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