Core of image's duplication feature

internal/pkg/api/routes/v1/routes.proto

@@ -32,6 +32,13 @@ message ContainerDeleteParameter {
 	repeated string containerNames = 1;
 }
 
+// ContainerCopyParameter contains 2 inputs : first one for the source container name and second one for the duplicated container name.
+message ContainerCopyParameter {
+	repeated string containerSourceName = 1;
+	repeated string containerDestName = 1;
+
+}
+
 // ContainerImportParameter has all input for importing a container.
 message ContainerImportParameter{
 	string source = 1; // container source uri

internal/pkg/api/routes/wwapiv1/routes.pb.go

@@ -251,6 +251,16 @@ func (x *ContainerDeleteParameter) GetContainerNames() []string {
 	return nil
 }
 
+type ContainerCopyParameter struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ContainerSource string `protobuf:"bytes,1,rep,name=ContainerSource,proto3" json:"ContainerSource,omitempty"`
+	ContainerDestination string `protobuf:"bytes,1,rep,name=ContainerDestination,proto3" json:"ContainerDestination,omitempty"`
+}
+
+
 // ContainerImportParameter has all input for importing a container.
 type ContainerImportParameter struct {
 	state         protoimpl.MessageState

internal/pkg/container/build.go

@@ -37,7 +37,7 @@ func Build(name string, buildForce bool) error {
 	}
 
 	err := util.BuildFsImage(
-		"VNFS container " + name,
+		"VNFS container "+name,
 		rootfsPath,
 		imagePath,
 		[]string{"*"},

internal/pkg/container/util.go

@@ -48,14 +48,22 @@ func ListSources() ([]string, error) {
 	return ret, nil
 }
 
-func ValidSource(name string) bool {
-	fullPath := RootFsDir(name)
+func DoesContainerExists(name string) bool {
+	fullPath := ImageFile(name)
+	return util.IsFile(fullPath)
+}
 
+func DoesSourceExist(name string) bool {
+	fullPath := RootFsDir(name)
+	return util.IsDir(fullPath)
+}
+
+func ValidSource(name string) bool {
 	if !ValidName(name) {
 		return false
 	}
 
-	if !util.IsDir(fullPath) {
+	if !DoesSourceExist(name) {
 		wwlog.Verbose("Location is not a VNFS source directory: %s", name)
 		return false
 	}
@@ -73,6 +81,23 @@ func DeleteSource(name string) error {
 	return os.RemoveAll(fullPath)
 }
 
+func Duplicate(name string, destination string) error {
+	fullPathImageSource := RootFsDir(name)
+
+	wwlog.Info("Copying sources...")
+	err := ImportDirectory(fullPathImageSource, destination)
+
+	if err != nil {
+		return err
+	}
+	wwlog.Info("Building container: %s", destination)
+	err = Build(destination, true)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 /*
 Delete the image of a container
 */