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Chapter 7. Installing and running the headless Process Automation Manager controller

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

Business Central has an embedded Process Automation Manager controller. If you install Business Central, use the Execution Server page to create and maintain KIE containers. If you want to automate Process Server management without Business Central, you can use the headless Process Automation Manager controller.

Process Server can be managed by the Process Automation Manager controller or it can be unmanaged. If Process Server is unmanaged, you must manually create and maintain KIE containers (deployment units). If Process Server is managed, the Process Automation Manager controller manages the Process Server configuration and you interact with the Process Automation Manager controller to create and maintain KIE containers.

The Process Automation Manager controller is integrated with Business Central. If you install Business Central, you can use the Execution Server page in Business Central to interact with the Process Automation Manager controller.

You can use the installer in interactive or CLI mode to install Business Central and Process Server, and then configure Process Server with the Process Automation Manager controller.

Note

If you do not install Business Central, see Chapter 7, Installing and running the headless Process Automation Manager controller for information about using the headless Process Automation Manager controller.

Prerequisites

  • Two computers with backed-up Red Hat JBoss EAP 7.2 or higher server installations are available.
  • Sufficient user permissions to complete the installation are granted.

Procedure

  1. On the first computer, run the installer in interactive mode or CLI mode. See Installing and configuring Red Hat Process Automation Manager on Red Hat JBoss EAP 7.2 for more information.
  2. On the Component Selection page, clear the Process Server box.
  3. Complete the Business Central installation.
  4. On the second computer, run the installer in interactive mode or CLI mode.
  5. On the Component Selection page, clear the Business Central box.
  6. On the Configure Runtime Environment page, select Perform Advanced Configuration.
  7. Select Customize Process Server properties and click Next.
  8. On the Process Server Properties Configuration page, click New Server Configuration to add a Process Server and specify a unique name for that Process Server. This name will appear in Business Central and enable you to distinguish between different Process Servers.

You can install the headless Process Automation Manager controller and use the REST API or the Process Server Java Client API to interact with it.

Prerequisites

  • A backed-up Red Hat JBoss EAP installation version 7.2 or higher is available. The base directory of the Red Hat JBoss EAP installation is referred to as EAP_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: Process Automation Manager
    • Version: 7.3
  2. Download Red Hat Process Automation Manager 7.3.0 Add Ons (the rhpam-7.3.0-add-ons.zip file).
  3. Unzip the rhpam-7.3.0-add-ons.zip file. The rhpam-7.3-controller-ee7.zip file is in the unzipped directory.
  4. Extract the rhpam-7.3-controller-ee7 archive to a temporary directory. In the following examples this directory is called TEMP_DIR.

  5. Copy the TEMP_DIR/rhpam-7.3-controller-ee7/controller.war directory to EAP_HOME/standalone/deployments/.

    Warning

    Ensure that the names of the headless Process Automation Manager controller deployments you are copying do not conflict with your existing deployments in the Red Hat JBoss EAP instance.

  6. Copy the contents of the TEMP_DIR/rhpam-7.3-controller-ee7/SecurityPolicy/ directory to EAP_HOME/bin. When asked to overwrite files, select Yes.
  7. In the EAP_HOME/standalone/deployments/ directory, create an empty file named controller.war.dodeploy. This file ensures that the headless Process Automation Manager controller is automatically deployed when the server starts.

Before you can use the headless Process Automation Manager controller, you must create a user that has the kie-server role.

Prerequisites

  • The headless Process Automation Manager controller is installed in the base directory of the Red Hat JBoss EAP installation (EAP_HOME).

Procedure

  1. In a terminal application, navigate to the EAP_HOME/bin directory.

  2. Enter the following command and replace <USER_NAME> and <PASSWORD> with the user name and password of your choice. 

    $ ./add-user.sh -a --user <USER_NAME> --password <PASSWORD> --role kie-server
    Copy to Clipboard Toggle word wrap
    Note

    Make sure that the specified user name is not the same as an existing user, role, or group. For example, do not create a user with the user name admin.

    The password must have at least eight characters and must contain at least one number and one non-alphanumeric character, but not & (ampersand).

  3. Make a note of your user name and password.

If Process Server will be managed by the headless Process Automation Manager controller, you must edit the standalone-full.xml file in Process Server installation and the standalone.xml file in the headless Process Automation Manager controller installation, as described in this section.

Prerequisites

  • Process Server is installed in the base directory of the Red Hat JBoss EAP installation (EAP_HOME).

  • The headless Process Automation Manager controller is installed in an EAP_HOME.

    Note

    You should install Process Server and the headless Process Automation Manager controller on different servers in production environments. However, if you install Process Server and the headless Process Automation Manager controller on the same server, for example in a development environment, make these changes in the shared standalone-full.xml file.

  • On Process Server nodes, a user with the kie-server role exists.

  • On the server nodes, a user with the kie-server role exists.

    Procedure

    1. In the EAP_HOME/standalone/configuration/standalone-full.xml file, add the following properties to the <system-properties> section and replace <USERNAME> and <USER_PWD> with the credentials of a user with the kie-server role: 

         <property name="org.kie.server.user" value="<USERNAME>"/>
   <property name="org.kie.server.pwd" value="<USER_PWD>"/>
      Copy to Clipboard Toggle word wrap

    2. In the Process Server EAP_HOME/standalone/configuration/standalone-full.xml file, add the following properties to the <system-properties> section: 

        <property name="org.kie.server.controller.user" value="<CONTROLLER_USER>"/>
  <property name="org.kie.server.controller.pwd" value="<CONTROLLER_PWD>"/>
  <property name="org.kie.server.id" value="<KIE_SERVER_ID>"/>
  <property name="org.kie.server.location" value="http://<HOST>:<PORT>/kie-server/services/rest/server"/>
  <property name="org.kie.server.controller" value="<CONTROLLER_URL>"/>
      Copy to Clipboard Toggle word wrap
    3. In this file, replace the following values:
  • Replace <CONTROLLER_USER> and <CONTROLLER_PWD> with the credentials of a user with the kie-server role.
  • Replace <KIE_SERVER_ID> with the ID or name of the Process Server installation, for example, rhpam-7.3.0-process_server-1.
  • Replace <HOST> with the ID or name of the Process Server host, for example, localhost or 192.7.8.9.

  • Replace <PORT> with the port of the Process Server host, for example, 8080.

    Note

    The org.kie.server.location property specifies the location of Process Server.

  • Replace <CONTROLLER_URL> with the URL of the headless Process Automation Manager controller.

    1. Process Server connects to this URL during startup.

After you have installed the headless Process Automation Manager controller on Red Hat JBoss EAP, use this procedure to run the headless Process Automation Manager controller.

Prerequisites

  • The headless Process Automation Manager controller is installed and configured in the base directory of the Red Hat JBoss EAP installation (EAP_HOME).

Procedure

  1. In a terminal application, navigate to EAP_HOME/bin.

  2. If you installed the headless Process Automation Manager controller on the same Red Hat JBoss EAP instance as the Red Hat JBoss EAP instance where you installed the Process Server, enter one of the following commands:

    • On Linux or UNIX-based systems: 

      $ ./standalone.sh -c standalone-full.xml
      Copy to Clipboard Toggle word wrap

    • On Windows: 

      standalone.bat -c standalone-full.xml
      Copy to Clipboard Toggle word wrap

  3. If you installed the headless Process Automation Manager controller on a separate Red Hat JBoss EAP instance from the Red Hat JBoss EAP instance where you installed the Process Server, you can start the headless Process Automation Manager controller with the standalone.sh script:

    Note

    In this case, ensure that you made all required configuration changes to the standalone.xml file.

    • On Linux or UNIX-based systems: 

      $ ./standalone.sh
      Copy to Clipboard Toggle word wrap

    • On Windows: 

      standalone.bat
      Copy to Clipboard Toggle word wrap

  4. To verify that the headless Process Automation Manager controller is working on Red Hat JBoss EAP, enter the following command where <CONTROLLER> and <CONTROLLER_PWD> is the user name and password. The output of this command provides information about the Process Server instance. 

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

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

The Process Automation Manager controller is integrated with Business Central. However, if you do not install Business Central, you can install the headless Process Automation Manager controller and use the REST API or the Process Server Java Client API to interact with it.

Prerequisites

  • A backed-up Red Hat JBoss EAP installation version 7.2 or later is available. The base directory of the Red Hat JBoss EAP installation is referred to as EAP_HOME.
  • Sufficient user permissions to complete the installation are granted.
  • An NFS server with a mounted partition is available.

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: Process Automation Manager
    • Version: 7.3
  2. Download Red Hat Process Automation Manager 7.3.0 Add Ons (the rhpam-7.3.0-add-ons.zip file).
  3. Unzip the rhpam-7.3.0-add-ons.zip file. The rhpam-7.3-controller-ee7.zip file is in the unzipped directory.
  4. Extract the rhpam-7.3-controller-ee7 archive to a temporary directory. In the following examples this directory is called TEMP_DIR.

  5. Copy the TEMP_DIR/rhpam-7.3-controller-ee7/controller.war directory to EAP_HOME/standalone/deployments/.

    Warning

    Ensure that the names of the headless Process Automation Manager controller deployments you are copying do not conflict with your existing deployments in the Red Hat JBoss EAP instance.

  6. Copy the contents of the TEMP_DIR/rhpam-7.3-controller-ee7/SecurityPolicy/ directory to EAP_HOME/bin. When asked to overwrite files, select Yes.
  7. In the EAP_HOME/standalone/deployments/ directory, create an empty file named controller.war.dodeploy. This file ensures that the headless Process Automation Manager controller is automatically deployed when the server starts.
  8. Open the EAP_HOME/standalone/configuration/standalone.xml file in a text editor.

  9. Add the following properties to the <system-properties> element and replace <NFS_STORAGE> with the absolute path to the NFS storage where the template configuration is stored: 

    <system-properties>
  <property name="org.kie.server.controller.templatefile.watcher.enabled" value="true"/>
  <property name="org.kie.server.controller.templatefile" value="<NFS_STORAGE>"/>
</system-properties>
    Copy to Clipboard Toggle word wrap

    If the value of the org.kie.server.controller.templatefile.watcher.enabled property is set to true, a separate thread is started to watch for modifications of the template file. The default interval for these checks is 30000 milliseconds and can be further controlled by the org.kie.server.controller.templatefile.watcher.interval system property. If the value of this property is set to false, changes to the template file are detected only when the server restarts.

  10. To start the headless Process Automation Manager controller, navigate to EAP_HOME/bin and enter the following command:

    • On Linux or UNIX-based systems: 

      $ ./standalone.sh
      Copy to Clipboard Toggle word wrap

    • On Windows: 

      standalone.bat
      Copy to Clipboard Toggle word wrap

For more information about running Red Hat Process Automation Manager in a Red Hat JBoss Enterprise Application Platform clustered environment, see Installing and configuring Red Hat Process Automation Manager in a Red Hat JBoss EAP clustered environment.

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