def instantiate_configs(self,
managed_node,
image_store,
image_name,
image_location,
vm_config, image_config):
# get prepare template map
template_map = {}
store_location = image_store.get_remote_location(managed_node)
template_map["IMAGE_STORE"] = store_location
template_map["IMAGE_NAME"] = image_name
template_map["IMAGE_LOCATION"] = image_location
template_map["VM_NAME"] = vm_config["name"]
# Auto generated MAC address
# TODO: keep track of generated MAC's
template_map["AUTOGEN_MAC"] = randomMAC()
# image_config.instantiate_config(template_map)
# instantiate vm_config with image configuration
vm_config.instantiate_config(template_map)
if image_config is not None:
vm_config.instantiate_config(image_config)
def start(self, config, timeout=5):
if config is None:
raise Exception("No context provided to start the vm")
info = self.info()
if info.get(key_version):
v = info.get(key_version)
# if v.find('kvm-') < 0:
# raise Exception("You seem to have an older version of KVM/QEMU\n The version does not contain 'kvm-' token :%s\n Please make sure kvm-70 or higher is installed and is in PATH." % v)
# take the config.. and generate a cmdline for kvm/qemu
cmd = self.kvm_binary
known_options = self.kvm_options
if config.get("type") and config.get("type") == "qemu":
print "Using simple qemu"
cmd = self.qemu_binary
known_options = self.qemu_options
# build the cmd line
cmdline = cmd
vnc_processed = False
skip_kernel_rd = False
# add disks first
opt = "disk"
value = config.get(opt)
disk_entries = config.getDisks()
boot_flag=False
for d in disk_entries:
flag = 0
if d.device.find(":cdrom") > -1 or \
d.filename == ("/dev/cdrom"):
opt = "cdrom"
hd=d.device.replace(":cdrom","")
value1 = config.get(hd+"_use_drive_opt")
if value1 and value1==1:
flag = 1
opt=hd
else:
opt = d.device
use_drive = opt+"_use_drive_opt"
value1 = config.get(use_drive)
if value1 and value1==1:
flag = 1
value = d.filename
"""
here, if opt is either of vdx, then call one more function
which adds the -drive option and other values
"""
if opt.startswith("vd") or flag == 1:
drive_boot=to_str(config.get(opt+"_drive_boot"))
if drive_boot=="on":
cmdline = cmdline.replace(",boot=on","",1)
cmdline = self.qemuCall(cmdline, opt, value, config)
if boot_flag==False:
auto_boot=to_str(config.get("virtio_no_auto_boot"))
if auto_boot!="1":
cmdline+=",boot=on"
boot_flag=True
# mode, and type are not used.
# filename can be file or device so it would work.
# mode : Dont know how to specify readonly disk
else:
cmdline = self.process_option(cmdline, opt, value,
known_options)
for opt in config.keys():
value = config.get(opt)
opt = opt.replace("_", "-") # python prohibits - in variables
if opt == "extra":
opt = "append"
if opt == "memory" :
opt = "m"
elif opt == "vcpus":
opt = "smp"
elif opt == "stdvga":
opt = "std-vga"
if to_str(value) != '1':
continue
elif opt == "ramdisk":
opt = "initrd"
elif opt == "acpi":
if to_str(value) == '0':
cmdline = self.process_option(cmdline, "no-acpi", "",
known_options)
continue
elif opt == "vif" and not config.get("net"):
#Transform vif in to -net options
vifs = value
if vifs:
vlan=-1
for vif in vifs:
vlan = vlan + 1
parts = vif.split(',')
x = dict([p.strip().split('=') for p in parts])
macaddr = x.get("mac")
if not macaddr:
macaddr=randomMAC()
opt_val = "nic,vlan=%d,macaddr=%s" % ( vlan, macaddr)
# model
model = x.get("model")
if model:
opt_val = opt_val + ",model=" + model
cmdline = self.process_option(cmdline, "net",
opt_val, known_options)
# if bridge is specified, lets try to specify the script
# Assumes bridge is created and script would
# add the tap interface to the bridge
# TODO : if the bridge can be somehow specified as
# param to the script in /etc/qemu-ifup and
# /etc/qemu-ifdown
bridge=x.get("bridge")
mode = config.get("network_mode")
if not mode:
if bridge:
mode = "tap"
else:
mode = "user"
opt_val = "%s,vlan=%d" % (mode, vlan)
if mode == "tap":
# interface name
ifname = x.get("ifname")
if ifname:
opt_val = opt_val + ",ifname=" + ifname
# script
script = x.get("script")
if script:
opt_val = opt_val + ",script=" + script
down_script = x.get('down_script')
if down_script:
opt_val = opt_val + ",downscript=" +down_script
else:
# see if the bridge specific script is there.
if bridge:
s1 = "/etc/kvm/kvm-ifup-%s" % (bridge,)
s2 = "/etc/kvm/qemu-ifup-%s" % (bridge,)
s3 = "/etc/qemu-ifup-%s" % (bridge,)
s4 = "/etc/qemu/qemu-ifup-%s" % (bridge,)
for s in [ s1, s2, s3, s4 ]:
if self.node_proxy.file_exists(s):
# assume it is executable.
opt_val = opt_val + ",script=" + s
break
elif mode == "user":
# hostname
hname = x.get("hostname")
if hname:
opt_val = opt_val + ",hostname=" + hname
cmdline = self.process_option(cmdline, "net",
opt_val, known_options)
# TODO : Support custom script
continue
elif opt in ["vnc","vncdisplay"] and not vnc_processed:
vnc_processed = True
value = config.get("vnc")
if value == 1 or value == "1":
vncdisplay = config.get("vncdisplay")
if not vncdisplay:
vncdisplay = self.node.get_unused_display()
if vncdisplay:
value = ":" + to_str(vncdisplay)
cmdline = self.process_option(cmdline, opt, value,\
known_options)
continue
elif opt in ["kernel", "initrd", "append"] :
if not skip_kernel_rd :
# hack
k_value = config.get("kernel")
if k_value:
if k_value.find("hvmloader") > -1: #skip xen hvmloader
skip_kernel_rd = True
continue
else:
# ignore the initrd and append/extra too.
continue
if opt in self.kvm_options_no_v:
if value == 0 or value == "0" :
continue
value = ""
else:
if not value:
continue
cmdline = self.process_option(cmdline, opt, value, known_options)
# The following is done to have the convention and
# temporarily have the name of VM available in the command line.
if not self.node_proxy.file_exists(self.monitor_dir):
mkdir2(self.node, self.monitor_dir)
monitor_path = os.path.join(self.monitor_dir, config.get("name"))
cmdline = cmdline + " -monitor " + """"unix:%s,server,nowait\"""" % (monitor_path,)
pid_fname = os.path.join(self.pid_dir, config.get("name"))
cmdline = cmdline + " -pidfile " + """"%s\"""" % (pid_fname,)
#cmdline = cmdline + ' -localtime'
#cmdline = cmdline + ' clock=host'
# daemonize.. the command can return
cmdline = cmdline + " -daemonize"
#incoming_val = config.get("incoming")
#if incoming_val and (incoming_val.find("tcp://") == 0 or \
# incoming_val.find("ssh://") == 0 ):
# cmdline += " &"
cmdline = self.replaceCmdline(cmdline)
print "CMDLINE ***** ", cmdline
(output, ret) = self.node_proxy.exec_cmd(cmdline, self.kvm_binary_path,
timeout)
if ret != 0:
print "start failed :", cmdline,output
raise Exception((output, ret))
print "start : success ", output
self.get_vms()
if config.get('vncpasswd'):
self.set_vnc_password(config.get('name'),config.get('vncpasswd'))
return config.get("name")
