xen-drbd: b8f58a090b2f xen-drbd-install.py

xen-drbd

view xen-drbd-install.py @ 57:b8f58a090b2f

additional_debian_releases

author	Igor Chubin <igor@chub.in>
date	Tue Oct 14 10:06:50 2008 +0300 (2008-10-14)
parents	14e75a085db0
children	ae3cd87f8837

line source

1 #!/usr/bin/python

3 import sys,re,getopt

4 sys.path.append('/etc/xen')

6 def show_usage():

7 print """

8 Usage:

9 xen-drbd-install [options] <command> (to view)

10 xen-drbd-install [options] <command> | sh -s (to run)

12 <network> is the name of the file, which contains network description

14 Commands:

15 make-drbd

16 make-domains

17 make-bridges

18 make-links

20 Options:

21 --help (-h) -- show usage information

22 --network=name (-n) -- the network descriptions is in the file name (default: network)

23 """

27 network='network'

28 try:

29 opts, args = getopt.getopt(sys.argv[1:], "hn:", ["help", "network="])

30 except getopt.GetoptError, err:

31 print str(err)

32 usage()

33 sys.exit(2)

35 for o, a in opts:

36 if o in ("-h", "--help"):

37 show_usage()

38 sys.exit()

39 elif o in ("-n", "--network"):

40 network = a

41 else:

42 assert False, "unhandled option"

44 if len(args) != 1:

45 show_usage()

46 sys.exit(1)

48 try:

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

50 except IOError:

51 print "Network configuration file <%s> not found " % network

52 if network == 'network':

53 print "You can use -n option to specify network filename"

54 sys.exit(2)

55 except NameError:

56 domain=domains[0]

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

60 drbd_base_port=7790

61 meta_disk='/dev/%s/meta'%lvm_vg_name

62 drbd_device={}

64 linux_domains=[]

65 for dom in domains:

66 if domain_types[domains.index(dom)] == 'linux':

67 linux_domains.append(dom)

69 def make_drbd_hash():

70 for dom in domains:

71 for disk in disk_table[dom]:

72 if disk.find(":") == -1:

73 if disk.find("=") == -1:

74 drbd_device[disk]=dom

75 else:

76 drbd_device[disk.split('=')[0]]=dom

77 else:

78 disk0=disk.split(':')[0]

79 drbd_device[disk0.split('=')[0]]=disk.split(':')[1]

81 def make_lvm():

82 print "###################################################"

83 print "# MAKE LVM FOR DOMAINS DRBD DEVICES"

84 print "#"

85 for lvm_pv_name in re.compile('\s+').split(lvm_pv_names):

86 print "pvcreate %s" % (lvm_pv_name)

87 print "vgcreate /dev/%s %s" % (lvm_vg_name, lvm_pv_names)

88 print "lvcreate -L %s -n %s /dev/%s" % (lvm_lv_drbd_meta_size, lvm_lv_drbd_meta_name, lvm_vg_name)

89 for dom in linux_domains:

90 for disk in disk_table[dom]:

91 if disk.find(":") == -1:

92 #if do_print:

93 # print "lvcreate -L %s -n %s /dev/%s" % (disk, dom, lvm_vg_name)

94 #drbd_devices.append([dom, "/dev/%s/%s" % (lvm_vg_name, dom)])

95 drbd_device[disk]=dom

96 else:

97 drbd_device[disk.split(':')[0]]=disk.split(':')[0]

98 print "lvcreate -L %s -n %s /dev/%s" % (disk.split(':')[2], disk.split(':')[1], lvm_vg_name)

99 #drbd_devices.append([disk.split(':')[0], "/dev/%s/%s" % (lvm_vg_name, disk.split(':')[0])])

100 print ""

101

102

103 def make_drbdconf():

104 print "###################################################"

105 print "# MAKE DRBD CONFIG FILE /etc/drbd.conf"

106 print "#"

107

108 print "cat <<DRBD > /etc/drbd.conf"

109

110

111 for dom in domains:

112 for disk in disk_table[dom]:

113 drbd_number=int(re.compile('drbd').sub('',(disk.split(':')[0]).split('=')[0] ))

114 resource=disk.split(':')[1]

115 disk="/dev/%s/%s" % (lvm_vg_name,resource)

116

117 print """

118 resource %s {

119 protocol C;

120 net {

121 allow-two-primaries;

122 after-sb-0pri discard-least-changes;

123 after-sb-1pri call-pri-lost-after-sb;

124 after-sb-2pri call-pri-lost-after-sb;

125 }

126 syncer {

127 rate 5M;

128 }

129 on %s

130 {

131 device /dev/drbd%s;

132 disk %s;

133 address %s:%s;

134 meta-disk %s[%s];

135 }

136 on %s

137 {

138 device /dev/drbd%s;

139 disk %s;

140 address %s:%s;

141 meta-disk %s[%s];

142 }

143 }

144

145 """ % (resource, node1, drbd_number, disk, node1_ip, drbd_number+drbd_base_port, meta_disk, drbd_number, node2, drbd_number, disk, node2_ip, drbd_number+drbd_base_port, meta_disk, drbd_number )

146 print "DRBD"

147 print ""

148

149

150 def make_drbdmeta():

151 print "###################################################"

152 print "# MAKE DRBD DEVICES "

153 print "#"

154 print "yes yes | drbdadm create-md all"

155

156 def make_drbdprimary():

157 print "###################################################"

158 print "# SET DRBD DEVICES PRIMARY "

159 print "#"

160

161 print "drbdadm up all"

162 for dom in domains:

163 for disk in disk_table[dom]:

164 print "drbdsetup /dev/%s primary -o" % disk.split(':')[0]

165

166

167 def make_links():

168

169 print "###################################################"

170 print "# MAKE SYMBOLIC LINKS TO /dev/drbd* FILES"

171 print "#"

172

173 # drbd_devices={

174 # 'dev' : 'resource',

175 # }

176

177 make_drbd_hash()

178 print "mkdir -p /dev/drbd"

179 for dev in drbd_device.keys():

180 resource=drbd_device[dev]

181 print "ln -sf /dev/%s /dev/drbd/%s" %(dev, resource)

182

183 def make_fs():

184

185 print "###################################################"

186 print "# MAKE FILESYSTEMS ON THE DRBDs"

187 print "#"

188

189 for dev in drbd_device.keys():

190 print "mkfs.ext3 %s /dev/%s" %(mkfs_options,dev)

191

192

193 def make_mount():

194 print "###################################################"

195 print "# MOUNT U-DOMAINS FILESYSTEMS"

196 print "#"

197

198 print "mkdir -p /domU"

199 for dom in linux_domains:

200 print "mkdir -p /domU/%s" % (dom)

201 print "mount /dev/drbd/%s /domU/%s" % (dom,dom)

202

203 def make_umount():

204 for dom in linux_domains:

205 print "umount /domU/%s" % (dom)

206

207 def make_dns():

208 i=1

209 for dom in linux_domains:

210 print "%s A %s.%s" % (dom, ip_network, i)

211 i+=1

212

213 def make_dns_reverse():

214 i=1

215 for dom in linux_domains:

216 print "%s A %s.%s." % (i, dom, domain_name)

217 i+=1

218

219 def make_install_debian():

220 print """

221 apt-get install debootstrap lsof

222 debootstrap %s /domU/%s %s

223 for i in %s

224 do

225 echo deb %s $i main contrib non-free >> /domU/%s/etc/apt/sources.list

226 done

227 LANG=C chroot apt-get update

228 LANG=C chroot /domU/%s apt-get install -y --force-yes %s

229 kill $(lsof +D /domU/%s | grep -v PID | awk '{print $2}' | sort -u) 2> /dev/null

230 sleep 2

231 kill -9 $(lsof +D /domU/%s | grep -v PID | awk '{print $2}' | sort -u) 2> /dev/null

232 """ % (debian_release,linux_domains[0],debian_mirror,debian_additional_releases,debian_mirror,linux_domains[0],linux_domains[0],apt_get_install,linux_domains[0],linux_domains[0])

233

234 def make_rsync():

235 for dom in linux_domains[1:]:

236 print """

237 echo -n Doing rsync for %s...

238 rsync -a /domU/%s/ /domU/%s/ && echo Done

239 """ % (dom, linux_domains[0], dom)

240

241

242 def make_install_packages():

243 for dom in linux_domains:

244 try: