libvirt_python

一、Connections

# Example-1.py
from __future__ import print_function
import sys
import libvirt
conn = libvirt.open('qemu:///system')
if conn == None:
　　print('Failed to open connection to qemu:///system', file=sys.stderr)
exit(1)
conn.close()
exit(0)
# Example-2.py
from __future__ import print_function
import sys
import libvirt
conn = libvirt.openReadOnly('qemu:///system')
if conn == None:
　　print('Failed to open connection to qemu:///system', file=sys.stderr)
exit(1)
conn.close()
exit(0)

# Example-3.py
from __future__ import print_function
import sys
import libvirt
SASL_USER = "my-super-user"
SASL_PASS = "my-super-pass"
def request_cred(credentials, user_data):
for credential in credentials:
　　if credential[0] == libvirt.VIR_CRED_AUTHNAME:
　　　　credential[4] = SASL_USER
　　elif credential[0] == libvirt.VIR_CRED_PASSPHRASE:
　　　　credential[4] = SASL_PASS
return 0
auth = [[libvirt.VIR_CRED_AUTHNAME, libvirt.VIR_CRED_PASSPHRASE], request_cred, None]
conn = libvirt.openAuth('qemu+tcp://localhost/system', auth, 0)
if conn == None:
　　print('Failed to open connection to qemu+tcp://localhost/system', file=sys.stderr)
exit(1)
conn.close()