10:29 p.m.
---
repos/domain/update_devflag.py | 163 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 163 insertions(+), 0 deletions(-)
create mode 100644 repos/domain/update_devflag.py
diff --git a/repos/domain/update_devflag.py b/repos/domain/update_devflag.py
new file mode 100644
index 0000000..287f2a5
--- /dev/null
+++ b/repos/domain/update_devflag.py
@@ -0,0 +1,163 @@
+#!/usr/bin/evn python
+"""Update virtual device to guest from an XML file
+"""
+
+__author__ = 'Nan Zhang: nzhang(a)redhat.com'
+__date__ = 'Fri Sep 2, 2011'
+__version__ = '0.1.0'
+__credits__ = 'Copyright (C) 2011 Red Hat, Inc.'
+__all__ = ['usage', 'update_devflag']
+
+import os
+import re
+import sys
+import commands
+from xml.dom import minidom
+
+def append_path(path):
+ """Append root path of package"""
+ if path in sys.path:
+ pass
+ else:
+ sys.path.append(path)
+
+pwd = os.getcwd()
+result = re.search('(.*)libvirt-test-API', pwd)
+append_path(result.group(0))
+
+from lib import connectAPI
+from lib import domainAPI
+from utils.Python import utils
+from utils.Python import xmlbuilder
+from exception import LibvirtAPI
+
+def usage():
+ print '''usage: mandatory arguments:
+ guestname
+ devtype
+ '''
+
+def check_params(params):
+ """Verify inputing parameter dictionary"""
+ logger = params['logger']
+ keys = ['guestname', 'devtype']
+ for key in keys:
+ if key not in params:
+ logger.error("%s is required" %key)
+ usage()
+ return 1
+ return 0
+
+def create_image(params, img_name, img_size):
+ """Create an image file"""
+ logger = params['logger']
+ stat, ret = commands.getstatusoutput("dd if=/dev/zero of=%s bs=1 \
+ count=1 seek=%s" % (img_name, img_size))
+ if stat == 0:
+ logger.debug("create image result:\n%s" % ret)
+ return True
+ else:
+ return False
+
+def check_updated_device(params, guestname, domobj, srcfile):
+ """Check if the device is updated"""
+ logger = params['logger']
+ xmlobj = domobj.get_xml_desc(guestname)
+ domxml = minidom.parseString(xmlobj)
+
+ for diskTag in domxml.getElementsByTagName("source"):
+ if diskTag.parentNode.getAttribute("device") == 'cdrom':
+ upfile = diskTag.getAttribute("file")
+ elif diskTag.parentNode.getAttribute('device') == 'floppy':
+ upfile = diskTag.getAttribute("file")
+
+ if upfile == srcfile:
+ return False, upfile
+ else:
+ return True, upfile
+
+def update_devflag(params):
+ """Update virtual device to a domain from xml"""
+
+ # Initiate and check parameters
+ params_check_result = check_params(params)
+ if params_check_result:
+ return 1
+ logger = params['logger']
+ guestname = params['guestname']
+ devtype = params['devtype']
+ if devtype == 'cdrom':
+ xmlargs = {}
+ xmlargs['guestname'] = guestname
+ xmlargs['guesttype'] = 'kvm'
+ xmlargs['hdmodel'] = 'ide'
+ xmlargs['bootcd'] = '/var/lib/libvirt/boot/cdrom.img'
+ srcfile = xmlargs['bootcd']
+ create_image(params, srcfile, '100M')
+ elif devtype == 'floppy':
+ xmlargs = {}
+ xmlargs['guestname'] = guestname
+ xmlargs['floppysource'] = '/var/lib/libvirt/boot/floppy.img'
+ srcfile = xmlargs['floppysource']
+ create_image(params, srcfile, '2M')
+ else:
+ srcfile = None
+ logger.error("Wrong device type was specified.")
+ return 1
+
+ if not params.has_key('flag'):
+ flag = domainAPI.VIR_DOMAIN_AFFECT_CONFIG
+
+ # Connect to local hypervisor connection URI
+ util = utils.Utils()
+ uri = util.get_uri('127.0.0.1')
+ conn = connectAPI.ConnectAPI()
+ virconn = conn.open(uri)
+
+ caps = conn.get_caps()
+ logger.debug(caps)
+
+ # Generate device XML for updating
+ domobj = domainAPI.DomainAPI(virconn)
+ newxmlobj = xmlbuilder.XmlBuilder()
+
+ if devtype == 'cdrom':
+ newdevxml = newxmlobj.build_cdrom(xmlargs)
+ elif devtype == 'floppy':
+ newdevxml = newxmlobj.build_floppy(xmlargs)
+
+ logger.debug("block device xml desc:\n%s" %newdevxml)
+
+ try:
+ try:
+ domobj.update_device_flag(guestname, newdevxml, flag)
+ res, upfile = check_updated_device(params, guestname, \
+ domobj, srcfile)
+ if res:
+ logger.info("success to update '%s' device: %s\n" % \
+ (devtype, upfile))
+ else:
+ logger.error("fail to update '%s' device: %s\n" % \
+ (devtype, upfile))
+ except LibvirtAPI, e:
+ logger.error("API error message: %s, error code is %s" %
+ (e.response()['message'],
e.response()['code']))
+ conn.close()
+ logger.info("closed hypervisor connection")
+ return 1
+ finally:
+ conn.close()
+ logger.info("closed hypervisor connection")
+
+ return 0
+
+def update_devflag_clean(params):
+ """Clean testing environment"""
+ logger = params['logger']
+
+ if params['devtype'] == 'cdrom':
+ os.unlink('/var/lib/libvirt/boot/cdrom.img')
+ elif params['devtype'] == 'floppy':
+ os.unlink('/var/lib/libvirt/boot/floppy.img')
+ else:
+ logger.debug("image file was not found.")
--
1.7.4.4