add singletone

Signed-off-by: Pavel Okhlopkov <[email protected]>

pkg/app/app_config.go

@@ -168,11 +168,6 @@ func (cfg *Config) SetupGlobalVars() {
 	setIfNotEmpty(&DebugKubernetesAPI, cfg.DebugConfig.KubernetesAPI)
 	setIfNotEmpty(&DebugUnixSocket, cfg.DebugConfig.UnixSocket)
 
-	fmt.Println("LOL UNIX SOCKET")
-	fmt.Println(DebugUnixSocket)
-	fmt.Println("LOL UNIX SOCKET FROM CFG")
-	fmt.Println(cfg.DebugConfig.UnixSocket)
-
 	setIfNotEmpty(&JqLibraryPath, cfg.JQConfig.LibraryPath)
 
 	setIfNotEmpty(&KubeContext, cfg.KubeConfig.ContextName)
@@ -209,6 +204,33 @@ func (cfg *Config) SetupGlobalVars() {
 	setIfNotEmpty(&ConversionWebhookSettings.ListenAddr, cfg.ValidatingWebhookConfig.ListenAddress)
 }
 
+var configInstance *Config
+
+func MustGetConfig() *Config {
+	cfg, err := GetConfig()
+	if err != nil {
+		panic(err)
+	}
+
+	return cfg
+}
+
+func GetConfig() (*Config, error) {
+	if configInstance != nil {
+		return configInstance, nil
+	}
+
+	cfg := NewConfig()
+	err := cfg.Parse()
+	if err != nil {
+		return nil, err
+	}
+
+	configInstance = cfg
+
+	return configInstance, nil
+}
+
 func setIfNotEmpty[T comparable](v *T, env T) {
 	if !isZero(env) {
 		*v = env