/send_nrdp.sh -u "$USER200$" -t "$USER201$" -H "$HOSTADDRESS$" -s "$SERVICEDESC$" -S "$SERVICESTATEID$" -o "$SERVICEOUTPUT$"
- command_name notify-master
- }
- define service {
- service_description No mdadm array is degraded
- use local-service
- check_command check_command_output!${pkgs.mdadm}/bin/mdadm --monitor --scan -1!^$!-s 0 -r root
- }
-
- define service {
- service_description mailq is empty
- use local-service
- check_command check_mailq
- }
-
- define command {
- command_name check_mailq
- command_line $USER1$/check_mailq -s -w 1 -c 2
- }
-
- define service {
- name local-service
- use generic-service
- host_name eldiron.immae.eu
- check_interval 5
- max_check_attempts 4
- register 0
- retry_interval 1
- }
- define host {
- host_name eldiron.immae.eu
- alias eldiron.immae.eu
- address eldiron.immae.eu
- use linux-server
- }
- '';
+ objectDefs = toObjects commonObjects
+ + toObjects hostObjects
+ + lib.optionalString cfg.master (toObjects masterObjects)
+ + lib.optionalString cfg.master (toObjects masterPassiveObjects)
+ + lib.optionalString cfg.master (builtins.concatStringsSep "\n" (map toObjects otherObjects));
};
};
}
projects / perso / Immae / Config / Nix.git / blobdiff