\u7b2c3\u6b65\u5230\u7b2c6\u6b65\u91cd\u8907\u57f7\u884c\u5230vm_lists\u6e05\u55ae\u4e2d\u7684\u5b57\u4e32\u6e05\u7a7a\uff0c\u6240\u6709\u7684\u865b\u64ec\u6a5f\u5c31\u5b8c\u5168\u90e8\u7f72\u5b8c\u7562\u3002<\/li>\n<\/ol>\n\u5728\u90e8\u7f72\u7684\u904e\u7a0b\u4e2d\uff0c\u7531\u65bcRAW\u7684\u6a94\u6848\u90fd\u5f88\u5927\uff08\u4ee5\u7b46\u8005\u5be6\u9a57\u7528\u7684Lubuntu\u4f5c\u696d\u7cfb\u7d71\uff0c\u4e5f\u89815GB\uff09\uff0c\u6240\u4ee5\u5728\u8907\u88fdRAW\u6a94\u6848\u7684\u6642\u5019\u6703\u82b1\u6bd4\u8f03\u4e45\u7684\u6642\u9593\uff08\u7b46\u8005\u7684\u5be6\u9a57Intel B820 CPU\uff0c\u50b3\u7d71\u786c\u789f\uff0cCentOS 7\u4e2d\u8907\u88fd5GB\u5927\u7d04\u89812~3\u5206\u9418\uff09\uff0c\u53e6\u5916\u4f60\u8a2d\u5b9a\u865b\u64ec\u4e3b\u6a5f\u6578\u91cf\u6642\uff0c\u4e5f\u8981\u6ce8\u610f\u6240\u6709\u53ef\u7528\u7684\u786c\u789f\u7a7a\u9593\u662f\u5426\u8db3\u5920\uff08NFS\u63d0\u4f9b\u7684\u7a7a\u9593\uff09\u3002<\/p>\n
\u9084\u6709\u4e00\u9ede\uff0c\u5728mount\u78c1\u5340\u5230\u5be6\u969b\u53ef\u4ee5\u4f7f\u7528\u4e2d\u9593\u9700\u8981\u4e00\u9ede\u6642\u9593\uff0c\u6240\u4ee5\u9069\u7576\u7684sleep\u6642\u9593\u662f\u9700\u8981\u7684\uff0c\u4e0d\u7136\u6703\u51fa\u73fe\u4e00\u4e9b\u6a94\u6848\u64cd\u4f5c\u7684\u932f\u8aa4\u3002\u4ee5\u4e0b\u5c31\u662f\u81ea\u52d5\u5316\u90e8\u7f72\u7684Python\u7a0b\u5f0f\u78bc\uff1a<\/p>\n
[code lang=”python”]
\n#! \/usr\/bin\/python <\/p>\n
import os, subprocess, sys, shutil, time
\nfrom sh import mount, umount
\nimport libvirt, random
\nimport xml.dom.minidom<\/p>\n
def getMAC():
\n\tmac = [ 0x00, 0x16,0x3e,
\n random.randint(0x00, 0x7f),
\n random.randint(0x00, 0xff),
\n random.randint(0x00, 0xff) ]
\n return ‘:’.join(map(lambda x: "%02x" % x , mac))<\/p>\n
def deploy_vm(base_raw, base_xml, vm_name, target_vm):
\n\tret = True
\n\tmac = getMAC()
\n\txmlfile = xml.dom.minidom.parse(base_xml)
\n\tdom_root = xmlfile.documentElement<\/p>\n
\tnewxml = dom_root.toxml()
\n\tname_tag = dom_root.getElementsByTagName(‘name’)
\n\tname_tag[0].firstChild.data = vm_name
\n\tmac_tag = dom_root.getElementsByTagName(‘mac’)
\n\tmac_tag[0].setAttribute(‘address’, mac)
\n\tdisk_tag = dom_root.getElementsByTagName(‘disk’)
\n\tfor disk in disk_tag:
\n\t\tif disk.getAttribute(‘device’) == ‘disk’:
\n\t\t\tsource_tag = disk.getElementsByTagName(‘source’)
\n\t\t\tsource_tag[0].setAttribute(‘file’, target_vm)
\n\t\t\tbreak
\n\tnewxml = dom_root.toxml()
\n\tprint "Coping the file: " + target_vm
\n\tprint "Please wait for serveral miniutes…"
\n\tshutil.copyfile(base_rawfile, target_vm)<\/p>\n
\tprint "Changing the hostname for %s…" % vm_name
\n\tp = subprocess.Popen([‘kpartx’, ‘-av’, target_vm],
\n\t\t\t\tstdout=subprocess.PIPE, stderr=subprocess.PIPE)
\n\tout, err = p.communicate()
\n\tparts = out.split()
\n\tmountp = ”
\n\tfor str in parts:
\n\t\tif str.startswith("loop"):
\n\t\t\tmountp = str
\n\t\t\tbreak
\n\ttarget_path = ‘\/mnt\/vm’
\n\tmount_path = ‘\/dev\/mapper\/’ + mountp<\/p>\n
\tif os.path.exists(target_path):
\n\t\tif os.path.ismount(target_path):
\n\t\t\tumount(target_path)
\n\telse:
\n\t\tos.mkdir(target_path)
\n\ttime.sleep(10)
\n\tprint "Try to mount the partition:", mount_path, target_path
\n\tmount(mount_path, target_path)
\n\twith open(‘\/mnt\/vm\/etc\/hostname’, ‘w’) as hostname_file:
\n\t\thostname_file.write(vm_name)
\n\tumount(target_path)
\n\tremove_raw_mapper = ‘kpartx -d ‘ + target_vm
\n\tsubprocess.call(remove_raw_mapper, shell=True)
\n#
\n# Create the new domain
\n#
\n\tdom = conn.defineXML(newxml)
\n\tdom.create()
\n\treturn ret
\n#
\n# start of main program
\n#
\n# VM settings
\n#
\nnew_vm_lists = [ ‘vm01′,’vm02′,’vm03′,’vm04’, ‘vm05’ ]
\ncurrent_vm_lists = []
\nRAW_PATH = ‘\/var\/lib\/libvirt\/images\/’
\n#
\n# check the number of arguments
\n#
\nif len(sys.argv)<2:
\n\tprint "Usage: %s <base_raw_image> <base_xml_file>" % sys.argv[0]
\n\tprint " File extension is not required."
\n\tprint "Example: %s base base" % sys.argv[0]
\n\texit(1)<\/p>\n
base_rawfile = RAW_PATH + sys.argv[1] + ".raw"
\nxml_file = os.path.abspath(sys.argv[2] + ".xml")
\n#
\n# check the existence of the base file
\n#
\nif not os.path.exists(base_rawfile):
\n\tprint " %s is not existing!" % base_rawfile
\n\texit(1)<\/p>\n
if not os.path.exists(xml_file):
\n\tprint " %s is not existing!" % xml_file
\n\texit(1)
\n#
\n# collect all of the existing domains for checking the duplication
\n#
\nconn = libvirt.open("qemu:\/\/\/system")
\nalldomains = conn.listAllDomains()<\/p>\n
for dm in alldomains:
\n\tcurrent_vm_lists.append(dm.name())<\/p>\n
print ‘\\nBase image file is %s. ‘ % base_rawfile
\nnew_vm_count = 0
\n#
\n# start to deploy the specified VMs
\n#
\nfor vm in new_vm_lists:
\n\tif any(vm in domain for domain in current_vm_lists):
\n\t\tprint "The name %s you specified is already exist!" % vm
\n\t\tcontinue
\n\telse:
\n\t\traw_filename = RAW_PATH + vm + ‘.raw’
\n\t\tif os.path.exists(raw_filename):
\n\t\t\tprint "The raw file " + raw_filename + " is exist"
\n\t\t\tcontinue
\n#
\n# Everything is OK, and go to deploy the virtual machine
\n#
\n\tif deploy_vm(base_rawfile, xml_file, vm, raw_filename):
\n\t\tnew_vm_count += 1<\/p>\n
print "Done!\\n %s Virtual Machines have been deployed!" % new_vm_count<\/p>\n
[\/code]<\/p>\n
\u7531\u65bc\u662f\u81ea\u7528\uff0c\u6240\u4ee5\u5728\u7a0b\u5f0f\u4e2d\u7701\u7565\u4e86\u8a31\u591a\u7684\u932f\u8aa4\u6aa2\u67e5\uff0c\u5be6\u7528\u4e0a\u9084\u662f\u81ea\u884c\u52a0\u5165\u70ba\u5b9c\u3002\u4e82\u6578\u7522\u751fMac Address\u7684\u526f\u7a0b\u5f0f\uff0c\u53d6\u81ea\u9019\u500b\u7db2\u5740\uff1arandomMAC<\/a>\u3002\u6b64\u5916\uff0c\u5728\u7a0b\u5f0f\u4e2d\uff0c\u6211\u5011\u4f7f\u7528defineXML\u4f86\u5efa\u7acb\u6c38\u4e45\u7684Domain\uff0c\u5982\u679c\u4f60\u8981\u5efa\u7acb\u7684\u662f\u66ab\u6642\u7684Domain\uff0c\u5728shutdown\u4e4b\u5f8c\u5c31\u6703\u6d88\u5931\u7684\uff0c\u5247\u76f4\u63a5\u4f7f\u7528createXML\u51fd\u6578\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u900f\u904eKVM\u5efa\u7acb\u597d\u4e86\u865b\u64ec\u4e3b\u6a5f\u74b0\u5883\u4e4b\u5f8c\uff0c\u6709\u6642\u5019\u60f3\u8981\u77e5\u9053\u9019\u53f0Node\u4e0a\u9762\u7a76\u7adf\u53ef\u4ee5\u57f7\u884c\u5230\u591a\u5c11\u53f0VM\uff0c\u60f3\u8a66\u8a66\u770b\u5b83\u7684\u80fd\u8010\u5230\u5e95\u5982\u4f55\uff0c\u7576\u7136\u4e0d\u53ef\u80fd\u5f9evirt-manager\u4e0a\u4e00\u53f0\u4e00\u53f0\u5b89\u88dd\uff0c\u9019\u6a23\u592a\u6162\u4e86\u3002\u6700\u597d\u7684\u65b9\u5f0f\uff0c\u662f\u5c31\u73fe\u6709\u6b63\u5728\u57f7\u884c\u4e2d\u7684VM\uff0c\u8907\u88fd\u5b83\u7684image\u6a94\u6848\uff0c\u7136\u5f8c\u518d\u505a\u4e00\u4e9b\u53c3\u6578\u4e0a\u7684\u4fee\u6539\u5c31\u53ef\u4ee5\u4e86\u3002\u9019\u6a23\u505a\u96d6\u7136\u6bd4\u8f03\u5feb\uff0c\u4f46\u662f\u8981\u65b0\u589e3\u30014\u53f0\u7576\u7136\u6c92\u6709\u554f\u984c\uff0c\u53ef\u662f\u5982\u679c\u8981\u90e8\u7f7210\u300120\u6216\u751a\u81f3100\u53f0\u7684\u8a71\uff0c\u6c92\u6709\u81ea\u52d5\u5316\u4e0d\u53ea\u4e0d\u65b9\u4fbf\uff0c\u800c\u4e14\u4e5f\u5bb9\u6613\u51fa\u932f\u3002\u9019\u6642\u5019\uff0c\u900f\u904epython-libvirt\u7a0b\u5f0f\u5eab\u4f86\u81ea\u52d5\u5316\u90e8\u7f72\uff0c\u5c31\u662f\u975e\u5e38\u65b9\u4fbf\u7684\u9078\u64c7\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[97,15,100],"tags":[167,207],"class_list":["post-400","post","type-post","status-publish","format-standard","hentry","category-kvm-libvirt","category-python","category-vm","tag-python-libvirt","tag-207"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/400","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/comments?post=400"}],"version-history":[{"count":0,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/400\/revisions"}],"wp:attachment":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/media?parent=400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/categories?post=400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/tags?post=400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}