initial commit

sample.xml

+<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
+        <name>one-2273</name>
+        <vcpu>1</vcpu>
+        <cputune>
+                <shares>512</shares>
+        </cputune>
+        <memory>1048576</memory>
+        <os>
+                <type arch='x86_64'>hvm</type>
+                <boot dev='hd'/>
+        </os>
+        <devices>
+                <emulator>/usr/bin/kvm</emulator>
+                <disk type='file' device='disk'>
+                        <source file='/datastore/0/2273/disk.0'/>
+                        <target dev='vda'/>
+                        <driver name='qemu' type='qcow2' cache='default'/>
+                </disk>
+                <disk type='file' device='cdrom'>
+                        <source file='/datastore/0/2273/disk.1'/>
+                        <target dev='hda'/>
+                        <readonly/>
+                        <driver name='qemu' type='raw'/>
+                </disk>
+                <interface type='ethernet'>
+                        <target dev='nw-2273-0'/>
+                        <mac address='02:00:0a:09:01:2d'/>
+                        <model type='virtio'/>
+                </interface>
+                <graphics type='vnc' listen='0.0.0.0' port='8173' passwd='usxdfmnkfk'/>
+        </devices>
+        <features>
+                <acpi/>
+        </features>
+        <cpu><topology sockets='1' cores='1' threads='1'/></cpu>
+</domain>
+

test.py

+import libvirt
+import sys
+
+# Open libvirt connection (local)
+connection = libvirt.open(None)
+
+# XML sample for testing
+xml_sample = '''
+<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
+        <name>one-2273</name>
+        <vcpu>1</vcpu>
+        <cputune>
+                <shares>512</shares>
+        </cputune>
+        <memory>1048576</memory>
+        <os>
+                <type arch='x86_64'>hvm</type>
+                <boot dev='hd'/>
+        </os>
+        <devices>
+                <emulator>/usr/bin/kvm</emulator>
+                <disk type='file' device='disk'>
+                        <source file='/datastore/0/2273/disk.0'/>
+                        <target dev='vda'/>
+                        <driver name='qemu' type='qcow2' cache='default'/>
+                </disk>
+                <disk type='file' device='cdrom'>
+                        <source file='/datastore/0/2273/disk.1'/>
+                        <target dev='hda'/>
+                        <readonly/>
+                        <driver name='qemu' type='raw'/>
+                </disk>
+                <interface type='bridge'>
+                        <source bridge='cloud'/>
+                        <mac address='02:00:0a:09:01:2d'/>
+                        <model type='virtio'/>
+                </interface>
+                <graphics type='vnc' listen='0.0.0.0' port='8173' passwd='usxdfmnkfk'/>
+        </devices>
+        <features>
+                <acpi/>
+        </features>
+        <cpu><topology sockets='1' cores='1' threads='1'/></cpu>
+</domain>
+'''
+
+if connection == None:
+    print "Fail to connect to libvirt daemon."
+    sys.exit(1)
+try
+    names = connection.listDefinedDomains()
+    print names
+    connection.defineXML(xml_sample)
+    print connection.listDefinedDomains()
+#    conn.undefineXML()
+

vm.py

+#!/usr/bin/env python
+import lxml.etree as ET
+
+# VM Instance class
+
+
+class VMInstance:
+    name = None
+    vcpu = None
+    cpu_share = None
+    memory_max = None
+    network_list = list()
+    disk_list = list()
+    context = dict()
+
+    def __init__(self,
+                 name,
+                 vcpu,
+                 cpu_share,
+                 memory_max,
+                 network_list,
+                 disk_list,
+                 context):
+        '''Default Virtual Machine constructor
+        '''
+        self.name = name
+        self.vcpu = vcpu
+        self.cpu_share = cpu_share
+        self.memory_max = memory_max
+        self.network_list = network_list
+        self.disk_list = disk_list
+        self.conext = context
+
+
+class VMDisk:
+    '''Virtual MAchine disk representing class
+    '''
+    name = None
+    source = None
+    disk_type = None
+    disk_device = None
+    driver_name = None
+    driver_type = None
+    driver_cache = None
+
+    def __init__(self,
+                 name,
+                 source,
+                 disk_type="file",
+                 disk_device="disk",
+                 driver_name="qemu",
+                 driver_type="qcow2",
+                 driver_cache="normal"):
+        self.name = name
+        self.source = source
+        self.disk_type = disk_type
+        self.disk_device = disk_device
+        self.driver_name = driver_name
+        self.driver_type = driver_type
+        self.driver_cache = driver_cache
+
+    def dump_xml(self):
+        xml_top = ET.Element('disk',
+                             attrib={'type': self.disk_type,
+                                     'device': self.disk_device})
+        ET.SubElement(xml_top, 'source',
+                      attrib={self.disk_type: self.source})
+
+
+class VMNetwork:
+
+    ''' Virtual Machine network representing class
+    name            -- network device name
+    mac             -- the MAC address of the quest interface
+    network_type    -- need to be "ethernet" by default
+    model           -- available models in libvirt
+    QoS             -- CIRCLE QoS class?
+    comment         -- Any comment
+    script          -- Executable network script /bin/true by default
+    '''
+    # Class attributes
+    name = None
+    network_type = None
+    mac = None
+    model = None
+    QoS = None
+    script_exec = '/bin/true'
+    comment = None
+
+    def __init__(self,
+                 name,
+                 mac,
+                 network_type='ethernet',
+                 model='virtio',
+                 QoS=None):
+        self.name = name
+        self.network_type = network_type
+        self.mac = mac
+        self.model = model
+        self.QoS = QoS
+
+    # XML dump
+    def dump_xml(self):
+        xml_top = ET.Element('interface', attrib={'type': self.network_type})
+        ET.SubElement(xml_top, 'target', attrib={'dev': self.name})
+        ET.SubElement(xml_top, 'mac', attrib={'address': self.mac})
+        ET.SubElement(xml_top, 'model', attrib={'type': self.model})
+        ET.SubElement(xml_top, 'script', attrib={'path': self.script_exec})
+        return ET.tostring(xml_top,
+                           encoding='utf8',
+                           method='xml',
+                           pretty_print=True)
+
+
+a = VMNetwork(name="vm-77", mac="010101")
+print a.dump_xml()

xmltest.py

+import xml.etree.ElementTree as ET 
+
+
+
+top = ET.Element('domain',attrib={'type':'kvm', 'xmlns:qemu':'http://libvirt.org/schemas/domain/qemu/1.0'})
+cpu = ET.SubElement(top,'cpu')
+#vcpu = 
+#cputune = 
+
+#devices =
+
+xml_dump = ET.tostring(top)
+
+print xml_dump
+