import libvirt
-import xml.etree.ElementTree as ET
-
import os
import configparser
return self.connection
-class machine():
- def __init__(self, vm_xml_file, snapshot_xml_file, image, root_uid, username, password):
- self.log = log(4)
- self.con = libvirt_con("qemu:///system")
- try:
- with open(vm_xml_file) as fobj:
- self.vm_xml = fobj.read()
- except FileNotFoundError as error:
- self.log.error("No such file: {}".format(vm_xml_file))
-
- try:
- with open(snapshot_xml_file) as fobj:
- self.snapshot_xml = fobj.read()
- except FileNotFoundError as error:
- self.log.error("No such file: {}".format(snapshot_xml_file))
-
- self.image = image
-
- if not os.path.isfile(self.image):
- self.log.error("No such file: {}".format(self.image))
-
- self.root_uid = root_uid
- self.disk = disk(image)
-
- self.username = username
- self.password = password
-
- def define(self):
- self.dom = self.con.con.defineXML(self.vm_xml)
- if self.dom == None:
- self.log.error("Could not define VM")
- raise BaseException
-
- def start(self):
- if self.dom.create() < 0:
- self.log.error("Could not start VM")
- raise BaseException
-
- def shutdown(self):
- if self.is_running():
- if self.dom.shutdown() < 0:
- self.log.error("Could not shutdown VM")
- raise BaseException
- else:
- self.log.error("Domain is not running")
-
- def undefine(self):
- self.dom.undefine()
-
- def create_snapshot(self):
-
- self.snapshot = self.dom.snapshotCreateXML(self.snapshot_xml)
-
- if not self.snapshot:
- self.log.error("Could not create snapshot")
- raise BaseException
-
- def revert_snapshot(self):
- self.dom.revertToSnapshot(self.snapshot)
- self.snapshot.delete()
-
- def is_running(self):
-
- state, reason = self.dom.state()
-
- if state == libvirt.VIR_DOMAIN_RUNNING:
- return True
- else:
- return False
-
- def get_serial_device(self):
-
- if not self.is_running():
- raise BaseException
-
- xml_root = ET.fromstring(self.dom.XMLDesc(0))
-
- elem = xml_root.find("./devices/serial/source")
- return elem.get("path")
-
- def check_is_booted_up(self):
- serial_con = serial_connection(self.get_serial_device())
-
- serial_con.write("\n")
- # This will block till the domain is booted up
- serial_con.read(1)
-
- #serial_con.close()
-
- def login(self):
- try:
- self.serial_con = serial_connection(self.get_serial_device(), username=self.username)
- self.serial_con.login(self.password)
- except BaseException as e:
- self.log.error("Could not connect to the domain via serial console")
-
- def cmd(self, cmd):
- return self.serial_con.command(cmd)
-
- def copy_in(self, fr, to):
- try:
- self.disk.mount(self.root_uid, "/")
- self.disk.copy_in(fr, to)
- except BaseException as e:
- self.log.error(e)
- finally:
- self.disk.umount("/")
- self.disk.close()
-
-
-
-# A class which define and undefine a virtual network based on an xml file
-class network():
- def __init__(self, network_xml_file):
- self.log = log(4)
- self.con = libvirt_con("qemu:///system")
- try:
- with open(network_xml_file) as fobj:
- self.network_xml = fobj.read()
- except FileNotFoundError as error:
- self.log.error("No such file: {}".format(vm_xml_file))
-
- def define(self):
- self.network = self.con.con.networkDefineXML(self.network_xml)
-
- if network == None:
- self.log.error("Failed to define virtual network")
-
- def start(self):
- self.network.create()
-
- def undefine(self):
- self.network.destroy()
-
-
class RecipeExeption(Exception):
pass
self.virtual_networks[name].undefine()
-# Should return all vms and networks in a list
-# and should provide the path to the necessary xml files
-class virtual_environ():
- def __init__(self, path):
- self.log = log(4)
- try:
- self.path = os.path.abspath(path)
- except BaseException as e:
- self.log.error("Could not get absolute path")
-
- self.log.debug(self.path)
-
- self.settings_file = "{}/settings".format(self.path)
- if not os.path.isfile(self.settings_file):
- self.log.error("No such file: {}".format(self.settings_file))
-
- self.log.debug(self.settings_file)
- self.config = configparser.ConfigParser()
- self.config.read(self.settings_file)
- self.name = self.config["DEFAULT"]["name"]
- self.machines_string = self.config["DEFAULT"]["machines"]
- self.networks_string = self.config["DEFAULT"]["networks"]
-
- self.machines = []
- for machine in self.machines_string.split(","):
- self.machines.append(machine.strip())
-
- self.networks = []
- for network in self.networks_string.split(","):
- self.networks.append(network.strip())
-
- self.log.debug(self.machines)
- self.log.debug(self.networks)
-
- def get_networks(self):
- networks = {}
- for _network in self.networks:
- self.log.debug(_network)
- networks.setdefault(_network, network(os.path.normpath(self.path + "/" + self.config[_network]["xml_file"])))
- return networks
-
- def get_machines(self):
- machines = {}
- for _machine in self.machines:
- self.log.debug(_machine)
- machines.setdefault(_machine, machine(
- os.path.normpath(self.path + "/" + self.config[_machine]["xml_file"]),
- os.path.normpath(self.path + "/" + self.config[_machine]["snapshot_xml_file"]),
- self.config[_machine]["image"],
- self.config[_machine]["root_uid"],
- self.config[_machine]["username"],
- self.config[_machine]["password"]))
-
- return machines
-
- @property
- def machine_names(self):
- return self.machines
-
- @property
- def network_names(self):
- return self.networks
-
-
if __name__ == "__main__":
import argparse
projects / nitsi.git / blobdiff