mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-05 04:41:20 +00:00
e4384459c9
This is more flexible regarding the location of the python binary but doesn't allow to pass the -u flag. The -i flag can be passed from inside the script using the PYTHONINSPECT env variable. This fixes a problem with the esx_vi_generator.py on FreeBSD.
156 lines
5.0 KiB
Python
Executable File
156 lines
5.0 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# esxlist - list active domains of an ESX host and print some info.
|
|
# also demonstrates how to use the libvirt.openAuth() method
|
|
|
|
import libvirt
|
|
import sys
|
|
import os
|
|
import libxml2
|
|
import getpass
|
|
|
|
|
|
def usage():
|
|
print "Usage: %s HOSTNAME" % sys.argv[0]
|
|
print " List active domains of HOSTNAME and print some info"
|
|
|
|
|
|
# This is the callback method passed to libvirt.openAuth() (see below).
|
|
#
|
|
# The credentials argument is a list of credentials that libvirt (actually
|
|
# the ESX driver) would like to request. An element of this list is itself a
|
|
# list containing 5 items (4 inputs, 1 output):
|
|
# - the credential type, e.g. libvirt.VIR_CRED_AUTHNAME
|
|
# - a prompt to be displayed to the user
|
|
# - a challenge, the ESX driver sets this to the hostname to allow automatic
|
|
# distinction between requests for ESX and vCenter credentials
|
|
# - a default result for the request
|
|
# - a place to store the actual result for the request
|
|
#
|
|
# The user_data argument is the user data item of the auth argument (see below)
|
|
# passed to libvirt.openAuth().
|
|
def request_credentials(credentials, user_data):
|
|
for credential in credentials:
|
|
if credential[0] == libvirt.VIR_CRED_AUTHNAME:
|
|
# prompt the user to input a authname. display the provided message
|
|
credential[4] = raw_input(credential[1] + ": ")
|
|
|
|
# if the user just hits enter raw_input() returns an empty string.
|
|
# in this case return the default result through the last item of
|
|
# the list
|
|
if len(credential[4]) == 0:
|
|
credential[4] = credential[3]
|
|
elif credential[0] == libvirt.VIR_CRED_NOECHOPROMPT:
|
|
# use the getpass module to prompt the user to input a password.
|
|
# display the provided message and return the result through the
|
|
# last item of the list
|
|
credential[4] = getpass.getpass(credential[1] + ": ")
|
|
else:
|
|
return -1
|
|
|
|
return 0
|
|
|
|
|
|
def print_section(title):
|
|
print "\n%s" % title
|
|
print "=" * 60
|
|
|
|
|
|
def print_entry(key, value):
|
|
print "%-10s %-10s" % (key, value)
|
|
|
|
|
|
def print_xml(key, ctx, path):
|
|
res = ctx.xpathEval(path)
|
|
|
|
if res is None or len(res) == 0:
|
|
value = "Unknown"
|
|
else:
|
|
value = res[0].content
|
|
|
|
print_entry(key, value)
|
|
|
|
return value
|
|
|
|
|
|
if len(sys.argv) != 2:
|
|
usage()
|
|
sys.exit(2)
|
|
|
|
|
|
hostname = sys.argv[1]
|
|
|
|
# Connect to libvirt
|
|
uri = "esx://%s/?no_verify=1" % hostname
|
|
|
|
# The auth argument is a list that contains 3 items:
|
|
# - a list of supported credential types
|
|
# - a callable that takes 2 arguments
|
|
# - user data that will be passed to the callable as second argument
|
|
#
|
|
# In this example the supported credential types are VIR_CRED_AUTHNAME and
|
|
# VIR_CRED_NOECHOPROMPT, the callable is the unbound method request_credentials
|
|
# (see above) and the user data is None.
|
|
#
|
|
# libvirt (actually the ESX driver) will call the callable to request
|
|
# credentials in order to log into the ESX host. The callable would also be
|
|
# called if the connection URI would reference a vCenter to request credentials
|
|
# in order to log into the vCenter
|
|
auth = [[libvirt.VIR_CRED_AUTHNAME, libvirt.VIR_CRED_NOECHOPROMPT],
|
|
request_credentials, None]
|
|
conn = libvirt.openAuth(uri, auth, 0)
|
|
|
|
if conn is None:
|
|
print "Failed to open connection to %s" % hostname
|
|
sys.exit(1)
|
|
|
|
state_names = { libvirt.VIR_DOMAIN_RUNNING : "running",
|
|
libvirt.VIR_DOMAIN_BLOCKED : "idle",
|
|
libvirt.VIR_DOMAIN_PAUSED : "paused",
|
|
libvirt.VIR_DOMAIN_SHUTDOWN : "in shutdown",
|
|
libvirt.VIR_DOMAIN_SHUTOFF : "shut off",
|
|
libvirt.VIR_DOMAIN_CRASHED : "crashed",
|
|
libvirt.VIR_DOMAIN_NOSTATE : "no state" }
|
|
|
|
for id in conn.listDomainsID():
|
|
domain = conn.lookupByID(id)
|
|
info = domain.info()
|
|
|
|
print_section("Domain " + domain.name())
|
|
print_entry("ID:", id)
|
|
print_entry("UUID:", domain.UUIDString())
|
|
print_entry("State:", state_names[info[0]])
|
|
print_entry("MaxMem:", info[1])
|
|
print_entry("UsedMem:", info[2])
|
|
print_entry("VCPUs:", info[3])
|
|
|
|
# Read some info from the XML desc
|
|
print_section("Devices of " + domain.name())
|
|
|
|
xmldesc = domain.XMLDesc(0)
|
|
doc = libxml2.parseDoc(xmldesc)
|
|
ctx = doc.xpathNewContext()
|
|
devs = ctx.xpathEval("/domain/devices/*")
|
|
first = True
|
|
|
|
for d in devs:
|
|
ctx.setContextNode(d)
|
|
|
|
if not first:
|
|
print "------------------------------------------------------------"
|
|
else:
|
|
first = False
|
|
|
|
print_entry("Device", d.name)
|
|
|
|
type = print_xml("Type:", ctx, "@type")
|
|
|
|
if type == "file":
|
|
print_xml("Source:", ctx, "source/@file")
|
|
print_xml("Target:", ctx, "target/@dev")
|
|
elif type == "block":
|
|
print_xml("Source:", ctx, "source/@dev")
|
|
print_xml("Target:", ctx, "target/@dev")
|
|
elif type == "bridge":
|
|
print_xml("Source:", ctx, "source/@bridge")
|
|
print_xml("MAC Addr:", ctx, "mac/@address")
|