Files
clan-core/lib/constraints/interface.nix
2024-11-19 10:35:13 +01:00

72 lines
1.6 KiB
Nix

{
lib,
allRoles,
moduleName,
...
}:
let
inherit (lib) mkOption types;
rolesAttrs = builtins.groupBy lib.id allRoles;
in
{
options.serviceName = mkOption {
type = types.str;
default = moduleName;
readOnly = true;
visible = false;
};
options.roles = lib.mapAttrs (
_name: _:
mkOption {
description = ''
Sub-attributes of `${_name}` are constraints for the role.
'';
default = { };
type = types.submoduleWith {
modules = [
{
options = {
max = mkOption {
type = types.nullOr types.int;
default = null;
description = ''
Maximum number of instances of this role that can be assigned to a module of this type.
'';
};
min = mkOption {
type = types.int;
default = 0;
description = ''
Minimum number of instances of this role that must at least be assigned to a module of this type.
'';
};
};
}
];
};
}
) rolesAttrs;
# The resulting assertions
options.assertions = mkOption {
visible = false;
default = { };
type = types.attrsOf (
types.submoduleWith {
modules = [
{
options = {
assertion = mkOption {
type = types.bool;
};
message = mkOption {
type = types.str;
};
};
}
];
}
);
};
}