# -*- 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 = "" if machine_type.hvm: ioemu = "ioemu:" viftype = "type=ioemu, " kernel = 'hvmloader' builder = 'hvm' vnc = 1 vncpasswd = 'moocow' device_model = '/usr/sbin/qemu-dm-sipb' else: kernel = '/boot/vmlinuz-2.6.18-4-xen-amd64' ramdisk = '/boot/initrd.img-2.6.18-4-xen-amd64' builder = 'linux' pae = machine_type.pae acpi = machine_type.acpi apic = machine_type.apic vif = [] 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) disk = [] for d in machine.disks: check(re.match('^[A-Za-z0-9]+$', d.guest_device_name)) device = '/dev/xenvg/' + prefix + machine.name + '_' + d.guest_device_name dspec = 'phy:%s,%s%s,w' % (device, diskioemu, d.guest_device_name) disk.append(dspec) if 'installer' in locals(): check(re.match('^[A-Za-z0-9][A-Za-z0-9_.-]*$', installer)) tmptree = tempfile.mkdtemp('', 'auto-install.', '/tmp') call(['/usr/sbin/sipb-xen-make-iso', installer, tmptree] + installer_options.split(' ')) disk.append('file:'+tmptree+'/install.iso,hdc:cdrom,r') boot = 'd' elif 'disks' in locals(): # for the copying installer's use disk = disks.split(' ') boot = 'c' 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' on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'destroy' if machine.autorestart: on_crash = 'restart'