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2025-12-16 19:31:33 -05:00
{
config,
lib,
pkgs,
...
}:
let
# shellCommand = cmd: (lib.concatMapStringsSep " " lib.strings.escapeShellArg cmd);
shellCommand = cmd: (builtins.concatStringsSep " " cmd);
settingsFormat = pkgs.formats.yaml { };
config_file = settingsFormat.generate "kubelet-config.yaml" config.me.kubelet.settings;
in
{
imports = [ ];
options.me = {
kubelet.enable = lib.mkOption {
type = lib.types.bool;
default = false;
example = true;
description = "Whether we want to install kubelet.";
};
kubelet.settings = lib.mkOption {
type = settingsFormat.type;
default = {
kind = "KubeletConfiguration";
apiVersion = "kubelet.config.k8s.io/v1beta1";
address = "0.0.0.0";
authentication = {
anonymous = {
enabled = false;
};
webhook = {
enabled = true;
};
x509 = {
clientCAFile = "/var/lib/kubelet/ca.crt";
};
};
authorization = {
mode = "Webhook";
};
cgroupDriver = "systemd";
containerRuntimeEndpoint = "unix:///var/run/containerd/containerd.sock";
enableServer = true;
failSwapOn = false;
maxPods = 16;
memorySwap = {
swapBehavior = "NoSwap";
};
port = 10250;
resolvConf = "/etc/resolv.conf";
registerNode = true;
runtimeRequestTimeout = "15m";
tlsCertFile = "/var/lib/kubelet/kubelet.crt";
tlsPrivateKeyFile = "/var/lib/kubelet/kubelet.key";
};
description = ''
kubelet-config.yaml
'';
};
};
config = lib.mkIf config.me.kubelet.enable {
systemd.services.kubelet = {
enable = true;
description = "Kubernetes Kubelet";
documentation = [ "https://github.com/kubernetes/kubernetes" ];
wantedBy = [ "kubernetes.target" ];
after = [ "containerd.service" ];
requires = [ "containerd.service" ];
# path = with pkgs; [
# zfs
# ];
unitConfig.DefaultDependencies = "no";
serviceConfig = {
ExecStart = (
shellCommand [
"${pkgs.kubernetes}/bin/kubelet"
# "--config=${config_file}"
"--config=${./files/kubelet-config.yaml}"
"--kubeconfig=/.persist/keys/kube/kubeconfig"
"--v=2"
]
);
Restart = "on-failure";
RestartSec = 5;
# ConfigurationDirectory = "kubernetes";
# CPUAccounting = "true";
# IPAccounting = "true";
# KillMode = "process";
# MemoryAccounting = "true";
# StartLimitInterval = 0;
# RuntimeDirectory = "kubelet";
# StateDirectory = "kubelet";
};
};
};
}