def start_domain(uuid):
"""
Boots the domain for the first time after installation is complete.
"""
# Load the configuration file for this UUID.
domain = DomainDirectory()
config = domain.load_config(uuid)
# Connect to the hypervisor.
connection = libvirt.open(None)
# We will attempt to determine if the domain is configured to use a
# bootloader. If not, we'll have to explicitly use the kernel and initrd
# data provided in the config to start the domain.
try:
config.getConfigItem(DomainConfig.BOOTLOADER)
except DomainConfigError:
dce = sys.exc_info()[1]
# No bootloader tag present. Use pygrub to extract the kernel from
# the disk image if its Xen. For fully virt we dont have pygrub, it
# directly emulates the BIOS loading the first sector of the boot disk.
if connection.getType() == 'Xen':
# This uses pygrub which comes only with xen
_prepare_guest_kernel_and_ramdisk(config)
# Now, we'll restart the instance, this time using the re-create XML.
try:
domain = connection.createLinux(config.toXML(), 0)
except Exception:
e = sys.exc_info()[1]
raise_with_tb(
VirtualizationException(
"Error occurred while attempting to recreate domain %s: %s" %
(uuid, str(e))),
sys.exc_info()[2])
def start_domain(uuid):
"""
Boots the domain for the first time after installation is complete.
"""
# Load the configuration file for this UUID.
domain = DomainDirectory()
config = domain.load_config(uuid)
# Connect to the hypervisor.
connection = libvirt.open(None)
# We will attempt to determine if the domain is configured to use a
# bootloader. If not, we'll have to explicitly use the kernel and initrd
# data provided in the config to start the domain.
try:
config.getConfigItem(DomainConfig.BOOTLOADER)
except DomainConfigError:
dce = sys.exc_info()[1]
# No bootloader tag present. Use pygrub to extract the kernel from
# the disk image if its Xen. For fully virt we dont have pygrub, it
# directly emulates the BIOS loading the first sector of the boot disk.
if connection.getType() == 'Xen':
# This uses pygrub which comes only with xen
_prepare_guest_kernel_and_ramdisk(config)
# Now, we'll restart the instance, this time using the re-create XML.
try:
domain = connection.createLinux(config.toXML(), 0)
except Exception:
e = sys.exc_info()[1]
raise_with_tb(VirtualizationException("Error occurred while attempting to recreate domain %s: %s" %
(uuid, str(e))), sys.exc_info()[2])
def setVCPUs(uuid, vcpus):
"""
Sets the number of vcpus for the domain with the given UUID.
"""
domain_dir = DomainDirectory()
config = domain_dir.load_config(uuid)
config.setConfigItem(DomainConfig.VCPU, vcpus)
config.save()
domain_control.setVCPUs(uuid, vcpus)
def setMemory(uuid, memory):
"""
Sets the max memory usage for the domain with the given UUID.
"""
domain_dir = DomainDirectory()
config = domain_dir.load_config(uuid)
config.setConfigItem(DomainConfig.MEMORY, memory)
config.save()
domain_control.setMemory(uuid, memory)
def setVCPUs(uuid, vcpus):
"""
Sets the number of vcpus for the domain with the given UUID.
"""
domain_dir = DomainDirectory()
config = domain_dir.load_config(uuid)
config.setConfigItem(DomainConfig.VCPU, vcpus)
config.save()
domain_control.setVCPUs(uuid, vcpus)
def setMemory(uuid, memory):
"""
Sets the max memory usage for the domain with the given UUID.
"""
domain_dir = DomainDirectory()
config = domain_dir.load_config(uuid)
config.setConfigItem(DomainConfig.MEMORY, memory)
config.save()
domain_control.setMemory(uuid, memory)
def start_domain(uuid):
"""
Boots the domain for the first time after installation is complete.
"""
# Load the configuration file for this UUID.
domain = DomainDirectory()
config = domain.load_config(uuid)
# Connect to the hypervisor.
connection = libvirt.open(None)
# We will attempt to determine if the domain is configured to use a
# bootloader. If not, we'll have to explicitly use the kernel and initrd
# data provided in the config to start the domain.
try:
config.getConfigItem(DomainConfig.BOOTLOADER)
except DomainConfigError, dce:
# No bootloader tag present. Use pygrub to extract the kernel from
# the disk image if its Xen. For fully virt we dont have pygrub, it
# directly emulates the BIOS loading the first sector of the boot disk.
if connection.getType() == 'Xen':
# This uses pygrub which comes only with xen
_prepare_guest_kernel_and_ramdisk(config)
def start_domain(uuid):
"""
Boots the domain for the first time after installation is complete.
"""
# Load the configuration file for this UUID.
domain = DomainDirectory()
config = domain.load_config(uuid)
# Connect to the hypervisor.
connection = libvirt.open(None)
# We will attempt to determine if the domain is configured to use a
# bootloader. If not, we'll have to explicitly use the kernel and initrd
# data provided in the config to start the domain.
try:
config.getConfigItem(DomainConfig.BOOTLOADER)
except DomainConfigError, dce:
# No bootloader tag present. Use pygrub to extract the kernel from
# the disk image if its Xen. For fully virt we dont have pygrub, it
# directly emulates the BIOS loading the first sector of the boot disk.
if connection.getType() == 'Xen':
# This uses pygrub which comes only with xen
_prepare_guest_kernel_and_ramdisk(config)
