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nixos/containerd: improve zfs support

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This commit is contained in:
Jörg Thalheim 2021-06-01 08:26:42 +02:00
parent 4542b54abd
commit f2e4cb7f20
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GPG Key ID: B3F5D81B0C6967C4
1 changed files with 38 additions and 7 deletions
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45
nixos/modules/virtualisation/containerd.nix
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@ -1,10 +1,20 @@
{ pkgs, lib, config, ... }:
let
cfg = config.virtualisation.containerd;
containerdConfigChecked = pkgs.runCommand "containerd-config-checked.toml" { nativeBuildInputs = [pkgs.containerd]; } ''
containerd -c ${cfg.configFile} config dump >/dev/null
ln -s ${cfg.configFile} $out
configFile = if cfg.configFile == null then
settingsFormat.generate "containerd.toml" cfg.settings
else
cfg.configFile;
containerdConfigChecked = pkgs.runCommand "containerd-config-checked.toml" {
nativeBuildInputs = [ pkgs.containerd ];
} ''
containerd -c ${configFile} config dump >/dev/null
ln -s ${configFile} $out
'';
settingsFormat = pkgs.formats.toml {};
in
{
@ -13,10 +23,21 @@ in
configFile = lib.mkOption {
default = null;
description = "path to containerd config file";
description = ''
Path to containerd config file.
Setting this option will override any configuration applied by the settings option.
'';
type = nullOr path;
};
settings = lib.mkOption {
type = settingsFormat.type;
default = {};
description = ''
Verbatim lines to add to containerd.toml
'';
};
args = lib.mkOption {
default = {};
description = "extra args to append to the containerd cmdline";
@ -25,9 +46,19 @@ in
};
config = lib.mkIf cfg.enable {
virtualisation.containerd.args.config = lib.mkIf (cfg.configFile != null) (toString containerdConfigChecked);
warnings = lib.optional (cfg.configFile != null) ''
`virtualisation.containerd.configFile` is deprecated. use `virtualisation.containerd.settings` instead.
'';
environment.systemPackages = [pkgs.containerd];
virtualisation.containerd = {
args.config = toString containerdConfigChecked;
settings = {
plugins.cri.containerd.snapshotter = lib.mkIf config.boot.zfs.enabled "zfs";
plugins.cri.cni.bin_dir = lib.mkDefault "${pkgs.cni-plugins}/bin";
};
};
environment.systemPackages = [ pkgs.containerd ];
systemd.services.containerd = {
description = "containerd - container runtime";
@ -37,7 +68,7 @@ in
containerd
runc
iptables
];
] ++ lib.optional config.boot.zfs.enabled config.boot.zfs.package;
serviceConfig = {
ExecStart = ''${pkgs.containerd}/bin/containerd ${lib.concatStringsSep " " (lib.cli.toGNUCommandLine {} cfg.args)}'';
Delegate = "yes";