Watson™ Knowledge
Catalog includes a connection
type that is specific to Data Virtualization.
Before you begin
Ensure that Data Virtualization and Watson Knowledge
Catalog are installed in the same OpenShift® project (namespace).
About this task
A connection is automatically created in the default catalog when
Data Virtualization detects that the Watson Knowledge
Catalog service is installed. Alternatively, you can
create a connection to Data Virtualization in Watson Knowledge
Catalog manually. To do so, you must use the
Data Virtualization
connection type.
Procedure
To manually create a Data Virtualization
connection to a catalog:
- Click .
- Select your catalog and click .
- Select the Data Virtualization connection type.
- Enter the connection information required for your service.
Typically, you
need to provide information like the database, host, port number, service instance ID, username, and
password. You can find the service instance ID in the Connection configuration
resources section on the page. Optionally, to create a secure connection:
- Check the The port is configured to accept SSL connections box
and specify the SSL port number in the Connection details
page.
- Get the SSL certificate from the Data Virtualization
Connection details page and specify it in the SSL certificate
file field.
- Select whether to use shared or personal credentials.
If you choose to use personal credentials, users are prompted to enter their personal
Data Virtualization username and password and their authorizations
are evaluated individually. If you choose to use shared credentials, all users of this connection
share the
Data Virtualization credentials that you
specify.
Important: If you choose to use shared credentials, any catalog collaborator,
including collaborators with the Viewer role, can retrieve the connection credentials.
Restriction:
When previewing Data Virtualization data assets in Watson modules in Cloud Pak for Data (for example, Watson Knowledge
Catalog, Watson Studio, and Data Refinery), and in cases when data masking applies,
the preview is subject to the data protection rules and catalog or project access control
only.
Data Virtualization access control is not
enforced when masking applies to the asset and you must define your rules to manage access to the
catalogs, projects, data assets, or connections for access control in Watson modules.
Tech preview This is a technology preview and is not supported for
use in production environments.
- Click Create.
The connection appears on the
Assets page. To edit the connection:
- Click the connection name on the Assets page.
- Click the Assets tab.
- Click Edit the connection in the preview.
The Watson Knowledge
Catalog service uses the
DV_SYSID
functional role to connect to Data Virtualization. The DV_SYSID
role is defined
automatically in Data Virtualization and is required for
profiling virtual assets. This role is intended for internal service use only, you must not use this
role for any other purposes.