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Overview

The PM Subscription Handler (PMSH) is a micro service written in Python, which allows for the definition and unlocking of PM subscriptions on one or more network function (NF) instances.

Architecture Diagram

Artifacts


Image result for cloudify

PMSH blueprint

PMSH image: 1.0.2


Deployment Prerequisite/dependencies

  1. The following components must be up and running to successfully deploy PMSH

    1. DCAE Platform
    2. SDC
    3. CLAMP 
    4. POLICY
    5. A&AI (Should have at least 1 PNF registered)

Deployment Steps


Due to a bug (DCAEGEN2-2136), in the Frankfurt release, there is a workaround required in order to deploy the PM Subscription Handler. The monitoring policy for the microservice needs to be manually inserted into CONSUL. This requires two steps:


1. The CONSUL service is no longer exposed in the Frankfurt release, this needs to be exposed in order to be accessible outside the k8s cluster.

Expose CONSUL service
kubectl expose svc -n onap consul-server --name=x-consul-server --type=NodePort

2. Insert the monitoring policy into CONSUL

PUT policy into CONSUL
curl -X PUT \
  http://<k8s-node-ip>:<consul-port>/v1/kv/dcae-pmsh:policy \
  -H 'Content-Type: application/json' \
  -d '{
    "subscription": {
        "subscriptionName": "test-subscription",
        "administrativeState": "LOCKED",
        "fileBasedGP": 15,
        "fileLocation": "/pm/pm.xml",
        "nfFilter": {
            "swVersions": [
                "1.0.0"
            ],
            "nfNames": [
                "^pnf.*"
            ]
        },
        "measurementGroups": [{
                "measurementGroup": {
                    "measurementTypes": [{
                            "measurementType": "countera"
                        },
                        {
                            "measurementType": "counterb"
                        }
                    ],
                    "managedObjectDNsBasic": [{
                            "DN": "dna"
                        },
                        {
                            "DN": "dnb"
                        }
                    ]
                }
            },
            {
                "measurementGroup": {
                    "measurementTypes": [{
                            "measurementType": "counterc"
                        },
                        {
                            "measurementType": "counterd"
                        }
                    ],
                    "managedObjectDNsBasic": [{
                            "DN": "dnc"
                        },
                        {
                            "DN": "dnd"
                        }
                    ]
                }
            }
        ]
    }
}'


Starting in Frankfurt, all DCAE service blueprints are bootstrapped, meaning they are all available in the inventory by default and do not need to be onboarded manually. Deployment of PMSH can be done using Dashboard UI/Cloudify UI or via CLI. Below steps are based on CLI using the deployment handler.

1. Get the typeId of PMSH using the inventory API

Get serviceTypeId from DCAE inventory
curl https://<k8s-node-ip>:<inventory-port>/dcae-service-types


The PMSH typeID can then be taken from the response

Inventory response
...
{
        "owner": "admin",
        "typeName": "k8s-pmsh",
        "typeVersion": 100,
        "blueprintTemplate": "#\n# ============LICENSE_START=======================================================\n#  Copyright (C) 2020 Nordix Foundation.\n# ================================================================================\n# Licensed under the Apache License, Version 2.0 (the 'License');\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#      http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an 'AS IS' BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n#\n# SPDX-License-Identifier: Apache-2.0\n# ============LICENSE_END=========================================================\n#\n\ntosca_definitions_version: cloudify_dsl_1_3\n\nimports:\n  - 'http://www.getcloudify.org/spec/cloudify/4.5.5/types.yaml'\n  - 'https://nexus.onap.org/service/local/repositories/raw/content/org.onap.dcaegen2.platform.plugins/R6/k8splugin/1.7.2/k8splugin_types.yaml'\n  - 'https://nexus.onap.org/service/local/repositories/raw/content/org.onap.ccsdk.platform.plugins/type_files/pgaas/1.1.0/pgaas_types.yaml'\n\ninputs:\n  tag_version:\n    type: string\n    description: Docker image to be used\n    default: 'nexus3.onap.org:10001/onap/org.onap.dcaegen2.services.pmsh:1.0.2'\n  replicas:\n    type: integer\n    description: Number of instances\n    default: 1\n  operational_policy_name:\n    type: string\n    default: 'pmsh-operational-policy'\n  control_loop_name:\n    type: string\n    default: 'pmsh-control-loop'\n  pmsh_publish_topic_name:\n    type: string\n    default: 'unauthenticated.DCAE_CL_OUTPUT'\n  policy_feedback_topic_name:\n    type: string\n    default: 'unauthenticated.PMSH_CL_INPUT'\n  aai_notification_topic_name:\n    type: string\n    default: 'AAI-EVENT'\n  publisher_client_role:\n    type: string\n    description: Client role to request secure access to topic\n    default: 'org.onap.dcae.pmPublisher'\n  subscriber_client_role:\n    type: string\n    description: Client role to request secure access to topic\n    default: 'org.onap.dcae.pmSubscriber'\n  dcae_location:\n    type: string\n    description: DCAE location for the subscriber, used to set up routing\n    default: 'san-francisco'\n  cpu_limit:\n    type: string\n    default: '1000m'\n  cpu_request:\n    type: string\n    default: '1000m'\n  memory_limit:\n    type: string\n    default: '1024Mi'\n  memory_request:\n    type: string\n    default: '1024Mi'\n  pgaas_cluster_name:\n    type: string\n    default: 'dcae-pg-primary.onap'\nnode_templates:\n  pgaasvm:\n    type: dcae.nodes.pgaas.database\n    properties:\n      writerfqdn: { get_input: pgaas_cluster_name }\n      name: 'pmsh'\n  pmsh:\n    type: dcae.nodes.ContainerizedServiceComponentUsingDmaap\n    interfaces:\n      cloudify.interfaces.lifecycle:\n        create:\n          inputs:\n            ports:\n              - '8443:0'\n            envs:\n              PMSH_PG_URL:\n                { get_attribute: [ pgaasvm, admin, host ] }\n              PMSH_PG_PASSWORD:\n                { get_attribute: [ pgaasvm, admin, password ] }\n              PMSH_PG_USERNAME:\n                { get_attribute: [ pgaasvm, admin, user ] }\n              PMSH_DB_NAME:\n                { get_attribute: [ pgaasvm, admin, database ] }\n\n    relationships:\n      - type: cloudify.relationships.depends_on\n        target: pgaasvm\n\n    properties:\n      service_component_type: 'dcae-pmsh'\n      service_component_name_override: 'dcae-pmsh'\n      application_config:\n        aaf_identity: 'dcae@dcae.onap.org'\n        aaf_password: 'demo123456!'\n        operational_policy_name: { get_input: operational_policy_name }\n        control_loop_name: { get_input: control_loop_name }\n        cert_path: '/opt/app/pmsh/etc/certs/cert.pem'\n        key_path: '/opt/app/pmsh/etc/certs/key.pem'\n        ca_cert_path: '/opt/app/pmsh/etc/certs/cacert.pem'\n        streams_publishes:\n          policy_pm_publisher:\n            type: message_router\n            dmaap_info:\n              topic_url: {concat: [\"https://message-router:3905/events/\", { get_input: pmsh_publish_topic_name }]}\n        streams_subscribes:\n          policy_pm_subscriber:\n            type: message_router\n            dmaap_info:\n              topic_url: {concat: [\"https://message-router:3905/events/\", { get_input: policy_feedback_topic_name }]}\n          aai_subscriber:\n            type: message_router\n            dmaap_info:\n              topic_url: {concat: [\"https://message-router:3905/events/\", { get_input: aai_notification_topic_name }]}\n      resource_config:\n        limits:\n          cpu: { get_input: cpu_limit }\n          memory: { get_input: memory_limit }\n        requests:\n          cpu: { get_input: cpu_request }\n          memory: { get_input: memory_request }\n      docker_config:\n        healthcheck:\n          endpoint: /healthcheck\n          interval: 15s\n          timeout: 1s\n          type: https\n      image: { get_input: tag_version }\n      replicas: { get_input: replicas }\n      log_info:\n        log_directory: '/var/log/ONAP/dcaegen2/services/pmsh'\n      tls_info:\n        cert_directory: '/opt/app/pmsh/etc/certs'\n        use_tls: true",
        "serviceIds": [],
        "vnfTypes": [],
        "serviceLocations": [],
        "asdcServiceId": "",
        "asdcResourceId": "",
        "asdcServiceURL": null,
        "application": "DCAE",
        "component": "dcae",
        "typeId": "92e9fcd2-17cb-4b87-b089-873e132c0415",
        "selfLink": {
            "rel": "self",
            "href": "https://10.10.10.36:31413/dcae-service-types/92e9fcd2-17cb-4b87-b089-873e132c0415"
        },
        "created": 1585228467040,
        "deactivated": null
}
...


2. Create a deployment using the deployment handler API

Create PMSH deployment
curl -X PUT \
  https://<k8s-node-ip>:<dep-handler-port>/dcae-deployments/dcae-pmsh \
  -H 'Content-Type: application/json' \
  -d '{
    "inputs": {},
	"serviceTypeId": "92e9fcd2-17cb-4b87-b089-873e132c0415"
}'

To un-deploy

Create PMSH deployment
curl -X DELETE https://<k8s-node-ip>:<dep-handler-port>/dcae-deployments/dcae-pmsh

Initial Validation

After deployment, verify if PMSH pod is running correctly

Verify Heartbeat is running
root@k8s-rancher:~# kubectl get pods -n onap | egrep "pmsh"

dep-dcae-pmsh-6b58cbc7f5-lm92g                                2/2     Running            0          149m


We can curl message router to verify that PMSH has published an event to it's configured topic. By default this is unauthenticated.DCAE_CL_OUTPUT

Get from MR
curl -k https://message-router:3905/events/unauthenticated.DCAE_CL_OUTPUT/1/1


If PMSH is working correctly we should see an event published to message router

Response from MR
["{\"nfName\":\"pnf500\",\"policyName\":\"pmsh-operational-policy\",\"changeType\":\"CREATE\",\"subscription\":{\"administrativeState\":\"LOCKED\",\"subscriptionName\":\"test-subscription\",\"measurementGroups\":[{\"measurementGroup\":{\"measurementTypes\":[{\"measurementType\":\"countera\"},{\"measurementType\":\"counterb\"}],\"managedObjectDNsBasic\":[{\"DN\":\"dna\"},{\"DN\":\"dnb\"}]}},{\"measurementGroup\":{\"measurementTypes\":[{\"measurementType\":\"counterc\"},{\"measurementType\":\"counterd\"}],\"managedObjectDNsBasic\":[{\"DN\":\"dnc\"},{\"DN\":\"dnd\"}]}}],\"fileBasedGP\":15,\"fileLocation\":\"/pm/pm.xml\"},\"closedLoopControlName\":\"pmsh-control-loop\"}"]


This can also be verified by checking the logs to verify PMSH can connect to A&AI and DMaaP

Verify PMSH logs
pmsh@dcae-pmsh:/opt/app/pmsh$ tail -f /var/log/ONAP/dcaegen2/services/pmsh/debug.log 
2020-03-11T08:40:12.363092|PMSH Configuration from Configbinding Service: {'config': {'aaf_identity': 'dcae@dcae.onap.org', 'control_loop_name': 'pmsh-control-loop', 'operational_policy_name': 'pmsh-operational-policy', 'key_path': '/opt/app/pmsh/etc/certs/key.pem', 'streams_publishes': {'policy_pm_publisher': {'type': 'message_router', 'dmaap_info': {'topic_url': 'https://message-router:3905/events/unauthenticated.DCAE_CL_OUTPUT'}}}, 'cert_path': '/opt/app/pmsh/etc/certs/cert.pem', 'streams_subscribes': {'policy_pm_subscriber': {'type': 'message_router', 'dmaap_info': {'topic_url': 'https://message-router:3905/events/unauthenticated.PMSH_CL_INPUT'}}, 'aai_subscriber': {'type': 'message_router', 'dmaap_info': {'topic_url': 'https://message-router:3905/events/AAI-EVENT'}}}, 'aaf_password': 'demo123456!', 'ca_cert_path': '/opt/app/pmsh/etc/certs/cacert.pem'}, 'policy': {'subscription': {'subscriptionName': 'test-subscription', 'administrativeState': 'LOCKED', 'fileBasedGP': 15, 'fileLocation': '/pm/pm.xml', 'nfFilter': {'swVersions': ['1.0.0', '1.0.1'], 'nfNames': ['^pnf.*', '^vnf.*']}, 'measurementGroups': [{'measurementGroup': {'measurementTypes': [{'measurementType': 'countera'}, {'measurementType': 'counterb'}], 'managedObjectDNsBasic': [{'DN': 'dna'}, {'DN': 'dnb'}]}}, {'measurementGroup': {'measurementTypes': [{'measurementType': 'counterc'}, {'measurementType': 'counterd'}], 'managedObjectDNsBasic': [{'DN': 'dnc'}, {'DN': 'dnd'}]}}]}}}
2020-03-11T08:40:12.363617|Administrative State did not change in the Config
2020-03-11T08:40:42.432892|PMSH Configuration from Configbinding Service: {'config': {'aaf_identity': 'dcae@dcae.onap.org', 'control_loop_name': 'pmsh-control-loop', 'operational_policy_name': 'pmsh-operational-policy', 'key_path': '/opt/app/pmsh/etc/certs/key.pem', 'streams_publishes': {'policy_pm_publisher': {'type': 'message_router', 'dmaap_info': {'topic_url': 'https://message-router:3905/events/unauthenticated.DCAE_CL_OUTPUT'}}}, 'cert_path': '/opt/app/pmsh/etc/certs/cert.pem', 'streams_subscribes': {'policy_pm_subscriber': {'type': 'message_router', 'dmaap_info': {'topic_url': 'https://message-router:3905/events/unauthenticated.PMSH_CL_INPUT'}}, 'aai_subscriber': {'type': 'message_router', 'dmaap_info': {'topic_url': 'https://message-router:3905/events/AAI-EVENT'}}}, 'aaf_password': 'demo123456!', 'ca_cert_path': '/opt/app/pmsh/etc/certs/cacert.pem'}, 'policy': {'subscription': {'subscriptionName': 'test-subscription', 'administrativeState': 'UNLOCKED', 'fileBasedGP': 15, 'fileLocation': '/pm/pm.xml', 'nfFilter': {'swVersions': ['1.0.0', '1.0.1'], 'nfNames': ['^pnf.*', '^vnf.*']}, 'measurementGroups': [{'measurementGroup': {'measurementTypes': [{'measurementType': 'countera'}, {'measurementType': 'counterb'}], 'managedObjectDNsBasic': [{'DN': 'dna'}, {'DN': 'dnb'}]}}, {'measurementGroup': {'measurementTypes': [{'measurementType': 'counterc'}, {'measurementType': 'counterd'}], 'managedObjectDNsBasic': [{'DN': 'dnc'}, {'DN': 'dnd'}]}}]}}}
2020-03-11T08:40:42.433357|Administrative State changed from "LOCKED" "to "UNLOCKED".
2020-03-11T08:40:42.941068|Publishing Event to Activate Sub: test-subscription for the nf: pnf500
2020-03-11T08:40:42.998828|Adding network functions to subscription test-subscription
2020-03-11T08:40:43.088201|NetworkFunctionModel: pnf500, Active
2020-03-11T08:40:43.180609|Listening to AAI-EVENT topic in MR.
2020-03-11T08:40:47.321604|Request sent to MR topic: https://message-router:3905/events/unauthenticated.PMSH_CL_INPUT


Functional tests

Given that the steps above were used to configure the PMSH monitoring policy with administrativeState = LOCKED. The subscription has not yet been "activated" on the network function. 

Activate an inactive subscription

If the subscription is in a LOCKED state (administrativeState=LOCKED) we can reconfigure PMSH to activate the subscription:

Activate Subscription
curl -X PUT \
  http://<k8s-node-ip>:<consul-port>/v1/kv/dcae-pmsh:policy \
  -H 'Content-Type: application/json' \
  -d '{
    "subscription": {
        "subscriptionName": "test-subscription",
        "administrativeState": "UNLOCKED",
        "fileBasedGP": 15,
        "fileLocation": "/pm/pm.xml",
        "nfFilter": {
            "swVersions": [
                "1.0.0"
            ],
            "nfNames": [
                "^pnf.*"
            ]
        },
        "measurementGroups": [{
                "measurementGroup": {
                    "measurementTypes": [{
                            "measurementType": "countera"
                        },
                        {
                            "measurementType": "counterb"
                        }
                    ],
                    "managedObjectDNsBasic": [{
                            "DN": "dna"
                        },
                        {
                            "DN": "dnb"
                        }
                    ]
                }
            },
            {
                "measurementGroup": {
                    "measurementTypes": [{
                            "measurementType": "counterc"
                        },
                        {
                            "measurementType": "counterd"
                        }
                    ],
                    "managedObjectDNsBasic": [{
                            "DN": "dnc"
                        },
                        {
                            "DN": "dnd"
                        }
                    ]
                }
            }
        ]
    }
}'


We should then be able to see a CREATE event sent to message router:

Get from MR
curl -k https://message-router:3905/events/unauthenticated.DCAE_CL_OUTPUT/1/1


If PMSH is working correctly we should see a CREATE event sent to message router:

Response from MR
["{\"nfName\":\"pnf500\",\"policyName\":\"pmsh-operational-policy\",\"changeType\":\"CREATE\",\"subscription\":{\"administrativeState\":\"LOCKED\",\"subscriptionName\":\"test-subscription\",\"measurementGroups\":[{\"measurementGroup\":{\"measurementTypes\":[{\"measurementType\":\"countera\"},{\"measurementType\":\"counterb\"}],\"managedObjectDNsBasic\":[{\"DN\":\"dna\"},{\"DN\":\"dnb\"}]}},{\"measurementGroup\":{\"measurementTypes\":[{\"measurementType\":\"counterc\"},{\"measurementType\":\"counterd\"}],\"managedObjectDNsBasic\":[{\"DN\":\"dnc\"},{\"DN\":\"dnd\"}]}}],\"fileBasedGP\":15,\"fileLocation\":\"/pm/pm.xml\"},\"closedLoopControlName\":\"pmsh-control-loop\"}"]


Deactivate an active subscription

If the subscription is in an UNLOCKED state (administrativeState=UNLOCKED) we can reconfigure PMSH to deactivate the subscription:

Deactivate Subscription
curl -X PUT \
  http://<k8s-node-ip>:<consul-port>/v1/kv/dcae-pmsh:policy \
  -H 'Content-Type: application/json' \
  -d '{
    "subscription": {
        "subscriptionName": "test-subscription",
        "administrativeState": "LOCKED",
        "fileBasedGP": 15,
        "fileLocation": "/pm/pm.xml",
        "nfFilter": {
            "swVersions": [
                "1.0.0"
            ],
            "nfNames": [
                "^pnf.*"
            ]
        },
        "measurementGroups": [{
                "measurementGroup": {
                    "measurementTypes": [{
                            "measurementType": "countera"
                        },
                        {
                            "measurementType": "counterb"
                        }
                    ],
                    "managedObjectDNsBasic": [{
                            "DN": "dna"
                        },
                        {
                            "DN": "dnb"
                        }
                    ]
                }
            },
            {
                "measurementGroup": {
                    "measurementTypes": [{
                            "measurementType": "counterc"
                        },
                        {
                            "measurementType": "counterd"
                        }
                    ],
                    "managedObjectDNsBasic": [{
                            "DN": "dnc"
                        },
                        {
                            "DN": "dnd"
                        }
                    ]
                }
            }
        ]
    }
}'


We should then be able to see a DELETE event sent to message router:

Get from MR
curl -k https://message-router:3905/events/unauthenticated.DCAE_CL_OUTPUT/1/1


If PMSH is working correctly we should see a DELETE event sent to message router:

Response from MR
["{\"nfName\":\"pnf500\",\"policyName\":\"pmsh-operational-policy\",\"changeType\":\"DELETE\",\"subscription\":{\"administrativeState\":\"LOCKED\",\"subscriptionName\":\"test-subscription\",\"measurementGroups\":[{\"measurementGroup\":{\"measurementTypes\":[{\"measurementType\":\"countera\"},{\"measurementType\":\"counterb\"}],\"managedObjectDNsBasic\":[{\"DN\":\"dna\"},{\"DN\":\"dnb\"}]}},{\"measurementGroup\":{\"measurementTypes\":[{\"measurementType\":\"counterc\"},{\"measurementType\":\"counterd\"}],\"managedObjectDNsBasic\":[{\"DN\":\"dnc\"},{\"DN\":\"dnd\"}]}}],\"fileBasedGP\":15,\"fileLocation\":\"/pm/pm.xml\"},\"closedLoopControlName\":\"pmsh-control-loop\"}"]


Dynamic Configuration Update

As the PMSH service periodically polls Consul KV using configbindingService API's - the run time configuration of PMSH service can be updated dynamically without having to redeploy/restart the service. The updates to the configuration can be triggered either from Policy (or CLAMP) or made directly in Consul.

Locate the service name by executing into PMSH Service pod and getting env HOSTNAME value

ServiceName 
root@k8s-rancher:~# kubectl exec -it -n onap dep-s78f36f2daf0843518f2e25184769eb8b-dcae-pmsh-servithzx2 /bin/bash
Defaulting container name to s78f36f2daf0843518f2e25184769eb8b-dcae-pmsh-service.
Use 'kubectl describe pod/dep-s78f36f2daf0843518f2e25184769eb8b-dcae-pmsh-servithzx2 -n onap' to see all of the containers in this pod.

misshtbt@s78f36f2daf0843518f2e25184769eb8b-dcae-pmsh-service:~/bin$ env | grep HOSTNAME
HOSTNAME=s78f36f2daf0843518f2e25184769eb8b-dcae-pmsh-service

Change the configuration for Service in KV-store through UI

Consul URL
http://<k8s-node-ip>:<consul-ip>/ui/#/dc1/kv/


Consul Snapshot <>

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