# -*- mode: python; -*- import sipb_xen_database.models as models from sipb_xen_database import connect import re import tempfile from subprocess import call connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen') prefix = "d_" # 'machine_name', and optionally 'cdrom_image', should get passed in # from the xm create call def check(b): if not b: import sys sys.exit(1) machine = models.Machine.get_by(name=machine_name) check(machine is not None) machine_type = models.Type.get_by(type_id=machine.type_id) memory = machine.memory maxmem = memory check(re.match('^[A-Za-z0-9][A-Za-z0-9._-]*$', machine.name)) name = prefix + machine.name check(re.match('^[0-9a-f-]+$', machine.uuid)) uuid = machine.uuid vcpus = machine.cpus diskioemu = "" viftype = "" pae = machine_type.pae acpi = machine_type.acpi apic = machine_type.apic vif = [] disk = [] if machine_type.hvm: codepath = 'hvm' else: codepath = 'paravm' if 'mirror' in locals(): #Installer disk.append('phy:/dev/xenvg/d_foobar3_hda,hdb,r') kernel = '/boot/vmlinuz-2.6.24-19-xen' #From hardy ramdisk = '/boot/initrd.img-2.6.24-19-xen' if not machine.nics: raise RuntimeError('You must have a nic to autoinstall') n = machine.nics[0] extra = 'ro noresume' extra += ' ip=%s::18.181.0.1:255.255.0.0:%s:eth0:off' % (n.ip, machine.name) extra += ' mirror=%s dist=%s' % (mirror, dist) extra += ' imagesize=%s' % imagesize if 'noinstall' in locals(): extra += ' noinstall' root = '/dev/hdb1' codepath = None elif 'cdrom_image' in locals(): check(re.match('^[A-Za-z0-9][A-Za-z0-9_.-]*$', cdrom_image)) disk.append('file:/srv/images/' + cdrom_image + '.iso,hdc:cdrom,r') boot = 'd' codepath = 'hvm' if codepath == 'hvm': ioemu = "ioemu:" viftype = "type=ioemu, " kernel = 'hvmloader' builder = 'hvm' vnc = 1 vncpasswd = 'moocow' device_model = '/usr/sbin/qemu-dm-sipb' serial = "pty" elif codepath == 'paravm': bootloader = '/usr/lib/xen-default/bin/pygrub' for n in machine.nics: check(re.match('^[0-9a-fA-F:]+$', n.mac_addr) and re.match('^[0-9.]*$', n.ip)) d = '%smac=%s, ip=%s, bridge=xenbr0, script=vif-sipbroute' % (viftype, n.mac_addr, n.ip) vif.append(d) for d in machine.disks: check(re.match('^[A-Za-z0-9]+$', d.guest_device_name)) device = '/dev/xenvg/' + prefix + machine.name + '_' + d.guest_device_name dspec = 'phy:%s,%s%s,w' % (device, diskioemu, d.guest_device_name) disk.append(dspec) usbdevice = 'tablet' on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'destroy' if machine.autorestart: on_crash = 'restart'