Serge Bazanski | ef3aab6 | 2022-11-18 14:39:45 +0000 | [diff] [blame] | 1 | # Vendored from nixpkgs git 44ad80ab1036c5cc83ada4bfa451dac9939f2a10 |
| 2 | # Copyright (c) 2003-2023 Eelco Dolstra and the Nixpkgs/NixOS contributors |
| 3 | # SPDX-License-Identifier: MIT |
| 4 | |
| 5 | { config, lib, pkgs, ... }: |
| 6 | |
| 7 | with lib; |
| 8 | |
| 9 | let |
| 10 | top = config.services.kubernetes; |
| 11 | cfg = top.scheduler; |
| 12 | in |
| 13 | { |
| 14 | ###### interface |
| 15 | options.services.kubernetes.scheduler = with lib.types; { |
| 16 | |
| 17 | address = mkOption { |
| 18 | description = "Kubernetes scheduler listening address."; |
| 19 | default = "127.0.0.1"; |
| 20 | type = str; |
| 21 | }; |
| 22 | |
| 23 | enable = mkEnableOption "Kubernetes scheduler"; |
| 24 | |
| 25 | extraOpts = mkOption { |
| 26 | description = "Kubernetes scheduler extra command line options."; |
| 27 | default = ""; |
| 28 | type = str; |
| 29 | }; |
| 30 | |
| 31 | featureGates = mkOption { |
| 32 | description = "List set of feature gates"; |
| 33 | default = top.featureGates; |
| 34 | type = listOf str; |
| 35 | }; |
| 36 | |
| 37 | kubeconfig = top.lib.mkKubeConfigOptions "Kubernetes scheduler"; |
| 38 | |
| 39 | leaderElect = mkOption { |
| 40 | description = "Whether to start leader election before executing main loop."; |
| 41 | type = bool; |
| 42 | default = true; |
| 43 | }; |
| 44 | |
| 45 | port = mkOption { |
| 46 | description = "Kubernetes scheduler listening port."; |
| 47 | default = 10251; |
| 48 | type = int; |
| 49 | }; |
| 50 | |
| 51 | verbosity = mkOption { |
| 52 | description = '' |
| 53 | Optional glog verbosity level for logging statements. See |
| 54 | <link xlink:href="https://github.com/kubernetes/community/blob/master/contributors/devel/logging.md"/> |
| 55 | ''; |
| 56 | default = null; |
| 57 | type = nullOr int; |
| 58 | }; |
| 59 | |
| 60 | }; |
| 61 | |
| 62 | ###### implementation |
| 63 | config = mkIf cfg.enable { |
| 64 | systemd.services.kube-scheduler = { |
| 65 | description = "Kubernetes Scheduler Service"; |
| 66 | wantedBy = [ "kubernetes.target" ]; |
| 67 | after = [ "kube-apiserver.service" ]; |
| 68 | serviceConfig = { |
| 69 | Slice = "kubernetes.slice"; |
| 70 | ExecStart = ''${top.package}/bin/kube-scheduler \ |
| 71 | --address=${cfg.address} \ |
| 72 | ${optionalString (cfg.featureGates != []) |
| 73 | "--feature-gates=${concatMapStringsSep "," (feature: "${feature}=true") cfg.featureGates}"} \ |
| 74 | --kubeconfig=${top.lib.mkKubeConfig "kube-scheduler" cfg.kubeconfig} \ |
| 75 | --leader-elect=${boolToString cfg.leaderElect} \ |
| 76 | --port=${toString cfg.port} \ |
| 77 | ${optionalString (cfg.verbosity != null) "--v=${toString cfg.verbosity}"} \ |
| 78 | ${cfg.extraOpts} |
| 79 | ''; |
| 80 | WorkingDirectory = top.dataDir; |
| 81 | User = "kubernetes"; |
| 82 | Group = "kubernetes"; |
| 83 | Restart = "on-failure"; |
| 84 | RestartSec = 5; |
| 85 | }; |
| 86 | }; |
| 87 | |
| 88 | services.kubernetes.pki.certs = { |
| 89 | schedulerClient = top.lib.mkCert { |
| 90 | name = "kube-scheduler-client"; |
| 91 | CN = "system:kube-scheduler"; |
| 92 | action = "systemctl restart kube-scheduler.service"; |
| 93 | }; |
| 94 | }; |
| 95 | |
| 96 | services.kubernetes.scheduler.kubeconfig.server = mkDefault top.apiserverAddress; |
| 97 | }; |
| 98 | } |