def install(self):
if re.search("^centos4", self.template_name):
d = centos4(self)
elif re.search("^centos5", self.template_name):
self.os = centos5(self)
self.os.install()
elif re.search("^centos6", self.template_name):
self.os = centos6(self)
self.os.install()
elif re.search("^centos7", self.template_name):
self.os = centos7(self)
self.os.install()
elif re.search("^rhel6", self.template_name):
d = rhel6(self)
elif re.search("^debian5", self.template_name):
self.os = debian5(self)
self.os.install()
elif re.search("^debian6", self.template_name):
self.os = debian6(self)
self.os.install()
elif re.search("^debian7", self.template_name):
self.os = debian7(self)
self.os.install()
elif re.search("^debian8", self.template_name):
self.os = debian8(self)
self.os.install()
elif self.template_name == "dummy":
self.os = dummy(self)
self.os.install()
pinfo("Install dummy template (only create disk and VM definition file)")
elif re.search("^ubuntu1604", self.template_name):
self.os = ubuntu1604(self)
self.os.install()
else:
die(self.template_name + " is unsupported")
def create_disk(self):
volume_size = self.root_size + self.swap_size + self.data_size
if volume_size < 1:
die("Volume size is too small")
if self.do_lvm:
pinfo("Create virtual machine logical volume")
lvcreate_cmd = ["lvcreate", "-y", self.lvm_vg, "-L", str(volume_size) + "G", "-n", self.lvm_lv ]
if not self.lvm_physical_disk == None:
lvcreate_cmd.append(self.lvm_physical_disk)
if vmc.utils.lvm.locking_type() == 4:
vmc.utils.lvm.unlock()
subprocess.call(lvcreate_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
vmc.utils.lvm.lock(4)
vmc.utils.lvm.lv_activate(self.disk_path, self.cluster_nodes)
# CLVM locking or single host
else:
subprocess.call(lvcreate_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
else:
pinfo("Create virtual machine disk image")
subprocess.call(["qemu-img", "create", "-f", "raw", \
self.disk_path, \
str(volume_size) + "G"], \
stdout=subprocess.PIPE, \
stderr=subprocess.PIPE)
def vmc_lock(lockfile, action):
if not os.path.exists(lockfile):
f = open(lockfile, "w")
f.write(socket.gethostname() + " -> " + action + "\n")
f.close()
else:
f = open(lockfile, "r")
o = f.read().strip()
f.close
die("Locked by " + o)
def create_local_config(bridge_id, do_vlan=False, phydev="bond0"):
pinfo("Create bridge config file")
bridge_cfg_file = "/etc/sysconfig/network-scripts/ifcfg-br%d" % bridge_id
if not os.path.exists(bridge_cfg_file):
with open(bridge_cfg_file, "w") as f:
f.write(netbridge_file(bridge_id))
else:
die("\"br%d\" bridge already exists, exiting..." % bridge_id)
pinfo("Activating bridge")
call(["ifup", "br%d" % bridge_id])
if do_vlan:
pinfo("Create VLAN config file")
vlan_cfg_file = "/etc/sysconfig/network-scripts/ifcfg-%s.%d" % (phydev, bridge_id)
if not os.path.exists(vlan_cfg_file):
with open(vlan_cfg_file, "w") as f:
f.write(netvlan_file(phydev, bridge_id, bridge_id))
else:
die("\"%d\" bridge already exists, exiting...")
pinfo("Activating VLAN")
call(["ifup", "%s.%d" % (phydev, bridge_id)])
)
try:
dest = sys.argv[1]
if dest == "--help" or dest == "-h":
usage()
except:
usage()
sys.exit(1)
try:
conn = libvirt.open(None)
dconn = libvirt.open("qemu+ssh://" + dest + "/system")
except:
perror("Unable to connect to the libvirt daemon")
sys.exit(1)
for domain in conn.listAllDomains():
if domain.isActive():
try:
pinfo("Migrate %s on %s" % (domain.name(), dest))
domain.migrate(dconn, libvirt.VIR_MIGRATE_LIVE)
except:
die("Something goes wrong during the migration")
dconn.close()
conn.close()
sys.exit(0)
def check(self):
if self.name == None:
die("VM name is not set")
if self.arch == None:
die("VM arch is not set")
if self.vcpu == None:
die("VM vcpu is not set")
if self.memory == None:
die("VM memory is not set")
if self.bridge_intf == None:
die("VM bridge interface is not set")
if self.template_name == None:
die("VM template name is not set")
if self.libvirt_domain_dir == None:
die("VM libvirt domain directory is not set")
external_tools = ["brctl", "blkid", "du", "fdisk", "mount", "sync", "tar", "umount", "uuidgen", "losetup"]
if self.do_lvm:
if self.lvm_vg == None:
die("Volume group is not set")
self.lvm_lv = "VM_" + self.name
self.disk_path = "/dev/" + self.lvm_vg + "/" + self.lvm_lv
external_tools.append("lvcreate")
external_tools.append("pvs")
else:
if self.img_disk_dir == None:
die("VM image disk directory is not set")
if not os.path.exists(self.img_disk_dir):
die(self.img_disk_dir + " : directory doesn't exists")
self.disk_path = self.img_disk_dir + "/VM_" + self.name + ".img"
external_tools.append("qemu-img")
if os.path.exists(self.disk_path):
die(self.disk_path + " : already exists")
for cmd in external_tools:
if which(cmd) == None:
die(cmd + " : command not found")
if not os.path.exists(self.libvirt_domain_dir):
die(self.libvirt_domain_dir + " : directory doesn't exists")
self.libvirt_domain_file = self.libvirt_domain_dir + "/" + self.name + "." + self.domain + ".xml"
if os.path.exists(self.libvirt_domain_file):
die(self.libvirt_domain_file + " : already exists")
if not len(self.list_available_templates()) > 0:
die("No templates available")
if self.do_cluster:
if not unique_domain(self.name + "." + self.domain, self.cluster_nodes):
die(vm.name + "." + vm.domain + " is already defined")
else:
if not unique_domain(self.name + "." + self.domain):
die(self.name + "." + self.domain + " is already defined")
self.template_path = self.template_dir + '/' + self.template_name + \
'-' + self.arch + ".tar"
if not os.path.exists(self.template_path):
die(self.template_path + " : the selected template does not exists")
""" % os.path.basename(sys.argv[0]))
try:
todelete = sys.argv[1]
if todelete == "--help" or todelete == "-h":
usage()
os._exit(0)
except:
usage()
sys.exit(1)
conf = vmcConfig()
xml_file_path = conf.libvirt_domain_dir + "/" + todelete + ".xml"
if not os.path.exists(xml_file_path):
die(xml_file_path + " : doesn't exists")
xml_dom = parse(xml_file_path)
disk_todelete = []
for disk in xml_dom.getElementsByTagName('disk'):
if disk.attributes['device'].value == 'disk':
disk_todelete.append(disk.getElementsByTagName('source')[0].attributes['dev'].value)
if conf.do_cluster:
# Check if the domain is running somewhere
# And undefine everywhere
for h in conf.cluster_nodes:
conn = libvirt.open("qemu+ssh://" + h + "/system")
try:
import libvirt
from vmc.common import pinfo, perror, die
from vmc.utils.openwide import vmc_unlock, vmc_lock
import vmc.utils.lvm
def usage():
print ("""Usage : %s
Lock LVM metadata
-h, --help Display help information
""" % os.path.basename(sys.argv[0]))
try:
dest = sys.argv[1]
if dest == "--help" or dest == "-h":
usage()
except:
pass
conf = vmcConfig()
if vmc.utils.lvm.locking_type() == 4:
die("LVM metadata are already locked")
vmc.utils.lvm.lock()
vmc_unlock(conf.lockfile)
pinfo("LVM metadata are now locked")
sys.exit(0)
-h, --help Display help information
""" % os.path.basename(sys.argv[0]))
try:
domain = sys.argv[1]
if domain == "--help" or domain == "-h":
usage()
except:
usage()
sys.exit(1)
conf = vmcConfig()
if not conf.do_lvm:
die("VM storage is not set to LVM")
xml_file_path = conf.libvirt_domain_dir + "/" + domain + ".xml"
if not os.path.exists(xml_file_path):
die(xml_file_path + " : doesn't exists")
xml_dom = parse(xml_file_path)
for disk in xml_dom.getElementsByTagName('disk'):
if disk.attributes['device'].value == 'disk':
d = disk.getElementsByTagName('source')[0].attributes['dev'].value
if conf.do_cluster:
pinfo("Deactivate LV %s on: %s" % (d, ', '.join(conf.cluster_nodes)))
lv_deactivate(d, conf.cluster_nodes)
else:
pinfo("Deactivate LV %s " + d)
call(["ssh", "-l", "root", node, "%s -b %d" % (script_path, bridge_id)])
bridge_id = 0
do_vlan = False
phydev = "bond0"
export_config = False
if len(sys.argv) <= 1:
message = "\n"
try:
resp = input("Entrer the bridge id (exemple 13 for br13) :\n")
bridge_id = int(resp)
except:
pass
die("\"%s\" is not a valid birdge id value" % resp)
message += "Bridge interface: br%d\n" % bridge_id
resp = input ("Do you want to create associated VLAN ? (Y/n): ")
if resp.lower() == "y" or resp.lower() == "yes":
do_vlan = True
resp = input ("Enter the physical device used for VLAN %d (default bond0) :\n" % bridge_id)
if resp:
phydev = resp
message += "VLAN interface: %s.%s\n" % (phydev, bridge_id)
message += "Physical device : %s\n\n" % phydev
resp = input(message + "Do you confirm creation ? (Y/n): ")
-h, --help Display help information
""" % os.path.basename(sys.argv[0]))
try:
todefine = sys.argv[1]
if todefine == "--help" or todefine == "-h":
usage()
except:
usage()
sys.exit(1)
conf = vmcConfig()
xml_file_path = conf.libvirt_domain_dir + "/" + todefine + ".xml"
if not os.path.exists(xml_file_path):
die(xml_file_path + " : doesn't exists")
try:
with open(xml_file_path, "r") as f:
xmldom = f.read()
except:
pass
die("Unable to read %s file" % xml_file_path,)
if conf.do_cluster:
for h in conf.cluster_nodes:
pinfo("Define %s on %s" % (xml_file_path, h))
conn = libvirt.open("qemu+ssh://" + h + "/system")
conn.defineXML(xmldom)
conn.close()
