1 | # -*- mode: python; -*- |
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2 | import sipb_xen_database.models as models |
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3 | from sipb_xen_database import connect |
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4 | import re |
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5 | |
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6 | connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen') |
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7 | prefix = "d_" |
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8 | |
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9 | # 'machine_name', and optionally 'cdrom_image', should get passed in |
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10 | # from the xm create call |
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11 | |
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12 | def check(b): |
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13 | if not b: |
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14 | import sys |
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15 | sys.exit(1) |
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16 | |
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17 | machine = models.Machine.get_by(name=machine_name) |
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18 | check(machine is not None) |
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19 | machine_type = models.Type.get_by(type_id=machine.type_id) |
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20 | |
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21 | memory = machine.memory |
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22 | maxmem = memory |
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23 | check(re.match('^[A-Za-z0-9][A-Za-z0-9._-]*$', machine.name)) |
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24 | name = prefix + machine.name |
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25 | check(re.match('^[0-9a-f-]+$', machine.uuid)) |
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26 | uuid = machine.uuid |
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27 | |
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28 | vcpus = machine.cpus |
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29 | |
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30 | diskioemu = "" |
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31 | viftype = "" |
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32 | |
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33 | if machine_type.hvm: |
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34 | ioemu = "ioemu:" |
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35 | viftype = "type=ioemu, " |
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36 | |
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37 | kernel = 'hvmloader' |
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38 | builder = 'hvm' |
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39 | vnc = 1 |
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40 | vncpasswd = 'moocow' |
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41 | device_model = '/usr/sbin/qemu-dm-sipb' |
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42 | else: |
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43 | kernel = '/boot/vmlinuz-2.6.18-4-xen-amd64' |
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44 | ramdisk = '/boot/initrd.img-2.6.18-4-xen-amd64' |
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45 | builder = 'linux' |
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46 | |
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47 | pae = machine_type.pae |
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48 | acpi = machine_type.acpi |
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49 | apic = machine_type.apic |
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50 | |
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51 | vif = [] |
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52 | |
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53 | for n in machine.nics: |
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54 | check(re.match('^[0-9a-fA-F:]+$', n.mac_addr) and re.match('^[0-9.]*$', n.ip)) |
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55 | d = '%smac=%s, ip=%s, bridge=xenbr0, script=vif-sipbroute' % (viftype, n.mac_addr, n.ip) |
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56 | vif.append(d) |
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57 | |
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58 | disk = [] |
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59 | |
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60 | for d in machine.disks: |
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61 | check(re.match('^[A-Za-z0-9]+$', d.guest_device_name)) |
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62 | device = '/dev/xenvg/' + prefix + machine.name + '_' + d.guest_device_name |
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63 | dspec = 'phy:%s,%s%s,w' % (device, diskioemu, d.guest_device_name) |
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64 | disk.append(dspec) |
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65 | |
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66 | if 'cdrom_image' in locals(): |
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67 | check(re.match('^[A-Za-z0-9][A-Za-z0-9_.-]*$', cdrom_image)) |
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68 | disk.append('file:/srv/images/' + cdrom_image + '.iso,hdc:cdrom,r') |
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69 | boot = 'd' |
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70 | |
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71 | on_poweroff = 'destroy' |
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72 | on_reboot = 'restart' |
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73 | on_crash = 'destroy' |
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74 | if machine.autorestart: |
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75 | on_crash = 'restart' |
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