fix(modules): throw better error if module with some name does not exist

modules.nix

@@ -97,6 +97,11 @@ let
  type = types.coercedTo types.unspecified (value: [value]) (types.listOf types.unspecified);
  default = [];
  }) config.kubernetes.moduleDefinitions;
+
+ getModuleDefinition = name:
+ if hasAttr name config.kubernetes.moduleDefinitions
+ then config.kubernetes.moduleDefinitions.${name}
+ else throw ''requested kubernetes moduleDefinition with name "${name}" does not exist'';
 in {
  options.kubernetes.moduleDefinitions = mkOption {
  description = "Attribute set of module definitions";
@@ -171,10 +176,7 @@ in {
  configuration = mkOption {
  description = "Module configuration";
  type = submodule {
- imports =
- if hasAttr config.module globalConfig.kubernetes.moduleDefinitions
- then mkModuleOptions globalConfig.kubernetes.moduleDefinitions.${config.module} config
- else throw ''Kubernetes moduleDefinition "${config.module}" does not exist'';
+ imports = mkModuleOptions (getModuleDefinition config.module) config;
  };
  default = {};
  };
@@ -191,7 +193,7 @@ in {
  config = {
  kubernetes.resources = mkMerge (
  mapAttrsToList (name: module: let
- moduleDefinition = config.kubernetes.moduleDefinitions."${module.module}";
+ moduleDefinition = getModuleDefinition module.module;
  moduleConfig =
  if moduleDefinition.prefixResources
  then prefixResources (moduleToAttrs module.configuration.kubernetes.resources) module.name
@@ -205,9 +207,9 @@ in {
 
  kubernetes.customResources = mkMerge (
  mapAttrsToList (name: module: let
- moduleDefinition = config.kubernetes.moduleDefinitions."${module.module}";
+ moduleDefinition = getModuleDefinition module.module;
  moduleConfig =
- if config.kubernetes.moduleDefinitions."${module.module}".prefixResources
+ if moduleDefinition.prefixResources
  then prefixGroupResources (moduleToAttrs module.configuration.kubernetes.customResources) module.name
  else moduleToAttrs module.configuration.kubernetes.customResources;
  in