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2d564521c0
some options have default that are best described in prose, such as defaults that depend on the system stateVersion, defaults that are derivations specific to the surrounding context, or those where the expression is much longer and harder to understand than a simple text snippet.
164 lines
4.7 KiB
Nix
164 lines
4.7 KiB
Nix
{ config, lib, pkgs, utils, ... }:
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with lib;
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let
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cfg = config.virtualisation.cri-o;
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crioPackage = (pkgs.cri-o.override { inherit (cfg) extraPackages; });
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format = pkgs.formats.toml { };
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cfgFile = format.generate "00-default.conf" cfg.settings;
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in
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{
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imports = [
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(mkRenamedOptionModule [ "virtualisation" "cri-o" "registries" ] [ "virtualisation" "containers" "registries" "search" ])
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];
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meta = {
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maintainers = teams.podman.members;
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};
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options.virtualisation.cri-o = {
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enable = mkEnableOption "Container Runtime Interface for OCI (CRI-O)";
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storageDriver = mkOption {
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type = types.enum [ "btrfs" "overlay" "vfs" ];
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default = "overlay";
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description = "Storage driver to be used";
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};
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logLevel = mkOption {
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type = types.enum [ "trace" "debug" "info" "warn" "error" "fatal" ];
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default = "info";
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description = "Log level to be used";
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};
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pauseImage = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Override the default pause image for pod sandboxes";
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example = "k8s.gcr.io/pause:3.2";
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};
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pauseCommand = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Override the default pause command";
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example = "/pause";
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};
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runtime = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Override the default runtime";
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example = "crun";
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};
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extraPackages = mkOption {
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type = with types; listOf package;
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default = [ ];
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example = literalExpression ''
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[
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pkgs.gvisor
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]
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'';
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description = ''
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Extra packages to be installed in the CRI-O wrapper.
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'';
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};
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package = mkOption {
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type = types.package;
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default = crioPackage;
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defaultText = literalDocBook ''
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<literal>pkgs.cri-o</literal> built with
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<literal>config.${opt.extraPackages}</literal>.
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'';
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internal = true;
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description = ''
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The final CRI-O package (including extra packages).
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'';
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};
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networkDir = mkOption {
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type = types.nullOr types.path;
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default = null;
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description = "Override the network_dir option.";
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internal = true;
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};
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settings = mkOption {
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type = format.type;
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default = { };
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description = ''
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Configuration for cri-o, see
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<link xlink:href="https://github.com/cri-o/cri-o/blob/master/docs/crio.conf.5.md"/>.
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'';
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};
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};
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config = mkIf cfg.enable {
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environment.systemPackages = [ cfg.package pkgs.cri-tools ];
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environment.etc."crictl.yaml".source = utils.copyFile "${pkgs.cri-o-unwrapped.src}/crictl.yaml";
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virtualisation.cri-o.settings.crio = {
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storage_driver = cfg.storageDriver;
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image = {
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pause_image = mkIf (cfg.pauseImage != null) cfg.pauseImage;
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pause_command = mkIf (cfg.pauseCommand != null) cfg.pauseCommand;
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};
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network = {
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plugin_dirs = [ "${pkgs.cni-plugins}/bin" ];
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network_dir = mkIf (cfg.networkDir != null) cfg.networkDir;
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};
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runtime = {
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cgroup_manager = "systemd";
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log_level = cfg.logLevel;
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manage_ns_lifecycle = true;
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pinns_path = "${cfg.package}/bin/pinns";
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hooks_dir =
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optional (config.virtualisation.containers.ociSeccompBpfHook.enable)
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config.boot.kernelPackages.oci-seccomp-bpf-hook;
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default_runtime = mkIf (cfg.runtime != null) cfg.runtime;
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runtimes = mkIf (cfg.runtime != null) {
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"${cfg.runtime}" = { };
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};
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};
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};
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environment.etc."cni/net.d/10-crio-bridge.conf".source = utils.copyFile "${pkgs.cri-o-unwrapped.src}/contrib/cni/10-crio-bridge.conf";
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environment.etc."cni/net.d/99-loopback.conf".source = utils.copyFile "${pkgs.cri-o-unwrapped.src}/contrib/cni/99-loopback.conf";
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environment.etc."crio/crio.conf.d/00-default.conf".source = cfgFile;
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# Enable common /etc/containers configuration
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virtualisation.containers.enable = true;
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systemd.services.crio = {
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description = "Container Runtime Interface for OCI (CRI-O)";
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documentation = [ "https://github.com/cri-o/cri-o" ];
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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path = [ cfg.package ];
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serviceConfig = {
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Type = "notify";
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ExecStart = "${cfg.package}/bin/crio";
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ExecReload = "/bin/kill -s HUP $MAINPID";
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TasksMax = "infinity";
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LimitNOFILE = "1048576";
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LimitNPROC = "1048576";
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LimitCORE = "infinity";
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OOMScoreAdjust = "-999";
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TimeoutStartSec = "0";
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Restart = "on-abnormal";
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};
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restartTriggers = [ cfgFile ];
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};
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};
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}
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