depot/third_party/nixpkgs/nixos/modules/services/monitoring/heapster.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.heapster;
in {
options.services.heapster = {
enable = mkEnableOption "Heapster monitoring";
source = mkOption {
description = "Heapster metric source";
example = "kubernetes:https://kubernetes.default";
type = types.str;
};
sink = mkOption {
description = "Heapster metic sink";
example = "influxdb:http://localhost:8086";
type = types.str;
};
extraOpts = mkOption {
description = "Heapster extra options";
default = "";
type = types.separatedString " ";
};
package = mkPackageOption pkgs "heapster" { };
};
config = mkIf cfg.enable {
systemd.services.heapster = {
wantedBy = ["multi-user.target"];
after = ["cadvisor.service" "kube-apiserver.service"];
serviceConfig = {
ExecStart = "${cfg.package}/bin/heapster --source=${cfg.source} --sink=${cfg.sink} ${cfg.extraOpts}";
User = "heapster";
};
};
users.users.heapster = {
isSystemUser = true;
group = "heapster";
description = "Heapster user";
};
users.groups.heapster = {};
};
}