User Story:

As a user, I want to be able to specify via the agent-config.yaml:

• the request of installing the MCE operator, along with its configuration
• the request of automatically importing the current cluster as an hub cluster

Acceptance Criteria:

• The MCE operator must result installed
• The current cluster must be imported as an hub cluster (`oc get managedcluster`)*

Engineering Details:

Changes required for the public interface of agent-config.yaml:

• Add a new optional operators section in agent-config.yaml. This section will be used to define both the request of installing a new operator
• Support only the multicluster-engine value under operators.

apiVersion: v1alpha1
metadata:
  name: ostest 
  namespace: ocp
rendezvousIP: 192.168.111.20
operators:
  - mce

Implementation details:

• Define a new Operators asset. If the section .operators is not empty, the asset will have to generate a new operators.yam file, to be stored in the agent ISO under the /etc/assisted/ folder (this folder will be used later by the agentbasedinstaller cli)

*(see https://github.com/openshift/installer/blob/master/docs/user/agent/mce-integration.md for additional manual steps)