Configuring Business Rule Deployment

WSO2 Business Rules Manager uses ruleTemplates within templateGroups, to derive business rules from. Each ruleTemplate will have a UUID - that is used to uniquely identify itself. When a ruleTemplate is specified under a worker node; SiddhiApps derived in business rules created out of that ruleTemplate will be deployed in the specified worker node.

1. Open the deployment.yaml file in the <WSO2SP_HOME>/conf/dashboard directory.

2. Deployment configurations for the Business Rules Manager are specified under wso2.business.rules.manager. Provide the URL(s) of worker node(s) that is/are available to deploy SiddhiApps, under deployment_configs in the <HOST_NAME>:<PORT> format.

   deployment_configs:
   	- <NODE1_HOST_NAME>:<NODE1_PORT>
   	  <NODE2_HOST_NAME>:<NODE2_PORT>
   

   Eg:

   deployment_configs:
   	- localhost:9090
   	  10.100.4.140:9090

3. List down the UUIDs of required rule templates under each node. This results in Siddhi applications created out of the business rules derived from those templates being deployed in the required nodes.

   deployment_configs:
   	- <NODE1_HOST_NAME>:<NODE1_PORT>:
   		- ruleTemplate1_UUID
   		- ruleTemplate2_UUID
   		- ruleTemplate3_UUID

   e.g.,

   deployment_configs:
   	- localhost:9090:
   	   - sweet-production-kpi-analysis
          - stock-exchange-input
          - stock-exchange-output

4. If required, you can enter a specific rule template under multiple nodes as shown below.

   Before entering a specific rule template under multiple node, make sure that you have selected Many for the Instance Count field of the template. For more information, see Creating a Business Rule Template.

   deployment_configs:
   	- <NODE1_HOST_NAME>:<NODE1_PORT>:
   		- ruleTemplate1_UUID
   		- ruleTemplate2_UUID
   		- ruleTemplate3_UUID
   	  <NODE2_HOST_NAME>:<NODE2_PORT>:
   		- ruleTemplate1_UUID
   		- ruleTemplate3_UUID
   	  <NODE3_HOST_NAME>:<NODE3_PORT>:
   		- ruleTemplate2_UUID
   		- ruleTemplate3_UUID
   		- ruleTemplate4_UUID

   e.g.,

   deployment_configs:
   	- localhost:9090:
   		- sweet-production-kpi-analysis
   		- stock-exchange-input
   		- stock-exchange-output
   	  10.100.40.169:9090:
   		- identifying-continuous-production-decrease
   		- sweet-production-kpi-analysis

   Note that the rule template with the  sweet-production-kpi-analysis UUID has been configured under two worker nodes. As indicated by this, if a business rule is derived from  sweet-production-kpi-analysis , Siddhi Applications created from it are deployed in both the nodes.

5. Specify the username and password that are common for all the worker nodes.

   username: admin
   password: admin

   
   The complete deployment configuration for Business Rules looks as follows.

   wso2.business.rules.manager:
   	datasource: BUSINESS_RULES_DB
   	deployment_configs:
   		- localhost:9090:
   			- stock-data-analysis
   			- stock-exchange-input
   			- stock-exchange-output
   			- identifying-continuous-production-decrease
   			- sweet-production-kpi-analysis
    	username: admin
    	password: admin