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|
{ config, pkgs, ... }:
with pkgs.lib;
let
cfg = config.services.dd-agent;
datadog-conf = pkgs.runCommand "datadog.conf" {} ''
sed -e 's|^api_key:|api_key: ${cfg.api_key}|' ${optionalString (cfg.hostname != null)
"-e 's|^#hostname: mymachine.mydomain|hostname: ${cfg.hostname}|'"
} ${pkgs.dd-agent}/etc/dd-agent/datadog.conf.example > $out
'';
in {
options.services.dd-agent = {
enable = mkOption {
description = "Whether to enable the dd-agent montioring service";
default = false;
type = types.bool;
};
# !!! This gets stored in the store (world-readable), wish we had https://github.com/NixOS/nix/issues/8
api_key = mkOption {
description = "The Datadog API key to associate the agent with your account";
example = "ae0aa6a8f08efa988ba0a17578f009ab";
type = types.uniq types.string;
};
hostname = mkOption {
description = "The hostname to show in the Datadog dashboard (optional)";
default = null;
example = "mymachine.mydomain";
type = types.uniq (types.nullOr types.string);
};
};
config = mkIf cfg.enable {
environment.etc = [ { source = datadog-conf; target = "dd-agent/datadog.conf"; } ];
systemd.services.dd-agent = {
description = "Datadog agent monitor";
path = [ pkgs.sysstat pkgs.procps ];
wantedBy = [ "multi-user.target" ];
serviceConfig.ExecStart = "${pkgs.dd-agent}/bin/dd-agent foreground";
restartTriggers = [ pkgs.dd-agent ];
};
};
}
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