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|
{
config,
pkgs,
lib,
...
}:
let
cfg = config.services.riemann-dash;
conf = pkgs.writeText "config.rb" ''
riemann_base = "${cfg.dataDir}"
config.store[:ws_config] = "#{riemann_base}/config/config.json"
${cfg.config}
'';
launcher = pkgs.writeScriptBin "riemann-dash" ''
#!/bin/sh
exec ${pkgs.riemann-dash}/bin/riemann-dash ${conf}
'';
in
{
options = {
services.riemann-dash = {
enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Enable the riemann-dash dashboard daemon.
'';
};
config = lib.mkOption {
type = lib.types.lines;
description = ''
Contents added to the end of the riemann-dash configuration file.
'';
};
dataDir = lib.mkOption {
type = lib.types.str;
default = "/var/riemann-dash";
description = ''
Location of the riemann-base dir. The dashboard configuration file is
is stored to this directory. The directory is created automatically on
service start, and owner is set to the riemanndash user.
'';
};
};
};
config = lib.mkIf cfg.enable {
users.groups.riemanndash.gid = config.ids.gids.riemanndash;
users.users.riemanndash = {
description = "riemann-dash daemon user";
uid = config.ids.uids.riemanndash;
group = "riemanndash";
};
systemd.tmpfiles.settings."10-riemanndash".${cfg.dataDir}.d = {
user = "riemanndash";
group = "riemanndash";
};
systemd.services.riemann-dash = {
wantedBy = [ "multi-user.target" ];
wants = [ "riemann.service" ];
after = [ "riemann.service" ];
preStart = ''
mkdir -p '${cfg.dataDir}/config'
'';
serviceConfig = {
User = "riemanndash";
ExecStart = "${launcher}/bin/riemann-dash";
};
};
};
}
|
