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

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, run the following commands:

   $ oc get imagestreamtag -n openshift | grep rhdm72-decisioncentral-openshift
   $ oc get imagestreamtag -n openshift | grep rhdm72-kieserver-openshift

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   If the outputs of both commands are not empty, the required image streams are available in the openshift namespace and no further action is required.

3. If the output of one or both of the commands is empty or if OpenShift was not configured with the user name and password for Red Hat registry access, 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 on 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

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

   6. Download the rhdm-7.2.0-openshift-templates.zip product deliverable file from the Software Downloads page and extract the rhdm72-image-streams.yaml file.

   7. Complete one of the following actions:

      • Run the following command:

        $ oc create -f rhdm72-image-streams.yaml

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      • Using the OpenShift Web UI, select Add to Project Import YAML / JSON and then choose the file or paste its contents.

        Note

        If you complete these steps, you install the image streams into the namespace of your project. If you install the image streams using these steps, you must set the IMAGE_STREAM_NAMESPACE parameter to the name of this project when deploying templates.

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.

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

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

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Procedure

1. Use the following command to extract the source code:

   git clone ssh://adminUser@decision-central-host:8001/MySpace/MyProject

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   Replace:

   • adminUser with the administrative user for Decision Central
   • decision-central-host with the host on which Decision Central is running
   • MySpace with the name of the Decision Central space in which the project is located
   • MyProject with the name of the project
2. Upload the source code to another Git repository for the S2I build.

Procedure

1. Build the source of your services on any machine using the mvn clean install command.
2. Copy the downloaded Maven artifacts from the machine onto an internal Maven repository (for example, Nexus).
3. Make this repository available in your Red Hat OpenShift Container Platform environment.