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Chapter 10. Environment with immutable servers

You can deploy an environment that includes one or more pods running immutable KIE Server with preloaded services. The database servers are, by default, also run in pods. Each KIE Server pod can be separately scaled as necessary.

On an immutable KIE Server, any services must be loaded onto the server at the time the image is created. You cannot deploy or undeploy services on a running immutable KIE Server. The advantage of this approach is that KIE Server with the services in it runs like any other containerized service and does not require specialized management. KIE Server runs like any other pod on the OpenShift environment; you can use any container-based integration workflows as necessary.

When you create a KIE Server image, you can build your services using S2I (Source to Image). Provide a Git repository with the source of your services and other business assets; if you develop the services or assets in Business Central, copy the source into a separate repository for the S2I build. OpenShift automatically builds the source, installs the services into the KIE Server image, and starts the containers with the services.

If you are using Business Central for authoring services, you can extract the source for your process and place it into a separate Git repository (such as GitHub or an on-premise installation of GitLab) for use in the S2I build.

Alternatively, you can create a similar KIE Server deployment using services that are already built as KJAR files. In this case, you must provide the services in a Maven repository. You can use the built-in repository of the Business Central or your own repository (for example, a Nexus deployment). When the server pod starts, it retrieves the KJAR services from the Maven repository. Services on the pod are never updated or changed. At every restart or scaling of the pod, the server retrieves the files from the repository, so you must ensure they do not change on the Maven repository to keep the deployment immutable.

With both methods of creating immutable images, no further management of the image is required. If you want to use a new version of a service, you can build a new image.

Optionally, you can add Business Central Monitoring and Smart Router to your environment. Use Business Central Monitoring to start, stop, and monitor services on KIE Servers.

10.1. Deploying Business Central Monitoring and Smart Router for an environment with immutable servers

You can deploy Business Central Monitoring and Smart Router for an environment with immutable servers.

You can use Business Central Monitoring to start and stop (but not deploy) services on your KIE Servers and to view monitoring data. The Business Central Monitoring automatically discovers any KIE Servers in the same namespace, including immutable KIE Servers and managed KIE Servers. This feature requires the OpenShiftStartupStrategy setting, which is enabled by default for all KIE Servers except those deployed in a fixed managed infrastructure. For instructions about deploying managed KIE Servers with the OpenShiftStartupStrategy setting enabled, see Section 11.2, “Deploying an additional managed KIE Server for a freeform environment”.

Smart Router is a single endpoint that can receive calls from client applications to any of your services and route each call automatically to the server that runs the service.

If you want to use Business Central Monitoring, you must provide a Maven repository. Your integration process must ensure that all the versions of KJAR files built into any KIE Server image are also available in the Maven repository.

10.1.1. Starting configuration of the template for monitoring and Smart Router

To deploy monitoring and Smart Router for an environment with immutable servers, use the rhpam712-immutable-monitor.yaml template file.

Procedure

  1. Download the rhpam-7.12.0-openshift-templates.zip product deliverable file from the Software Downloads page of the Red Hat Customer Portal.
  2. Extract the rhpam712-immutable-monitor.yaml template file.
  3. Use one of the following methods to start deploying the template:

    • To use the OpenShift Web UI, in the OpenShift application console select Add to Project → Import YAML / JSON and then select or paste the rhpam712-immutable-monitor.yaml file. In the Add Template window, ensure Process the template is selected and click Continue.
    • To use the OpenShift command line console, prepare the following command line:

      oc new-app -f <template-path>/rhpam712-immutable-monitor.yaml -p BUSINESS_CENTRAL_HTTPS_SECRET=businesscentral-app-secret -p PARAMETER=value

      In this command line, make the following changes:

      • Replace <template-path> with the path to the downloaded template file.
      • Use as many -p PARAMETER=value pairs as needed to set the required parameters.

Next steps

Set the parameters for the template. Follow the steps in Section 10.1.2, “Setting required parameters for monitoring and Smart Router” to set common parameters. You can view the template file to see descriptions for all parameters.

10.1.2. Setting required parameters for monitoring and Smart Router

When configuring the template to deploy monitoring and Smart Router for an environment with immutable servers, you must set the following parameters in all cases.

Prerequisites

Procedure

  1. Set the following parameters:

    • Credentials secret (CREDENTIALS_SECRET): The name of the secret containing the administrative user credentials, as created in Section 7.5, “Creating the secret for the administrative user”.
    • Business Central Monitoring Server Keystore Secret Name (BUSINESS_CENTRAL_HTTPS_SECRET): The name of the secret for Business Central, as created in Section 7.3, “Creating the secrets for Business Central”.
    • Smart Router Keystore Secret Name (KIE_SERVER_ROUTER_HTTPS_SECRET): The name of the secret for Smart Router, as created in Section 7.4, “Creating the secrets for Smart Router”.
    • Business Central Monitoring Server Certificate Name (BUSINESS_CENTRAL_HTTPS_NAME): The name of the certificate in the keystore that you created in Section 7.3, “Creating the secrets for Business Central”.
    • Business Central Monitoring Server Keystore Password (BUSINESS_CENTRAL_HTTPS_PASSWORD): The password for the keystore that you created in Section 7.3, “Creating the secrets for Business Central”.
    • Smart Router Certificate Name (KIE_SERVER_ROUTER_HTTPS_NAME): The name of the certificate in the keystore that you created in Section 7.4, “Creating the secrets for Smart Router”.
    • Smart Router Keystore Password (KIE_SERVER_ROUTER_HTTPS_PASSWORD): The password for the keystore that you created in Section 7.4, “Creating the secrets for Smart Router”.
    • Application Name (APPLICATION_NAME): The name of the OpenShift application. It is used in the default URLs for Business Central Monitoring and KIE Server. OpenShift uses the application name to create a separate set of deployment configurations, services, routes, labels, and artifacts.
    • Enable KIE server global discovery (KIE_SERVER_CONTROLLER_OPENSHIFT_GLOBAL_DISCOVERY_ENABLED): Set this parameter to true if you want Business Central Monitoring to discover all KIE Servers with the OpenShiftStartupStrategy in the same namespace. By default, Business Central Monitoring discovers only KIE Servers that are deployed with the same value of the APPLICATION_NAME parameter as Business Central Monitoring itself.
    • Maven repository URL (MAVEN_REPO_URL): A URL for a Maven repository. You must upload all the processes (KJAR files) that are to be deployed on any KIE Server instances in your environment into this repository.
    • Maven repository ID (MAVEN_REPO_ID): An identifier for the Maven repository. The default value is repo-custom.
    • Maven repository username (MAVEN_REPO_USERNAME): The user name for the Maven repository.
    • Maven repository password (MAVEN_REPO_PASSWORD): The password for the Maven repository.
    • ImageStream Namespace (IMAGE_STREAM_NAMESPACE): The namespace where the image streams are available. If the image streams were already available in your OpenShift environment (see Section 7.1, “Ensuring the availability of image streams and the image registry”), the namespace is openshift. If you have installed the image streams file, the namespace is the name of the OpenShift project.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.1.6, “Completing deployment of the template for monitoring and Smart Router”.

10.1.3. Configuring the image stream namespace for monitoring and Smart Router

If you created image streams in a namespace that is not openshift, you must configure the namespace in the template.

If all image streams were already available in your Red Hat OpenShift Container Platform environment, you can skip this procedure.

Prerequisites

Procedure

If you installed an image streams file according to instructions in Section 7.1, “Ensuring the availability of image streams and the image registry”, set the ImageStream Namespace (IMAGE_STREAM_NAMESPACE) parameter to the name of your OpenShift project.

10.1.4. Setting parameters for RH-SSO authentication for monitoring and Smart Router

If you want to use RH-SSO authentication, complete the following additional configuration when configuring the template to deploy monitoring and Smart Router for an environment with immutable servers.

Important

Do not configure LDAP authentication and RH-SSO authentication in the same deployment.

Prerequisites

  • A realm for Red Hat Process Automation Manager is created in the RH-SSO authentication system.
  • User names and passwords for Red Hat Process Automation Manager are created in the RH-SSO authentication system. For a list of the available roles, see Chapter 14, Red Hat Process Automation Manager roles and users.

    You must create a user with the username and password configured in the secret for the administrative user, as described in Section 7.5, “Creating the secret for the administrative user”. This user must have the kie-server,rest-all,admin roles.

  • Clients are created in the RH-SSO authentication system for all components of the Red Hat Process Automation Manager environment that you are deploying. The client setup contains the URLs for the components. You can review and edit the URLs after deploying the environment. Alternatively, the Red Hat Process Automation Manager deployment can create the clients. However, this option provides less detailed control over the environment.
  • You started the configuration of the template, as described in Section 10.1.1, “Starting configuration of the template for monitoring and Smart Router”.

Procedure

  1. Set the following parameters:

    • RH-SSO URL (SSO_URL): The URL for RH-SSO.
    • RH-SSO Realm name (SSO_REALM): The RH-SSO realm for Red Hat Process Automation Manager.
    • RH-SSO Disable SSL Certificate Validation (SSO_DISABLE_SSL_CERTIFICATE_VALIDATION): Set to true if your RH-SSO installation does not use a valid HTTPS certificate.
  2. Complete one of the following procedures:

    1. If you created the client for Red Hat Process Automation Manager within RH-SSO, set the following parameters in the template:

      • Business Central Monitoring RH-SSO Client name (BUSINESS_CENTRAL_SSO_CLIENT): The RH-SSO client name for Business Central Monitoring.
      • Business Central Monitoring RH-SSO Client Secret (BUSINESS_CENTRAL_SSO_SECRET): The secret string that is set in RH-SSO for the client for Business Central Monitoring.
    2. To create the clients for Red Hat Process Automation Manager within RH-SSO, set the following parameters in the template:

      • Business Central Monitoring RH-SSO Client name (BUSINESS_CENTRAL_SSO_CLIENT): The name of the client to create in RH-SSO for Business Central Monitoring.
      • Business Central Monitoring RH-SSO Client Secret (BUSINESS_CENTRAL_SSO_SECRET): The secret string to set in RH-SSO for the client for Business Central Monitoring.
      • RH-SSO Realm Admin Username (SSO_USERNAME) and RH-SSO Realm Admin Password (SSO_PASSWORD): The user name and password for the realm administrator user for the RH-SSO realm for Red Hat Process Automation Manager. You must provide this user name and password in order to create the required clients.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.1.6, “Completing deployment of the template for monitoring and Smart Router”.

After completing the deployment, review the URLs for components of Red Hat Process Automation Manager in the RH-SSO authentication system to ensure they are correct.

10.1.5. Setting parameters for LDAP authentication for monitoring and Smart Router

If you want to use LDAP authentication, complete the following additional configuration when configuring the template to deploy monitoring and Smart Router for an environment with immutable servers.

Important

Do not configure LDAP authentication and RH-SSO authentication in the same deployment.

Prerequisites

Procedure

  1. Set the AUTH_LDAP* parameters of the template. These parameters configure LDAP authentication using the Elytron subsystem of Red Hat JBoss EAP. For more information about using the Elytron subsystem of Red Hat JBoss EAP with LDAP, see Configure Authentication with an LDAP-Based Identity Store.

    Note

    If you want to enable LDAP failover, you can put set or more LDAP server addresses in the AUTH_LDAP_URL parameter, separated by a space.

    If the LDAP server does not define all the roles required for your deployment, you can map LDAP groups to Red Hat Process Automation Manager roles. To enable LDAP role mapping, set the following parameters:

    • RoleMapping rolesProperties file path or one lined roles (AUTH_ROLE_MAPPER_ROLES_PROPERTIES): The fully qualified path name of a file that defines role mapping, for example /opt/eap/standalone/configuration/rolemapping/rolemapping.properties. You must provide this file and mount it at this path in all applicable deployment configurations; for instructions, see Section 13.3, “(Optional) Providing the LDAP role mapping file”.

      Alternatively, you can enter role mapping settings directly in this property, using the role=role1,role2;another-role=role2 pattern, for example admins=kie-server,rest-all,admin;developers=kie-server,rest-all.

    • Role Mapper Keep Mapped (AUTH_LDAP_MAPPER_KEEP_MAPPED): If set to true, both mapped roles and roles defined on the LDAP server are set as user application roles; if set to false, mapped roles replace the roles defined on the LDAP server. The default setting is false.
    • Role Mapper Keep Non-mapped (AUTH_LDAP_MAPPER_KEEP_NON_MAPPED): If set to true, roles defined on the LDAP server and not corresponding to any mapping are kept as user application roles; if set to false, roles that have no mapping are removed. The default setting is false.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.1.6, “Completing deployment of the template for monitoring and Smart Router”.

10.1.6. Completing deployment of the template for monitoring and Smart Router

After setting all the required parameters in the OpenShift Web UI or in the command line, complete deployment of the template.

Procedure

Depending on the method that you are using, complete the following steps:

  • In the OpenShift Web UI, click Create.

    • If the This will create resources that may have security or project behavior implications message appears, click Create Anyway.
  • Complete the command line and press Enter.

Next steps

Depending on your needs for the environment, optionally complete procedures described in Chapter 13, Optional procedures after deploying your environment.

10.2. Deploying an immutable KIE Server using an S2I build

You can deploy an immutable KIE Server using an S2I build. When you deploy the server, the deployment procedure retrieves the source code for any services that must run on this server, builds the services, and includes them in the server image.

You cannot deploy or undeploy services on a running immutable KIE Server. You can use Business Central or Business Central Monitoring to view monitoring information. KIE Server runs like any other pod on the OpenShift environment; you can use any container-based integration workflows as necessary.

You can enable JMS capabilities of the immutable KIE Server. With JMS capabilities you can interact with the server through JMS API using an external AMQ message broker.

By default, this server uses a PostgreSQL database server in a pod. To use a MySQL database server in a pod or an external database server, you can modify the template. For instructions about modifying the template, see Section 10.3, “Modifying the template for deploying an immutable KIE Server using S2I”.

If a Business Central or Business Central Monitoring is deployed in the same namespace, it discovers the immutable KIE Server automatically. You can use Business Central or Business Central Monitoring to start and stop (but not deploy) services on the immutable KIE Server and to view monitoring data.

10.2.1. Starting configuration of the template for an immutable KIE Server using S2I

To deploy an immutable KIE Server using an S2I build, use the rhpam712-prod-immutable-kieserver-amq.yaml template file if you want to enable JMS capabilities. Otherwise, use the rhpam712-prod-immutable-kieserver.yaml template file.

Procedure

  1. Download the rhpam-7.12.0-openshift-templates.zip product deliverable file from the Software Downloads page of the Red Hat Customer Portal.
  2. Extract the required template file.
  3. By default, the template includes two KIE Servers. Each of the serves uses a PostgreSQL database server in a pod. To change the number of KIE Servers or to use a MySQL database server in a pod or an external database server, modify the template as described in Section 10.3, “Modifying the template for deploying an immutable KIE Server using S2I”.
  4. Use one of the following methods to start deploying the template:

    • To use the OpenShift Web UI, in the OpenShift application console select Add to Project → Import YAML / JSON and then select or paste the <template-file-name>.yaml file. In the Add Template window, ensure Process the template is selected and click Continue.
    • To use the OpenShift command line console, prepare the following command line:

      oc new-app -f <template-path>/<template-file-name>.yaml -p KIE_SERVER_HTTPS_SECRET=kieserver-app-secret -p PARAMETER=value

      In this command line, make the following changes:

      • Replace <template-path> with the path to the downloaded template file.
      • Replace <template-file-name> with the name of the template file.
      • Use as many -p PARAMETER=value pairs as needed to set the required parameters.

Next steps

Set the parameters for the template. Follow the steps in Section 10.2.2, “Setting required parameters for an immutable KIE Server using S2I” to set common parameters. You can view the template file to see descriptions for all parameters.

10.2.2. Setting required parameters for an immutable KIE Server using S2I

When configuring the template to deploy an immutable KIE Server using an S2I build, you must set the following parameters in all cases.

Prerequisites

Procedure

  1. Set the following parameters:

    • Credentials secret (CREDENTIALS_SECRET): The name of the secret containing the administrative user credentials, as created in Section 7.5, “Creating the secret for the administrative user”.
    • KIE Server Keystore Secret Name (KIE_SERVER_HTTPS_SECRET): The name of the secret for KIE Server, as created in Section 7.2, “Creating the secrets for KIE Server”.
    • KIE Server Certificate Name (KIE_SERVER_HTTPS_NAME): The name of the certificate in the keystore that you created in Section 7.2, “Creating the secrets for KIE Server”.
    • KIE Server Keystore Password (KIE_SERVER_HTTPS_PASSWORD): The password for the keystore that you created in Section 7.2, “Creating the secrets for KIE Server”.
    • Application Name (APPLICATION_NAME): The name of the OpenShift application. It is used in the default URLs for Business Central Monitoring and KIE Server. OpenShift uses the application name to create a separate set of deployment configurations, services, routes, labels, and artifacts. You can deploy several applications using the same template into the same project, as long as you use different application names. Also, the application name determines the name of the server configuration (server template) that this KIE Server instance joins on Business Central or Business Central Monitoring. If you are deploying several KIE Server instances, you must ensure each of the servers has a different application name.
    • KIE Server Container Deployment (KIE_SERVER_CONTAINER_DEPLOYMENT): The identifying information of the decision service (KJAR file) that the deployment must pull from the local or external repository after building your source. The format is <containerId>=<groupId>:<artifactId>:<version> or, if you want to specify an alias name for the container, <containerId>(<aliasId>)=<groupId>:<artifactId>:<version>. You can provide two or more KJAR files using the | separator, as illustrated in the following example:

      containerId=groupId:artifactId:version|c2(alias2)=g2:a2:v2

      To avoid duplicate container IDs, the artifact ID must be unique for each artifact built or used in your project.

    • Git Repository URL (SOURCE_REPOSITORY_URL): The URL for the Git repository that contains the source for your services.
    • Git Reference (SOURCE_REPOSITORY_REF): The branch in the Git repository.
    • Context Directory (CONTEXT_DIR): The path to the source within the project downloaded from the Git repository.
    • Artifact Directory (ARTIFACT_DIR): The path within the project that contains the required binary files (KJAR files and any other necessary files) after a successful Maven build. Normally this directory is the target directory of the build. However, you can provide prebuilt binaries in this directory in the Git repository.
    • ImageStream Namespace (IMAGE_STREAM_NAMESPACE): The namespace where the image streams are available. If the image streams were already available in your OpenShift environment (see Section 7.1, “Ensuring the availability of image streams and the image registry”), the namespace is openshift. If you have installed the image streams file, the namespace is the name of the OpenShift project.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

10.2.3. Configuring the image stream namespace for an immutable KIE Server using S2I

If you created image streams in a namespace that is not openshift, you must configure the namespace in the template.

If all image streams were already available in your Red Hat OpenShift Container Platform environment, you can skip this procedure.

Prerequisites

Procedure

If you installed an image streams file according to instructions in Section 7.1, “Ensuring the availability of image streams and the image registry”, set the ImageStream Namespace (IMAGE_STREAM_NAMESPACE) parameter to the name of your OpenShift project.

10.2.4. Configuring information about a Business Central or Business Central Monitoring instance for an immutable KIE Server using S2I

If you want to enable a connection from a Business Central or Business Central Monitoring instance in the same namespace to this KIE Server instance, you must configure information about the Business Central or Business Central Monitoring instance.

The Business Central or Business Central Monitoring instance must be configured with the same credentials secret (CREDENTIALS_SECRET) as the KIE Server.

Prerequisites

Procedure

  1. Set the following parameters:

    • Name of the Business Central service (BUSINESS_CENTRAL_SERVICE): The OpenShift service name for the Business Central or Business Central Monitoring.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

10.2.5. Setting an optional Maven repository for an immutable KIE Server using S2I

When configuring the template to deploy an immutable KIE Server using an S2I build, if your source build includes dependencies that are not available on the public Maven tree and require a separate custom Maven repository, you must set parameters to access the repository.

Prerequisites

Procedure

To configure access to a custom Maven repository, set the following parameters:

  • Maven repository URL (MAVEN_REPO_URL): The URL for the Maven repository.
  • Maven repository ID (MAVEN_REPO_ID): An identifier for the Maven repository. The default value is repo-custom.
  • Maven repository username (MAVEN_REPO_USERNAME): The user name for the Maven repository.
  • Maven repository password (MAVEN_REPO_PASSWORD): The password for the Maven repository.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

10.2.6. Configuring access to a Maven mirror in an environment without a connection to the public Internet for an immutable KIE Server using S2I

When configuring the template to deploy an immutable KIE Server using an S2I build, if your OpenShift environment does not have a connection to the public Internet, you must configure access to a Maven mirror that you set up according to Section 7.9, “Preparing a Maven mirror repository for offline use”.

Prerequisites

Procedure

To configure access to the Maven mirror, set the following parameters:

  • Maven mirror URL (MAVEN_MIRROR_URL): The URL for the Maven mirror repository that you set up in Section 7.9, “Preparing a Maven mirror repository for offline use”. This URL must be accessible from a pod in your OpenShift environment.
  • Maven mirror of (MAVEN_MIRROR_OF): The value that determines which artifacts are to be retrieved from the mirror. For instructions about setting the mirrorOf value, see Mirror Settings in the Apache Maven documentation. The default value is external:*. With this value, Maven retrieves every required artifact from the mirror and does not query any other repositories.

    • If you configure an external Maven repository (MAVEN_REPO_URL), change MAVEN_MIRROR_OF to exclude the artifacts in this repository from the mirror, for example, external:*,!repo-custom. Replace repo-custom with the ID that you configured in MAVEN_REPO_ID.
    • If you configure a built-in Business Central Maven repository (BUSINESS_CENTRAL_MAVEN_SERVICE), change MAVEN_MIRROR_OF to exclude the artifacts in this repository from the mirror: external:*,!repo-rhpamcentr.
    • If you configure both repositories, change MAVEN_MIRROR_OF to exclude the artifacts in both repositories from the mirror: external:*,!repo-rhpamcentr,!repo-custom. Replace repo-custom with the ID that you configured in MAVEN_REPO_ID.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

10.2.7. Configuring communication with an AMQ server for an immutable KIE Server using S2I

If you use the rhpam712-prod-immutable-kieserver-amq.yaml template file, KIE Server JMS capabilities are enabled. You can interact with the server through the JMS API, using an external AMQ message broker.

If necessary for your environment, you can modify the JMS configuration.

Prerequisites

Procedure

Set any of the following parameters as required for your environment:

  • AMQ Username (AMQ_USERNAME) and AMQ Password (AMQ_PASSWORD): The user name and password of a standard broker user, if user authentication in the broker is required in your environment.
  • AMQ Role (AMQ_ROLE): The user role for the standard broker user. The default role is admin.
  • AMQ Queues (AMQ_QUEUES): AMQ queue names, separated by commas. These queues are automatically created when the broker starts and are accessible as JNDI resources in the JBoss EAP server. If you use custom queue names, you must also set the same queue names in the KIE_SERVER_JMS_QUEUE_RESPONSE, KIE_SERVER_JMS_QUEUE_REQUEST, KIE_SERVER_JMS_QUEUE_SIGNAL, KIE_SERVER_JMS_QUEUE_AUDIT, and KIE_SERVER_JMS_QUEUE_EXECUTOR parameters.
  • AMQ Global Max Size (AMQ_GLOBAL_MAX_SIZE): The maximum amount of memory that message data can consume. If no value is specified, half of the memory available in the pod is allocated.
  • AMQ Protocols (AMQ_PROTOCOL): Broker protocols that KIE Server can use to communicate with the AMQ server, separated by commas. Allowed values are openwire, amqp, stomp, and mqtt. Only openwire is supported by JBoss EAP. The default value is openwire.
  • AMQ Broker Image (AMQ_BROKER_IMAGESTREAM_NAME): The image stream name for the AMQ broker image.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

10.2.8. Setting parameters for RH-SSO authentication for an immutable KIE Server using S2I

If you want to use RH-SSO authentication, complete the following additional configuration when configuring the template to deploy an immutable KIE Server using an S2I build.

Important

Do not configure LDAP authentication and RH-SSO authentication in the same deployment.

Prerequisites

  • A realm for Red Hat Process Automation Manager is created in the RH-SSO authentication system.
  • User names and passwords for Red Hat Process Automation Manager are created in the RH-SSO authentication system. For a list of the available roles, see Chapter 14, Red Hat Process Automation Manager roles and users.

    You must create a user with the username and password configured in the secret for the administrative user, as described in Section 7.5, “Creating the secret for the administrative user”. This user must have the kie-server,rest-all,admin roles.

  • Clients are created in the RH-SSO authentication system for all components of the Red Hat Process Automation Manager environment that you are deploying. The client setup contains the URLs for the components. You can review and edit the URLs after deploying the environment. Alternatively, the Red Hat Process Automation Manager deployment can create the clients. However, this option provides less detailed control over the environment.
  • You started the configuration of the template, as described in Section 10.2.1, “Starting configuration of the template for an immutable KIE Server using S2I”.

Procedure

  1. Set the following parameters:

    • RH-SSO URL (SSO_URL): The URL for RH-SSO.
    • RH-SSO Realm name (SSO_REALM): The RH-SSO realm for Red Hat Process Automation Manager.
    • RH-SSO Disable SSL Certificate Validation (SSO_DISABLE_SSL_CERTIFICATE_VALIDATION): Set to true if your RH-SSO installation does not use a valid HTTPS certificate.
  2. Complete one of the following procedures:

    1. If you created the client for Red Hat Process Automation Manager within RH-SSO, set the following parameters in the template:

      • Business Central or Business Central Monitoring RH-SSO Client name (BUSINESS_CENTRAL_SSO_CLIENT): The RH-SSO client name for Business Central or Business Central Monitoring.
      • KIE Server RH-SSO Client name (KIE_SERVER_SSO_CLIENT): The RH-SSO client name for KIE Server.
      • KIE Server RH-SSO Client Secret (KIE_SERVER_SSO_SECRET): The secret string that is set in RH-SSO for the client for KIE Server.
    2. To create the clients for Red Hat Process Automation Manager within RH-SSO, set the following parameters in the template:

      • KIE Server RH-SSO Client name (KIE_SERVER_SSO_CLIENT): The name of the client to create in RH-SSO for KIE Server.
      • KIE Server RH-SSO Client Secret (KIE_SERVER_SSO_SECRET): The secret string to set in RH-SSO for the client for KIE Server.
      • RH-SSO Realm Admin Username (SSO_USERNAME) and RH-SSO Realm Admin Password (SSO_PASSWORD): The user name and password for the realm administrator user for the RH-SSO realm for Red Hat Process Automation Manager. You must provide this user name and password in order to create the required clients.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

After completing the deployment, review the URLs for components of Red Hat Process Automation Manager in the RH-SSO authentication system to ensure they are correct.

10.2.9. Setting parameters for LDAP authentication for an immutable KIE Server using S2I

If you want to use LDAP authentication, complete the following additional configuration when configuring the template to deploy an immutable KIE Server using an S2I build.

Important

Do not configure LDAP authentication and RH-SSO authentication in the same deployment.

Prerequisites

Procedure

  1. Set the AUTH_LDAP* parameters of the template. These parameters configure LDAP authentication using the Elytron subsystem of Red Hat JBoss EAP. For more information about using the Elytron subsystem of Red Hat JBoss EAP with LDAP, see Configure Authentication with an LDAP-Based Identity Store.

    Note

    If you want to enable LDAP failover, you can put set or more LDAP server addresses in the AUTH_LDAP_URL parameter, separated by a space.

    If the LDAP server does not define all the roles required for your deployment, you can map LDAP groups to Red Hat Process Automation Manager roles. To enable LDAP role mapping, set the following parameters:

    • RoleMapping rolesProperties file path or one lined roles (AUTH_ROLE_MAPPER_ROLES_PROPERTIES): The fully qualified path name of a file that defines role mapping, for example /opt/eap/standalone/configuration/rolemapping/rolemapping.properties. You must provide this file and mount it at this path in all applicable deployment configurations; for instructions, see Section 13.3, “(Optional) Providing the LDAP role mapping file”.

      Alternatively, you can enter role mapping settings directly in this property, using the role=role1,role2;another-role=role2 pattern, for example admins=kie-server,rest-all,admin;developers=kie-server,rest-all.

    • Role Mapper Keep Mapped (AUTH_LDAP_MAPPER_KEEP_MAPPED): If set to true, both mapped roles and roles defined on the LDAP server are set as user application roles; if set to false, mapped roles replace the roles defined on the LDAP server. The default setting is false.
    • Role Mapper Keep Non-mapped (AUTH_LDAP_MAPPER_KEEP_NON_MAPPED): If set to true, roles defined on the LDAP server and not corresponding to any mapping are kept as user application roles; if set to false, roles that have no mapping are removed. The default setting is false.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

10.2.10. Setting parameters for using an external database server for an immutable KIE Server using S2I

If you modified the template to use an external database server for KIE Server, as described in Section 10.3, “Modifying the template for deploying an immutable KIE Server using S2I”, complete the following additional configuration when configuring the template to deploy an immutable KIE Server using an S2I build.

Prerequisites

Procedure

  1. Set the following parameters:

    • KIE Server External Database Driver (KIE_SERVER_EXTERNALDB_DRIVER): The driver for the server, depending on the server type:

      • mysql
      • postgresql
      • mariadb
      • mssql
      • db2
      • oracle
      • sybase
    • KIE Server External Database User (KIE_SERVER_EXTERNALDB_USER) and KIE Server External Database Password (KIE_SERVER_EXTERNALDB_PWD): The user name and password for the external database server
    • KIE Server External Database URL (KIE_SERVER_EXTERNALDB_URL): The JDBC URL for the external database server

      Note

      If you are using the EntrepriseDB Postgres database server, use an URL starting with jdbc:postgresql:// and not with jdbc:edb://. Alternatively, do not set the URL and set the host and port parameters instead.

    • KIE Server External Database Host (KIE_SERVER_EXTERNALDB_SERVICE_HOST) and KIE Server External Database Port (KIE_SERVER_EXTERNALDB_SERVICE_PORT): The host name and port number of the external database server. You can set these parameters as an alternative to setting the KIE_SERVER_EXTERNALDB_URL parameter.
    • KIE Server External Database Dialect (KIE_SERVER_EXTERNALDB_DIALECT): The Hibernate dialect for the server, depending on the server type. The common settings are:

      • org.hibernate.dialect.MySQL5InnoDBDialect
      • org.hibernate.dialect.MySQL8Dialect
      • org.hibernate.dialect.MariaDB102Dialect
      • org.hibernate.dialect.PostgreSQL95Dialect
      • org.hibernate.dialect.PostgresPlusDialect (used for EntrepriseDB Postgres Advanced Server)
      • org.hibernate.dialect.SQLServer2012Dialect (used for MS SQL)
      • org.hibernate.dialect.DB2Dialect
      • org.hibernate.dialect.Oracle10gDialect
      • org.hibernate.dialect.SybaseASE15Dialect

        For a complete list of supported dialects, see the Hibernate SQL Dialects table in Hibernate properties in the Red Hat JBoss EAP documentation.

    • KIE Server External Database name (KIE_SERVER_EXTERNALDB_DB): The database name to use on the external database server
    • JDBC Connection Checker class (KIE_SERVER_EXTERNALDB_CONNECTION_CHECKER): The name of the JDBC connection checker class for the database server. Without this information, a database server connection cannot be restored after it is lost, for example, if the database server is rebooted.
    • JDBC Exception Sorter class (KIE_SERVER_EXTERNALDB_EXCEPTION_SORTER): The name of the JDBC exception sorter class for the database server. Without this information, a database server connection cannot be restored after it is lost, for example, if the database server is rebooted.
  2. If you created a custom image for using an external database server, as described in Section 7.10, “Building a custom KIE Server extension image for an external database”, set the following parameters:

    • Drivers Extension Image (EXTENSIONS_IMAGE): The ImageStreamTag definition of the extension image, for example, jboss-kie-db2-extension-openshift-image:11.1.4.4
    • Drivers ImageStream Namespace (EXTENSIONS_IMAGE_NAMESPACE): The namespace to which you uploaded the extension image, for example, openshift or your project namespace.
  3. If you are using a MySQL version 8 external database server, enable the mysql_native_password plugin and use it for authentication. For instructions about this plugin, see Native Pluggable Authentication in the MySQL 8.0 Reference Manual.

    If you are using a MySQL version 8 image provided by Red Hat on Red Hat OpenShift Container Platform, to enable the plugin, set the MYSQL_DEFAULT_AUTHENTICATION_PLUGIN environment variable to mysql_native_password.

    If you created users on the MySQL version 8 server before enabling the mysql_native_password plugin, you must update the mysql-user table after you enable the plugin.

Next steps

If necessary, set additional parameters.

If you want to configure EJB Timers, you must use two different databases for KIE Server runtime data and EJB timer data. To configure EJB Timers using different databases or schema, see Section 9.1.12, “Configuring EJB timers using different databases or schemas”.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

10.2.11. Enabling Prometheus metric collection for an immutable KIE Server using S2I

If you want to configure your KIE Server deployment to use Prometheus to collect and store metrics, enable support for this feature in KIE Server at deployment time.

Prerequisites

Procedure

To enable support for Prometheus metric collection, set the Prometheus Server Extension Disabled (PROMETHEUS_SERVER_EXT_DISABLED) parameter to false.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.2.12, “Completing deployment of the template for an immutable KIE Server using S2I”.

For instructions about configuring Prometheus metrics collection, see Managing and monitoring KIE Server.

10.2.12. Completing deployment of the template for an immutable KIE Server using S2I

After setting all the required parameters in the OpenShift Web UI or in the command line, complete deployment of the template.

Procedure

Depending on the method that you are using, complete the following steps:

  • In the OpenShift Web UI, click Create.

    • If the This will create resources that may have security or project behavior implications message appears, click Create Anyway.
  • Complete the command line and press Enter.

Next steps

Depending on your needs for the environment, optionally complete procedures described in Chapter 13, Optional procedures after deploying your environment.

10.3. Modifying the template for deploying an immutable KIE Server using S2I

By default, the template for deploying an immutable server using S2I creates a separate PostgreSQL pod to provide the database server for each replicable KIE Server. If you prefer to use MySQL or an external server (outside the OpenShift project), modify the rhpam712-prod-immutable-kieserver.yaml or rhpam712-prod-immutable-kieserver-amq.yaml template file before deploying the server.

An OpenShift template defines a set of objects that can be created by OpenShift. To change an environment configuration, you need to modify, add, or delete these objects. To simplify this task, comments are provided in the Red Hat Process Automation Manager templates.

Some comments mark blocks within the template, staring with BEGIN and ending with END. For example, the following block is named Sample block:

## Sample block BEGIN
sample line 1
sample line 2
sample line 3
## Sample block END

For some changes, you might need to replace a block in one template file with a block from another template file provided with Red Hat Process Automation Manager. In this case, delete the block, then paste the new block in its exact location.

Procedure

  • If you want to use MySQL instead of PostgreSQL, replace several blocks of the file, marked with comments from BEGIN to END, with blocks from the rhpam712-kieserver-mysql.yaml file:

    1. Replace the block named PostgreSQL database parameters with the block named MySQL database parameters. (Take this block and all subsequent replacement blocks from the rhpam712-kieserver-postgresql.yaml file.)
    2. Replace the block named PostgreSQL service with the block named MySQL service.
    3. Replace the block named PostgreSQL driver settings with the block named MySQL driver settings.
    4. Replace the block named PostgreSQL deployment config with the block named MySQL deployment config.
    5. Replace the block named PostgreSQL persistent volume claim with the block named MySQL persistent volume claim.
  • If you want to use an external database server, replace several blocks of the file, marked with comments from BEGIN to END, with blocks from the rhpam712-kieserver-externaldb.yaml file, and also remove some blocks:

    1. Replace the block named PostgreSQL database parameters with the block named External database parameters. (Take this block and all subsequent replacement blocks from the rhpam712-kieserver-externaldb.yaml file.)
    2. Replace the block named PostgreSQL driver settings with the block named External database driver settings.
    3. Remove the following blocks of the file, marked with comments from BEGIN to END:

      • PostgreSQL service
      • PostgreSQL deployment config
      • PostgreSQL persistent volume claim
Important

The standard KIE Server image includes drivers for MySQL, MariaDB, and PostgreSQL external database servers. If you want to use another database server, you must build a custom KIE Server image. For instructions, see Section 7.10, “Building a custom KIE Server extension image for an external database”.

10.4. Deploying an immutable KIE Server from KJAR services

You can deploy an immutable KIE Server using services that are already built as KJAR files.

You must provide the services in a Maven repository. You can use the built-in repository of the Business Central or your own repository (for example, a Nexus deployment). When the server pod starts, it retrieves the KJAR services from the Maven repository. Services on the pod are never updated or changed. At every restart or scaling of the pod, the server retrieves the files from the repository, so you must ensure they do not change on the Maven repository to keep the deployment immutable.

You cannot deploy or undeploy services on a running immutable KIE Server. You can use Business Central or Business Central Monitoring to view monitoring information. KIE Server runs like any other pod on the OpenShift environment; you can use any container-based integration workflows as necessary.

If a Business Central or Business Central Monitoring is deployed in the same namespace, it discovers the immutable KIE Server automatically. You can use Business Central or Business Central Monitoring to start and stop (but not deploy) services on the immutable KIE Server and to view monitoring data.

10.4.1. Starting configuration of the template for an immutable KIE Server from KJAR services

To deploy an immutable KIE Server from KJAR services, use one of the following template files:

  • rhpam712-kieserver-postgresql.yaml to use a PostgreSQL pod for persistent storage. Use this template unless you have a specific reason to use another template.
  • rhpam712-kieserver-mysql.yaml to use a MySQL pod for persistent storage.
  • rhpam712-kieserver-externaldb.yaml to use an external database server for persistent storage.

    Important

    The standard KIE Server image for an external database server includes drivers for MySQL and PostgreSQL external database servers. If you want to use another database server, you must build a custom KIE Server image. For instructions, see Section 7.10, “Building a custom KIE Server extension image for an external database”.

Procedure

  1. Download the rhpam-7.12.0-openshift-templates.zip product deliverable file from the Software Downloads page of the Red Hat Customer Portal.
  2. Extract the required template file.
  3. Use one of the following methods to start deploying the template:

    • To use the OpenShift Web UI, in the OpenShift application console select Add to Project → Import YAML / JSON and then select or paste the <template-file-name>.yaml file. In the Add Template window, ensure Process the template is selected and click Continue.
    • To use the OpenShift command line console, prepare the following command line:

      oc new-app -f <template-path>/<template-file-name>.yaml -p KIE_SERVER_HTTPS_SECRET=kieserver-app-secret -p PARAMETER=value

      In this command line, make the following changes:

      • Replace <template-path> with the path to the downloaded template file.
      • Replace <template-file-name> with the name of the template file.
      • Use as many -p PARAMETER=value pairs as needed to set the required parameters.

Next steps

Set the parameters for the template. Follow the steps in Section 10.4.2, “Setting required parameters for an immutable KIE Server from KJAR services” to set common parameters. You can view the template file to see descriptions for all parameters.

10.4.2. Setting required parameters for an immutable KIE Server from KJAR services

When configuring the template to deploy an immutable KIE Server from KJAR services, you must set the following parameters in all cases.

Prerequisites

Procedure

  1. Set the following parameters:

    • Credentials secret (CREDENTIALS_SECRET): The name of the secret containing the administrative user credentials, as created in Section 7.5, “Creating the secret for the administrative user”.
    • KIE Server Keystore Secret Name (KIE_SERVER_HTTPS_SECRET): The name of the secret for KIE Server, as created in Section 7.2, “Creating the secrets for KIE Server”.
    • KIE Server Certificate Name (KIE_SERVER_HTTPS_NAME): The name of the certificate in the keystore that you created in Section 7.2, “Creating the secrets for KIE Server”.
    • KIE Server Keystore Password (KIE_SERVER_HTTPS_PASSWORD): The password for the keystore that you created in Section 7.2, “Creating the secrets for KIE Server”.
    • Application Name (APPLICATION_NAME): The name of the OpenShift application. It is used in the default URLs for Business Central Monitoring and KIE Server. OpenShift uses the application name to create a separate set of deployment configurations, services, routes, labels, and artifacts. You can deploy several applications using the same template into the same project, as long as you use different application names. Also, the application name determines the name of the server configuration (server template) that this KIE Server instance joins on Business Central or Business Central Monitoring. If you are deploying several KIE Server instances, you must ensure each of the servers has a different application name.
    • Maven repository URL (MAVEN_REPO_URL): A URL for a Maven repository. You must upload all the processes (KJAR files) that are to be deployed on KIE Server into this repository.
    • Maven repository ID (MAVEN_REPO_ID): An identifier for the Maven repository. The default value is repo-custom.
    • Maven repository username (MAVEN_REPO_USERNAME): The user name for the Maven repository.
    • Maven repository password (MAVEN_REPO_PASSWORD): The password for the Maven repository.
    • KIE Server Container Deployment (KIE_SERVER_CONTAINER_DEPLOYMENT): The identifying information of the decision services (KJAR files) that the deployment must pull from the Maven repository. The format is <containerId>=<groupId>:<artifactId>:<version> or, if you want to specify an alias name for the container, <containerId>(<aliasId>)=<groupId>:<artifactId>:<version>. You can provide two or more KJAR files using the | separator, as illustrated in the following example:

      containerId=groupId:artifactId:version|c2(alias2)=g2:a2:v2
    • KIE Server Mode (KIE_SERVER_MODE): In the rhpam712-kieserver-*.yaml templates the default value is PRODUCTION. In PRODUCTION mode, you cannot deploy SNAPSHOT versions of KJAR artifacts on this KIE Server instance and cannot change versions of an artifact in an existing container. To deploy a new version with PRODUCTION mode, create a new container on the same KIE Server. To deploy SNAPSHOT versions or to change versions of an artifact in an existing container, set this parameter to DEVELOPMENT.
    • ImageStream Namespace (IMAGE_STREAM_NAMESPACE): The namespace where the image streams are available. If the image streams were already available in your OpenShift environment (see Section 7.1, “Ensuring the availability of image streams and the image registry”), the namespace is openshift. If you have installed the image streams file, the namespace is the name of the OpenShift project.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.4.10, “Completing deployment of the template for an immutable KIE Server from KJAR services”.

10.4.3. Configuring the image stream namespace for an immutable KIE Server from KJAR services

If you created image streams in a namespace that is not openshift, you must configure the namespace in the template.

If all image streams were already available in your Red Hat OpenShift Container Platform environment, you can skip this procedure.

Prerequisites

Procedure

If you installed an image streams file according to instructions in Section 7.1, “Ensuring the availability of image streams and the image registry”, set the ImageStream Namespace (IMAGE_STREAM_NAMESPACE) parameter to the name of your OpenShift project.

10.4.4. Configuring information about a Business Central or Business Central Monitoring instance for an immutable KIE Server from KJAR services

If you want to enable a connection from a Business Central or Business Central Monitoring instance in the same namespace to this KIE Server instance, you must configure information about the Business Central or Business Central Monitoring instance.

The Business Central or Business Central Monitoring instance must be configured with the same credentials secret (CREDENTIALS_SECRET) as the KIE Server.

Prerequisites

Procedure

  1. Set the following parameters:

    • Name of the Business Central service (BUSINESS_CENTRAL_SERVICE): The OpenShift service name for the Business Central or Business Central Monitoring.
  2. Ensure that the following settings are set to the same value as the same settings for the Business Central or Business Central Monitoring:

    • Maven repository URL (MAVEN_REPO_URL): A URL for the external Maven repository from which services must be deployed.
    • Maven repository username (MAVEN_REPO_USERNAME): The user name for the Maven repository.
    • Maven repository password (MAVEN_REPO_PASSWORD): The password for the Maven repository.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.4.10, “Completing deployment of the template for an immutable KIE Server from KJAR services”.

10.4.5. Configuring access to a Maven mirror in an environment without a connection to the public Internet for an immutable KIE Server from KJAR services

When configuring the template to deploy an immutable KIE Server from KJAR services, if your OpenShift environment does not have a connection to the public Internet, you must configure access to a Maven mirror that you set up according to Section 7.9, “Preparing a Maven mirror repository for offline use”.

Prerequisites

Procedure

To configure access to the Maven mirror, set the following parameters:

  • Maven mirror URL (MAVEN_MIRROR_URL): The URL for the Maven mirror repository that you set up in Section 7.9, “Preparing a Maven mirror repository for offline use”. This URL must be accessible from a pod in your OpenShift environment.
  • Maven mirror of (MAVEN_MIRROR_OF): The value that determines which artifacts are to be retrieved from the mirror. For instructions about setting the mirrorOf value, see Mirror Settings in the Apache Maven documentation. The default value is external:*. With this value, Maven retrieves every required artifact from the mirror and does not query any other repositories.

    • If you configure an external Maven repository (MAVEN_REPO_URL), change MAVEN_MIRROR_OF to exclude the artifacts in this repository from the mirror, for example, external:*,!repo-custom. Replace repo-custom with the ID that you configured in MAVEN_REPO_ID.
    • If you configure a built-in Business Central Maven repository (BUSINESS_CENTRAL_MAVEN_SERVICE), change MAVEN_MIRROR_OF to exclude the artifacts in this repository from the mirror: external:*,!repo-rhpamcentr.
    • If you configure both repositories, change MAVEN_MIRROR_OF to exclude the artifacts in both repositories from the mirror: external:*,!repo-rhpamcentr,!repo-custom. Replace repo-custom with the ID that you configured in MAVEN_REPO_ID.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.4.10, “Completing deployment of the template for an immutable KIE Server from KJAR services”.

10.4.6. Setting parameters for RH-SSO authentication for an immutable KIE Server from KJAR services

If you want to use RH-SSO authentication, complete the following additional configuration when configuring the template to deploy an immutable KIE Server from KJAR services.

Important

Do not configure LDAP authentication and RH-SSO authentication in the same deployment.

Prerequisites

Procedure

  1. Set the following parameters:

    • RH-SSO URL (SSO_URL): The URL for RH-SSO.
    • RH-SSO Realm name (SSO_REALM): The RH-SSO realm for Red Hat Process Automation Manager.
    • RH-SSO Disable SSL Certificate Validation (SSO_DISABLE_SSL_CERTIFICATE_VALIDATION): Set to true if your RH-SSO installation does not use a valid HTTPS certificate.
  2. Complete one of the following procedures:

    1. If you created the client for Red Hat Process Automation Manager within RH-SSO, set the following parameters in the template:

      • Business Central or Business Central Monitoring RH-SSO Client name (BUSINESS_CENTRAL_SSO_CLIENT): The RH-SSO client name for Business Central or Business Central Monitoring.
      • KIE Server RH-SSO Client name (KIE_SERVER_SSO_CLIENT): The RH-SSO client name for KIE Server.
      • KIE Server RH-SSO Client Secret (KIE_SERVER_SSO_SECRET): The secret string that is set in RH-SSO for the client for KIE Server.
    2. To create the clients for Red Hat Process Automation Manager within RH-SSO, set the following parameters in the template:

      • KIE Server RH-SSO Client name (KIE_SERVER_SSO_CLIENT): The name of the client to create in RH-SSO for KIE Server.
      • KIE Server RH-SSO Client Secret (KIE_SERVER_SSO_SECRET): The secret string to set in RH-SSO for the client for KIE Server.
      • RH-SSO Realm Admin Username (SSO_USERNAME) and RH-SSO Realm Admin Password (SSO_PASSWORD): The user name and password for the realm administrator user for the RH-SSO realm for Red Hat Process Automation Manager. You must provide this user name and password in order to create the required clients.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.4.10, “Completing deployment of the template for an immutable KIE Server from KJAR services”.

After completing the deployment, review the URLs for components of Red Hat Process Automation Manager in the RH-SSO authentication system to ensure they are correct.

10.4.7. Setting parameters for LDAP authentication for an immutable KIE Server from KJAR services

If you want to use LDAP authentication, complete the following additional configuration when configuring the template to deploy an immutable KIE Server from KJAR services.

Important

Do not configure LDAP authentication and RH-SSO authentication in the same deployment.

Prerequisites

Procedure

  1. Set the AUTH_LDAP* parameters of the template. These parameters configure LDAP authentication using the Elytron subsystem of Red Hat JBoss EAP. For more information about using the Elytron subsystem of Red Hat JBoss EAP with LDAP, see Configure Authentication with an LDAP-Based Identity Store.

    Note

    If you want to enable LDAP failover, you can put set or more LDAP server addresses in the AUTH_LDAP_URL parameter, separated by a space.

    If the LDAP server does not define all the roles required for your deployment, you can map LDAP groups to Red Hat Process Automation Manager roles. To enable LDAP role mapping, set the following parameters:

    • RoleMapping rolesProperties file path or one lined roles (AUTH_ROLE_MAPPER_ROLES_PROPERTIES): The fully qualified path name of a file that defines role mapping, for example /opt/eap/standalone/configuration/rolemapping/rolemapping.properties. You must provide this file and mount it at this path in all applicable deployment configurations; for instructions, see Section 13.3, “(Optional) Providing the LDAP role mapping file”.

      Alternatively, you can enter role mapping settings directly in this property, using the role=role1,role2;another-role=role2 pattern, for example admins=kie-server,rest-all,admin;developers=kie-server,rest-all.

    • Role Mapper Keep Mapped (AUTH_LDAP_MAPPER_KEEP_MAPPED): If set to true, both mapped roles and roles defined on the LDAP server are set as user application roles; if set to false, mapped roles replace the roles defined on the LDAP server. The default setting is false.
    • Role Mapper Keep Non-mapped (AUTH_LDAP_MAPPER_KEEP_NON_MAPPED): If set to true, roles defined on the LDAP server and not corresponding to any mapping are kept as user application roles; if set to false, roles that have no mapping are removed. The default setting is false.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.4.10, “Completing deployment of the template for an immutable KIE Server from KJAR services”.

10.4.8. Setting parameters for using an external database server for an immutable KIE Server from KJAR services

If you are using the rhpam712-kieserver-externaldb.yaml template to use an external database server for KIE Server, complete the following additional configuration when configuring the template to deploy an immutable KIE Server from KJAR services.

Prerequisites

Procedure

  1. Set the following parameters:

    • KIE Server External Database Driver (KIE_SERVER_EXTERNALDB_DRIVER): The driver for the server, depending on the server type:

      • mysql
      • postgresql
      • mariadb
      • mssql
      • db2
      • oracle
      • sybase
    • KIE Server External Database User (KIE_SERVER_EXTERNALDB_USER) and KIE Server External Database Password (KIE_SERVER_EXTERNALDB_PWD): The user name and password for the external database server
    • KIE Server External Database URL (KIE_SERVER_EXTERNALDB_URL): The JDBC URL for the external database server

      Note

      If you are using the EntrepriseDB Postgres database server, use an URL starting with jdbc:postgresql:// and not with jdbc:edb://. Alternatively, do not set the URL and set the host and port parameters instead.

    • KIE Server External Database Host (KIE_SERVER_EXTERNALDB_SERVICE_HOST) and KIE Server External Database Port (KIE_SERVER_EXTERNALDB_SERVICE_PORT): The host name and port number of the external database server. You can set these parameters as an alternative to setting the KIE_SERVER_EXTERNALDB_URL parameter.
    • KIE Server External Database Dialect (KIE_SERVER_EXTERNALDB_DIALECT): The Hibernate dialect for the server, depending on the server type. The common settings are:

      • org.hibernate.dialect.MySQL5InnoDBDialect
      • org.hibernate.dialect.MySQL8Dialect
      • org.hibernate.dialect.MariaDB102Dialect
      • org.hibernate.dialect.PostgreSQL95Dialect
      • org.hibernate.dialect.PostgresPlusDialect (used for EntrepriseDB Postgres Advanced Server)
      • org.hibernate.dialect.SQLServer2012Dialect (used for MS SQL)
      • org.hibernate.dialect.DB2Dialect
      • org.hibernate.dialect.Oracle10gDialect
      • org.hibernate.dialect.SybaseASE15Dialect

        For a complete list of supported dialects, see the Hibernate SQL Dialects table in Hibernate properties in the Red Hat JBoss EAP documentation.

    • KIE Server External Database name (KIE_SERVER_EXTERNALDB_DB): The database name to use on the external database server
    • JDBC Connection Checker class (KIE_SERVER_EXTERNALDB_CONNECTION_CHECKER): The name of the JDBC connection checker class for the database server. Without this information, a database server connection cannot be restored after it is lost, for example, if the database server is rebooted.
    • JDBC Exception Sorter class (KIE_SERVER_EXTERNALDB_EXCEPTION_SORTER): The name of the JDBC exception sorter class for the database server. Without this information, a database server connection cannot be restored after it is lost, for example, if the database server is rebooted.
  2. If you created a custom image for using an external database server, as described in Section 7.10, “Building a custom KIE Server extension image for an external database”, set the following parameters:

    • Drivers Extension Image (EXTENSIONS_IMAGE): The ImageStreamTag definition of the extension image, for example, jboss-kie-db2-extension-openshift-image:11.1.4.4
    • Drivers ImageStream Namespace (EXTENSIONS_IMAGE_NAMESPACE): The namespace to which you uploaded the extension image, for example, openshift or your project namespace.
  3. If you are using a MySQL version 8 external database server, enable the mysql_native_password plugin and use it for authentication. For instructions about this plugin, see Native Pluggable Authentication in the MySQL 8.0 Reference Manual.

    If you are using a MySQL version 8 image provided by Red Hat on Red Hat OpenShift Container Platform, to enable the plugin, set the MYSQL_DEFAULT_AUTHENTICATION_PLUGIN environment variable to mysql_native_password.

    If you created users on the MySQL version 8 server before enabling the mysql_native_password plugin, you must update the mysql-user table after you enable the plugin.

Next steps

If necessary, set additional parameters.

If you want to configure EJB Timers, you must use two different databases for KIE Server runtime data and EJB timer data. To configure EJB Timers using different databases or schema, see Section 9.1.12, “Configuring EJB timers using different databases or schemas”.

To complete the deployment, follow the procedure in Section 10.4.10, “Completing deployment of the template for an immutable KIE Server from KJAR services”.

10.4.9. Enabling Prometheus metric collection for an immutable KIE Server from KJAR services

If you want to configure your KIE Server deployment to use Prometheus to collect and store metrics, enable support for this feature in KIE Server at deployment time.

Prerequisites

Procedure

To enable support for Prometheus metric collection, set the Prometheus Server Extension Disabled (PROMETHEUS_SERVER_EXT_DISABLED) parameter to false.

Next steps

If necessary, set additional parameters.

To complete the deployment, follow the procedure in Section 10.4.10, “Completing deployment of the template for an immutable KIE Server from KJAR services”.

For instructions about configuring Prometheus metrics collection, see Managing and monitoring KIE Server.

10.4.10. Completing deployment of the template for an immutable KIE Server from KJAR services

After setting all the required parameters in the OpenShift Web UI or in the command line, complete deployment of the template.

Procedure

Depending on the method that you are using, complete the following steps:

  • In the OpenShift Web UI, click Create.

    • If the This will create resources that may have security or project behavior implications message appears, click Create Anyway.
  • Complete the command line and press Enter.

Next steps

Depending on your needs for the environment, optionally complete procedures described in Chapter 13, Optional procedures after deploying your environment.