[VOL-2694] Use package specific logger instance in all log statements

Change-Id: Id216765f347be95872b820b63133daef7d2a7bbb
diff --git a/internal/pkg/ofagent/changeEvent.go b/internal/pkg/ofagent/changeEvent.go
index f661ab7..dc3aa39 100644
--- a/internal/pkg/ofagent/changeEvent.go
+++ b/internal/pkg/ofagent/changeEvent.go
@@ -123,5 +123,5 @@
 		}
 	}
 
-	log.Debug("handle-change-event-finsihed")
+	logger.Debug("handle-change-event-finsihed")
 }
diff --git a/internal/pkg/ofagent/common.go b/internal/pkg/ofagent/common.go
new file mode 100644
index 0000000..66bbbcf
--- /dev/null
+++ b/internal/pkg/ofagent/common.go
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Package ofagent Common Logger initialization
+package ofagent
+
+import (
+	"github.com/opencord/voltha-lib-go/v3/pkg/log"
+)
+
+var logger log.Logger
+
+func init() {
+	// Setup this package so that it's log level can be modified at run time
+	var err error
+	logger, err = log.AddPackage(log.JSON, log.ErrorLevel, log.Fields{"pkg": "ofagent"})
+	if err != nil {
+		panic(err)
+	}
+}
diff --git a/internal/pkg/ofagent/ofagent.go b/internal/pkg/ofagent/ofagent.go
index 8bb0b94..1d225b2 100644
--- a/internal/pkg/ofagent/ofagent.go
+++ b/internal/pkg/ofagent/ofagent.go
@@ -28,8 +28,6 @@
 	"time"
 )
 
-var logger, _ = log.AddPackage(log.JSON, log.DebugLevel, nil)
-
 type ofaEvent byte
 type ofaState byte
 
@@ -203,7 +201,7 @@
 					state = ofaStateConnecting
 					go func() {
 						if err := ofa.establishConnectionToVoltha(p); err != nil {
-							log.Errorw("voltha-connection-failed", log.Fields{"error": err})
+							logger.Errorw("voltha-connection-failed", log.Fields{"error": err})
 							panic(err)
 						}
 					}()