Commit 2266edb2 authored by Guido Trotter's avatar Guido Trotter
Browse files

Add new OSEnvironment function

This function calculates the basic environment for OS scripts in API
version 10.

Reviewed-by: iustinp
parent 4dd69592
......@@ -1273,6 +1273,51 @@ def OSFromDisk(name, base_dir=None):
def OSEnvironment(instance, debug=0):
"""Calculate the environment for an os script.
@type instance: instance object
@param instance: target instance for the os script run
@type debug: integer
@param debug: debug level (0 or 1, for os api 10)
@rtype: dict
@return: dict of environment variables
result = {}
result['OS_API_VERSION'] = '%d' % constants.OS_API_VERSION
result['INSTANCE_NAME'] =
result['HYPERVISOR'] = instance.hypervisor
result['DISK_COUNT'] = '%d' % len(instance.disks)
result['NIC_COUNT'] = '%d' % len(instance.nics)
result['DEBUG_LEVEL'] = '%d' % debug
for idx, disk in enumerate(instance.disks):
real_disk = _RecursiveFindBD(disk)
if real_disk is None:
raise errors.BlockDeviceError("Block device '%s' is not set up" %
result['DISK_%d_PATH' % idx] = real_disk.dev_path
# FIXME: When disks will have read-only mode, populate this
result['DISK_%d_ACCESS' % idx] = 'W'
if constants.HV_DISK_TYPE in instance.hvparams:
result['DISK_%d_FRONTEND_TYPE' % idx] = \
if disk.dev_type in constants.LDS_BLOCK:
result['DISK_%d_BACKEND_TYPE' % idx] = 'block'
elif disk.dev_type == constants.LD_FILE:
result['DISK_%d_BACKEND_TYPE' % idx] = \
'file:%s' % disk.physical_id[0]
for idx, nic in enumerate(instance.nics):
result['NIC_%d_MAC' % idx] = nic.mac
if nic.ip:
result['NIC_%d_IP' % idx] = nic.ip
result['NIC_%d_BRIDGE' % idx] = nic.bridge
if constants.HV_NIC_TYPE in instance.hvparams:
result['NIC_%d_FRONTEND_TYPE' % idx] = \
return result
def GrowBlockDevice(disk, amount):
"""Grow a stack of block devices.
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