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|
{ config, pkgs, lib, name, nodes, ... }:
let
cfg = config.myServices.monitoring;
myplugins = 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_maison_bbc --prefix PATH : ${lib.makeBinPath [
pkgs.curl pkgs.jq
]}
wrapProgram $out/check_mem.sh --prefix PATH : ${lib.makeBinPath [
pkgs.gnugrep pkgs.gawk pkgs.procps-ng
]}
wrapProgram $out/check_postgres_replication --prefix PATH : ${lib.makeBinPath [
pkgs.postgresql
]}
wrapProgram $out/check_redis_replication --prefix PATH : ${lib.makeBinPath [
pkgs.gnugrep pkgs.coreutils pkgs.redis
]}
wrapProgram $out/check_mysql_replication --prefix PATH : ${lib.makeBinPath [
pkgs.gnugrep pkgs.gnused pkgs.coreutils pkgs.mariadb
]}
wrapProgram $out/check_openldap_replication --prefix PATH : ${lib.makeBinPath [
pkgs.gnugrep pkgs.gnused pkgs.coreutils pkgs.openldap
]}
wrapProgram $out/check_ftp_database --prefix PATH : ${lib.makeBinPath [
pkgs.lftp
]}
wrapProgram $out/check_git --prefix PATH : ${lib.makeBinPath [
pkgs.git pkgs.openssh
]}
wrapProgram $out/check_imap_connection --prefix PATH : ${lib.makeBinPath [
pkgs.openssl
]}
wrapProgram $out/notify_maison_bbc_by_email --prefix PATH : ${lib.makeBinPath [
pkgs.mailutils pkgs.gawk
]}
wrapProgram $out/notify_by_email --prefix PATH : ${lib.makeBinPath [
pkgs.mailutils
]}
wrapProgram $out/notify_by_slack --prefix PATH : ${lib.makeBinPath [
pkgs.curl pkgs.jq
]}
'';
toObjects = pkgs.callPackage ./to_objects.nix {};
commonConfig = {
eldiron = {
processWarn = "250"; processAlert = "400";
loadWarn = "8.0"; loadAlert = "10.0";
};
backup-2 = {
processWarn = "50"; processAlert = "60";
loadWarn = "1.0"; loadAlert = "2.0";
};
monitoring-1 = {
processWarn = "50"; processAlert = "60";
loadWarn = "1.0"; loadAlert = "2.0";
};
};
masterPassiveObjects = let
otherPassiveObjects = map
(n: (pkgs.callPackage (./. + "/objects_" + n + ".nix") {}))
[ "caldance-1" "ulminfo-fr" "immae-eu" "phare" "tiboqorl-fr" ];
otherPassiveServices = lib.flatten (map (h: h.service or []) otherPassiveObjects);
otherPassiveHosts = (map (h: h.host)) otherPassiveObjects;
passiveNodes = lib.attrsets.filterAttrs (n: _: builtins.elem n ["backup-2" "eldiron"]) nodes;
toPassiveServices = map (s: s.passiveInfo.filter s // s.passiveInfo);
passiveServices = lib.flatten (lib.attrsets.mapAttrsToList
(_: n: toPassiveServices n.config.myServices.monitoring.services)
passiveNodes
);
in {
service = passiveServices ++ otherPassiveServices;
host = lib.lists.foldr
(a: b: a//b)
{}
(otherPassiveHosts ++ lib.attrsets.mapAttrsToList (_: h: h.config.myServices.monitoring.hosts) passiveNodes);
};
masterObjects = pkgs.callPackage ./objects_master.nix { inherit config; };
commonObjects = pkgs.callPackage ./objects_common.nix ({
master = cfg.master;
hostFQDN = config.hostEnv.fqdn;
hostName = name;
sudo = "/run/wrappers/bin/sudo";
} // 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;
hostFQDN = config.hostEnv.fqdn;
hostName = name;
});
in
{
options = {
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 cfg.enable {
services.duplyBackup.profiles.monitoring = {
rootDir = config.services.naemon.varDir;
};
security.sudo.extraRules = [
{
commands = [
{ command = "${pkgs.mdadm}/bin/mdadm --monitor --scan -1"; options = [ "NOPASSWD" ]; }
{ command = "${pkgs.postfix}/bin/mailq"; options = [ "NOPASSWD" ]; }
];
users = [ "naemon" ];
runAs = "root";
}
{
commands = [
{ command = "${myplugins}/check_last_file_date /backup2/*"; options = [ "NOPASSWD" ]; }
];
users = [ "naemon" ];
runAs = "ALL";
}
{
commands = [
{ command = "${myplugins}/check_postgres_replication *"; options = [ "NOPASSWD" ]; }
];
users = [ "naemon" ];
runAs = "postgres";
}
{
commands = [
{ command = "${myplugins}/check_mysql_replication *"; options = [ "NOPASSWD" ]; }
];
users = [ "naemon" ];
runAs = "mysql";
}
{
commands = [
{ command = "${myplugins}/check_openldap_replication *"; options = [ "NOPASSWD" ]; }
];
users = [ "naemon" ];
runAs = "openldap";
}
{
commands = [
{ command = "${myplugins}/check_redis_replication *"; options = [ "NOPASSWD" ]; }
];
users = [ "naemon" ];
runAs = "redis";
}
];
environment.etc."mdadm.conf" = {
enable = true;
mode = "0644";
user = "root";
text = "MAILADDR ${config.myEnv.monitoring.email}";
};
secrets.keys = [
{
dest = "naemon/id_rsa";
user = "naemon";
group = "naemon";
premissions = "0400";
text = config.myEnv.monitoring.ssh_secret_key;
}
];
# needed since extraResource is not in the closure
systemd.services.naemon.path = [ myplugins ];
services.naemon = {
enable = true;
extraConfig = ''
broker_module=${pkgs.naemon-livestatus}/lib/naemon-livestatus/livestatus.so ${config.services.naemon.runDir}/live
use_syslog=1
log_initial_states=1
date_format=iso8601
admin_email=${config.myEnv.monitoring.email}
'' + lib.optionalString (!cfg.master) ''
obsess_over_services=1
ocsp_command=notify-master
'';
extraResource = ''
$USER2$=${myplugins}
$USER200$=${config.myEnv.monitoring.status_url}
$USER201$=${config.myEnv.monitoring.status_token}
$USER202$=${config.myEnv.monitoring.http_user_password}
$USER203$=${config.secrets.fullPaths."naemon/id_rsa"}
$USER204$=${config.myEnv.monitoring.imap_login}
$USER205$=${config.myEnv.monitoring.imap_password}
$USER206$=${config.myEnv.monitoring.slack_channel}
$USER207$=${config.myEnv.monitoring.slack_url}
'';
objectDefs = toObjects commonObjects
+ toObjects hostObjects
+ lib.optionalString cfg.master (toObjects masterObjects)
+ lib.optionalString cfg.master (toObjects masterPassiveObjects);
};
};
}
|
