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|
{ config, lib, pkgs, ... }:
let
cfg = config.virtualisation.containers;
inherit (lib) mkOption types;
# Once https://github.com/NixOS/nixpkgs/pull/75584 is merged we can use the TOML generator
toTOML = name: value: pkgs.runCommandNoCC name {
nativeBuildInputs = [ pkgs.remarshal ];
value = builtins.toJSON value;
passAsFile = [ "value" ];
} ''
json2toml "$valuePath" "$out"
'';
# Copy configuration files to avoid having the entire sources in the system closure
copyFile = filePath: pkgs.runCommandNoCC (builtins.unsafeDiscardStringContext (builtins.baseNameOf filePath)) {} ''
cp ${filePath} $out
'';
in
{
meta = {
maintainers = [] ++ lib.teams.podman.members;
};
options.virtualisation.containers = {
enable =
mkOption {
type = types.bool;
default = false;
description = ''
This option enables the common /etc/containers configuration module.
'';
};
registries = {
search = mkOption {
type = types.listOf types.str;
default = [ "docker.io" "quay.io" ];
description = ''
List of repositories to search.
'';
};
insecure = mkOption {
default = [];
type = types.listOf types.str;
description = ''
List of insecure repositories.
'';
};
block = mkOption {
default = [];
type = types.listOf types.str;
description = ''
List of blocked repositories.
'';
};
};
policy = mkOption {
default = {};
type = types.attrs;
example = lib.literalExample ''
{
default = [ { type = "insecureAcceptAnything"; } ];
transports = {
docker-daemon = {
"" = [ { type = "insecureAcceptAnything"; } ];
};
};
}
'';
description = ''
Signature verification policy file.
If this option is empty the default policy file from
<literal>skopeo</literal> will be used.
'';
};
users = mkOption {
default = [];
type = types.listOf types.str;
description = ''
List of users to set up subuid/subgid mappings for.
This is a requirement for running rootless containers.
'';
};
};
config = lib.mkIf cfg.enable {
environment.etc."containers/registries.conf".source = toTOML "registries.conf" {
registries = lib.mapAttrs (n: v: { registries = v; }) cfg.registries;
};
users.extraUsers = builtins.listToAttrs (
(
builtins.foldl' (
acc: user: {
values = acc.values ++ [
{
name = user;
value = {
subUidRanges = [ { startUid = acc.offset; count = 65536; } ];
subGidRanges = [ { startGid = acc.offset; count = 65536; } ];
};
}
];
offset = acc.offset + 65536;
}
)
{ values = []; offset = 100000; } (lib.unique cfg.users)
).values
);
environment.etc."containers/policy.json".source =
if cfg.policy != {} then pkgs.writeText "policy.json" (builtins.toJSON cfg.policy)
else copyFile "${pkgs.skopeo.src}/default-policy.json";
};
}
|
