feat: System api (#3461)

* feat: start system api

* feat: remove auth

* feat: change gitignore

* feat: run system api

* feat: remove clear view form admin api

* feat: search instances

* feat: add instance

* fix: set primary domain

* Update .gitignore

* fix: add instance

* fix: add instance

* fix: handle errors

* fix: handle instance name

* fix: test

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

cmd/admin/start/config.go

@@ -2,6 +2,9 @@ package start
 
 import (
 	"github.com/caos/logging"
+	"github.com/caos/zitadel/internal/command"
+	"github.com/caos/zitadel/internal/config/hook"
+	"github.com/mitchellh/mapstructure"
 	"github.com/spf13/viper"
 
 	admin_es "github.com/caos/zitadel/internal/admin/repository/eventsourcing"
@@ -42,14 +45,20 @@ type Config struct {
 	InternalAuthZ   internal_authz.Config
 	SystemDefaults  systemdefaults.SystemDefaults
 	EncryptionKeys  *encryptionKeyConfig
+	DefaultInstance command.InstanceSetup
 }
 
 func MustNewConfig(v *viper.Viper) *Config {
 	config := new(Config)
 
-	err := v.Unmarshal(config)
-	logging.OnError(err).Fatal("unable to read config")
-
+	err := v.Unmarshal(config,
+		viper.DecodeHook(mapstructure.ComposeDecodeHookFunc(
+			hook.Base64ToBytesHookFunc(),
+			hook.TagToLanguageHookFunc(),
+			mapstructure.StringToTimeDurationHookFunc(),
+			mapstructure.StringToSliceHookFunc(","),
+		)),
+	)
 	err = config.Log.SetLogger()
 	logging.OnError(err).Fatal("unable to set logger")