Adding meta data for app in appContext

In this patch, modified the appContext and rtc lib
by adding functions for setting and getting the meta
data associated with the apps.

Issue-ID: MULTICLOUD-1064
Signed-off-by: Rajamohan Raj <rajamohan.raj@intel.com>
Change-Id: I08f91ddda3044f172caf7b2673c069fed16c32c4

6 files changed, 160 insertions, 48 deletions

diff --git a/src/orchestrator/go.mod b/src/orchestrator/go.mod
index 47796626..29614723 100644
--- a/src/orchestrator/go.mod
+++ b/src/orchestrator/go.mod
@@ -8,20 +8,19 @@ require (
 	github.com/golang/snappy v0.0.1 // indirect
 	github.com/gorilla/handlers v1.3.0
 	github.com/gorilla/mux v1.6.2
-	github.com/json-iterator/go v1.1.8 // indirect
 	github.com/onap/multicloud-k8s/src/k8splugin v0.0.0-20191115005109-f168ebb73d8d // indirect
+	github.com/onap/multicloud-k8s/src/ncm v0.0.0-20200515060444-c77850a75eee
 	github.com/pkg/errors v0.8.1
 	github.com/sirupsen/logrus v1.4.2
 	go.etcd.io/etcd v3.3.12+incompatible
 	go.mongodb.org/mongo-driver v1.0.0
 	golang.org/x/net v0.0.0-20200301022130-244492dfa37a
-	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e // indirect
 	golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 // indirect
 	google.golang.org/genproto v0.0.0-20200305110556-506484158171 // indirect
 	google.golang.org/grpc v1.27.1
+	gopkg.in/yaml.v3 v3.0.0-20200506231410-2ff61e1afc86
 	k8s.io/apimachinery v0.0.0-20190831074630-461753078381
 	k8s.io/helm v2.14.3+incompatible
-	k8s.io/klog v1.0.0 // indirect
 )
 
 replace (
diff --git a/src/orchestrator/pkg/appcontext/appcontext.go b/src/orchestrator/pkg/appcontext/appcontext.go
index 8f7841ac..00e0241a 100644
--- a/src/orchestrator/pkg/appcontext/appcontext.go
+++ b/src/orchestrator/pkg/appcontext/appcontext.go
@@ -22,7 +22,7 @@ import (
 
 	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/rtcontext"
 	pkgerrors "github.com/pkg/errors"
-	//"log"
+
 	log "github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/logutils"
 )
 
@@ -32,6 +32,16 @@ type AppContext struct {
 	rtc      rtcontext.Rtcontext
 }
 
+// CompositeAppMeta consists of projectName, CompositeAppName,
+// CompositeAppVersion, ReleaseName. This shall be used for
+// instantiation of a compositeApp
+type CompositeAppMeta struct {
+	Project      string `json:"Project"`
+	CompositeApp string `json:"CompositeApp"`
+	Version      string `json:"Version"`
+	Release      string `json:"Release"`
+}
+
 // Init app context
 func (ac *AppContext) InitAppContext() (interface{}, error) {
 	ac.rtcObj = rtcontext.RunTimeContext{}
@@ -46,15 +56,25 @@ func (ac *AppContext) LoadAppContext(cid interface{}) (interface{}, error) {
 	return ac.rtc.RtcLoad(cid)
 }
 
-// Create a new context and returns the handle
+// CreateCompositeApp method returns composite app handle as interface.
 func (ac *AppContext) CreateCompositeApp() (interface{}, error) {
 	h, err := ac.rtc.RtcCreate()
 	if err != nil {
 		return nil, err
 	}
+	log.Info(":: CreateCompositeApp ::", log.Fields{"CompositeAppHandle": h})
 	return h, nil
 }
 
+// AddCompositeAppMeta adds the meta data associated with a composite app
+func (ac *AppContext) AddCompositeAppMeta(meta interface{}) error {
+	err := ac.rtc.RtcAddMeta(meta)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 // Deletes the entire context
 func (ac *AppContext) DeleteCompositeApp() error {
 	h, err := ac.rtc.RtcGet()
@@ -69,7 +89,7 @@ func (ac *AppContext) DeleteCompositeApp() error {
 }
 
 //Returns the handles for a given composite app context
-func (ac *AppContext) GetCompositeApp() (interface{}, error) {
+func (ac *AppContext) GetCompositeAppHandle() (interface{}, error) {
 	h, err := ac.rtc.RtcGet()
 	if err != nil {
 		return nil, err
@@ -83,7 +103,7 @@ func (ac *AppContext) AddApp(handle interface{}, appname string) (interface{}, e
 	if err != nil {
 		return nil, err
 	}
-	log.Info(":: Added app handle ::", log.Fields{"AppHandle":h})
+	log.Info(":: Added app handle ::", log.Fields{"AppHandle": h})
 	return h, nil
 }
 
@@ -126,7 +146,7 @@ func (ac *AppContext) AddCluster(handle interface{}, clustername string) (interf
 	if err != nil {
 		return nil, err
 	}
-	log.Info(":: Added cluster handle ::", log.Fields{"ClusterHandler":h})
+	log.Info(":: Added cluster handle ::", log.Fields{"ClusterHandler": h})
 	return h, nil
 }
 
@@ -202,7 +222,7 @@ func (ac *AppContext) AddResource(handle interface{}, resname string, value []by
 	if err != nil {
 		return nil, err
 	}
-	log.Info(":: Added resource handle ::", log.Fields{"ResourceHandler":h})
+	log.Info(":: Added resource handle ::", log.Fields{"ResourceHandler": h})
 
 	return h, nil
 }
@@ -260,7 +280,7 @@ func (ac *AppContext) AddInstruction(handle interface{}, level string, insttype
 	if err != nil {
 		return nil, err
 	}
-	log.Info(":: Added instruction handle ::", log.Fields{"InstructionHandler":h})
+	log.Info(":: Added instruction handle ::", log.Fields{"InstructionHandler": h})
 	return h, nil
 }
 
@@ -332,3 +352,24 @@ func (ac *AppContext) GetValue(handle interface{}) (interface{}, error) {
 	}
 	return v, nil
 }
+
+// GetCompositeAppMeta returns the meta data associated with the compositeApp
+// Its return type is CompositeAppMeta
+func (ac *AppContext) GetCompositeAppMeta() (CompositeAppMeta, error) {
+	mi, err := ac.rtcObj.RtcGetMeta()
+
+	if err != nil {
+		return CompositeAppMeta{}, pkgerrors.Errorf("Failed to get compositeApp meta")
+	}
+	datamap, ok := mi.(map[string]interface{})
+	if ok == false {
+		return CompositeAppMeta{}, pkgerrors.Errorf("Failed to cast meta interface to compositeApp meta")
+	}
+
+	p := fmt.Sprintf("%v", datamap["Project"])
+	ca := fmt.Sprintf("%v", datamap["CompositeApp"])
+	v := fmt.Sprintf("%v", datamap["Version"])
+	rn := fmt.Sprintf("%v", datamap["Release"])
+
+	return CompositeAppMeta{Project: p, CompositeApp: ca, Version: v, Release: rn}, nil
+}
diff --git a/src/orchestrator/pkg/appcontext/appcontext_test.go b/src/orchestrator/pkg/appcontext/appcontext_test.go
index e539ed7a..07a13d0b 100644
--- a/src/orchestrator/pkg/appcontext/appcontext_test.go
+++ b/src/orchestrator/pkg/appcontext/appcontext_test.go
@@ -29,6 +29,13 @@ type MockRunTimeContext struct {
 	Err   error
 }
 
+type MockCompositeAppMeta struct {
+	Project      string
+	CompositeApp string
+	Version      string
+	Release      string
+}
+
 func (c *MockRunTimeContext) RtcCreate() (interface{}, error) {
 	var key string = "/context/9345674458787728/"
 
@@ -40,6 +47,16 @@ func (c *MockRunTimeContext) RtcCreate() (interface{}, error) {
 
 }
 
+func (c *MockRunTimeContext) RtcAddMeta(meta interface{}) error {
+	var cid string = "/context/9345674458787728/"
+	key := cid + "meta" + "/"
+	if c.Items == nil {
+		c.Items = make(map[string]interface{})
+	}
+	c.Items[key] = meta
+	return nil
+}
+
 func (c *MockRunTimeContext) RtcInit() (interface{}, error) {
 	var id string = "9345674458787728"
 	return id, c.Err
@@ -55,6 +72,11 @@ func (c *MockRunTimeContext) RtcGet() (interface{}, error) {
 	return key, c.Err
 }
 
+func (c *MockRunTimeContext) RtcGetMeta() (interface{}, error) {
+	meta := CompositeAppMeta{Project: "pn", CompositeApp: "ca", Version: "v", Release: "rName"}
+	return meta, nil
+}
+
 func (c *MockRunTimeContext) RtcAddLevel(handle interface{}, level string, value string) (interface{}, error) {
 	str := fmt.Sprintf("%v", handle) + level + "/" + value + "/"
 	c.Items[str] = value
@@ -122,15 +144,18 @@ func TestCreateCompositeApp(t *testing.T) {
 		label         string
 		mockRtcontext *MockRunTimeContext
 		expectedError string
+		meta          interface{}
 	}{
 		{
 			label:         "Success case",
 			mockRtcontext: &MockRunTimeContext{},
+			meta:          interface{}(MockCompositeAppMeta{Project: "Testproject", CompositeApp: "TestCompApp", Version: "CompAppVersion", Release: "TestRelease"}),
 		},
 		{
 			label:         "Create returns error case",
 			mockRtcontext: &MockRunTimeContext{Err: pkgerrors.Errorf("Error creating run time context:")},
 			expectedError: "Error creating run time context:",
+			meta:          interface{}(MockCompositeAppMeta{Project: "Testproject", CompositeApp: "TestCompApp", Version: "CompAppVersion", Release: "TestRelease"}),
 		},
 	}
 
@@ -169,7 +194,7 @@ func TestGetCompositeApp(t *testing.T) {
 	for _, testCase := range testCases {
 		t.Run(testCase.label, func(t *testing.T) {
 			ac.rtc = testCase.mockRtcontext
-			_, err := ac.GetCompositeApp()
+			_, err := ac.GetCompositeAppHandle()
 			if err != nil {
 				if !strings.Contains(string(err.Error()), testCase.expectedError) {
 					t.Fatalf("Method returned an error (%s)", err)
@@ -219,17 +244,20 @@ func TestAddApp(t *testing.T) {
 		mockRtcontext *MockRunTimeContext
 		key           interface{}
 		expectedError string
+		meta          interface{}
 	}{
 		{
 			label:         "Success case",
 			mockRtcontext: &MockRunTimeContext{},
 			key:           "/context/9345674458787728/",
+			meta:          interface{}(MockCompositeAppMeta{Project: "Testproject", CompositeApp: "TestCompApp", Version: "CompAppVersion", Release: "TestRelease"}),
 		},
 		{
 			label:         "Error case for adding app",
 			mockRtcontext: &MockRunTimeContext{Err: pkgerrors.Errorf("Error adding app to run time context:")},
 			key:           "/context/9345674458787728/",
 			expectedError: "Error adding app to run time context:",
+			meta:          interface{}(MockCompositeAppMeta{Project: "Testproject", CompositeApp: "TestCompApp", Version: "CompAppVersion", Release: "TestRelease"}),
 		},
 	}
 
diff --git a/src/orchestrator/pkg/module/instantiation.go b/src/orchestrator/pkg/module/instantiation.go
index 58706ef6..32e84c34 100644
--- a/src/orchestrator/pkg/module/instantiation.go
+++ b/src/orchestrator/pkg/module/instantiation.go
@@ -111,7 +111,7 @@ func findGenericPlacementIntent(p, ca, v, di string) (string, error) {
 	}
 	for _, eachMap := range iList.ListOfIntents {
 		if gi, found := eachMap[GenericPlacementIntentName]; found {
-			log.Info(":: Name of the generic-placement-intent ::", log.Fields{"GenPlmtIntent":gi})
+			log.Info(":: Name of the generic-placement-intent ::", log.Fields{"GenPlmtIntent": gi})
 			return gi, err
 		}
 	}
@@ -126,8 +126,7 @@ func findGenericPlacementIntent(p, ca, v, di string) (string, error) {
 //It takes in arguments - appName, project, compositeAppName, releaseName, compositeProfileName, array of override values
 func GetSortedTemplateForApp(appName, p, ca, v, rName, cp string, overrideValues []OverrideValues) ([]helm.KubernetesResourceTemplate, error) {
 
-
-	log.Info(":: Processing App ::", log.Fields{"appName":appName})
+	log.Info(":: Processing App ::", log.Fields{"appName": appName})
 
 	var sortedTemplates []helm.KubernetesResourceTemplate
 
@@ -140,7 +139,7 @@ func GetSortedTemplateForApp(appName, p, ca, v, rName, cp string, overrideValues
 		return sortedTemplates, pkgerrors.Wrap(err, "Fail to convert to byte array")
 	}
 
-	log.Info(":: Got the app content.. ::", log.Fields{"appName":appName})
+	log.Info(":: Got the app content.. ::", log.Fields{"appName": appName})
 
 	appPC, err := NewAppProfileClient().GetAppProfileContentByApp(p, ca, v, cp, appName)
 	if err != nil {
@@ -151,7 +150,7 @@ func GetSortedTemplateForApp(appName, p, ca, v, rName, cp string, overrideValues
 		return sortedTemplates, pkgerrors.Wrap(err, "Fail to convert to byte array")
 	}
 
-	log.Info(":: Got the app Profile content .. ::", log.Fields{"appName":appName})
+	log.Info(":: Got the app Profile content .. ::", log.Fields{"appName": appName})
 
 	overrideValuesOfApp := getOverrideValuesByAppName(overrideValues, appName)
 	//Convert override values from map to array of strings of the following format
@@ -168,7 +167,7 @@ func GetSortedTemplateForApp(appName, p, ca, v, rName, cp string, overrideValues
 		appProfileContent, overrideValuesOfAppStr,
 		appName)
 
-	log.Info(":: Total no. of sorted templates ::", log.Fields{"len(sortedTemplates):":len(sortedTemplates)})
+	log.Info(":: Total no. of sorted templates ::", log.Fields{"len(sortedTemplates):": len(sortedTemplates)})
 
 	return sortedTemplates, err
 }
@@ -193,20 +192,20 @@ func getResources(st []helm.KubernetesResourceTemplate) ([]resource, error) {
 
 		resources = append(resources, resource{name: n, filecontent: yamlFile})
 
-		log.Info(":: Added resource into resource-order ::", log.Fields{"ResourceName":n})
+		log.Info(":: Added resource into resource-order ::", log.Fields{"ResourceName": n})
 	}
 	return resources, nil
 }
 
 func addResourcesToCluster(ct appcontext.AppContext, ch interface{}, resources []resource, resourceOrder []string) error {
-	for _, resource := range resources {
 
+	for _, resource := range resources {
 		resourceOrder = append(resourceOrder, resource.name)
 		_, err := ct.AddResource(ch, resource.name, resource.filecontent)
 		if err != nil {
 			cleanuperr := ct.DeleteCompositeApp()
 			if cleanuperr != nil {
-				log.Info(":: Error Cleaning up AppContext after add resource failure ::", log.Fields{"Resource":resource.name, "Error":cleanuperr.Error})
+				log.Info(":: Error Cleaning up AppContext after add resource failure ::", log.Fields{"Resource": resource.name, "Error": cleanuperr.Error})
 			}
 			return pkgerrors.Wrapf(err, "Error adding resource ::%s to AppContext", resource.name)
 		}
@@ -214,7 +213,7 @@ func addResourcesToCluster(ct appcontext.AppContext, ch interface{}, resources [
 		if err != nil {
 			cleanuperr := ct.DeleteCompositeApp()
 			if cleanuperr != nil {
-				log.Info(":: Error Cleaning up AppContext after add instruction failure ::", log.Fields{"Resource":resource.name, "Error":cleanuperr.Error})
+				log.Info(":: Error Cleaning up AppContext after add instruction failure ::", log.Fields{"Resource": resource.name, "Error": cleanuperr.Error})
 			}
 			return pkgerrors.Wrapf(err, "Error adding instruction for resource ::%s to AppContext", resource.name)
 		}
@@ -231,7 +230,7 @@ func addClustersToAppContext(l gpic.Clusters, ct appcontext.AppContext, appHandl
 		if err != nil {
 			cleanuperr := ct.DeleteCompositeApp()
 			if cleanuperr != nil {
-				log.Info(":: Error Cleaning up AppContext after add cluster failure ::", log.Fields{"cluster-provider":p, "cluster-name":n, "Error":cleanuperr.Error})
+				log.Info(":: Error Cleaning up AppContext after add cluster failure ::", log.Fields{"cluster-provider": p, "cluster-name": n, "Error": cleanuperr.Error})
 			}
 			return pkgerrors.Wrapf(err, "Error adding Cluster(provider::%s and name::%s) to AppContext", p, n)
 		}
@@ -259,7 +258,7 @@ func verifyResources(l gpic.Clusters, ct appcontext.AppContext, resources []reso
 			if err != nil {
 				return pkgerrors.Wrapf(err, "Error getting resoure handle for resource :: %s, app:: %s, cluster :: %s", appName, res.name, cn)
 			}
-			log.Info(":: GetResourceHandle ::", log.Fields{"ResourceHandler":rh, "appName":appName, "Cluster": cn, "Resource":res.name})
+			log.Info(":: GetResourceHandle ::", log.Fields{"ResourceHandler": rh, "appName": appName, "Cluster": cn, "Resource": res.name})
 
 		}
 
@@ -288,8 +287,8 @@ func (c InstantiationClient) Instantiate(p string, ca string, v string, di strin
 		return err
 	}
 
-	log.Info(":: The name of the GenPlacIntent ::", log.Fields{"GenPlmtIntent":gIntent})
-	log.Info(":: DeploymentIntentGroup, ReleaseName, CompositeProfile ::", log.Fields{"dIGrp":dIGrp.MetaData.Name, "releaseName":rName, "cp":cp})
+	log.Info(":: The name of the GenPlacIntent ::", log.Fields{"GenPlmtIntent": gIntent})
+	log.Info(":: DeploymentIntentGroup, ReleaseName, CompositeProfile ::", log.Fields{"dIGrp": dIGrp.MetaData.Name, "releaseName": rName, "cp": cp})
 
 	allApps, err := NewAppClient().GetApps(p, ca, v)
 	if err != nil {
@@ -304,8 +303,16 @@ func (c InstantiationClient) Instantiate(p string, ca string, v string, di strin
 	}
 	compositeHandle, err := context.CreateCompositeApp()
 	if err != nil {
-		return pkgerrors.Wrap(err, "Error creating AppContext")
+		return pkgerrors.Wrap(err, "Error creating CompositeApp handle")
 	}
+	err = context.AddCompositeAppMeta(appcontext.CompositeAppMeta{Project: p, CompositeApp: ca, Version: v, Release: rName})
+	if err != nil {
+		return pkgerrors.Wrap(err, "Error Adding CompositeAppMeta")
+	}
+
+	m, err := context.GetCompositeAppMeta()
+
+	log.Info(":: The meta data stored in the runtime context :: ", log.Fields{"Project": m.Project, "CompositeApp": m.CompositeApp, "Version": m.Version, "Release": m.Release})
 
 	var appOrder []string
 
@@ -318,7 +325,7 @@ func (c InstantiationClient) Instantiate(p string, ca string, v string, di strin
 			return pkgerrors.Wrap(err, "Unable to get the sorted templates for app")
 		}
 
-		log.Info(":: Resolved all the templates ::", log.Fields{"appName":eachApp.Metadata.Name, "SortedTemplate":sortedTemplates})
+		log.Info(":: Resolved all the templates ::", log.Fields{"appName": eachApp.Metadata.Name, "SortedTemplate": sortedTemplates})
 
 		resources, err := getResources(sortedTemplates)
 		if err != nil {
@@ -334,7 +341,7 @@ func (c InstantiationClient) Instantiate(p string, ca string, v string, di strin
 			return pkgerrors.Wrap(err, "Unable to get the intents resolved for app")
 		}
 
-		log.Info(":: listOfClusters ::", log.Fields{"listOfClusters":listOfClusters})
+		log.Info(":: listOfClusters ::", log.Fields{"listOfClusters": listOfClusters})
 
 		//BEGIN: storing into etcd
 		// Add an app to the app context
@@ -342,17 +349,17 @@ func (c InstantiationClient) Instantiate(p string, ca string, v string, di strin
 		if err != nil {
 			cleanuperr := context.DeleteCompositeApp()
 			if cleanuperr != nil {
-				log.Info(":: Error Cleaning up AppContext compositeApp failure ::", log.Fields{"Error":cleanuperr.Error(), "AppName":eachApp.Metadata.Name})
+				log.Info(":: Error Cleaning up AppContext compositeApp failure ::", log.Fields{"Error": cleanuperr.Error(), "AppName": eachApp.Metadata.Name})
 			}
 			return pkgerrors.Wrap(err, "Error adding App to AppContext")
 		}
 		err = addClustersToAppContext(listOfClusters, context, apphandle, resources)
 		if err != nil {
-			log.Info(":: Error while adding cluster and resources to app ::", log.Fields{"Error":err.Error(), "AppName":eachApp.Metadata.Name})
+			log.Info(":: Error while adding cluster and resources to app ::", log.Fields{"Error": err.Error(), "AppName": eachApp.Metadata.Name})
 		}
 		err = verifyResources(listOfClusters, context, resources, eachApp.Metadata.Name)
 		if err != nil {
-			log.Info(":: Error while verifying resources in app ::", log.Fields{"Error":err.Error(), "AppName":eachApp.Metadata.Name})
+			log.Info(":: Error while verifying resources in app ::", log.Fields{"Error": err.Error(), "AppName": eachApp.Metadata.Name})
 		}
 
 	}
@@ -373,12 +380,12 @@ func (c InstantiationClient) Instantiate(p string, ca string, v string, di strin
 		cleanuperr := context.DeleteCompositeApp()
 		if cleanuperr != nil {
 
-			log.Info(":: Error Cleaning up AppContext while saving context in the db for GPIntent ::", log.Fields{"Error":cleanuperr.Error(), "GPIntent":gIntent, "DeploymentIntentGroup":di, "CompositeApp":ca, "CompositeAppVersion":v, "Project":p})
+			log.Info(":: Error Cleaning up AppContext while saving context in the db for GPIntent ::", log.Fields{"Error": cleanuperr.Error(), "GPIntent": gIntent, "DeploymentIntentGroup": di, "CompositeApp": ca, "CompositeAppVersion": v, "Project": p})
 		}
 		return pkgerrors.Wrap(err, "Error adding AppContext to DB")
 	}
 	// END:: save the context in the orchestrator db record
 
-	log.Info(":: Done with instantiation... ::", log.Fields{"CompositeAppName":ca})
+	log.Info(":: Done with instantiation... ::", log.Fields{"CompositeAppName": ca})
 	return err
 }
diff --git a/src/orchestrator/pkg/rtcontext/rtcontext.go b/src/orchestrator/pkg/rtcontext/rtcontext.go
index 1835251a..5610ea58 100644
--- a/src/orchestrator/pkg/rtcontext/rtcontext.go
+++ b/src/orchestrator/pkg/rtcontext/rtcontext.go
@@ -29,13 +29,15 @@ const maxrand = 0x7fffffffffffffff
 const prefix string = "/context/"
 
 type RunTimeContext struct {
-	cid interface{}
+	cid  interface{}
+	meta interface{}
 }
 
 type Rtcontext interface {
 	RtcInit() (interface{}, error)
 	RtcLoad(interface{}) (interface{}, error)
 	RtcCreate() (interface{}, error)
+	RtcAddMeta(meta interface{}) error
 	RtcGet() (interface{}, error)
 	RtcAddLevel(handle interface{}, level string, value string) (interface{}, error)
 	RtcAddResource(handle interface{}, resname string, value interface{}) (interface{}, error)
@@ -45,6 +47,7 @@ type Rtcontext interface {
 	RtcGetHandles(handle interface{}) ([]interface{}, error)
 	RtcGetValue(handle interface{}, value interface{}) error
 	RtcUpdateValue(handle interface{}, value interface{}) error
+	RtcGetMeta() (interface{}, error)
 }
 
 //Intialize context by assiging a new id
@@ -76,7 +79,6 @@ func (rtc *RunTimeContext) RtcLoad(id interface{}) (interface{}, error) {
 	return handle, nil
 }
 
-//Create context using the id and prefix
 func (rtc *RunTimeContext) RtcCreate() (interface{}, error) {
 	cid := fmt.Sprintf("%v", rtc.cid)
 	if cid == "" {
@@ -94,6 +96,26 @@ func (rtc *RunTimeContext) RtcCreate() (interface{}, error) {
 	return rtc.cid, nil
 }
 
+//RtcAddMeta is used for saving meta data of appContext into ETCD.
+func (rtc *RunTimeContext) RtcAddMeta(meta interface{}) error {
+	cid := fmt.Sprintf("%v", rtc.cid)
+	if cid == "" {
+		return pkgerrors.Errorf("Error, context not intialized")
+	}
+	if !strings.HasPrefix(cid, prefix) {
+		return pkgerrors.Errorf("Not a valid run time context prefix")
+	}
+
+	rtc.meta = meta
+	k := cid + "meta" + "/"
+	err := contextdb.Db.Put(k, rtc.meta)
+	if err != nil {
+		return pkgerrors.Errorf("Error saving metadata in run time context: %s", err.Error())
+	}
+
+	return nil
+}
+
 //Get the root handle
 func (rtc *RunTimeContext) RtcGet() (interface{}, error) {
 	str := fmt.Sprintf("%v", rtc.cid)
@@ -113,6 +135,23 @@ func (rtc *RunTimeContext) RtcGet() (interface{}, error) {
 	return rtc.cid, nil
 }
 
+// RtcGetMeta method fetches the meta data of the rtc object and returns it.
+func (rtc *RunTimeContext) RtcGetMeta() (interface{}, error) {
+	str := fmt.Sprintf("%v", rtc.cid)
+	if !strings.HasPrefix(str, prefix) {
+		return nil, pkgerrors.Errorf("Not a valid run time context")
+	}
+
+	var value interface{}
+	k := str + "meta" + "/"
+	err := contextdb.Db.Get(k, &value)
+	if err != nil {
+		return nil, pkgerrors.Errorf("Error getting run time context metadata: %s", err.Error())
+	}
+	return value, nil
+
+}
+
 //Add a new level at a given handle and return the new handle
 func (rtc *RunTimeContext) RtcAddLevel(handle interface{}, level string, value string) (interface{}, error) {
 	str := fmt.Sprintf("%v", handle)
@@ -177,7 +216,6 @@ func (rtc *RunTimeContext) RtcAddInstruction(handle interface{}, level string, i
 	if value == nil {
 		return nil, pkgerrors.Errorf("Not a valid run time context instruction value")
 	}
-
 	k := str + level + "/" + "instruction" + "/" + insttype + "/"
 	err := contextdb.Db.Put(k, fmt.Sprintf("%v", value))
 	if err != nil {
@@ -194,7 +232,6 @@ func (rtc *RunTimeContext) RtcDeletePair(handle interface{}) error {
 	if !strings.HasPrefix(str, sid) {
 		return pkgerrors.Errorf("Not a valid run time context handle")
 	}
-
 	err := contextdb.Db.Delete(str)
 	if err != nil {
 		return pkgerrors.Errorf("Error deleting run time context pair: %s", err.Error())
diff --git a/src/orchestrator/pkg/rtcontext/rtcontext_test.go b/src/orchestrator/pkg/rtcontext/rtcontext_test.go
index eedbeb82..49e83748 100644
--- a/src/orchestrator/pkg/rtcontext/rtcontext_test.go
+++ b/src/orchestrator/pkg/rtcontext/rtcontext_test.go
@@ -112,7 +112,7 @@ func TestRtcInit(t *testing.T) {
 }
 
 func TestRtcLoad(t *testing.T) {
-	var rtc = RunTimeContext{""}
+	var rtc = RunTimeContext{"", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -147,7 +147,7 @@ func TestRtcLoad(t *testing.T) {
 }
 
 func TestRtcCreate(t *testing.T) {
-	var rtc = RunTimeContext{"/context/5345674458787728/"}
+	var rtc = RunTimeContext{"/context/5345674458787728/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -179,7 +179,7 @@ func TestRtcCreate(t *testing.T) {
 }
 
 func TestRtcGet(t *testing.T) {
-	var rtc = RunTimeContext{"/context/5345674458787728/"}
+	var rtc = RunTimeContext{"/context/5345674458787728/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -240,7 +240,7 @@ func TestRtcGet(t *testing.T) {
 }
 
 func TestRtcAddLevel(t *testing.T) {
-	var rtc = RunTimeContext{"/context/3528435435454354/"}
+	var rtc = RunTimeContext{"/context/3528435435454354/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -304,7 +304,7 @@ func TestRtcAddLevel(t *testing.T) {
 }
 
 func TestRtcAddResource(t *testing.T) {
-	var rtc = RunTimeContext{"/context/3528435435454354/"}
+	var rtc = RunTimeContext{"/context/3528435435454354/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -368,7 +368,7 @@ func TestRtcAddResource(t *testing.T) {
 }
 
 func TestRtcAddInstruction(t *testing.T) {
-	var rtc = RunTimeContext{"/context/3528435435454354/"}
+	var rtc = RunTimeContext{"/context/3528435435454354/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -447,7 +447,7 @@ func TestRtcAddInstruction(t *testing.T) {
 }
 
 func TestRtcGetHandles(t *testing.T) {
-	var rtc = RunTimeContext{"/context/5345674458787728/"}
+	var rtc = RunTimeContext{"/context/5345674458787728/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -490,7 +490,7 @@ func TestRtcGetHandles(t *testing.T) {
 }
 
 func TestRtcGetValue(t *testing.T) {
-	var rtc = RunTimeContext{"/context/5345674458787728/"}
+	var rtc = RunTimeContext{"/context/5345674458787728/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -534,7 +534,7 @@ func TestRtcGetValue(t *testing.T) {
 }
 
 func TestRtcUpdateValue(t *testing.T) {
-	var rtc = RunTimeContext{"/context/5345674458787728/"}
+	var rtc = RunTimeContext{"/context/5345674458787728/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -581,7 +581,7 @@ func TestRtcUpdateValue(t *testing.T) {
 }
 
 func TestRtcDeletePair(t *testing.T) {
-	var rtc = RunTimeContext{"/context/5345674458787728/"}
+	var rtc = RunTimeContext{"/context/5345674458787728/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb
@@ -621,7 +621,7 @@ func TestRtcDeletePair(t *testing.T) {
 }
 
 func TestRtcDeletePrefix(t *testing.T) {
-	var rtc = RunTimeContext{"/context/5345674458787728/"}
+	var rtc = RunTimeContext{"/context/5345674458787728/", ""}
 	testCases := []struct {
 		label         string
 		mockContextDb *MockContextDb