nixpkgs/upstart-jobs/nagios/default.nix

98 lines
2.3 KiB
Nix
Raw Normal View History

{config, pkgs}:
let
nagiosUser = "nagios";
nagiosGroup = "nogroup";
nagiosState = "/var/lib/nagios";
nagiosLogDir = "/var/log/nagios";
nagiosObjectDefs = [
./timeperiods.cfg
./host-templates.cfg
./service-templates.cfg
./commands.cfg
] ++ config.services.nagios.objectDefs;
nagiosObjectDefsDir = pkgs.runCommand "nagios-objects" {inherit nagiosObjectDefs;}
"ensureDir $out; ln -s $nagiosObjectDefs $out/";
nagiosCfgFile = pkgs.writeText "nagios.cfg" "
# Paths for state and logs.
log_file=${nagiosLogDir}/current
log_archive_path=${nagiosLogDir}/archive
status_file=${nagiosState}/status.dat
object_cache_file=${nagiosState}/objects.cache
comment_file=${nagiosState}/comment.dat
downtime_file=${nagiosState}/downtime.dat
temp_file=${nagiosState}/nagios.tmp
lock_file=/var/run/nagios.lock # Not used I think.
state_retention_file=${nagiosState}/retention.dat
# Configuration files.
#resource_file=resource.cfg
cfg_dir=${nagiosObjectDefsDir}
# Uid/gid that the daemon runs under.
nagios_user=${nagiosUser}
nagios_group=${nagiosGroup}
# Misc. options.
illegal_macro_output_chars=`~$&|'\"<>
retain_state_information=1
";
in
{
name = "nagios";
users = [
{ name = nagiosUser;
uid = (import ../../system/ids.nix).uids.nagios;
description = "Nagios monitoring daemon";
home = nagiosState;
}
];
extraPath = [pkgs.nagios];
# This isn't needed, it's just so that the user can type "nagiostats
# -c /etc/nagios.cfg".
extraEtc = [
{ source = nagiosCfgFile;
target = "nagios.cfg";
}
];
# Run `nagios -v' to check the validity of the configuration file so
# that a nixos-rebuild fails *before* we kill the running Nagios
# daemon.
buildHook = "${pkgs.nagios}/bin/nagios -v ${nagiosCfgFile}";
job = "
description \"Nagios monitoring daemon\"
start on network-interfaces/started
stop on network-interfaces/stop
start script
mkdir -m 0755 -p ${nagiosState} ${nagiosLogDir}
chown ${nagiosUser} ${nagiosState} ${nagiosLogDir}
end script
respawn
script
for i in ${toString config.services.nagios.plugins}; do
export PATH=$i/bin:$i/sbin:$i/libexec:$PATH
done
exec ${pkgs.nagios}/bin/nagios ${nagiosCfgFile}
end script
";
}