Adding Documentation regarding PRH

Change-Id: I158a97dbdf06297c1cacae2da6a318adf6218a96
Issue-ID: DCAEGEN2-398
Signed-off-by: pwielebs <piotr.wielebski@nokia.com>
diff --git a/docs/sections/services/prh/configuration.rst b/docs/sections/services/prh/configuration.rst
new file mode 100644
index 0000000..a36ad95
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+++ b/docs/sections/services/prh/configuration.rst
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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+Configuration
+=============
+
+PRH expects to be able to fetch configuration directly from consul service in following JSON format:
+
+.. code-block:: json
+
+    {
+        "dmaap.dmaapProducerConfiguration.dmaapTopicName":"/events/unauthenticated.PNF_READY",
+        "dmaap.dmaapConsumerConfiguration.dmaapHostName":"message-router.onap.svc.cluster.local",
+        "aai.aaiClientConfiguration.aaiPnfPath":"/network/pnfs/pnf",
+        "aai.aaiClientConfiguration.aaiUserPassword":"AAI",
+        "dmaap.dmaapConsumerConfiguration.dmaapUserName":"admin",
+        "aai.aaiClientConfiguration.aaiBasePath":"/aai/v12",
+        "dmaap.dmaapConsumerConfiguration.timeoutMs":-1,
+        "dmaap.dmaapProducerConfiguration.dmaapPortNumber":3904,
+        "aai.aaiClientConfiguration.aaiHost":"aai.onap.svc.cluster.local",
+        "dmaap.dmaapConsumerConfiguration.dmaapUserPassword":"admin",
+        "dmaap.dmaapProducerConfiguration.dmaapProtocol":"http",
+        "aai.aaiClientConfiguration.aaiIgnoreSslCertificateErrors":true,
+        "dmaap.dmaapProducerConfiguration.dmaapContentType":"application/json",
+        "dmaap.dmaapConsumerConfiguration.dmaapTopicName":"/events/unauthenticated.VES_PNFREG_OUTPUT",
+        "dmaap.dmaapConsumerConfiguration.dmaapPortNumber":3904,
+        "dmaap.dmaapConsumerConfiguration.dmaapContentType":"application/json",
+        "dmaap.dmaapConsumerConfiguration.messageLimit":-1,
+        "dmaap.dmaapConsumerConfiguration.dmaapProtocol":"http",
+        "aai.aaiClientConfiguration.aaiUserName":"AAI",
+        "dmaap.dmaapConsumerConfiguration.consumerId":"c12",
+        "dmaap.dmaapProducerConfiguration.dmaapHostName":"message-router.onap.svc.cluster.local",
+        "aai.aaiClientConfiguration.aaiHostPortNumber":8443,
+        "dmaap.dmaapConsumerConfiguration.consumerGroup":"OpenDCAE-c12",
+        "aai.aaiClientConfiguration.aaiProtocol":"https",
+        "dmaap.dmaapProducerConfiguration.dmaapUserName":"admin",
+        "dmaap.dmaapProducerConfiguration.dmaapUserPassword":"admin"
+    }
+
+
+There are also optional configuration parameters:
+
+.. code-block:: json
+
+   "security": {
+      "keyFile": "/opt/app/prh/local/org.onap.prh.keyfile",
+      "trustStore": "/opt/app/prh/local/org.onap.prh.trust.jks",
+      "trustStorePassword": "change it",
+      "keyStore": "/opt/app/prh/local/org.onap.prh.p12",
+      "keyStorePassword": "change it",
+      "enableAaiCertAuth": "false",
+      "enableDmaapCertAuth": "false"
+    }