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root / lib / hypervisor @ 08879a9d

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__init__.py 2 kB
hv_base.py 20.2 kB
hv_chroot.py 10.9 kB
hv_fake.py 10.8 kB
hv_kvm.py 103.2 kB
hv_lxc.py 15.9 kB
hv_xen.py 43.6 kB

Latest revisions

# Date Author Comment
08879a9d 05/29/2014 02:08 pm Dimitris Aragiorgis

ifdown: Use new methods to unconfigure NICs

We unconfigure a NIC (invoke ifdown script) during:

  • instance cleanup
  • finalizing successful migration on source node
  • hot-unplugging a NIC

In case of migration we do only a local cleanup.

Signed-off-by: Dimitris Aragiorgis <>
1fda39c4 05/29/2014 02:08 pm Dimitris Aragiorgis

ifdown: Use new methods to create NIC files

NIC files containing corresponding tap name are created during:

  • instance startup
  • NIC hot-add

For compatibility we continue creating indexed based NIC files along
with uuid based ones.

Signed-off-by: Dimitris Aragiorgis <>
3889f749 05/29/2014 02:08 pm Dimitris Aragiorgis

ifdown: Introduce _UnconfigureNIC() helper method

This method takes a NIC object, creates the proper invironment
and invokes ifdown script.

It takes an extra boolean argument only_local which is passed
to ifdown script as the second positional argument. It states...
79f3e9e9 05/29/2014 02:08 pm Dimitris Aragiorgis

ifdown: Make Read/LoadKVMRuntime classmethods

.. and make LoadKVMRuntime() take instance_name rather than the
whole instance object as first argument. This will be needed during
instance cleanup where we the instance object is not available.

We are going to retrieve current NIC configuration from the runtime...
0d2863a2 05/29/2014 02:08 pm Dimitris Aragiorgis

ifdown: Extract env creation from ConfigureNic()

Introduce new helper method that creates the environment passed
to ifup/ifdown scripts. Instance tags and NIC index will be passed
only during ifup script since only then are available and
valid. Both can change until a NIC gets removed and thus will not...
aec254f5 05/29/2014 02:08 pm Dimitris Aragiorgis

ifdown: Introduce helper methods

Until now Ganeti upon TAP creation, a NIC file was created
under $RUNDIR/kvm-hypervisor/nic/<instance_name>/<nic_index>

Since NICs have obtained a UUID, we are going to create another
file named after its UUID. This will be needed during ifdown...
18f16482 05/29/2014 02:08 pm Dimitris Aragiorgis

ifdown: Change kvm-if* scripts

  • Rename kvm-vif-bridge to kvm-ifup-custom
  • Search if /etc/ganeti/kvm-if*-custom is available
    and execute it instead
  • Pass positional argument to custom script

Signed-off-by: Dimitris Aragiorgis <>
1a1af037 05/29/2014 02:08 pm Dimitris Aragiorgis

(ext) Override disk_cache hvp with disk param in ext

This is a hack that brings disk_cache hypervisor param
at disk level. This is supported only for disks of ext
template that allow arbitrary params. The corresponding
param that should be used is 'cache'....
764fce21 05/29/2014 02:08 pm Dimitris Aragiorgis

(ext) Pass disk geometry in kvm command

Currently we allow this feature only for ext templates that
allow arbitrary params per disk. If both 'heads' and 'secs'
params are given then 'cyls' is calculated from the disk size.

TODO: export these params in IDISK_PARAMS since the can be...
ab0c6a39 05/29/2014 02:07 pm Dimitris Aragiorgis

(grnet) Move disk options before nic ones in kvm command

Older versions of Ganeti did ensure that during startup
disk devices will be inserted before nic devices in PCI
configuration space. KVM inserts devices to PCI slots
depending on the order of command line options....

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