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8.2.6. Verifying external network access

The OpenShift Container Platform installation process requires external network access. You must provide an external network value to it, or deployment fails. Before you begin the process, verify that a network with the external router type exists in Red Hat OpenStack Platform (RHOSP).

Procedure

  1. Using the RHOSP CLI, verify the name and ID of the 'External' network:

    $ openstack network list --long -c ID -c Name -c "Router Type"

    Example output

    +--------------------------------------+----------------+-------------+
    | ID                                   | Name           | Router Type |
    +--------------------------------------+----------------+-------------+
    | 148a8023-62a7-4672-b018-003462f8d7dc | public_network | External    |
    +--------------------------------------+----------------+-------------+

A network with an external router type appears in the network list. If at least one does not, see Creating a default floating IP network and Creating a default provider network.

重要

If the external network’s CIDR range overlaps one of the default network ranges, you must change the matching network ranges in the install-config.yaml file before you start the installation process.

The default network ranges are:

NetworkRange

machineNetwork

10.0.0.0/16

serviceNetwork

172.30.0.0/16

clusterNetwork

10.128.0.0/14

警告

If the installation program finds multiple networks with the same name, it sets one of them at random. To avoid this behavior, create unique names for resources in RHOSP.

注記

If the Neutron trunk service plug-in is enabled, a trunk port is created by default. For more information, see Neutron trunk port.