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vmdriver
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Commit
2543f1aa
authored
Sep 25, 2013
by
Guba Sándor
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wrapping libvirt errors
parent
37627d70
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1 changed file
with
35 additions
and
4 deletions
+35
-4
vmdriver.py
+35
-4
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vmdriver.py
View file @
2543f1aa
...
...
@@ -46,7 +46,18 @@ def req_connection(original_function, *args, **kw):
return
return_value
@decorator
def
wrap_libvirtError
(
original_function
,
*
args
,
**
kw
):
try
:
original_function
(
*
args
,
**
kw
)
except
libvirt
.
libvirtError
as
e
:
new_e
=
Exception
(
e
.
get_error_message
())
new_e
.
libvirtError
=
True
raise
new_e
@celery.task
@wrap_libvirtError
def
connect
(
connection_string
=
'qemu:///system'
):
'''Connect to the libvirt daemon specified in the
connection_string or the local root.
...
...
@@ -64,6 +75,7 @@ def connect(connection_string='qemu:///system'):
@celery.task
@wrap_libvirtError
def
disconnect
():
'''Disconnect from the active libvirt daemon connection.
'''
...
...
@@ -81,6 +93,7 @@ def disconnect():
@celery.task
@req_connection
@wrap_libvirtError
def
define
(
vm
):
'''Define permanent virtual machine from xml
'''
...
...
@@ -90,6 +103,7 @@ def define(vm):
@celery.task
@req_connection
@wrap_libvirtError
def
create
(
vm_desc
):
'''Create and start non-permanent virtual machine from xml
flags can be:
...
...
@@ -108,15 +122,16 @@ def create(vm_desc):
vm
.
dump_xml
(),
libvirt
.
VIR_DOMAIN_NONE
)
domain
=
connection
.
lookupByName
(
vm
.
name
)
domain
.
suspend
()
# Real driver create
else
:
connection
.
createXML
(
vm
.
dump_xml
(),
libvirt
.
VIR_DOMAIN_START_PAUSED
)
connection
.
createXML
(
vm
.
dump_xml
(),
libvirt
.
VIR_DOMAIN_START_PAUSED
)
logging
.
info
(
"Virtual machine
%
s is created from xml"
,
vm
.
name
)
@celery.task
@req_connection
@wrap_libvirtError
def
shutdown
(
name
):
'''Shutdown virtual machine (need ACPI support).
'''
...
...
@@ -126,6 +141,7 @@ def shutdown(name):
@celery.task
@req_connection
@wrap_libvirtError
def
delete
(
name
):
'''Destroy the running called 'name' virtual machine.
'''
...
...
@@ -135,6 +151,7 @@ def delete(name):
@celery.task
@req_connection
@wrap_libvirtError
def
list_domains
():
'''
:return list: List of domains name in host
...
...
@@ -148,6 +165,7 @@ def list_domains():
@celery.task
@req_connection
@wrap_libvirtError
def
lookupByName
(
name
):
'''Return with the requested Domain
'''
...
...
@@ -159,6 +177,7 @@ def lookupByName(name):
@celery.task
@req_connection
@wrap_libvirtError
def
undefine
(
name
):
'''Undefine an already defined virtual machine.
If it's running it becomes transient (lsot on reboot)
...
...
@@ -169,6 +188,7 @@ def undefine(name):
@celery.task
@req_connection
@wrap_libvirtError
def
start
(
name
):
'''Start an already defined virtual machine.
'''
...
...
@@ -178,6 +198,7 @@ def start(name):
@celery.task
@req_connection
@wrap_libvirtError
def
suspend
(
name
):
'''Stop virtual machine and save its memory to path.
'''
...
...
@@ -187,6 +208,7 @@ def suspend(name):
@celery.task
@req_connection
@wrap_libvirtError
def
save
(
name
,
path
):
'''Stop virtual machine and save its memory to path.
'''
...
...
@@ -196,6 +218,7 @@ def save(name, path):
@celery.task
@req_connection
@wrap_libvirtError
def
restore
(
path
):
'''Restore a saved virtual machine
from the memory image stored at path.'''
...
...
@@ -204,6 +227,7 @@ def restore(path):
@celery.task
@req_connection
@wrap_libvirtError
def
resume
(
name
):
'''Resume stopped virtual machines.
'''
...
...
@@ -213,6 +237,7 @@ def resume(name):
@celery.task
@req_connection
@wrap_libvirtError
def
reset
(
name
):
'''Reset (power reset) virtual machine.
'''
...
...
@@ -222,6 +247,7 @@ def reset(name):
@celery.task
@req_connection
@wrap_libvirtError
def
reboot
(
name
):
'''Reboot (with guest acpi support) virtual machine.
'''
...
...
@@ -231,6 +257,7 @@ def reboot(name):
@celery.task
@req_connection
@wrap_libvirtError
def
node_info
():
''' Get info from Host as dict:
model string indicating the CPU model
...
...
@@ -254,6 +281,7 @@ def node_info():
@celery.task
@req_connection
@wrap_libvirtError
def
domain_info
(
name
):
'''
state the running state, one of virDomainState
...
...
@@ -273,6 +301,7 @@ def domain_info(name):
@celery.task
@req_connection
@wrap_libvirtError
def
network_info
(
name
,
network
):
'''
rx_bytes
...
...
@@ -294,6 +323,7 @@ def network_info(name, network):
@celery.task
@req_connection
@wrap_libvirtError
def
send_key
(
name
,
key_code
):
''' Sending linux key_code to the name vm
key_code can be optained from linux_keys.py
...
...
@@ -310,6 +340,7 @@ def _stream_handler(stream, buf, opaque):
@celery.task
@req_connection
@wrap_libvirtError
def
screenshot
(
name
,
path
):
"""Save screenshot of virtual machine
to the path as name-screenshot.ppm
...
...
@@ -339,6 +370,7 @@ def screenshot(name, path):
@celery.task
@req_connection
@wrap_libvirtError
def
migrate
(
name
,
host
,
live
=
False
):
'''Migrate domain to host'''
flags
=
libvirt
.
VIR_MIGRATE_PEER2PEER
...
...
@@ -350,4 +382,3 @@ def migrate(name, host, live=False):
flags
=
flags
,
dname
=
name
,
bandwidth
=
0
)
# virDomainResume
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