potential fix for zap logger rotation issue

Author: paulyufan2

cni/ipam/plugin/main.go

@@ -10,7 +10,6 @@ import (
 	"github.com/Azure/azure-container-networking/cni"
 	"github.com/Azure/azure-container-networking/cni/ipam"
 	"github.com/Azure/azure-container-networking/common"
-	"github.com/Azure/azure-container-networking/log"
 )
 
 const name = "azure-vnet-ipam"
@@ -23,17 +22,6 @@ func main() {
 	var config common.PluginConfig
 	config.Version = version
 
-	logDirectory := "" // Sets the current location as log directory
-
-	log.SetName(name)
-	log.SetLevel(log.LevelInfo)
-	if err := log.SetTargetLogDirectory(log.TargetLogfile, logDirectory); err != nil {
-		fmt.Printf("Failed to setup cni logging: %v\n", err)
-		return
-	}
-
-	defer log.Close()
-
 	ipamPlugin, err := ipam.NewPlugin(name, &config)
 	if err != nil {
 		fmt.Printf("Failed to create IPAM plugin, err:%v.\n", err)

cni/ipam/pluginv6/main.go

@@ -10,7 +10,6 @@ import (
 	"github.com/Azure/azure-container-networking/cni"
 	"github.com/Azure/azure-container-networking/cni/ipam"
 	"github.com/Azure/azure-container-networking/common"
-	"github.com/Azure/azure-container-networking/log"
 )
 
 const name = "azure-vnet-ipamv6"
@@ -23,17 +22,6 @@ func main() {
 	var config common.PluginConfig
 	config.Version = version
 
-	logDirectory := "" // Sets the current location as log directory
-
-	log.SetName(name)
-	log.SetLevel(log.LevelInfo)
-	if err := log.SetTargetLogDirectory(log.TargetLogfile, logDirectory); err != nil {
-		fmt.Printf("Failed to setup cni logging: %v\n", err)
-		return
-	}
-
-	defer log.Close()
-
 	ipamPlugin, err := ipam.NewPlugin(name, &config)
 	if err != nil {
 		fmt.Printf("Failed to create IPAM plugin, err:%v.\n", err)

cni/network/plugin/main.go

@@ -17,7 +17,6 @@ import (
 	zaplog "github.com/Azure/azure-container-networking/cni/log"
 	"github.com/Azure/azure-container-networking/cni/network"
 	"github.com/Azure/azure-container-networking/common"
-	"github.com/Azure/azure-container-networking/log"
 	"github.com/Azure/azure-container-networking/nns"
 	"github.com/Azure/azure-container-networking/platform"
 	"github.com/Azure/azure-container-networking/store"
@@ -295,15 +294,6 @@ func main() {
 		os.Exit(0)
 	}
 
-	log.SetName(name)
-	log.SetLevel(log.LevelInfo)
-	if err := log.SetTargetLogDirectory(log.TargetLogfile, ""); err != nil {
-		fmt.Printf("Failed to setup cni logging: %v\n", err)
-		return
-	}
-
-	defer log.Close()
-
 	if rootExecute() != nil {
 		os.Exit(1)
 	}