How to set up drools kie server and kie workbench for development using wildfly

Purpose

This link helps you quickly setup drools kie server and workbench and configure them. This uses drools version 7.12.0.Final. This link focuses on setting up drools on wildfly. There is a separate link regarding set up instructions for tomcat. These instructions are tailored for running it from unix like machines.

Pre-requisites

Download and extract wildfly 11 as this is the version of wildfly currently supported by drools 7.12.0.Final.
Download and install jdk latest version 1.8 or above

Download and copy the workbench and kie-server files

Download kie-workbench.

Copy the war file kie-drools-wb-7.12.0.Final-wildfly11.war to {wildfly}/standalone/deployments

Download and extract the drools engine distribution file

Copy the file kie-server-7.12.0.Final-ee7.war from extracted directory to {wildfly}/standalone/deployments

Set up wildfly server

Create user kieserver by running the following command from {wildfly}/bin

./add-user.sh -a -u kieserver -p kieserver -ro admin,kie-server,rest-all,kiemgmt

Locate and edit standalone.conf (or standalone.conf.bat for windows based systems) file under {wildfly}/bin directory

Increase the java heap size and MaxMetaspaceSize to suit your needs.

     JAVA_OPTS="-Xms1024m -Xmx1024m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=1024m -Djava.net.preferIPv4Stack=true"

Create a script e.g. start-drools.sh under {wildfly}/bin and copy the following into this file.

 SERVER_CONFIG="--server-config=standalone-full.xml"
 KIE_SERVER_USER="-Dorg.kie.server.user=kieserver"
 KIE_SERVER_PWD="-Dorg.kie.server.pwd=kieserver"
 KIE_CONTROLLER_USER="-Dorg.kie.server.controller.user=kieserver"
 KIE_CONTROLLER_PWD="-Dorg.kie.server.controller.pwd=kieserver"
 KIE_CONTROLLER_URL="http://localhost:8080/kie-drools-wb-7.12.0.Final-wildfly11/rest/controller"
 KIE_SERVER_URL="http://localhost:8080/kie-server-7.12.0.Final-ee7/services/rest/server"
 KIE_SERVER="-Dorg.kie.server.location=$KIE_SERVER_URL"
 KIE_CONTROLLER="-Dorg.kie.server.controller=$KIE_CONTROLLER_URL"
 KIE_SERVER_ID="-Dorg.kie.server.id=wildfly-kieserver"

 PARAMS="$SERVER_CONFIG $KIE_SERVER_USER $KIE_SERVER_PWD $KIE_CONTROLLER_USER $KIE_CONTROLLER_PWD $KIE_SERVER $KIE_CONTROLLER $KIE_SERVER_ID"

echo "Starting drools with PARAMS: $PARAMS" 
./standalone.sh $PARAMS

Change the file permissions to allow execute and start the script. ./start-drools.sh
Go to URL using your browser http://localhost:8080/kie-drools-wb-7.12.0.Final-wildfly11/ and login using Username kieserver and password kieserver

Simple Java Program to connect to Drools Kie Server and execute rules

Refer to sample program at https://github.com/sompammar/drools-kieserver-restclient for help with creating a sample java application using drools rest api client

References

The above steps were borrowed and adapted for latest version of drools from this link. https://www.intertech.com/Blog/simple-setup-of-drools-kie-workbench-and-kie-server-in-one-wildfly-instance/