UCA-20 OSS JAX-RS 2 Client

UCA-20 - Getting issue details... STATUS

Analysis

vFirewall Demo Sequence of Events

All the events during a VF creation so we can understand all the orchestration steps at a granular REST level.

Passwords in /testsuite/properties/integration_robot_properties.py

Variables

IAD region

key	name	value
	service	c54316d8-464e-4967-bece-8c2b2f458b66
	VNF	6229cdee-10f6-4ec4-a5e0-0593154e6d83
	VfModule	5a08199b-4161-4181-9b2d-da29f6df1410

Prerequisites

Seq	Name	Source	Target	Actor	REST write	REST read
	License Model					http://{{sdc_ip}}:8080/onboarding-api/v1.0/vendor-license-models *FD0FBEDB1AB64D1CA1A4E266862CAEE7*
	Licence Key Group					where id is from LM above http://{{sdc_ip}}:8080/onboarding-api/v1.0/vendor-license-models/FD0FBEDB1AB64D1CA1A4E266862CAEE7/license-key-groups
	Entitlement Pool					where id is from LM above http://{{sdc_ip}}:8080/onboarding-api/v1.0/vendor-license-models/FD0FBEDB1AB64D1CA1A4E266862CAEE7/entitlement-pools
	Feature Group					where id is from LM above http://{{sdc_ip}}:8080/onboarding-api/v1.0/vendor-license-models/FD0FBEDB1AB64D1CA1A4E266862CAEE7/feature-groups
	License Aggreement					where id is from LM above http://{{sdc_ip}}:8080/onboarding-api/v1.0/vendor-license-models/FD0FBEDB1AB64D1CA1A4E266862CAEE7/license-agreements
	VSP					http://{{sdc_ip}}:8080/onboarding-api/v1.0/vendor-software-products get index by LM id "vendorId": "FD0FBEDB1AB64D1CA1A4E266862CAEE7"

Config

Seq

Name

Source

Target

Actor

REST write

REST read

create customer

robot

aai

./demo.sh init

PUT

https://{{aai_ip}}:8443/aai/v8/business/customers/customer/ONAP-User

{ "global-customer-id": "ONAP-User",
"service-subscriptions": {
"service-subscription": [{
"relationship-list": {
"relationship": [{
"related-to": "tenant",
"relationship-data": [{
"relationship-key": "cloud-region.cloud-owner",
"relationship-value": "Rackspace"
}, {
"relationship-key": "cloud-region.cloud-region-id",
"relationship-value": "DFW"
}, {
"relationship-key": "tenant.tenant-id",
"relationship-value": "{{tenant_id}}"
}] }]},
"service-type": "vFW"
}] },
"subscriber-name": "ONAP-User",
"subscriber-type": "INFRA"}

https://{{aai_ip}}:8443/aai/v8/business/customers/customer

{ "global-customer-id": "Demonstration","subscriber-name": "Demonstration",

create service model

robot

aai

./demo.sh init

PUT aai/v8/service-design-and-creation/services

{   "service-id": "${UUID}",
   "service-description": "${service_type}"}

https://{{aai_ip}}:8443/aai/v8/service-design-and-creation/models

"model-name-version-id": "dcb40136-9cec-45be-b080-2a36b31c2f06",
"model-type": "service", "model-name": "vfservice",
"model-id": "43d59b70-8829-4a50-a3f7-d261b220ceef"

Service Deployment

Seq

Name

Source

Target

Actor

REST write

REST read

deploy service model

vid

aai

demo user

9023f592-5c64-4a5b-9333-3287fdc9d304

create service instance

vid

aai

demo user

Input:

InstanceName=DemoInstance
Subscriber=Demonstration
ServiceType=vFW

Output:
SIID=c54316d8-464e-4967-bece-8c2b2f458b66

07/27/17 12:10:39 HTTP Status: OK (200)
{
  "request": {
    "requestId": "96dcaa23-88cb-41ac-bf8c-e1e5bb423232",
    "startTime": "Wed, 26 Jul 2017 16:10:26 GMT",
    "requestScope": "service",
    "requestType": "createInstance",
    "requestDetails": {
      "modelInfo": {
        "modelCustomizationName": null,
        "modelInvariantId": "43d59b70-8829-4a50-a3f7-d261b220ceef",
        "modelType": "service",
        "modelNameVersionId": "dcb40136-9cec-45be-b080-2a36b31c2f06",
        "modelName": "vfservice",
        "modelVersion": "1.0"
      },
      "requestInfo": {
        "billingAccountNumber": null,
        "callbackUrl": null,
        "correlator": null,
        "orderNumber": null,
        "productFamilyId": null,
        "orderVersion": null,
        "source": "VID",
        "instanceName": "DemoInstance",
        "suppressRollback": false
      },
      "relatedInstanceList": null,
      "subscriberInfo": {
        "globalSubscriberId": "Demonstration",
        "subscriberName": null
      },
      "cloudConfiguration": null,
      "requestParameters": {
        "subscriptionServiceType": "vFW",
        "userParams": []
      }
    },
    "instanceReferences": {
      "serviceInstanceId": "cd2eb659-2463-461b-9c3b-3bf03619c167",
      "serviceInstanceName": "DemoInstance",
      "vnfInstanceId": null,
      "vnfInstanceName": null,
      "vfModuleInstanceId": null,
      "vfModuleInstanceName": null,
      "volumeGroupInstanceId": null,
      "volumeGroupInstanceName": null,
      "networkInstanceId": null,
      "networkInstanceName": null
    },
    "requestStatus": {
      "requestState": "COMPLETE",
      "statusMessage": "Service Instance has been created successfully.",
      "percentProgress": 100,
      "finishTime": "Wed, 26 Jul 2017 16:10:31 GMT"
    }
  }
}

07/27/17 12:10:28 HTTP Status: Accepted (202)
{
  "requestReferences": {
    "instanceId": "cd2eb659-2463-461b-9c3b-3bf03619c167",
    "requestId": "96dcaa23-88cb-41ac-bf8c-e1e5bb423232"
  }
}

https://{{aai_ip}}:8443/aai/v8/business/customers/customer/Demonstration/service-subscriptions/service-subscription/vFW

https://{{aai_ip}}:8443/aai/v8/business/customers/customer/Demonstration/service-subscriptions/service-subscription/vFW/service-instances/

{ "service-instance": [{
"service-instance-id": "c54316d8-464e-4967-bece-8c2b2f458b66",
"service-instance-name": "DemoInstance",
"persona-model-id": "2a01ef12-9bb1-4205-9941-a506cbae99c9",

VNF Creation

Seq

Name

Source

Target

Actor

REST write

REST read

Add VNF to

Service Instance

vid

sdc

demo user

07/27/17 12:15:13 HTTP Status: OK (200)
{
  "request": {
    "requestId": "e867be64-e725-4e29-8448-c9eceb51ce3c",
    "startTime": "Wed, 26 Jul 2017 16:15:02 GMT",
    "requestScope": "vnf",
    "requestType": "createInstance",
    "requestDetails": {
      "modelInfo": {
        "modelCustomizationName": "vsp 1",
        "modelInvariantId": "27036887-1053-48e8-a55e-3d2a7264a658",
        "modelType": "vnf",
        "modelNameVersionId": "b63a0b42-a151-460a-9bb2-ba469948622b",
        "modelName": "vsp",
        "modelVersion": "1.0"
      },
      "requestInfo": {
        "billingAccountNumber": null,
        "callbackUrl": null,
        "correlator": null,
        "orderNumber": null,
        "productFamilyId": "03606d31-c2f3-483e-9882-6d050ab3610f",
        "orderVersion": null,
        "source": "VID",
        "instanceName": "DemoVNF",
        "suppressRollback": false
      },
      "relatedInstanceList": [
        {
          "relatedInstance": {
            "instanceName": null,
            "instanceId": "cd2eb659-2463-461b-9c3b-3bf03619c167",
            "modelInfo": {
              "modelCustomizationName": null,
              "modelInvariantId": "43d59b70-8829-4a50-a3f7-d261b220ceef",
              "modelType": "service",
              "modelNameVersionId": "dcb40136-9cec-45be-b080-2a36b31c2f06",
              "modelName": "vfservice",
              "modelVersion": "1.0"
            }
          }
        }
      ],
      "subscriberInfo": null,
      "cloudConfiguration": {
        "aicNodeClli": null,
        "tenantId": "1035021",
        "lcpCloudRegionId": "DFW"
      },
      "requestParameters": {
        "subscriptionServiceType": null,
        "userParams": []
      }
    },
    "instanceReferences": {
      "serviceInstanceId": "cd2eb659-2463-461b-9c3b-3bf03619c167",
      "serviceInstanceName": null,
      "vnfInstanceId": "110f0e9c-52f9-4b12-8bd8-fa2980e48454",
      "vnfInstanceName": "DemoVNF",
      "vfModuleInstanceId": null,
      "vfModuleInstanceName": null,
      "volumeGroupInstanceId": null,
      "volumeGroupInstanceName": null,
      "networkInstanceId": null,
      "networkInstanceName": null
    },
    "requestStatus": {
      "requestState": "COMPLETE",
      "statusMessage": "Vnf has been created successfully.",
      "percentProgress": 100,
      "finishTime": "Wed, 26 Jul 2017 16:15:03 GMT"
    }
  }
}

07/27/17 12:15:02 HTTP Status: Accepted (202)
{
  "requestReferences": {
    "instanceId": "110f0e9c-52f9-4b12-8bd8-fa2980e48454",
    "requestId": "e867be64-e725-4e29-8448-c9eceb51ce3c"
  }
}

get VSPs

http://{{sdc_ip}}:8080/onboarding-api/v1.0/vendor-software-products

"name": "vsp",
"description": "vsp",
"category": "resourceNewCategory.application l4+",

VfModule Preload

Seq

Name

Source

Target

Actor

REST write

REST read

preload vnf

robot

./demo.sh preload <DemoVNF> <DemoModule>

or

http://sdnc:8843/signup

http://sdnc:8843/login
Add VNF Profile

http://{{sdnc_ip}}:8282/restconf/operations/VNF-API:preload-vnf-topology-operation

Accept:application/json

Content-Type:application/json

X-TransactionId:0a3f6713-ba96-4971-a6f8-c2da85a3176e

X-FromAppId:API client

Authorization:Basic YWRtaW46S3A4Yko0U1hzek0wV1hsaGFrM2VIbGNzZTJnQXc4NHZhb0dHbUp2VXkyVQ==

{

"input": {

"request-information": {

"notification-url": "openecomp.org",

"order-number": "1",

"order-version": "1",

"request-action": "PreloadVNFRequest",

"request-id": "test"

},

"sdnc-request-header": {

"svc-action": "reserve",

"svc-notification-url": "http:\/\/openecomp.org:8080\/adapters\/rest\/SDNCNotify",

"svc-request-id": "test"

},

"vnf-topology-information": {

"vnf-assignments": {

"availability-zones": [],

"vnf-networks": [],

"vnf-vms": []

},

"vnf-parameters": [

{

"vnf-parameter-name": "vfw_private_ip_0",

"vnf-parameter-value": "192.168.110.100"

},

{

"vnf-parameter-name": "vfw_private_ip_1",

"vnf-parameter-value": "192.168.120.100"

},

{

"vnf-parameter-name": "vfw_private_ip_2",

"vnf-parameter-value": "10.1.0.11"

},

{

"vnf-parameter-name": "vpg_name_0",

"vnf-parameter-value": "demofwl01pgn"

},

{

"vnf-parameter-name": "demo_artifacts_version",

"vnf-parameter-value": "1.0.0"

},

{

"vnf-parameter-name": "ecomp_private_net_cidr",

"vnf-parameter-value": "10.0.0.0/8"

},

{

"vnf-parameter-name": "key_name",

"vnf-parameter-value": "vfw_keydemo"

},

{

"vnf-parameter-name": "repo_url_artifacts",

"vnf-parameter-value": "https://nexus.onap.org/content/groups/staging"

},

{

"vnf-parameter-name": "protected_private_net_id",

"vnf-parameter-value": "demofwl_protected"

},

{

"vnf-parameter-name": "vpg_private_ip_0",

"vnf-parameter-value": "192.168.110.200"

},

{

"vnf-parameter-name": "vpg_private_ip_1",

"vnf-parameter-value": "10.1.0.12"

},

{

"vnf-parameter-name": "unprotected_private_net_cidr",

"vnf-parameter-value": "192.168.110.0/24"

},

{

"vnf-parameter-name": "dcae_collector_ip",

"vnf-parameter-value": "10.0.4.102"

},

{

"vnf-parameter-name": "repo_url_blob",

"vnf-parameter-value": "https://nexus.onap.org/content/repositories/raw"

},

{

"vnf-parameter-name": "vsn_private_ip_0",

"vnf-parameter-value": "192.168.120.250"

},

{

"vnf-parameter-name": "vsn_private_ip_1",

"vnf-parameter-value": "10.1.0.13"

},

{

"vnf-parameter-name": "vsn_name_0",

"vnf-parameter-value": "demofwl01snk"

},

{

"vnf-parameter-name": "vfw_name_0",

"vnf-parameter-value": "demofwl01fwl"

},

{

"vnf-parameter-name": "pub_key",

"vnf-parameter-value": "ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAqqnA9BAiMLtjOPSYBfhzLu4CiBolWoskDg4KVwhTJVTTeB6CqrQNcadlGXxOHhCYuNCKkUmIVF4WTOisVOJ75Z1c4OMoZLL85xVPKSIeH63kgVugwgPYQu55NbbWX+rsbUha3LnElDhNviMM3iTPbD5nnhKixNERAJMTLKXvZZZGqxW94bREknYPQTT2qrk3YRqwldncopp6Nkgv3AnSJz2gc9tjxnWF0poTQnQm/3D6hiJICrzKfAV0EaPN0KdtYjPhKrYoy6Qb/tKOVaaqsvwfKBJGrT9LfcA7D7M/yj292RT1XN63hI84WC383LsaPJ6eWdDTE6zUP1eGTWCoOw== rsa-key-20161026"

},

{

"vnf-parameter-name": "ecomp_private_net_id",

"vnf-parameter-value": "oam_ecomp_LbMf"

},

{

"vnf-parameter-name": "dcae_collector_port",

"vnf-parameter-value": "8080"

},

{

"vnf-parameter-name": "unprotected_private_net_id",

"vnf-parameter-value": "demofwl_unprotected"

},

{

"vnf-parameter-name": "ecomp_private_subnet_id",

"vnf-parameter-value": "oam_ecomp_LbMf"

},

{

"vnf-parameter-name": "protected_private_net_cidr",

"vnf-parameter-value": "192.168.120.0/24"

}

],

"vnf-topology-identifier": {

"generic-vnf-name": "DemoVNF",

"generic-vnf-type": "service/vsp 1",

"service-type": "c54316d8-464e-4967-bece-8c2b2f458b66",

"vnf-name": "DemoModule",

"vnf-type": "Vsp..base_vfw..module-0"

}

http://{{sdnc_ip}}:8282/restconf/config/VNF-API:preload-vnfs

{ "preload-vnfs": {
"vnf-preload-list": [
{ "vnf-name": "DemoModule",
"vnf-type": "Vsp..base_vfw..module-0",

http://{{sdnc_ip}}:8282/restconf/config/VNF-API:preload-vnfs/vnf-preload-list/DemoModule/Vsp..base_vfw..module-0

{"vnf-preload-list": [{
"vnf-name": "DemoModule",
"vnf-type": "Vsp..base_vfw..module-0",

VfModule Creation

Seq

Name

Source

Target

Actor

REST write

REST read

create Vf module <DemoModule>

vid

demo user

Output:

VfModuleID=5a08199b-4161-4181-9b2d-da29f6df1410
HeatStackID=DemoModule/55bd16d6-6bac-4638-9e87-9063df6d03c3

via OpenStack

openstack server list

4be336b3-a31c-4be0-9261-0cb1cb51227d | demofwl01fwl | ACTIVE | oam_ecomp_LbMf=10.1.0.11; demofwl_unprotected=192.168.110.100; public=104.239.230.93, | || | | | 2001:4802:7803:104:be76:4eff:fe20:377b; demofwl_protected=192.168.120.100

Closed Loop

Seq

Name

Source

Target

Actor

REST write

REST read

appc

robot

./demo.sh appc <DemoModule>

DMaaP

http://{{collector_ip}}:3904/events/unauthenticated.SEC_MEASUREMENT_OUTPUT/group3/sub1?timeout=9000

see JSON.parse(returnedData[i].event.commonEventHeader.eventId

["{\"event\":{\"measurementsForVfScalingFields\":{\"measurementInterval\":10,\"measurementsForVfScalingVersion\":1.1,\"vNicUsageArray\":[{\"multicastPacketsIn\":0,\"bytesIn\":14500,\"unicastPacketsIn\":0,\"multicastPacketsOut\":0,\"broadcastPacketsOut\":0,\"packetsOut\":0,\"bytesOut\":0,\"broadcastPacketsIn\":0,\"packetsIn\":500,\"unicastPacketsOut\":0,\"vNicIdentifier\":\"eth1\"}]},\"commonEventHeader\":{\"reportingEntityName\":\"demofwl01fwl\",\"startEpochMicrosec\":1500849487268085,\"lastEpochMicrosec\":1500849497268085,\"eventId\":\"43434\",\"sourceName\":\"Dummy VM name - No Metadata available\",\"sequence\":43434,\"priority\":\"Normal\",\"functionalRole\":\"vFirewall\",\"domain\":\"measurementsForVfScaling\",\"reportingEntityId\":\"No UUID available\",\"sourceId\":\"Dummy VM UUID - No Metadata available\",\"version\":1.2}}}",

DMaaP

http://{{collector_ip}}:3904/events/unauthenticated.TCA_EVENT_OUTPUT/group3/sub1?timeout=30000

API History

http://{{mso_ip}}:8080/ecomp/mso/infra/orchestrationRequests/v2/?filter=serviceInstanceId%3AEQUALS%3Ac54316d8-464e-4967-bece-8c2b2f458b66

http://{{mso_ip}}:8080/ecomp/mso/infra/orchestrationRequests/v2/?filter=vnfInstanceId%3AEQUALS%3A6229cdee-10f6-4ec4-a5e0-0593154e6d83

http://{{mso_ip}}:8080/ecomp/mso/infra/orchestrationRequests/v2/?filter=vfModuleInstanceId%3AEQUALS%3A5a08199b-4161-4181-9b2d-da29f6df1410

Design Issues

DI 1: 20170712: AAI Cert required for HTTPS REST calls

Use postman for adhoc rest calls - but if you want to code up call chains or hammer an endpoint use Spring RestController or the Rest client in JAX-RS 2.0

Calls to AAI such as the following require both the authentication header and an imported certificate. When running Postman - because it is a Chrome app - this is a simple case of loading a REST url in the browser and importing the certificate after an authentication challenge (AAI:AAI). However for a java client like a JAX-RS 2.0 client we need the certificate in a keystore (the default or a specially defined one).

Below we import the cert into the default keystore. Where did I get the cert? by extracting it from Firefox - however it is in the code base - looking it up

obrienbiometrics:onap michaelobrien$ ls $JAVA_HOME/jre/lib/security/cacerts

/Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre/lib/security/cacerts

sudo keytool -import -trustcacerts -alias aai -file /Users/michaelobrien/Dropbox/_amdocs/config/certs/aai/aaiapisimpledemoopenecomporg.cer -keystore $JAVA_HOME/jre/lib/security/cacerts

Running an https rest target using this certificate - if the cert is in a default keystore - you dont need to define it.

// require: cert, username, password, headers(X-FromAppId,Accept), Authenticator

public String run(boolean isSSL, String url, String port, String path) {

  String record = null;
  Client client = null;
  WebTarget latestTarget = null;
  WebTarget rootTarget = null;
  if(isSSL) {
    SslConfigurator sslConfig = SslConfigurator.newInstance();
    SSLContext sslContext = sslConfig.createSSLContext();
    HostnameVerifier verifier = new HostnameVerifier() {
    public boolean verify(String hostname, SSLSession sslSession) {
      return true; // TODO: security breach
    }};
    client = ClientBuilder.newBuilder().sslContext(sslContext).hostnameVerifier(verifier).build();
    client.register(new Authenticator("AAI","AAI"));
  } else {

      client = ClientBuilder.newClient();
    }
    rootTarget = client.target(url);
    latestTarget = rootTarget.path(path);
    try {
      try { Thread.sleep(1); } catch (InterruptedException ie) { Thread.currentThread().interrupt(); }
        record = finalTarget.request()
          .header("X-FromAppId", "AAI").header("Accept", "application/json")
          .get(String.class);

public class Authenticator implements ClientRequestFilter {
 private final String user;
 private final String pass;

 public Authenticator(String user, String password) {
      this.user = user; this.pass = password;
 }

 public void filter(ClientRequestContext requestContext) throws IOException {
   MultivaluedMap<String, Object> headMap = requestContext.getHeaders();
 String basicAuth = null;
 try {
         String aToken = user + ":" + pass;
 basicAuth = "BASIC " + DatatypeConverter.printBase64Binary(aToken.getBytes("UTF-8"));
 } catch (UnsupportedEncodingException uee) { throw new IllegalStateException("Encoding with UTF-8 failed", uee);}
   headMap.add("Authorization", basicAuth);
 }
}

DI 2: 20170712: Spring Boot Backend Framework

Instead of using a full Tomcat deployment server - we will use an embedded Jetty container.

pom.xml

<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.3.RELEASE</version></parent>

<dependencies>
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency>

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><optional>true</optional></dependency>

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency>
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency>
</dependencies>

<build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId>
<configuration><addResources>true</addResources> </configuration></plugin></plugins></build>

DI 3: 20170712: JAX-RS 2.0 API Framework

DI 4: 20170712: 3D Framework: Three js OpenGL 3D wrapper on Canvas

Di 5: 20170712: Javascript Timer Framework

DI 6: 20170712: Three js Listener

DI 7: 20170712: Three js Edges between Nodes

DI 8: 20170712: Three js Click Context

DI 9: 20170712: AJAX JAX-RS Channel

DI 10: 20170712: WebSocket Channel

DI 11: 20170712: React.js Framework

DI 12: 20170712: Three js Text

DI 13: 20170721: Demo Robot REST extraction

Reverse engineer the orchestration rest calls coming out of demo.sh

/testsuite/properties/demo.sh not /testsuite/docker/demo.sh

/testsuite/runtags.sh

/testsuite/resources/demo_preload.robot "Load Customer And Models"

"Create Customer For VNF Demo"

create_customer.robot (aai put /aai/v8//business/customers/customer/)

create_service.robot (aai put /aai/v8/service-design-and-creation/services

"Load Models" | Distribute Model | Model Distribution For Directory in model_test_template.robot | Distribute Model From ASDC in addc_interface.robot

(Add ASDC Catalog Service, Setup ASDC Catalog Resource, Get ASDC Catalog Resource,

Add ASDC Resource Instance, Get ASDC Catalog Service, Checkin ASDC Catalog Service,

Request Certify ASDC Catalog Service, Start Certify ASDC Catalog Service, Certify ASDC Catalog Service, Approve ASDC Catalog Service,

Distribute ASDC Catalog Service, Get ASDC Catalog Service, Check Catalog Service Distributed)

Preload VNF:demo.robot (

  Preload User Model:demo_preload.robot (

    Get Service Instance

    Get Relationship Data

    Get Persona Model Id

    Login To VID GUI

    Get Module Names from VID

    Preload Vnf:sdngc_interface.robot(

      Update Module Name

      Preload Vnf Profile(

        Login To SDNGC Admin GUI

goto sdnc:8843/mobility/getVnfProfile

        click add_vnf_profile

inserts directly to the DB from the client (for now)

/sdnc-oam/admportal/mobility.js

router.post('/addVnfNetwork', csp.checkAuth, function(req,res){
 var sql = "INSERT INTO VNF_NETWORKS (vnf_type,network_role) VALUES ("
 + "'" + req.body.nf_vnf_type + "'," + "'" + req.body.nf_network_role + "')";
 tasks.push( function(callback) { dbRoutes.executeSQL(sql,req,res,callback); } );

)

      Preload One Vnf Topology

)))

DI 20: 20170721: Rest API Chaining