103 lines
3 KiB
Nix
103 lines
3 KiB
Nix
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{ config, lib, options, pkgs, ... }:
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with lib;
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let
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top = config.services.kubernetes;
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otop = options.services.kubernetes;
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cfg = top.proxy;
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in
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{
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imports = [
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(mkRenamedOptionModule [ "services" "kubernetes" "proxy" "address" ] ["services" "kubernetes" "proxy" "bindAddress"])
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];
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###### interface
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options.services.kubernetes.proxy = with lib.types; {
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bindAddress = mkOption {
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description = "Kubernetes proxy listening address.";
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default = "0.0.0.0";
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type = str;
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};
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enable = mkEnableOption "Kubernetes proxy";
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extraOpts = mkOption {
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description = "Kubernetes proxy extra command line options.";
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default = "";
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type = separatedString " ";
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};
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featureGates = mkOption {
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description = "Attribute set of feature gates.";
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default = top.featureGates;
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defaultText = literalExpression "config.${otop.featureGates}";
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type = attrsOf bool;
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};
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hostname = mkOption {
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description = "Kubernetes proxy hostname override.";
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default = config.networking.hostName;
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defaultText = literalExpression "config.networking.hostName";
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type = str;
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};
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kubeconfig = top.lib.mkKubeConfigOptions "Kubernetes proxy";
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verbosity = mkOption {
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description = ''
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Optional glog verbosity level for logging statements. See
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<https://github.com/kubernetes/community/blob/master/contributors/devel/logging.md>
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'';
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default = null;
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type = nullOr int;
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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systemd.services.kube-proxy = {
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description = "Kubernetes Proxy Service";
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wantedBy = [ "kubernetes.target" ];
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after = [ "kube-apiserver.service" ];
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path = with pkgs; [ iptables conntrack-tools ];
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serviceConfig = {
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Slice = "kubernetes.slice";
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ExecStart = ''${top.package}/bin/kube-proxy \
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--bind-address=${cfg.bindAddress} \
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${optionalString (top.clusterCidr!=null)
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"--cluster-cidr=${top.clusterCidr}"} \
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${optionalString (cfg.featureGates != {})
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"--feature-gates=${concatStringsSep "," (builtins.attrValues (mapAttrs (n: v: "${n}=${trivial.boolToString v}") cfg.featureGates))}"} \
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--hostname-override=${cfg.hostname} \
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--kubeconfig=${top.lib.mkKubeConfig "kube-proxy" cfg.kubeconfig} \
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${optionalString (cfg.verbosity != null) "--v=${toString cfg.verbosity}"} \
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${cfg.extraOpts}
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'';
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WorkingDirectory = top.dataDir;
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Restart = "on-failure";
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RestartSec = 5;
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};
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unitConfig = {
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StartLimitIntervalSec = 0;
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};
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};
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services.kubernetes.proxy.hostname = with config.networking; mkDefault hostName;
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services.kubernetes.pki.certs = {
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kubeProxyClient = top.lib.mkCert {
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name = "kube-proxy-client";
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CN = "system:kube-proxy";
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action = "systemctl restart kube-proxy.service";
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};
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};
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services.kubernetes.proxy.kubeconfig.server = mkDefault top.apiserverAddress;
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};
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meta.buildDocsInSandbox = false;
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}
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