137 lines
3.8 KiB
Nix
137 lines
3.8 KiB
Nix
{ config, lib, pkgs, ... }:
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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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# Copy configuration files to avoid having the entire sources in the system closure
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copyFile = filePath: pkgs.runCommandNoCC (builtins.unsafeDiscardStringContext (builtins.baseNameOf filePath)) {} ''
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cp ${filePath} $out
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'';
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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 = lib.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 = lib.literalExample ''
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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 = lib.mkOption {
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type = types.package;
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default = crioPackage;
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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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};
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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 = copyFile "${pkgs.cri-o-unwrapped.src}/crictl.yaml";
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environment.etc."crio/crio.conf".text = ''
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[crio]
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storage_driver = "${cfg.storageDriver}"
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[crio.image]
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${optionalString (cfg.pauseImage != null) ''pause_image = "${cfg.pauseImage}"''}
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${optionalString (cfg.pauseCommand != null) ''pause_command = "${cfg.pauseCommand}"''}
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[crio.network]
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plugin_dirs = ["${pkgs.cni-plugins}/bin/"]
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[crio.runtime]
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cgroup_manager = "systemd"
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log_level = "${cfg.logLevel}"
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manage_ns_lifecycle = true
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${optionalString (cfg.runtime != null) ''
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default_runtime = "${cfg.runtime}"
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[crio.runtime.runtimes]
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[crio.runtime.runtimes.${cfg.runtime}]
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''}
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'';
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environment.etc."cni/net.d/10-crio-bridge.conf".source = copyFile "${pkgs.cri-o-unwrapped.src}/contrib/cni/10-crio-bridge.conf";
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# Enable common /etc/containers configuration
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virtualisation.containers.enable = true;
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systemd.services.crio = {
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description = "Container Runtime Interface for OCI (CRI-O)";
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documentation = [ "https://github.com/cri-o/cri-o" ];
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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path = [ cfg.package ];
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serviceConfig = {
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Type = "notify";
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ExecStart = "${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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};
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};
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}
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