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.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
*********************************************************
Tutorial: Testing the vDNS Use Case in a standalone PDP-D
*********************************************************
.. contents::
:depth: 3
In this tutorial we will go over how to access and start up the PDP-D, setup the prerequisites for the vDNS flow, enable/disable the AAI and SO Simulators that will be used in the vDNS flow, and inject messages to trigger the vDNS flow.
Accessing and starting the PDP-D
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The first step is to access the docker container of name *drools*.
.. code-block:: bash
docker exec -it -u 0 drools su - policy
The PDP-D software is installed under the *policy* account, the policy root directory is under *${POLICY_HOME}* environment variable and it may be changed on a per installation basis. It is typically set up under the */opt/app/policy* directory but can be changed during installation. All PDP-D software runs with non-root privileges as *policy* is a regular user account.
Once within the drools container, the running status can be observed by using the *policy* command:
.. code-block:: bash
policy [--debug] status|start|stop
The running status of the PDP-D can be observed with *policy status*
.. code-block:: bash
policy@drools:~$ policy status [drools-pdp-controllers] L []: Policy Management (pid 1500) is running 1 cron jobs installed.
Prerequisites for the vDNS flow
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
In order to trigger the vDNS flow we will need to inject an ONSET message via curl command. We're going to create a temporary *util* directory to store a file that contains the vDNS ONSET message.
Navigate to */tmp* and create directory *util*. *util* is just a temporary folder we've created to use as our 'workspace'.
.. code-block:: bash
cd /tmp
mkdir util
Next, we're going to create a file named *dcae.vdns.onset.json* and edit it to paste the vDNS ONSET message contents.
.. code-block:: bash
touch dcae.vdns.onset.json
vi dcae.vdns.onset json
Here are the contents of the vDNS ONSET message. Copy/paste this into dcae.vdns.onset.json:
.. code-block:: bash
{ "closedLoopEventClient": "DCAE_INSTANCE_ID.dcae-tca", "target_type": "VNF", "AAI": { "vserver.vserver-name": "vlb-lb-32c8", "vserver.is-closed-loop-disabled": "false" }, "closedLoopAlarmStart": 1484677482204798, "closedLoopEventStatus": "ONSET", "closedLoopControlName": "ControlLoop-vDNS-6f37f56d-a87d-4b85-b6a9-cc953cf779b3", "version": "1.0.2", "target": "vserver.vserver-name", "requestID": "99999999-686e-4790-8c45-bdfa61df770f", "from": "DCAE" }
Enabling the AAI and SO Simulators
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Enabling the *controlloop-utils* feature will enable the simulators. To do this, simply stop the drools pdp, enable the feature, and restart the drools pdp like so:
.. code-block:: bash
policy stop
features enable controlloop-utils
policy start
Now, in */opt/app/policy/config/* directory, you should see a new properties file named *simulators.properties.environment*. In here you will find the credentials for the AAI and SO simulators.
Injecting an ONSET to trigger the vDNS Flow
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
We are now ready to inject an ONSET message to trigger the vDNS flow. Simply navigate back to the directory *dcae.vdns.onset.json* file is saved (i.e. cd /tmp/util) and run this curl command:
.. code-block:: bash
http -a @1b3rt:31nst31n PUT :9696/policy/pdp/engine/topics/sources/ueb/unauthenticated.DCAE_CL_OUTPUT/events @dcae.vdns.onset.json Content-Type:"text/plain"
You should see some output similar to this:
.. image:: tutorial_vDNS_1.png
You can view the logs to see the network activity or find any errors that may have occurred. Logs are located in */opt/app/policy/logs*.
Reading the logs
^^^^^^^^^^^^^^^^
Once you've injected the onset message, this should appear in the network.log:
.. image:: tutorial_vDNS_2.png
End of Document
.. SSNote: Wiki page ref. https://wiki.onap.org/display/DW/Using+guard+in+the+PDP-D
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