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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.bosun;
configFile = pkgs.writeText "bosun.conf" ''
tsdbHost = ${cfg.opentsdbHost}
httpListen = ${cfg.listenAddress}
stateFile = ${cfg.stateFile}
checkFrequency = 5m
${cfg.extraConfig}
'';
in {
options = {
services.bosun = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to run bosun.
'';
};
package = mkOption {
type = types.package;
example = literalExample "pkgs.bosun";
description = ''
bosun binary to use.
'';
};
user = mkOption {
type = types.string;
default = "bosun";
description = ''
User account under which bosun runs.
'';
};
group = mkOption {
type = types.string;
default = "bosun";
description = ''
Group account under which bosun runs.
'';
};
opentsdbHost = mkOption {
type = types.string;
default = "localhost:4242";
description = ''
Host and port of the OpenTSDB database that stores bosun data.
'';
};
listenAddress = mkOption {
type = types.string;
default = ":8070";
description = ''
The host address and port that bosun's web interface will listen on.
'';
};
stateFile = mkOption {
type = types.string;
default = "/var/lib/bosun/bosun.state";
description = ''
Path to bosun's state file.
'';
};
extraConfig = mkOption {
type = types.string;
default = "";
description = ''
Extra configuration options for Bosun. You should describe your
desired templates, alerts, macros, etc through this configuration
option.
A detailed description of the supported syntax can be found at-spi2-atk
http://bosun.org/configuration.html
'';
};
};
};
config = mkIf cfg.enable {
services.bosun.package = mkDefault pkgs.bosun;
systemd.services.bosun = {
description = "bosun metrics collector (part of Bosun)";
wantedBy = [ "multi-user.target" ];
preStart =
''
mkdir -p `dirname ${cfg.stateFile}`;
touch ${cfg.stateFile}
touch ${cfg.stateFile}.tmp
if [ "$(id -u)" = 0 ]; then
chown ${cfg.user}:${cfg.group} ${cfg.stateFile}
chown ${cfg.user}:${cfg.group} ${cfg.stateFile}.tmp
fi
'';
serviceConfig = {
PermissionsStartOnly = true;
User = cfg.user;
Group = cfg.group;
ExecStart = ''
${cfg.package}/bin/bosun -c ${configFile}
'';
};
};
users.extraUsers.bosun = {
description = "bosun user";
group = "bosun";
uid = config.ids.uids.bosun;
};
users.extraGroups.bosun.gid = config.ids.gids.bosun;
};
}
|