xen-drbd

annotate xen-drbd-install.py @ 37:e80bdf496aa2

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1. --network (-n) option; topology name is not hardcoded since present
2. fix for incorrect processing of the paramater spicified in form like drbd8=sda1 in xen-drbd-install
author igor@manas.xt.vpn
date Mon Sep 15 10:03:24 2008 +0300 (2008-09-15)
parents 44efea4507ac
children 30671fe7fd79
rev   line source
igor@0 1 #!/usr/bin/python
igor@0 2
igor@37 3 import sys,re,getopt
igor@20 4 sys.path.append('/etc/xen')
igor@0 5
igor@10 6 def show_usage():
igor@10 7 print """
igor@10 8 Usage:
igor@37 9 xen-drbd-install [options] <command> (to view)
igor@37 10 xen-drbd-install [options] <command> | sh -s (to run)
igor@10 11
igor@30 12 <network> is the name of the file, which contains network description
igor@10 13
igor@10 14 Commands:
igor@10 15 make-drbd
igor@10 16 make-domains
igor@10 17 make-bridges
igor@10 18 make-links
igor@37 19
igor@37 20 Options:
igor@37 21 --help (-h) -- show usage information
igor@37 22 --network=name (-n) -- the network descriptions is in the file name.py (default: network.py)
igor@10 23 """
igor@10 24
igor@37 25
igor@37 26
igor@37 27 network='network'
igor@37 28 try:
igor@37 29 opts, args = getopt.getopt(sys.argv[1:], "hn:", ["help", "network="])
igor@37 30 except getopt.GetoptError, err:
igor@37 31 # print help information and exit:
igor@37 32 print str(err) # will print something like "option -a not recognized"
igor@37 33 usage()
igor@37 34 sys.exit(2)
igor@37 35
igor@37 36 for o, a in opts:
igor@37 37 if o in ("-h", "--help"):
igor@37 38 show_usage()
igor@37 39 sys.exit()
igor@37 40 elif o in ("-n", "--network"):
igor@37 41 network = a
igor@37 42 else:
igor@37 43 assert False, "unhandled option"
igor@37 44
igor@37 45 if len(args) != 1:
igor@10 46 show_usage()
igor@10 47 sys.exit(1)
igor@10 48
igor@0 49 try:
igor@9 50 exec 'from %s import * ' % (network)
igor@23 51 except ImportError:
igor@37 52 print "Can't find or interpret module <%s> with topology description" %(network)
igor@2 53 sys.exit(1)
igor@0 54
igor@37 55
igor@0 56 drbd_base_port=7790
igor@0 57 meta_disk='/dev/%s/meta'%lvm_vg_name
igor@2 58 drbd_device={}
igor@0 59
igor@33 60 linux_domains=[]
igor@33 61 for dom in domains:
igor@33 62 if domain_types[domains.index(dom)] == 'linux':
igor@33 63 linux_domains.append(dom)
igor@33 64
igor@2 65 def make_drbd_hash():
igor@2 66 for dom in domains:
igor@2 67 for disk in disk_table[dom]:
igor@2 68 if disk.find(":") == -1:
igor@36 69 if disk.find("=") == -1:
igor@36 70 drbd_device[disk]=dom
igor@36 71 else:
igor@36 72 drbd_device[disk.split('=')[0]]=dom
igor@2 73 else:
igor@36 74 disk0=disk.split(':')[0]
igor@36 75 drbd_device[disk0.split('=')[0]]=disk.split(':')[1]
igor@2 76
igor@2 77 def make_lvm():
igor@9 78 print "###################################################"
igor@9 79 print "# MAKE LVM FOR DOMAINS DRBD DEVICES"
igor@9 80 print "#"
igor@9 81 for lvm_pv_name in re.compile('\s+').split(lvm_pv_names):
igor@9 82 print "pvcreate %s" % (lvm_pv_name)
igor@9 83 print "vgcreate /dev/%s %s" % (lvm_vg_name, lvm_pv_names)
igor@9 84 print "lvcreate -L %s -n %s /dev/%s" % (lvm_lv_drbd_meta_size, lvm_lv_drbd_meta_name, lvm_vg_name)
igor@33 85 for dom in linux_domains:
igor@2 86 for disk in disk_table[dom]:
igor@2 87 if disk.find(":") == -1:
igor@2 88 #if do_print:
igor@2 89 # print "lvcreate -L %s -n %s /dev/%s" % (disk, dom, lvm_vg_name)
igor@2 90 #drbd_devices.append([dom, "/dev/%s/%s" % (lvm_vg_name, dom)])
igor@2 91 drbd_device[disk]=dom
igor@2 92 else:
igor@2 93 drbd_device[disk.split(':')[0]]=disk.split(':')[0]
igor@12 94 print "lvcreate -L %s -n %s /dev/%s" % (disk.split(':')[2], disk.split(':')[1], lvm_vg_name)
igor@9 95 #drbd_devices.append([disk.split(':')[0], "/dev/%s/%s" % (lvm_vg_name, disk.split(':')[0])])
igor@9 96 print ""
igor@0 97
igor@0 98
igor@0 99 def make_drbdconf():
igor@9 100 print "###################################################"
igor@9 101 print "# MAKE DRBD CONFIG FILE /etc/drbd.conf"
igor@9 102 print "#"
igor@9 103
igor@2 104 print "cat <<DRBD > /etc/drbd.conf"
igor@9 105
igor@9 106
igor@9 107 for dom in domains:
igor@9 108 for disk in disk_table[dom]:
igor@37 109 drbd_number=int(re.compile('drbd').sub('',(disk.split(':')[0]).split('=')[0] ))
igor@9 110 resource=disk.split(':')[1]
igor@9 111 disk="/dev/%s/%s" % (lvm_vg_name,resource)
igor@9 112
igor@9 113 print """
igor@0 114 resource %s {
igor@2 115 protocol C;
igor@2 116 net {
igor@2 117 allow-two-primaries;
igor@2 118 after-sb-0pri discard-least-changes;
igor@2 119 after-sb-1pri call-pri-lost-after-sb;
igor@2 120 after-sb-2pri call-pri-lost-after-sb;
igor@2 121 }
igor@2 122 syncer {
igor@2 123 rate 5M;
igor@2 124 }
igor@2 125 on %s
igor@2 126 {
igor@2 127 device /dev/drbd%s;
igor@2 128 disk %s;
igor@2 129 address %s:%s;
igor@2 130 meta-disk %s[%s];
igor@2 131 }
igor@2 132 on %s
igor@2 133 {
igor@2 134 device /dev/drbd%s;
igor@2 135 disk %s;
igor@2 136 address %s:%s;
igor@2 137 meta-disk %s[%s];
igor@2 138 }
igor@0 139 }
igor@0 140
igor@9 141 """ % (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 )
igor@9 142 print "DRBD"
igor@9 143 print ""
igor@9 144
igor@9 145
igor@9 146 def make_drbdmeta():
igor@9 147 print "###################################################"
igor@9 148 print "# MAKE DRBD DEVICES "
igor@9 149 print "#"
igor@13 150 print "yes yes | drbdadm create-md all"
igor@9 151
igor@9 152 def make_drbdprimary():
igor@9 153 print "###################################################"
igor@9 154 print "# SET DRBD DEVICES PRIMARY "
igor@9 155 print "#"
igor@9 156
igor@9 157 print "drbdadm up all"
igor@9 158 for dom in domains:
igor@9 159 for disk in disk_table[dom]:
igor@9 160 print "drbdsetup %s primary -o" % disk.split(':')[0]
igor@0 161
igor@0 162
igor@2 163 def make_links():
igor@2 164
igor@9 165 print "###################################################"
igor@9 166 print "# MAKE SYMBOLIC LINKS TO /dev/drbd* FILES"
igor@9 167 print "#"
igor@2 168
igor@2 169 # drbd_devices={
igor@2 170 # 'dev' : 'resource',
igor@2 171 # }
igor@2 172
igor@2 173 make_drbd_hash()
igor@2 174 print "mkdir -p /dev/drbd"
igor@2 175 for dev in drbd_device.keys():
igor@2 176 resource=drbd_device[dev]
igor@2 177 print "ln -sf /dev/%s /dev/drbd/%s" %(dev, resource)
igor@0 178
igor@0 179 def make_fs():
igor@9 180
igor@9 181 print "###################################################"
igor@9 182 print "# MAKE FILESYSTEMS ON THE DRBDs"
igor@9 183 print "#"
igor@9 184
igor@9 185 for dev in drbd_device.keys():
igor@9 186 print "mkfs.ext3 %s /dev/%s" %(mkfs_options,dev)
igor@0 187
igor@0 188
igor@0 189 def make_mount():
igor@9 190 print "###################################################"
igor@9 191 print "# MOUNT U-DOMAINS FILESYSTEMS"
igor@9 192 print "#"
igor@9 193
igor@2 194 print "mkdir -p /domU"
igor@33 195 for dom in linux_domains:
igor@2 196 print "mkdir -p /domU/%s" % (dom)
igor@2 197 print "mount /dev/drbd/%s /domU/%s" % (dom,dom)
igor@0 198
igor@0 199 def make_umount():
igor@33 200 for dom in linux_domains:
igor@2 201 print "umount /domU/%s" % (dom)
igor@0 202
igor@0 203 def make_dns():
igor@2 204 i=1
igor@33 205 for dom in linux_domains:
igor@2 206 print "%s A %s.%s" % (dom, ip_network, i)
igor@2 207 i+=1
igor@0 208
igor@0 209 def make_dns_reverse():
igor@2 210 i=1
igor@33 211 for dom in linux_domains:
igor@2 212 print "%s A %s.%s." % (i, dom, domain_name)
igor@2 213 i+=1
igor@0 214
igor@0 215 def make_install_debian():
igor@2 216 print """
igor@17 217 apt-get install debootstrap
igor@0 218 debootstrap %s /domU/%s %s
igor@0 219 chroot /domU/%s apt-get install -y --force-yes %s
igor@2 220 """ % (debian_release,domains[0],debian_mirror,domains[0],apt_get_install)
igor@0 221
igor@0 222 def make_rsync():
igor@2 223 for dom in domains[1:]:
igor@2 224 print """
igor@0 225 rsync -a /domU/%s/ /domU/%s/
igor@2 226 """ % (domains[0], dom)
igor@0 227
igor@0 228 def make_etcfstab():
igor@2 229 i=0
igor@33 230 for dom in linux_domains:
igor@2 231 i+=1
igor@2 232 print """
igor@0 233 cat <<FSTAB > /domU/%s/etc/fstab
igor@0 234 proc /proc proc defaults 0 0
igor@0 235 /dev/hda1 / ext3 defaults,errors=remount-ro 0 1
igor@0 236 FSTAB
igor@2 237 """ % (dom)
igor@0 238
igor@0 239 def make_etcnetworkinterfaces():
igor@2 240 i=0
igor@33 241 for dom in linux_domains:
igor@2 242 i+=1
igor@2 243 print """
igor@0 244 cat <<INTERFACES > /domU/%s/etc/network/interfaces
igor@0 245 auto lo eth0
igor@0 246 iface lo inet loopback
igor@0 247
igor@0 248 iface eth0 inet static
igor@9 249 address %s
igor@0 250 netmask 255.255.255.0
igor@0 251 network %s.0
igor@0 252 broadcast %s.255
igor@0 253 gateway %s
igor@0 254 dns-nameservers %s
igor@0 255 dns-search %s
igor@0 256 INTERFACES
igor@9 257 """ % (dom,ip_address_table[dom],ip_network, ip_network, ip_gateway, domain_name, ip_nameserver)
igor@0 258
igor@0 259 def make_etcresolvconf():
igor@33 260 for dom in linux_domains:
igor@2 261 print """
igor@0 262 cat <<RESOLVCONF > /domU/%s/etc/resolv.conf
igor@0 263 search %s
igor@0 264 nameserver %s
igor@0 265 RESOLVCONF
igor@2 266 """ % (dom,domain_name,ip_nameserver)
igor@0 267
igor@0 268 def make_etchostname():
igor@33 269 for dom in linux_domains:
igor@2 270 print """
igor@0 271 cat <<HOSTNAME > /domU/%s/etc/hostname
igor@0 272 %s
igor@0 273 HOSTNAME
igor@2 274 """ % (dom,dom)
igor@0 275
igor@0 276
igor@0 277 def make_etchosts():
igor@2 278 i=0
igor@33 279 for dom in linux_domains:
igor@2 280 i+=1
igor@2 281 print """
igor@0 282 cat <<HOSTS > /domU/%s/etc/hosts
igor@0 283 127.0.0.1 localhost
igor@9 284 %s %s.%s %s
igor@0 285
igor@0 286 ::1 ip6-localhost ip6-loopback
igor@0 287 fe00::0 ip6-localnet
igor@0 288 ff00::0 ip6-mcastprefix
igor@0 289 ff02::1 ip6-allnodes
igor@0 290 ff02::2 ip6-allrouters
igor@0 291 ff02::3 ip6-allhosts
igor@0 292 HOSTS
igor@9 293 """ % (dom,ip_address_table[dom],dom,domain_name,dom)
igor@0 294
igor@0 295 def make_rootssh():
igor@33 296 for dom in linux_domains:
igor@2 297 print """
igor@14 298 mkdir -p /domU/%s/home/eb/.ssh/
igor@14 299 chown -R 1000:1000 /domU/%s/home/eb
igor@0 300 cp ~/.ssh/id_dsa.pub /domU/%s/root/.ssh/authorized_keys
igor@14 301 chmod 600 /domU/%s/home/eb/.ssh/authorized_keys
igor@16 302 """ % (dom,dom,dom,dom)
igor@0 303
igor@0 304 def make_l3rc():
igor@33 305 for dom in linux_domains:
igor@2 306 print """
igor@2 307 cat <<EOF > /domU/%s/root/.l3rc
igor@0 308 l3cd=/users/igor/xen-drbd-dom0-setup/%s.%s/root
igor@0 309 EOF
igor@2 310 """ % (dom,dom,domain_name)
igor@0 311
igor@0 312
igor@0 313 def make_etc():
igor@2 314 make_etcfstab()
igor@2 315 make_etcnetworkinterfaces()
igor@2 316 make_etcresolvconf()
igor@2 317 make_etchosts()
igor@2 318 make_etchostname()
igor@2 319 make_rootssh()
igor@15 320 #make_l3rc()
igor@0 321
igor@9 322 def make_drbd():
igor@9 323 make_lvm()
igor@9 324 make_drbdconf()
igor@9 325 make_drbdmeta()
igor@9 326
igor@9 327 def make_domains():
igor@9 328 make_drbdprimary()
igor@9 329 make_links()
igor@2 330 make_fs()
igor@2 331 make_mount()
igor@2 332 make_install_debian()
igor@2 333 make_rsync()
igor@2 334 make_etc()
igor@2 335 make_umount()
igor@0 336
igor@0 337 def get_management_ip():
igor@2 338 return management_ip
igor@0 339
igor@0 340 def get_default_gateway():
igor@2 341 return management_gw
igor@0 342
igor@0 343 def make_bridges():
igor@2 344 ip=get_management_ip()
igor@2 345 gw=get_default_gateway()
igor@21 346 print "ifconfig %s 0.0.0.0 down" % (trunk)
igor@2 347
igor@2 348 # tagged interfaces
igor@2 349 for bridge in bridges:
igor@2 350 vlan=vlans[bridges.index(bridge)]
igor@2 351 if vlan == 'tagged':
igor@2 352 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s" % (bridges.index(bridge)+2,bridge,trunk)
igor@2 353 print "ip link set %s up" % (trunk)
igor@2 354
igor@2 355 # untagged interfaces
igor@2 356 for bridge in bridges:
igor@2 357 vlan=vlans[bridges.index(bridge)]
igor@2 358 if vlan != 'tagged':
igor@2 359 print "vconfig add %s %s" % (trunk,vlan)
igor@2 360 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s.%s" % (bridges.index(bridge)+2,bridge,trunk,vlan)
igor@2 361 print "ip link set %s.%s up" % (trunk,vlan)
igor@2 362
igor@22 363 print "ifconfig %s.%s %s netmask %s" % (trunk,management_vlan,management_ip,management_netmask)
igor@2 364 if management_gw:
igor@2 365 print "route add default gw %s" % (management_gw)
igor@0 366
igor@0 367
igor@0 368
igor@0 369 #make_all_system()
igor@0 370
igor@37 371 if len(args) > 0:
igor@37 372 command = args[0]
igor@9 373 if command == 'make-drbd':
igor@9 374 make_drbd()
igor@9 375 elif command == 'make-domains':
igor@9 376 make_domains()
igor@9 377 elif command == 'make-bridges':
igor@2 378 make_bridges()
igor@2 379 elif command == 'make-links':
igor@2 380 make_links()
igor@2 381 else:
igor@2 382 show_usage()
igor@0 383 else:
igor@2 384 show_usage()
igor@0 385