Requirements:

• The unconfigured ignition should be the same as the existing ignition included in the agent.iso with the exception that only a select few ZTP assets are included:
  • InfraEnv
  • ClusterImageSet
  • AgentPullSecret
  • NMStateConfig (if provided) (only for interactive install)
• Other assets like ClusterDeployment, AgentClusterInstall, etc are excluded and will be mounted into the host later on using the config ISO. See AGENT-559. If the other assets are provided in the asset directory, they should be ignored.
• The following services are not enabled in the ignition:
  • apply-host-config.service
  • start-cluster-installation.service

Acceptance Criteria:

• Integration test to verify unconfigured ignition file is created and includes
  • InfraEnv
  • ClusterImageSet
  • Pull Secret
  • NMStateConfigs (if provided)
• Ignition can be used to generate a bootable agent.iso
  • ISO can be generated using '
    coreos-installer iso ignition embed'
  • Hosts booting this iso does not start cluster configuration

Engineering Details:

• Existing Agent Ignition asset: https://github.com/openshift/installer/blob/master/pkg/asset/agent/image/ignition.go
• The existing Agent Ignition asset could be refactored to use the UnconfiguredIgnition as a base and add in the Cluster specific configuration in its generate function.
  • And enable services that were disabled in the UnconfiguredIgnition