instance-guestfish

Ganeti OS-Interface utilizing guestfish. A secure and programatic way to modify instance disks.

Usage

• Step 1: provide a source for provisioning your instances:

  • create a tar ball with debootstrap (use examples/debian_ubuntu.sh)
  • create your own image via a ISO install (needes example documentation, image source not implemented yet)
  • use public cloud images (e.g. openstack) (examples needed, image source not implemented yet)

• Step 2: provide a distribution mechanism for your sources

  • copy the sources to every node (simple, stupid, time/disk consuming)
  • supply a HTTP server to stream your sources
  • supply the sources via a NFS mount to all your nodes (good, when NFS Server at hand)
  • store your source as a Ceph image
  • use a public HTTP server for cloud images

• Step 3: configure your OS variant

  • is the source an image or a tar ball?
  • is the source compressed?
  • what's the minimum disk size needed?
  • should ssh-keys or password be deployed?

OS variant configuration

For the moment see comments in variants/default.env