Chapter 2. Preparing to deploy Red Hat Decision Manager in your OpenShift environment


Before deploying Red Hat Decision Manager in your OpenShift environment, you need to complete several preparatory tasks. You do not need to repeat these tasks if you want to deploy additional images, for example, for new versions of decision services or for other decision services

To deploy Red Hat Decision Manager components of Red Hat OpenShift Container Platform, you must ensure that OpenShift can download the correct images from the Red Hat registry. OpenShift must be configured to authenticate with the Red Hat registry using your service account user name and password.

Procedure

  1. Determine whether Red Hat OpenShift Container Platform was configured with the user name and password for Red Hat registry access. For details about the required configuration, see Configuring a Registry Location. If you are using an OpenShift Online subscription, it is configured for Red Hat registry access.
  2. If Red Hat OpenShift Container Platform was configured with the user name and password for Red Hat registry access, no further action is required. Otherwise, complete the following steps:

    1. Ensure you are logged in to OpenShift with the oc command and that your project is active.
    2. Complete the steps documented in Registry Service Accounts for Shared Environments. You must log in to Red Hat Customer Portal to access the document and to complete the steps to create a registry service account.
    3. Select the OpenShift Secret tab and click the link under Download secret to download the YAML secret file.
    4. View the downloaded file and note the name that is listed in the name: entry.
    5. Run the following commands:

      oc create -f <file_name>.yaml
      oc secrets link default <secret_name> --for=pull
      oc secrets link builder <secret_name> --for=pull

      Replace <file_name> with the name of the downloaded file and <secret_name> with the name that is listed in the name: entry of the file.

2.2. Creating the secrets for Decision Server

OpenShift uses objects called Secrets to hold sensitive information, such as passwords or keystores. For more information about OpenShift secrets, see the Secrets chapter in the OpenShift documentation.

Decision Server uses an SSL certificate to provide HTTPS access. The deployment can create a sample secret automatically. However, in production environments you must create an SSL certificate for Decision Server and provide it to your OpenShift environment as a secret.

Procedure

  1. Generate an SSL keystore with a private and public key for SSL encryption for Decision Server. In a production environment, generate a valid signed certificate that matches the expected URL of the Decision Server. Save the keystore in a file named keystore.jks. Record the name of the certificate and the password of the keystore file.

    For more information on how to create a keystore with self-signed or purchased SSL certificates, see Generate a SSL Encryption Key and Certificate.

  2. Use the oc command to generate a secret named kieserver-app-secret from the new keystore file:

    $ oc create secret generic kieserver-app-secret --from-file=keystore.jks

2.3. Creating the secrets for Business Central

If you are planning to deploy Business Central in your OpenShift environment, note that this component uses an SSL certificate to provide HTTPS access. The deployment can create a sample secret automatically. However, in production environments you must create an SSL certificate for Business Central and provide it to your OpenShift environment as a secret. Do not use the same certificate and keystore for Business Central and for Decision Server.

Procedure

  1. Generate an SSL keystore with a private and public key for SSL encryption for Business Central. In a production environment, generate a valid signed certificate that matches the expected URL of the Business Central. Save the keystore in a file named keystore.jks. Record the name of the certificate and the password of the keystore file.

    For more information on how to create a keystore with self-signed or purchased SSL certificates, see Generate a SSL Encryption Key and Certificate.

  2. Use the oc command to generate a secret named decisioncentral-app-secret from the new keystore file:

    $ oc create secret generic decisioncentral-app-secret --from-file=keystore.jks
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