Change the current gosdn plugin implementation from Go's internal plugin system to hashicorp's go-plugins

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

controller/interfaces/plugin/plugin.go

@@ -126,41 +126,36 @@ type LoadedPlugin struct {
 	ReattachConfig hcplugin.ReattachConfig `json:"reattatch_config,omitempty" bson:"reattatch_config"`
 }
 
-// TODO: just for testing -> needs to be changed.
 func (lp *LoadedPlugin) UnmarshalBSON(data []byte) error {
-	loadedPluginTest := new(LoadedPluginTest)
-	if err := bson.Unmarshal(data, loadedPluginTest); err != nil {
+	loadedPluginHelper := new(LoadedPluginHelper)
+	if err := bson.Unmarshal(data, loadedPluginHelper); err != nil {
 		return err
 	}
 
-	fmt.Println("LoadedPluginTest: ", loadedPluginTest)
-
-	lp.ID = loadedPluginTest.ID
-	lp.Manifest = loadedPluginTest.Manifest
-	lp.State = loadedPluginTest.State
+	lp.ID = loadedPluginHelper.ID
+	lp.Manifest = loadedPluginHelper.Manifest
+	lp.State = loadedPluginHelper.State
 	lp.ReattachConfig = hcplugin.ReattachConfig{
-		Protocol:        hcplugin.Protocol(loadedPluginTest.ReattachConfig.Protocol),
-		ProtocolVersion: loadedPluginTest.ReattachConfig.ProtocolVersion,
+		Protocol:        hcplugin.Protocol(loadedPluginHelper.ReattachConfig.Protocol),
+		ProtocolVersion: loadedPluginHelper.ReattachConfig.ProtocolVersion,
 		Addr: &net.UnixAddr{
-			Name: loadedPluginTest.ReattachConfig.Addr.Name,
-			Net:  loadedPluginTest.ReattachConfig.Addr.Net,
+			Name: loadedPluginHelper.ReattachConfig.Addr.Name,
+			Net:  loadedPluginHelper.ReattachConfig.Addr.Net,
 		},
-		Pid:  loadedPluginTest.ReattachConfig.Pid,
-		Test: loadedPluginTest.ReattachConfig.Test,
+		Pid:  loadedPluginHelper.ReattachConfig.Pid,
+		Test: loadedPluginHelper.ReattachConfig.Test,
 	}
 
 	return nil
 }
 
-// TODO: just for testing -> remove
-type LoadedPluginTest struct {
+type LoadedPluginHelper struct {
 	ID             string               `json:"id" bson:"_id"`
 	Manifest       Manifest             `json:"manifest" bson:"manifest"`
 	State          State                `json:"state,omitempty" bson:"state"`
 	ReattachConfig LoadedReattachConfig `json:"reattatch_config,omitempty" bson:"reattatch_config"`
 }
 
-// TODO: just for testing -> remove
 type LoadedReattachConfig struct {
 	Protocol        string
 	ProtocolVersion int
@@ -169,7 +164,6 @@ type LoadedReattachConfig struct {
 	Test            bool
 }
 
-// TODO: just for testing -> remove
 type LoadedAddress struct {
 	Name string
 	Net  string