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Integrating Red Hat Decision Manager with Red Hat Single Sign-On

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Red Hat Decision Manager 7.3

Red Hat Customer Content Services

Abstract

This document describes how to integrate Red Hat Single Sign-On with Red Hat Decision Manager to provide a single secure authentication method.

Preface

As a system administrator, you can integrate Red Hat Single Sign-On with Red Hat Decision Manager to secure your Red Hat Decision Manager browser applications with a single authentication method.

Prerequisites

Chapter 1. Integration Options

Red Hat Single Sign-On (RH-SSO) is a single sign-on solution that you can use to secure your browser applications with your REST web services and Git access.

When you integrate Red Hat Decision Manager with RH-SSO, you create an SSO and identity management (IDM) environment for Red Hat Decision Manager. The session management feature of RH-SSO enables you to use a single authentication for different Red Hat Decision Manager environments on the internet.

The following chapters describe how you can integrate RH-SSO with Red Hat Decision Manager:

  • Chapter 4, Authenticating Business Central through RH-SSO

    To authenticate Red Hat Decision Manager through an RH-SSO server, you must secure both the Red Hat Decision Manager web client (Business Central) and remote services through RH-SSO.This integration enables you to connect to Red Hat Decision Manager through RH-SSO using either Business Central or a remote service consumer.

  • Chapter 5, Authenticating Decision Server through RH-SSO

    To authenticate Decision Server through an RH-SSO server, you must secure the remote services provided by Decision Server. Doing this enables any remote Red Hat Decision Manager service consumer (user or a service) to authenticate through RH-SSO. Note that Decision Server does not have a web interface.

  • Chapter 6, Authenticating third-party clients through RH-SSO

    If Business Central or Decision Server are using RH-SSO, third-party clients must authenticate themselves using RH-SSO. After authentication, they can consume the remote service endpoints provided by Business Central and Decision Server, such as the REST API or remote file system services.

To facilitate LDAP integration with Red Hat Decision Manager, consider using RH-SSO with LDAP. For information, see the Red Hat Single Sign-On Getting Started Guide.

Chapter 2. Installing and configuring RH-SSO

A realm is a security policy domain defined for a web or application server. Security realms are used to restrict access for different application resources. You should create a new realm whether your RH-SSO instance is private or shared with other products. You can keep the master realm as a place for super administrators to create and manage the realms in your system. If you are integrating with an RH-SSO instance that is shared with other product installations to achieve single sign-on with those applications, all of those applications must use the same realm. To create an RH-SSO realm, download, install, and configure RH-SSO 7.2.

Note

If Business Central and Decision Server are installed on different servers, complete this procedure on both servers.

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: Red Hat Single Sign-On
    • Version: 7.2
  2. Download Red Hat Single Sign-on 7.2.0 Server (rh-sso-7.2.0.zip).

  3. To install and configure a basic RH-SSO standalone server, follow the instructions in the "Installing and Booting" chapter of the Red Hat Single Sign On Getting Started Guide. For advanced settings for production environments, see the Red Hat Single Sign On Server Administration Guide.

    Note

    If you want to run both RH-SSO and Red Hat Decision Manager servers on the same system, ensure that you avoid port conflicts. by doing one of the following:

    • Update the RHSSO_HOME/standalone/configuration/standalone.xml file and set a port offset to 100. For example: 

      <socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:100}">

    • Use an environment variable to run the server: 

      bin/standalone.sh -Djboss.socket.binding.port-offset=100

Chapter 3. Adding Red Hat Decision Manager users

Before you can use RH-SSO to authenticate Business Central or Decision Server, you must add users to the realm that you created. To add new users and assign them a role to access Red Hat Decision Manager, complete the following steps:

  1. Log in to the RH-SSO Admin Console and open the realm that you want to add a user to.

  2. Click the Users menu item under the Manage section.

    An empty user list appears on the Users page.

  3. Click the Add User button on the empty user list to start creating your new user.

    The Add User page opens.

  4. On the Add User page, enter the user information and click Save.
  5. Click the Credentials tab and create a password.
  6. Assign the new user one of the roles that allow access to Red Hat Decision Manager. For example, assign the admin role to access Business Central or assign the kie-server role to access Decision Server.
  7. Define the roles as realm roles in the Realm Roles tab under the Roles section.
  8. Click the Role Mappings tab on the Users page to assign roles.

Chapter 4. Authenticating Business Central through RH-SSO

This chapter describes how to authenticate Business Central through RH-SSO. It includes the following sections:

Prerequisites

4.1. Creating the Business Central client for RH-SSO

After the RH-SSO server starts, open http://localhost:8180/auth/admin in a web browser and log in using the admin credentials that you created while installing RH-SSO. When you login for the first time, you can set up the initial user on the new user registration form.

  1. In the RH-SSO Admin Console, click the Realm Settings menu item.

  2. On the Realm Settings page, click Add Realm.

    The Add realm page opens.

  3. On the Add realm page, provide a name for the realm and click Create.

  4. Click the Clients menu item and click Create.

    The Add Client page opens.

  5. On the Add Client page, provide the required information to create a new client for your realm. For example:

    • Client ID: kie
    • Client protocol: openid-connect
    • Root URL: http://localhost:8080/decision-central

  6. Click Save to save your changes.

    After you create a new client, its Access Type is set to public by default. Change it to confidential.

    The RH-SSO server is now configured with a realm with a client for Business Central applications and running and listening for HTTP connections at localhost:8180. This realm provides different users, roles, and sessions for Business Central applications.

4.2. Installing the RH-SSO client adapter for Business Central

After you install RH-SSO, you must install the RH-SSO client adapter for Red Hat JBoss EAP and configure it for Business Central.

Prerequisites

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: Red Hat Single Sign-On
    • Version: 7.2
  2. Download Red Hat Single Sign-on 7.2.0 Client Adapter for JBoss EAP 7 (rh-sso-7.2.0-eap7-adapter.zip).
  3. Unzip and install rh-sso-7.2.0-eap7-adapter.zip. For installation instructions, see the "JBoss EAP Adapter" section of the Red Hat Single Sign On Securing Applications and Services Guide.
  4. Go to EAP_HOME/standalone/configuration and open the standalone.xml and standalone-full.xml files.
  5. Delete the <single-sign-on/> element from both of the files.

  6. Navigate to the EAP_HOME/standalone/configuration directory in your Red Hat JBoss EAP installation and edit the standalone.xml and standalone-full.xml files to add the RH-SSO subsystem configuration. For example: 

    <subsystem xmlns="urn:jboss:domain:keycloak:1.1">
 <secure-deployment name="decision-central.war">
   <realm>demo</realm>
   <realm-public-key>MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrVrCuTtArbgaZzL1hvh0xtL5mc7o0NqPVnYXkLvgcwiC3BjLGw1tGEGoJaXDuSaRllobm53JBhjx33UNv+5z/UMG4kytBWxheNVKnL6GgqlNabMaFfPLPCF8kAgKnsi79NMo+n6KnSY8YeUmec/p2vjO2NjsSAVcWEQMVhJ31LwIDAQAB</realm-public-key>
   <auth-server-url>http://localhost:8180/auth</auth-server-url>
   <ssl-required>external</ssl-required>
   <enable-basic-auth>true</enable-basic-auth>
   <resource>kie</resource>
   <credential name="secret">759514d0-dbb1-46ba-b7e7-ff76e63c6891</credential>
   <principal-attribute>preferred_username</principal-attribute>
 </secure-deployment>
</subsystem>

    In this example:

    • secure-deployment name is the name of your application’s WAR file.
    • realm is the name of the realm that you created for the applications to use.
    • realm-public-key is the public key of the realm you created. You can find the key in the Keys tab in the Realm settings page of the realm you created in the RH-SSO Admin Console. If you do not provide a value for realm-public-key, the server retrieves it automatically.
    • auth-server-url is the URL for the RH-SSO authentication server.
    • enable-basic-auth is the setting to enable basic authentication mechanism, so that the clients can use both token-based and basic authentication approaches to perform the requests.
    • resource is the name for the client that you created.
    • credential name is the secret key for the client you created. You can find the key in the Credentials tab on the Clients page of the RH-SSO Admin Console.

    • principal-attribute is the login name of the user. If you do not provide this value, your User Id is displayed in the application instead of your user name.

      Note

      The RH-SSO server converts the user names to lower case. Therefore, after integration with RH-SSO, your user name will appear in lower case in Red Hat Decision Manager. If you have user names in upper case hard coded in business processes, the application might not be able to identify the upper case user.

  7. Navigate to EAP_HOME/bin/ and enter the following command to start the Red Hat JBoss EAP server: 

    ./standalone.sh -c standalone-full.xml
Note

You can also configure the RH-SSO adapter for Business Central by updating your application’s WAR file to use the RH-SSO security subsystem. However, Red Hat recommends that you configure the adapter through the RH-SSO subsystem. Doing this updates the Red Hat JBoss EAP configuration instead of applying the configuration on each WAR file.

4.3. Securing Business Central remote service using RH-SSO

Business Central provides different remote service endpoints that can be consumed by third-party clients using a remote API. To authenticate those services through RH-SSO, you must disable the BasicAuthSecurityFilter parameter.

Procedure

  1. Open the Business Central application deployment descriptor file (WEB-INF/web.xml) and apply the following changes to it:

    • Remove the following lines to remove the servlet filter and its mapping for class org.uberfire.ext.security.server.BasicAuthSecurityFilter: 

      <filter>
  <filter-name>HTTP Basic Auth Filter</filter-name>
  <filter-class>org.uberfire.ext.security.server.BasicAuthSecurityFilter</filter-class>
  <init-param>
    <param-name>realmName</param-name>
    <param-value>Business Central Realm</param-value>
  </init-param>
</filter>

<filter-mapping>
  <filter-name>HTTP Basic Auth Filter</filter-name>
  <url-pattern>/rest/*</url-pattern>
  <url-pattern>/maven2/*</url-pattern>
  <url-pattern>/ws/*</url-pattern>
</filter-mapping>

    • Add the following lines to add the security-constraint parameter for the url-patterns that you have removed from the filter mapping: 

      <security-constraint>
  <web-resource-collection>
    <web-resource-name>remote-services</web-resource-name>
    <url-pattern>/rest/*</url-pattern>
    <url-pattern>/maven2/*</url-pattern>
    <url-pattern>/ws/*</url-pattern>
  </web-resource-collection>
  <auth-constraint>
    <role-name>rest-all</role-name>
    <role-name>rest-project</role-name>
    <role-name>rest-deployment</role-name>
    <role-name>rest-process</role-name>
    <role-name>rest-process-read-only</role-name>
    <role-name>rest-task</role-name>
    <role-name>rest-task-read-only</role-name>
    <role-name>rest-query</role-name>
    <role-name>rest-client</role-name>
  </auth-constraint>
</security-constraint>
  2. Save your changes.

4.4. Securing Business Central file system services using RH-SSO

To consume other remote services such as file systems (for example, a remote GIT service), you must specify the correct RH-SSO login module.

Procedure

  1. Generate a JSON configuration file:

    1. Navigate to the RH-SSO Admin Console located at http://localhost:8180/auth/admin.
    2. Click Clients.

    3. Create a new client with the following settings:

      • Set Client ID as kie-git.
      • Set Access Type as confidential.
      • Disable the Standard Flow Enabled option.
      • Enable the Direct Access Grants Enabled option.
      kie git client settings
    4. Click Save.
    5. Click the Installation tab at the top of the client configuration screen and choose Keycloak OIDC JSON as a Format Option.
    6. Click Download.
  2. Move the downloaded JSON file to an accessible directory in the server’s file system or add it to the application class path.

  3. Specify the correct RH-SSO login module in the EAP_HOME/standalone/configuration/standalone.xml and standalone-full.xml files. By default, the security domain in Red Hat Decision Manager is set to other. Replace the default values of the login-module in this security domain with the values in the following example: 

    <security-domain name="other" cache-type="default">
  <authentication>
    <login-module code="org.keycloak.adapters.jaas.DirectAccessGrantsLoginModule" flag="required">
      <module-option name="keycloak-config-file" value="$EAP_HOME/kie-git.json"/>
    </login-module>
  </authentication>
</security-domain>

  4. The JSON file specified in the module-option element contains a client used for securing the remote services. Replace the $EAP_HOME/kie-git.json value of the module-option element with the absolute path or the class path (classpath:/EXAMPLE_PATH/kie-git.json) to this JSON configuration file.

    At this point, all users authenticated through the RH-SSO server can clone internal GIT repositories. In the following command, change USER_NAME to a RH-SSO user, for example admin: 

    git clone ssh://USER_NAME@localhost:8001/system

4.5. Enabling user and group management for RH-SSO

This section describes how you can configure Business Central to manage users and groups stored in RH-SSO.

Procedure

  1. Ensure that the following libraries are in the WEB-INF/lib directory: 

    uberfire-security-management-api-<latest_artifact_version>.jar
uberfire-security-management-backend-<latest_artifact_version>.jar
uberfire-security-management-keycloak-<latest_artifact_version>.jar
keycloak-core-<latest_artifact_version>.jar
keycloak-common-<latest_artifact_version>.jar

  2. Remove third-party security JAR files, for example: 

    uberfire-security-management-wildfly-<latest_artifact_version>.jar
uberfire-security-management-tomcat-<latest_artifact_version>.jar

  3. Replace the entire contents of the WEB-INF/classes/security-management.properties file with the following content: 

    org.uberfire.ext.security.management.api.userManagementServices=KCAdapterUserManagementService
org.uberfire.ext.security.management.keycloak.authServer=http://localhost:8180/auth
    Note

    If the WEB-INF/classes/security-management.properties file does not exist, create it.

  4. Edit the following dependencies and exclusions in the /META-INF/jboss-deployment-structure.xml file: 

    <dependencies>
    <module name="org.jboss.resteasy.resteasy-jackson-provider" services="import"/>
</dependencies>
<exclusions>
    <module name="org.jboss.resteasy.resteasy-jackson2-provider"/>
    <module name="com.fasterxml.jackson.datatype.jackson-datatype-jsr310"/>
</exclusions>

Chapter 5. Authenticating Decision Server through RH-SSO

Decision Server provides a REST API for third-party clients. If you integrate Decision Server with RH-SSO, you can delegate third-party client identity management to the RH-SSO server.

After you create a realm client for Red Hat Decision Manager and set up the RH-SSO client adapter for Red Hat JBoss EAP, you can set up RH-SSO authentication for Decision Server.

Prerequisites

This chapter contains the following sections:

5.1. Creating the Decision Server client on RH-SSO

Use the RH-SSO Admin Console to create a Decision Server client in an exiting realm.

Prerequisites

Procedure

  1. In the RH-SSO Admin Console, open the security realm that you created in Chapter 2, Installing and configuring RH-SSO.

  2. Click Clients and click Create.

    The Add Client page opens.

  3. On the Add Client page, provide the required information to create a Decision Server client for your realm, then click Save. For example:

    • Client ID: kie-execution-server
    • Root URL: \http://localhost:8080/kie-server
    • Client protocol: openid-connect
  4. The new client Access Type is set to public by default. Change it to confidential and click Save again.
  5. Navigate to the Credentials tab and copy the secret key. The secret key is required to configure the kie-execution-server client.

5.2. Installing and configuring Decision Server with the client adapter

After you install RH-SSO, you must install the RH-SSO client adapter for Red Hat JBoss EAP and configure it for Decision Server.

Prerequisites

Note

If you deployed Decision Server to a different application server than Business Central, install and configure RH-SSO on your second server as well.

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: Red Hat Single Sign-On
    • Version: 7.2
  2. Download Red Hat Single Sign-on 7.2.0 Client Adapter for JBoss EAP 7 (rh-sso-7.2.0-eap7-adapter.zip).
  3. Unzip and install rh-sso-7.2.0-eap7-adapter.zip. For installation instructions, see the "JBoss EAP Adapter" section of the Red Hat Single Sign On Securing Applications and Services Guide.
  4. Go to EAP_HOME/standalone/configuration and open the standalone.xml and standalone-full.xml files.
  5. Delete the <single-sign-on/> element from both of the files.
  6. Navigate to EAP_HOME/standalone/configuration directory in your Red Hat JBoss EAP installation and edit the standalone.xml file to add the RH-SSO subsystem configuration. For example:

  7. Navigate to EAP_HOME/standalone/configuration in your Red Hat JBoss EAP installation and edit the standalone.xml and standalone-full.xml files to add the RH-SSO subsystem configuration. For example: 

    <subsystem xmlns="urn:jboss:domain:keycloak:1.1">
  <secure-deployment name="kie-execution-server.war">
     <realm>demo</realm>
     <realm-public-key>MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrVrCuTtArbgaZzL1hvh0xtL5mc7o0NqPVnYXkLvgcwiC3BjLGw1tGEGoJaXDuSaRllobm53JBhjx33UNv+5z/UMG4kytBWxheNVKnL6GgqlNabMaFfPLPCF8kAgKnsi79NMo+n6KnSY8YeUmec/p2vjO2NjsSAVcWEQMVhJ31LwIDAQAB</realm-public-key>
     <auth-server-url>http://localhost:8180/auth</auth-server-url>
     <ssl-required>external</ssl-required>
     <resource>kie-execution-server</resource>
     <enable-basic-auth>true</enable-basic-auth>
     <credential name="secret">03c2b267-7f64-4647-8566-572be673f5fa</credential>
     <principal-attribute>preferred_username</principal-attribute>
  </secure-deployment>
</subsystem>

<system-properties>
  <property name="org.kie.server.sync.deploy" value="false"/>
</system-properties>

    In this example:

    • secure-deployment name is the name of your application WAR file.
    • realm is the name of the realm that you created for the applications to use.
    • realm-public-key is the public key of the realm you created. You can find the key in the Keys tab in the Realm settings page of the realm you created in the RH-SSO Admin Console. If you do not provide a value for this public key, the server retrieves it automatically.
    • auth-server-url is the URL for the RH-SSO authentication server.
    • resource is the name for the server client that you created.
    • enable-basic-auth is the setting to enable basic authentication mechanism, so that the clients can use both token-based and basic authentication approaches to perform the requests.
    • credential name is the secret key of the server client you created. You can find the key in the Credentials tab on the Clients page of the RH-SSO Admin Console.
    • principal-attribute is the login name of the user. If you do not provide this value, your User Id is displayed in the application instead of your user name.
  8. Save your configuration changes.

  9. Use the following command to restart the Red Hat JBoss EAP server and run Decision Server. 

    EXEC_SERVER_HOME/bin/standalone.sh -Dorg.kie.server.id=<ID> -Dorg.kie.server.user=<USER> -Dorg.kie.server.pwd=<PWD> -Dorg.kie.server.location=<LOCATION_URL> -Dorg.kie.server.controller=<CONTROLLER_URL> -Dorg.kie.server.controller.user=<CONTROLLER_USER> -Dorg.kie.server.controller.pwd=<CONTOLLER_PASSWORD>

    For example: 

    EXEC_SERVER_HOME/bin/standalone.sh -Dorg.kie.server.id=kieserver1 -Dorg.kie.server.user=kieserver -Dorg.kie.server.pwd=password -Dorg.kie.server.location=http://localhost:8080/kie-execution-server/services/rest/server -Dorg.kie.server.controller=http://localhost:8080/decision-central/rest/controller -Dorg.kie.server.controller.user=kiecontroller -Dorg.kie.server.controller.pwd=password

  10. When Decision Server is running, enter the following command to check the server status, where <KIE_SERVER_USER> is a user with the kie-server role and <PASSWORD> is the password for that user: 

    curl http://<KIE_SERVER_USER>:<PASSWORD>@localhost:8080/kie-execution-server/services/rest/server/

5.3. Decision Server token-based authentication

You can also use token-based authentication for communication between Red Hat Decision Manager and Decision Server. You can use the complete token as a system property of your application server, instead of the user name and password, for your applications. However, you must ensure that the token will not expire while the applications are interacting because the token is not automatically refreshed. To get the token, see Section 6.2, “Token-based authentication”.

Procedure

  1. To configure Business Central to manage Decision Server using tokens:

    1. Set the org.kie.server.token property.

    2. Make sure that the org.kie.server.user and org.kie.server.pwd properties are not set.

      Red Hat Decision Manager will then use the Authorization: Bearer $TOKEN authentication method.

  2. To use the REST API using the token-based authentication:

    1. Set the org.kie.server.controller.token property.
    2. Make sure that the org.kie.server.controller.user and org.kie.server.controller.pwd properties are not set.
Note

Because Decision Server is unable to refresh the token, use a high-lifespan token. A token’s lifespan must not exceed January 19 2038. Check with your security best practices to see whether this is a suitable solution for your environment.

Chapter 6. Authenticating third-party clients through RH-SSO

To use the different remote services provided by Business Central or by Decision Server, your client, such as curl, wget, web browser, or a custom REST client, must authenticate through the RH-SSO server and have a valid token to perform the requests. To use the remote services, the authenticated user must have the following roles:

  • rest-all for using Business Central remote services.
  • kie-server for using the Decision Server remote services.

Use the RH-SSO Admin Console to create these roles and assign them to the users that will consume the remote services.

Your client can authenticate through RH-SSO using one of these options:

  • Basic authentication, if it is supported by the client
  • Token-based authentication

6.1. Basic authentication

If you enabled basic authentication in the RH-SSO client adapter configuration for both Business Central and Decision Server, you can avoid the token grant and refresh calls and call the services as shown in the following examples:

  • For web based remote repositories endpoint: 

    curl http://admin:password@localhost:8080/decision-central/rest/repositories

  • For Decision Server: 

    curl http://admin:password@localhost:8080/kie-execution-server/services/rest/server/

6.2. Token-based authentication

If you want a more secure option of authentication, you can consume the remote services from both Business Central and Decision Server by using a granted token provided by RH-SSO.

Procedure

  1. In the RH-SSO Admin Console, click the Clients menu item and click Create to create a new client.

    The Add Client page opens.

  2. On the Add Client page, provide the required information to create a new client for your realm. For example:

    • Client ID: kie-remote
    • Client protocol: openid-connect
  3. Click Save to save your changes.

  4. Change the token settings in Realm Settings:

    1. In the RH-SSO Admin Console, click the Realm Settings menu item.
    2. Click the Tokens tab.

    3. Change the value for Access Token Lifespan to 15 minutes.

      This gives you enough time to get a token and invoke the service before it expires.

    4. Click Save to save your changes.

  5. After a public client for your remote clients is created, you can now obtain the token by making an HTTP request to the RH-SSO server’s token endpoint using: 

    RESULT=`curl --data "grant_type=password&client_id=kie-remote&username=admin&password=password" http://localhost:8180/auth/realms/demo/protocol/openid-connect/token`

    The user in this command is a Business Central RH-SSO user. For more information, see Chapter 3, Adding Red Hat Decision Manager users.

  6. To view the token obtained from the RH-SSO server, use the following command: 

    TOKEN=`echo $RESULT | sed 's/.*access_token":"//g' | sed 's/".*//g'`

You can now use this token to authorize the remote calls. For example, if you want to check the internal Red Hat Decision Manager repositories, use the token as shown below: 

curl -H "Authorization: bearer $TOKEN" http://localhost:8080/decision-central/rest/repositories

Appendix A. Versioning information

Documentation last updated on Wednesday, May 8, 2019.

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