Feature pages are design documents that developers have created while collaborating on oVirt.

Most of them are outdated , but provide historical design context.

They are not user documentation and should not be treated as such.

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vm-init-persistent

VM-Init Persistent

Summary

This Feature will allow persistent of Windows Sysprep and Cloud-Init data to the Database. By persisting the data Admin can create a template with VM-Init data that which will enable initialize VMs with relevant Data.

Owner

  • Name: Shahar Havivi
  • Email: shaharh@redhatdotcom

Detailed Description

Currently we are persisting the Timezone and Domain for Sysprep Windows based machines and Cloud-init data via Run-Once dialog. We want to be able to add more granularity to Sysprep such as saving a Windows serial key and persisting the current Cloud-init data that we have via the Run-Once dialog. The VM-Init section will have its own tab in Add/Edit VM and will stay the same for the Run-Once dialog.

By adding a new table for initialization purpose of VMs the Domain field will move from vm_static table (VmBase business object) to the vm_init table (VmInit business object). We will have two forms of time-zone, The one that we currently have in vm_static will move to the System tab section in Add/Edit VM, this will represent the time-zone of the BIOS, the one that is represented in the qemu command line, The new time-zone that vm_init table have will represent the VM operating system time-zone.

VM-Init Table

     vm_id
     host_name
     domain
     authorized_keys
     regenerate_keys
     time_zone
     dns_servers
     dns_search_domains
     networks
     password
     winkey
     custom_script

Custom Script

Custom Script enable Cloud-Init the ability to add custom YAML sections (which is concatenated to the YAML generated by oVirt) such as adding file:

  write_files:
  -   content: |
          # THIS IS MY TEXT FILE
          Some Content for my file
      path: /tmp/myfile
      permissions: '0644'

More inforamation please refer to Cloud-Init Documentations.

Please note that an error in custom script will cause the Cloud-Init loading failure.

UX Design

UX Design page