Fix: remove deprecated rand (openyurtio#1320)

Signed-off-by: fengshunli <1171313930@qq.com>

Makefile

@@ -196,3 +196,11 @@ GOBIN=$(PROJECT_DIR)/bin go install $(2) ;\
 rm -rf $$TMP_DIR ;\
 }
 endef
+
+
+fmt:
+	go fmt ./...
+	find . -name '*.go' | grep -Ev 'vendor|thrift_gen' | xargs goimports -w
+
+vet:
+	GO111MODULE=${GO_MODULE} go list ./... | grep -v "vendor" | xargs go vet

cmd/yurt-controller-manager/controller-manager.go

@@ -38,7 +38,8 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UnixNano())
+	newRand := rand.New(rand.NewSource(time.Now().UnixNano()))
+	newRand.Seed(time.Now().UnixNano())
 
 	command := app.NewControllerManagerCommand()
 

cmd/yurt-manager/yurt-manager.go

@@ -30,7 +30,8 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UnixNano())
+	newRand := rand.New(rand.NewSource(time.Now().UnixNano()))
+	newRand.Seed(time.Now().UnixNano())
 
 	command := app.NewYurtManagerCommand()
 

cmd/yurt-node-servant/node-servant.go

@@ -35,7 +35,8 @@ import (
 // running on specific node, do convert/revert job
 // node-servant convert/revert join/reset, yurtcluster operator shall start a k8s job to run this.
 func main() {
-	rand.Seed(time.Now().UnixNano())
+	newRand := rand.New(rand.NewSource(time.Now().UnixNano()))
+	newRand.Seed(time.Now().UnixNano())
 
 	version := fmt.Sprintf("%#v", projectinfo.Get())
 	rootCmd := &cobra.Command{

cmd/yurthub/yurthub.go

@@ -27,7 +27,9 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UnixNano())
+	newRand := rand.New(rand.NewSource(time.Now().UnixNano()))
+	newRand.Seed(time.Now().UnixNano())
+
 	cmd := app.NewCmdStartYurtHub(server.SetupSignalContext())
 	cmd.Flags().AddGoFlagSet(flag.CommandLine)
 	if err := cmd.Execute(); err != nil {