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Topologies

Topologies

Use IBM® WebSphere® Application Server to install a WebSphere Application Server traditional environment on a Red Hat® Enterprise Linux® 8.4 virtual server instance (VSI) on IBM Cloud®.

This documentation refers to WebSphere Application Server as WebSphere or WAS.

IBM® WebSphere® Application Server offers two topologies: WAS.Base and WAS.Cell. Specify one of these topologies as a value for the deploy_was_topology parameter.

WAS.Base
The WAS.Base topology provisions one VSI with the latest release of WebSphere Application Server traditional V9.0.5. WAS.Base provides a single server. This VSI has a public (floating) IP address.
WAS.Cell
The WAS.Cell topology provides multiple VSIs with the latest release of WebSphere Application Server Network Deployment traditional V9.0.5. WAS.Cell provisions one VSI with the deployment manager (DMgr), with one or more VSIs for custom nodes. You can also set up an IBM HTTP Server (IHS) VSI. DMgr and IHS VSIs have public (floating) IP addresses, while custom node VSIs have private IP addresses.

The installation sets up a new virtual private cloud (VPC), one or more VSIs, and relevant networking.

VPC details

The VPC, VSI, and related networking artifacts are created in the same resource group where the Schematics workspace is created. After the installation is complete, refer to the Resources section of the Schematics workspace for these artifacts. For more details about the artifacts, see https://cloud.ibm.com/vpc-ext.

VSI details

  • All the VSIs are set up within the same subnet.

  • The VSIs for Base, DMgr, and IHS have public (floating) IP addresses and private IP addresses. For WAS.Cell, the custom nodes VSIs have private IP addresses only.

  • Each VSI is set up with three user IDs:

    root
    Use the sshkey (vpc_sshkey_name) that you set up to log in (ssh) to the VSIs as root.
    OS administrator (vsi_os_admin_name)
    The default value for the OS administrator is virtuser. You can change the default value. Use the vsi_os_admin_password to log in (ssh) as this user.
    WebSphere administrator (vsi_websphere_admin_name)
    The default value for the WebSphere administrator is wsadmin. You can change the default value. Use the vsi_websphere_admin_password to log in (ssh) as this user.

  • OS administrator and WebSphere administrator have password-less sudo access enabled on all VSIs. For WAS.Cell, the OS administrator and WebSphere administrator also have password-less sudo access enabled among the VSIs.

  • Several ports are opened by default. Depending on your scenario, you might need to open more ports for your application to work.

    • 22 for ssh login
    • 80 for the IBM HTTP Server console, if cell_ihs_setup_vsi is true
    • 8080, 9043-9443 for the WebSphere administrative console and applications

  • For more configuration information, see the /etc/virtualimage.properties file on the VSI. All properties that are listed in this file might not apply to your specified topology.