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Chapter 6. Downloading and installing the headless Decision Manager controller

You can configure Decision Server to run in managed or unmanaged mode. If Decision Server is unmanaged, you must manually create and maintain KIE containers (deployment units). If Decision Server is managed, the Decision Manager controller manages the Decision Server configuration and you interact with the Decision Manager controller to create and maintain KIE containers.

The Decision Manager controller is integrated with Decision Central. If you install Decision Central, use the Execution Server page to create and maintain KIE containers. However, if you do not install Decision Central, you can install the headless Decision Manager controller and use the REST API or the Decision Server Java Client API to interact with it.

Prerequisites

  • A Red Hat JBoss Web Server 5.0.1 or higher server installation is available. The base directory of the Red Hat JBoss Web Server installation is referred to as JWS_HOME.
  • Sufficient user permissions to complete the installation are granted.

Procedure

  1. Navigate to the Software Downloads page in the Red Hat Customer Portal (login required), and select the product and version from the drop-down options:

    • Product: Decision Manager
    • Version: 7.2
  2. Download Red Hat Decision Manager 7.2.0 Add Ons (the rhdm-7.2.0-add-ons.zip file).
  3. Unzip the rhdm-7.2.0-add-ons.zip file. The rhdm-7.2-controller-jws.zip file is in the unzipped directory.
  4. Extract the rhdm-7.2-controller-jws.zip archive to a temporary directory. In the following examples this directory is called TEMP_DIR.
  5. Copy the TEMP_DIR/rhdm-7.2-controller-jws.zip/controller.war directory to the JWS_HOME/tomcat/webapps directory.

    Note

    Ensure the names of the Red Hat Decision Manager deployments you are copying do not conflict with your existing deployments in the Red Hat JBoss Web Server instance.

  6. Remove the .war extensions from the controller.war folder.
  7. Copy the contents of the TEMP_DIR/rhdm-7.2-controller-jws/SecurityPolicy/ directory to JWS_HOME/bin. When asked to overwrite files, select Yes.
  8. Add the kie-server role and user to the JWS_HOME/tomcat/conf/tomcat-users.xml file. In the following example, <USERNAME> and <PASSWORD> are the user name and password of your choice:

    <role rolename="kie-server"/>
    <user username="<USER_NAME>" password="<PASSWORD>" roles="kie-server"/>
  9. Complete one of the following tasks in the JWS_HOME/tomcat/bin directory of the instance running Decision Server:

    • On Linux or UNIX, create the setenv.sh file with the following content:

      CATALINA_OPTS="-Xmx1024m
       -Dorg.jbpm.server.ext.disabled=true
       -Dorg.jbpm.ui.server.ext.disabled=true
       -Dorg.jbpm.case.server.ext.disabled=true
       -Dorg.kie.server.controller.user=<CONTROLLER_USER>
       -Dorg.kie.server.controller.pwd=<CONTROLLER_PWD>
       -Dorg.kie.server.id=<KIE_SERVER_ID>
       -Dorg.kie.server.location=http://<HOST>:<PORT>/kie-server/services/rest/server
       -Dorg.kie.server.controller=http://<HOST>:<PORT>/controller/rest/controller"
    • On Windows, add the following content to the setenv.bat file:

      set CATALINA_OPTS= -Xmx1024m
       -Dorg.jbpm.server.ext.disabled=true
       -Dorg.jbpm.ui.server.ext.disabled=true
       -Dorg.jbpm.case.server.ext.disabled=true
       -Dorg.kie.server.controller.user=<CONTROLLER_USER>
       -Dorg.kie.server.controller.pwd=<CONTROLLER_PWD>
       -Dorg.kie.server.id=<KIE_SERVER_ID>
       -Dorg.kie.server.location=http://<HOST>:<PORT>/kie-server/services/rest/server
       -Dorg.kie.server.controller=http://<HOST>:<PORT>/controller/rest/controller
  10. In the JWS_HOME/tomcat/bin directory of the instance running the headless Decision Manager controller, create a readable setenv.sh file with the following content:

    CATALINA_OPTS="-Dorg.kie.server.user=<USERNAME> -Dorg.kie.server.pwd=<USER_PWD>"

  11. To start the headless Decision Manager controller, enter one of the following commands in the JWS_HOME/tomcat/bin directory:

    • On Linux or UNIX-based systems:

      $ ./startup.sh
    • On Windows:

      startup.bat
  12. After a few minutes, review the JWS_HOME/tomcat/logs directory and correct any errors.
  13. To verify that the headless Decision Manager controller is working on Red Hat JBoss Web Server, enter the following command. In this command, replace <CONTROLLER> and <CONTROLLER_PWD> with the values in the tomcat-users.xml file. The output of this command provides information about the Decision Server instance.

    curl -X GET "http://<HOST>:<PORT>/controller/rest/controller/management/servers" -H  "accept: application/xml" -u '<CONTROLLER>:<CONTROLLER_PWD>'
Note

Alternatively, you can use the Decision Server Java API Client to access the headless Decision Manager controller.