User Story:

As an admin, I want to be able to:

• Have an interactive generic installation image that I can use for all nodes. Since it is a single image for all the nodes, I need to be able to select on boot whether the node is node0 (and future master) or a regular node.
• Have the TUI checks take into account whether the node is node0 or not to perform additional checks (like connectivity check to the rendenzvous IP)

so that I can achieve

• Interactive installation with a single image

Acceptance Criteria:

Description of criteria:

• A dialog is presented on boot asking whether this node should be the one that controls the installation (node0)
• On regular nodes additional connectivity checks are performed towards rendezvous IP
• TUI writes Node0 configuration so the blocked node0 services can proceed (after network configuration and registry checks)

Engineering Details:

• There is a PoC of this dialog in https://github.com/openshift-agent-team/tui
• Final dialog in use with ABI: https://github.com/openshift/agent-installer-utils/

This does not require a design proposal.
This does not require a feature gate.