rename all remaining packages to internal/ (#12418)

This is to ensure that there are no projects
that try to import `minio/minio/pkg` into
their own repo. Any such common packages should
go to `https://github.com/minio/pkg`

internal/config/legacy.go

@@ -0,0 +1,56 @@
+// Copyright (c) 2015-2021 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package config
+
+import "github.com/minio/minio/internal/auth"
+
+//// One time migration code section
+
+// SetCredentials - One time migration code needed, for migrating from older config to new for server credentials.
+func SetCredentials(c Config, cred auth.Credentials) {
+	creds, err := auth.CreateCredentials(cred.AccessKey, cred.SecretKey)
+	if err != nil {
+		return
+	}
+	if !creds.IsValid() {
+		return
+	}
+	c[CredentialsSubSys][Default] = KVS{
+		KV{
+			Key:   AccessKey,
+			Value: cred.AccessKey,
+		},
+		KV{
+			Key:   SecretKey,
+			Value: cred.SecretKey,
+		},
+	}
+}
+
+// SetRegion - One time migration code needed, for migrating from older config to new for server Region.
+func SetRegion(c Config, name string) {
+	if name == "" {
+		return
+	}
+	c[RegionSubSys][Default] = KVS{
+		KV{
+			Key:   RegionName,
+			Value: name,
+		},
+	}
+}