OpenShift 3.6 Generic Guest Template

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Internal

Clone the Basic Template

Use the basic template as a base image, and clone it, as described here:

Cloning a Guest

The particular sequence follows:

virsh shutdown ocp36.basic-template
virsh dumpxml ocp36.basic-template > /root/environments/ocp36/ocp36.basic-template.xml

cp ocp36.basic-template.xml ocp36.generic-template.xml

Adjust the configuration as described here.

Clone the virtual machine image and create the new disk volumes, as described in Cloning a Guest.

virsh define /root/environments/ocp36/ocp36.generic-template.xml
virsh start --console ocp36.generic-template

Then reconfigure Linux VM Guest Image.

Install OpenShift Binaries

Attach the Node to the OpenShift Subscription

https://docs.openshift.com/container-platform/3.6/install_config/install/host_preparation.html#host-registration

The node, being based on the basic template, should have been already registered with the subscription manager:

subscription-manager status
subscription-manager identity




Attach the node to the subscription, using subscription manager, as described here: registering a RHEL System with subscription manager. The support node(s) need only a Red Hat Enterprise Linux. The OpenShift nodes need an OpenShift subscription. For OpenShift, follow these steps:

The the summary of the sequence of steps is available below - the goal of these steps is to configure the following supported repositories on the system: "rhel-7-server-rpms", "rhel-7-server-extras-rpms", "rhel-7-server-ose-3.5-rpms", "rhel-7-fast-datapath-rpms":

subscription-manager register
subscription-manager list --available --matches '*OpenShift*'
subscription-manager attach --pool=<pool-id> --quantity=1
subscription-manager repos --disable="*"
subscription-manager repos --list-enabled
yum repolist
yum-config-manager --disable <repo_id>
subscription-manager repos --enable="rhel-7-server-rpms" --enable="rhel-7-server-extras-rpms" --enable="rhel-7-server-ose-3.5-rpms" --enable="rhel-7-fast-datapath-rpms"
subscription-manager repos --list-enabled
yum repolist
yum update -y
yum install atomic-openshift-utils