1 #!/usr/bin/python

2

3

4 # External variables:

5 # * network

6 # * domain

7

8 import sys

9

10 #sys.path.append('/etc/xen')

11

12 try:

13 execfile('/etc/xen/'+network)

14 except:

15 print "Can't find or interpret module %s with topology description" %(network)

16 sys.exit(1)

17

18 name=domain

19 N = domains.index(domain)

20

21 if domain_types[N] == 'hvm':

22 kernel='hvmloader'

23 builder='hvm'

24 device_model='qemu-dm'

25 boot='c'

26 sdl=0

27 vnc=1

28 stdvga=0

29 serial='pty'

30 localtime=0

31 else:

32 root="/dev/hda1 ro"

33 extra=""

34

35 try:

36 execfile('/etc/xen/'+network)

37 except:

38 print "Can't find or interpret module %s with topology description" %(network)

39 sys.exit(1)

40

41 try:

42 hvmloader

43 except:

44 hvmloader='hvmloader'

45

46 if domain_types[N] == 'hvm':

47 kernel=hvmloader

48 builder='hvm'

49 try:

50 del extra

51 except:

52 pass

53 try:

54 del root

55 except:

56 pass

57 try:

58 del ramdisk

59 except:

60 pass

61

62 try:

63 memory=mem_table[domain]

64 except:

65 pass

66

67 try:

68 vcpus=vcpus_table[domain]

69 except:

70 pass

71

72 disk=[]

73 if domain_types[N] == 'hvm':

74 letters='abcdefghijklmnopqrstuvwxyz'

75 i=0

76 for disk_description in disk_table[domain]:

77 i+=1

78 if disk_description.find(":") == -1:

79 disk_name=disk_description

80 if disk_name.find("=") == -1:

81 disk.append('phy:/dev/drbd/%s,hd%s,w' % (domain,letters[i-1]) )

82 else:

83 disk.append('phy:/dev/drbd/%s,%s,w' % (domain,(disk_name.split("="))[1]) )

84 else:

85 disk_name=(disk_description.split(':'))[0]

86 if disk_name.find("=") == -1:

87 disk.append('phy:/dev/drbd/%s,hd%s,w' % ((disk_description.split(':'))[1],letters[i-1]) )

88 else:

89 disk.append('phy:/dev/drbd/%s,%s,w' % ((disk_description.split(':'))[1],(disk_name.split("="))[1]) )

90

91 else:

92 i=0

93 for disk_description in disk_table[domain]:

94 i+=1

95 if disk_description.find(":") == -1:

96 disk_name=disk_description

97 if disk_name.find("=") == -1:

98 disk.append('phy:/dev/drbd/%s,hda%s,w' % (domain,i) )

99 else:

100 disk.append('phy:/dev/drbd/%s,%s,w' % (domain,(disk_name.split("="))[1]) )

101 else:

102 disk_name=(disk_description.split(':'))[0]

103 if disk_name.find("=") == -1:

104 disk.append('phy:/dev/drbd/%s,hda%s,w' % ((disk_description.split(':'))[1],i) )

105 else:

106 disk.append('phy:/dev/drbd/%s,%s,w' % ((disk_description.split(':'))[1],(disk_name.split("="))[1]) )

107

108 vif=[]

109 vbridges = vbridges_table[domain]

110 x=1

111 for i in vbridges:

112 if domain_types[N] == 'hvm':

113 vif.append('type=ioemu, bridge='+i+',mac=00:16:3e:01:'+hex(int(N))[2:]+':'+hex(int('c0',16)+x)[2:])

114 else:

115 vif.append('bridge='+i+',mac=00:16:3e:01:'+hex(int(N))[2:]+':'+hex(int('c0',16)+x)[2:])

116 x+=1

117

118

119

120 def print_config():

121 if domain_types[N] == 'hvm':

122 print "name = \"%s\""% name

123 print "kernel = \"%s\""% kernel

124 print "builder = \"%s\""% builder

125 print "memory = %s"% memory

126 print "device_model=\"%s\"" % device_model

127 print "vcpus = %s"% vcpus

128 print "disk =", disk

129 print "vif =", vif

130 print "boot=\"%s\""%boot

131 print "sdl=%s"%sdl

132 print "vnc=%s"%vnc

133 print "localtime=%s"%localtime

134 print "stdvga=%s"%stdvga

135 print "serial=\"%s\""%serial

136 else:

137 print "name = \"%s\""% name

138 try:

139 print "kernel = \"%s\""% kernel

140 except:

141 pass

142 try:

143 print "ramdisk = \"%s\""% ramdisk

144 except:

145 pass

146 print "memory = %s"% memory

147 print "vcpus = %s"% vcpus

148 print "disk =", disk

149 print "vif =", vif

150 print "root = \"%s\""% root

151 print "extra = \"%s\""% extra

152 try:

153 print "bootloader = \"%s\""% bootloader

154 except:

155 pass

156

157 # else:

158

159 try:

160 del domain, N, x, i, node1, node2, ip_address, node1_ip, node2_ip, domains, domain_types, domain_home, mem_table, vcpus_table, disk_table, lvm_pv, lvm_vg_name, bridges, vlans, management_interface, trunk, vbridges_table, domain_name

161 except:

162 pass