move config validation into a separate function

extensions/settings/pkg/config/defaults/defaultconfig.go

@@ -1,7 +1,6 @@
 package defaults
 
 import (
-	"log"
 	"path"
 	"strings"
 
@@ -11,10 +10,8 @@ import (
 
 func FullDefaultConfig() *config.Config {
 	cfg := DefaultConfig()
-
 	EnsureDefaults(cfg)
 	Sanitize(cfg)
-
 	return cfg
 }
 
@@ -95,8 +92,6 @@ func EnsureDefaults(cfg *config.Config) {
 
 	if cfg.Metadata.MachineAuthAPIKey == "" && cfg.Commons != nil && cfg.Commons.MachineAuthAPIKey != "" {
 		cfg.MachineAuthAPIKey = cfg.Commons.MachineAuthAPIKey
-	} else if cfg.MachineAuthAPIKey == "" {
-		log.Fatalf("machine auth api key is not set up properly, bailing out (%s)", cfg.Service.Name)
 	}
 }
 

extensions/settings/pkg/config/parser/parse.go

@@ -28,5 +28,9 @@ func ParseConfig(cfg *config.Config) error {
 
 	defaults.Sanitize(cfg)
 
+	return Validate(cfg)
+}
+
+func Validate(cfg *config.Config) error {
 	return nil
 }