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/logger/targets.go

@@ -0,0 +1,55 @@
+// 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 logger
+
+// Target is the entity that we will receive
+// a single log entry and Send it to the log target
+//   e.g. Send the log to a http server
+type Target interface {
+	String() string
+	Endpoint() string
+	Validate() error
+	Send(entry interface{}, errKind string) error
+}
+
+// Targets is the set of enabled loggers
+var Targets = []Target{}
+
+// AuditTargets is the list of enabled audit loggers
+var AuditTargets = []Target{}
+
+// AddAuditTarget adds a new audit logger target to the
+// list of enabled loggers
+func AddAuditTarget(t Target) error {
+	if err := t.Validate(); err != nil {
+		return err
+	}
+
+	AuditTargets = append(AuditTargets, t)
+	return nil
+}
+
+// AddTarget adds a new logger target to the
+// list of enabled loggers
+func AddTarget(t Target) error {
+	if err := t.Validate(); err != nil {
+		return err
+	}
+	Targets = append(Targets, t)
+	return nil
+}