xen-drbd

annotate xen-drbd-install.py @ 36:44efea4507ac

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Virtual disk name can be secified after = sign (e.g.: drbd1=sda1:dns:2G )
author igor@manas.xt.vpn
date Sat Aug 30 11:14:50 2008 +0300 (2008-08-30)
parents 85165c844ac9
children e80bdf496aa2
rev   line source
igor@0 1 #!/usr/bin/python
igor@0 2
igor@9 3 import sys,re
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@10 9 xen-drbd-install <network> <command> (to view)
igor@10 10 xen-drbd-install <network> <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@10 19 """
igor@10 20
igor@11 21 if len(sys.argv) != 3:
igor@10 22 show_usage()
igor@10 23 sys.exit(1)
igor@10 24
igor@10 25
igor@0 26 network=sys.argv[1]
igor@0 27 try:
igor@9 28 exec 'from %s import * ' % (network)
igor@23 29 except ImportError:
igor@2 30 print "Can't find or interpret module %s with topology description" %(network)
igor@2 31 sys.exit(1)
igor@0 32
igor@0 33 drbd_base_port=7790
igor@0 34 meta_disk='/dev/%s/meta'%lvm_vg_name
igor@2 35 drbd_device={}
igor@0 36
igor@33 37 linux_domains=[]
igor@33 38 for dom in domains:
igor@33 39 if domain_types[domains.index(dom)] == 'linux':
igor@33 40 linux_domains.append(dom)
igor@33 41
igor@2 42 def make_drbd_hash():
igor@2 43 for dom in domains:
igor@2 44 for disk in disk_table[dom]:
igor@2 45 if disk.find(":") == -1:
igor@36 46 if disk.find("=") == -1:
igor@36 47 drbd_device[disk]=dom
igor@36 48 else:
igor@36 49 drbd_device[disk.split('=')[0]]=dom
igor@2 50 else:
igor@36 51 disk0=disk.split(':')[0]
igor@36 52 drbd_device[disk0.split('=')[0]]=disk.split(':')[1]
igor@2 53
igor@2 54 def make_lvm():
igor@9 55 print "###################################################"
igor@9 56 print "# MAKE LVM FOR DOMAINS DRBD DEVICES"
igor@9 57 print "#"
igor@9 58 for lvm_pv_name in re.compile('\s+').split(lvm_pv_names):
igor@9 59 print "pvcreate %s" % (lvm_pv_name)
igor@9 60 print "vgcreate /dev/%s %s" % (lvm_vg_name, lvm_pv_names)
igor@9 61 print "lvcreate -L %s -n %s /dev/%s" % (lvm_lv_drbd_meta_size, lvm_lv_drbd_meta_name, lvm_vg_name)
igor@33 62 for dom in linux_domains:
igor@2 63 for disk in disk_table[dom]:
igor@2 64 if disk.find(":") == -1:
igor@2 65 #if do_print:
igor@2 66 # print "lvcreate -L %s -n %s /dev/%s" % (disk, dom, lvm_vg_name)
igor@2 67 #drbd_devices.append([dom, "/dev/%s/%s" % (lvm_vg_name, dom)])
igor@2 68 drbd_device[disk]=dom
igor@2 69 else:
igor@2 70 drbd_device[disk.split(':')[0]]=disk.split(':')[0]
igor@12 71 print "lvcreate -L %s -n %s /dev/%s" % (disk.split(':')[2], disk.split(':')[1], lvm_vg_name)
igor@9 72 #drbd_devices.append([disk.split(':')[0], "/dev/%s/%s" % (lvm_vg_name, disk.split(':')[0])])
igor@9 73 print ""
igor@0 74
igor@0 75
igor@0 76 def make_drbdconf():
igor@9 77 print "###################################################"
igor@9 78 print "# MAKE DRBD CONFIG FILE /etc/drbd.conf"
igor@9 79 print "#"
igor@9 80
igor@2 81 print "cat <<DRBD > /etc/drbd.conf"
igor@9 82
igor@9 83
igor@9 84 for dom in domains:
igor@9 85 for disk in disk_table[dom]:
igor@9 86 drbd_number=int(re.compile('drbd').sub('',disk.split(':')[0]))
igor@9 87 resource=disk.split(':')[1]
igor@9 88 disk="/dev/%s/%s" % (lvm_vg_name,resource)
igor@9 89
igor@9 90 print """
igor@0 91 resource %s {
igor@2 92 protocol C;
igor@2 93 net {
igor@2 94 allow-two-primaries;
igor@2 95 after-sb-0pri discard-least-changes;
igor@2 96 after-sb-1pri call-pri-lost-after-sb;
igor@2 97 after-sb-2pri call-pri-lost-after-sb;
igor@2 98 }
igor@2 99 syncer {
igor@2 100 rate 5M;
igor@2 101 }
igor@2 102 on %s
igor@2 103 {
igor@2 104 device /dev/drbd%s;
igor@2 105 disk %s;
igor@2 106 address %s:%s;
igor@2 107 meta-disk %s[%s];
igor@2 108 }
igor@2 109 on %s
igor@2 110 {
igor@2 111 device /dev/drbd%s;
igor@2 112 disk %s;
igor@2 113 address %s:%s;
igor@2 114 meta-disk %s[%s];
igor@2 115 }
igor@0 116 }
igor@0 117
igor@9 118 """ % (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@9 119 print "DRBD"
igor@9 120 print ""
igor@9 121
igor@9 122
igor@9 123 def make_drbdmeta():
igor@9 124 print "###################################################"
igor@9 125 print "# MAKE DRBD DEVICES "
igor@9 126 print "#"
igor@13 127 print "yes yes | drbdadm create-md all"
igor@9 128
igor@9 129 def make_drbdprimary():
igor@9 130 print "###################################################"
igor@9 131 print "# SET DRBD DEVICES PRIMARY "
igor@9 132 print "#"
igor@9 133
igor@9 134 print "drbdadm up all"
igor@9 135 for dom in domains:
igor@9 136 for disk in disk_table[dom]:
igor@9 137 print "drbdsetup %s primary -o" % disk.split(':')[0]
igor@0 138
igor@0 139
igor@2 140 def make_links():
igor@2 141
igor@9 142 print "###################################################"
igor@9 143 print "# MAKE SYMBOLIC LINKS TO /dev/drbd* FILES"
igor@9 144 print "#"
igor@2 145
igor@2 146 # drbd_devices={
igor@2 147 # 'dev' : 'resource',
igor@2 148 # }
igor@2 149
igor@2 150 make_drbd_hash()
igor@2 151 print "mkdir -p /dev/drbd"
igor@2 152 for dev in drbd_device.keys():
igor@2 153 resource=drbd_device[dev]
igor@2 154 print "ln -sf /dev/%s /dev/drbd/%s" %(dev, resource)
igor@0 155
igor@0 156 def make_fs():
igor@9 157
igor@9 158 print "###################################################"
igor@9 159 print "# MAKE FILESYSTEMS ON THE DRBDs"
igor@9 160 print "#"
igor@9 161
igor@9 162 for dev in drbd_device.keys():
igor@9 163 print "mkfs.ext3 %s /dev/%s" %(mkfs_options,dev)
igor@0 164
igor@0 165
igor@0 166 def make_mount():
igor@9 167 print "###################################################"
igor@9 168 print "# MOUNT U-DOMAINS FILESYSTEMS"
igor@9 169 print "#"
igor@9 170
igor@2 171 print "mkdir -p /domU"
igor@33 172 for dom in linux_domains:
igor@2 173 print "mkdir -p /domU/%s" % (dom)
igor@2 174 print "mount /dev/drbd/%s /domU/%s" % (dom,dom)
igor@0 175
igor@0 176 def make_umount():
igor@33 177 for dom in linux_domains:
igor@2 178 print "umount /domU/%s" % (dom)
igor@0 179
igor@0 180 def make_dns():
igor@2 181 i=1
igor@33 182 for dom in linux_domains:
igor@2 183 print "%s A %s.%s" % (dom, ip_network, i)
igor@2 184 i+=1
igor@0 185
igor@0 186 def make_dns_reverse():
igor@2 187 i=1
igor@33 188 for dom in linux_domains:
igor@2 189 print "%s A %s.%s." % (i, dom, domain_name)
igor@2 190 i+=1
igor@0 191
igor@0 192 def make_install_debian():
igor@2 193 print """
igor@17 194 apt-get install debootstrap
igor@0 195 debootstrap %s /domU/%s %s
igor@0 196 chroot /domU/%s apt-get install -y --force-yes %s
igor@2 197 """ % (debian_release,domains[0],debian_mirror,domains[0],apt_get_install)
igor@0 198
igor@0 199 def make_rsync():
igor@2 200 for dom in domains[1:]:
igor@2 201 print """
igor@0 202 rsync -a /domU/%s/ /domU/%s/
igor@2 203 """ % (domains[0], dom)
igor@0 204
igor@0 205 def make_etcfstab():
igor@2 206 i=0
igor@33 207 for dom in linux_domains:
igor@2 208 i+=1
igor@2 209 print """
igor@0 210 cat <<FSTAB > /domU/%s/etc/fstab
igor@0 211 proc /proc proc defaults 0 0
igor@0 212 /dev/hda1 / ext3 defaults,errors=remount-ro 0 1
igor@0 213 FSTAB
igor@2 214 """ % (dom)
igor@0 215
igor@0 216 def make_etcnetworkinterfaces():
igor@2 217 i=0
igor@33 218 for dom in linux_domains:
igor@2 219 i+=1
igor@2 220 print """
igor@0 221 cat <<INTERFACES > /domU/%s/etc/network/interfaces
igor@0 222 auto lo eth0
igor@0 223 iface lo inet loopback
igor@0 224
igor@0 225 iface eth0 inet static
igor@9 226 address %s
igor@0 227 netmask 255.255.255.0
igor@0 228 network %s.0
igor@0 229 broadcast %s.255
igor@0 230 gateway %s
igor@0 231 dns-nameservers %s
igor@0 232 dns-search %s
igor@0 233 INTERFACES
igor@9 234 """ % (dom,ip_address_table[dom],ip_network, ip_network, ip_gateway, domain_name, ip_nameserver)
igor@0 235
igor@0 236 def make_etcresolvconf():
igor@33 237 for dom in linux_domains:
igor@2 238 print """
igor@0 239 cat <<RESOLVCONF > /domU/%s/etc/resolv.conf
igor@0 240 search %s
igor@0 241 nameserver %s
igor@0 242 RESOLVCONF
igor@2 243 """ % (dom,domain_name,ip_nameserver)
igor@0 244
igor@0 245 def make_etchostname():
igor@33 246 for dom in linux_domains:
igor@2 247 print """
igor@0 248 cat <<HOSTNAME > /domU/%s/etc/hostname
igor@0 249 %s
igor@0 250 HOSTNAME
igor@2 251 """ % (dom,dom)
igor@0 252
igor@0 253
igor@0 254 def make_etchosts():
igor@2 255 i=0
igor@33 256 for dom in linux_domains:
igor@2 257 i+=1
igor@2 258 print """
igor@0 259 cat <<HOSTS > /domU/%s/etc/hosts
igor@0 260 127.0.0.1 localhost
igor@9 261 %s %s.%s %s
igor@0 262
igor@0 263 ::1 ip6-localhost ip6-loopback
igor@0 264 fe00::0 ip6-localnet
igor@0 265 ff00::0 ip6-mcastprefix
igor@0 266 ff02::1 ip6-allnodes
igor@0 267 ff02::2 ip6-allrouters
igor@0 268 ff02::3 ip6-allhosts
igor@0 269 HOSTS
igor@9 270 """ % (dom,ip_address_table[dom],dom,domain_name,dom)
igor@0 271
igor@0 272 def make_rootssh():
igor@33 273 for dom in linux_domains:
igor@2 274 print """
igor@14 275 mkdir -p /domU/%s/home/eb/.ssh/
igor@14 276 chown -R 1000:1000 /domU/%s/home/eb
igor@0 277 cp ~/.ssh/id_dsa.pub /domU/%s/root/.ssh/authorized_keys
igor@14 278 chmod 600 /domU/%s/home/eb/.ssh/authorized_keys
igor@16 279 """ % (dom,dom,dom,dom)
igor@0 280
igor@0 281 def make_l3rc():
igor@33 282 for dom in linux_domains:
igor@2 283 print """
igor@2 284 cat <<EOF > /domU/%s/root/.l3rc
igor@0 285 l3cd=/users/igor/xen-drbd-dom0-setup/%s.%s/root
igor@0 286 EOF
igor@2 287 """ % (dom,dom,domain_name)
igor@0 288
igor@0 289
igor@0 290 def make_etc():
igor@2 291 make_etcfstab()
igor@2 292 make_etcnetworkinterfaces()
igor@2 293 make_etcresolvconf()
igor@2 294 make_etchosts()
igor@2 295 make_etchostname()
igor@2 296 make_rootssh()
igor@15 297 #make_l3rc()
igor@0 298
igor@9 299 def make_drbd():
igor@9 300 make_lvm()
igor@9 301 make_drbdconf()
igor@9 302 make_drbdmeta()
igor@9 303
igor@9 304 def make_domains():
igor@9 305 make_drbdprimary()
igor@9 306 make_links()
igor@2 307 make_fs()
igor@2 308 make_mount()
igor@2 309 make_install_debian()
igor@2 310 make_rsync()
igor@2 311 make_etc()
igor@2 312 make_umount()
igor@0 313
igor@0 314 def get_management_ip():
igor@2 315 return management_ip
igor@0 316
igor@0 317 def get_default_gateway():
igor@2 318 return management_gw
igor@0 319
igor@0 320 def make_bridges():
igor@2 321 ip=get_management_ip()
igor@2 322 gw=get_default_gateway()
igor@21 323 print "ifconfig %s 0.0.0.0 down" % (trunk)
igor@2 324
igor@2 325 # tagged interfaces
igor@2 326 for bridge in bridges:
igor@2 327 vlan=vlans[bridges.index(bridge)]
igor@2 328 if vlan == 'tagged':
igor@2 329 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s" % (bridges.index(bridge)+2,bridge,trunk)
igor@2 330 print "ip link set %s up" % (trunk)
igor@2 331
igor@2 332 # untagged interfaces
igor@2 333 for bridge in bridges:
igor@2 334 vlan=vlans[bridges.index(bridge)]
igor@2 335 if vlan != 'tagged':
igor@2 336 print "vconfig add %s %s" % (trunk,vlan)
igor@2 337 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s.%s" % (bridges.index(bridge)+2,bridge,trunk,vlan)
igor@2 338 print "ip link set %s.%s up" % (trunk,vlan)
igor@2 339
igor@22 340 print "ifconfig %s.%s %s netmask %s" % (trunk,management_vlan,management_ip,management_netmask)
igor@2 341 if management_gw:
igor@2 342 print "route add default gw %s" % (management_gw)
igor@0 343
igor@0 344
igor@0 345
igor@0 346 #make_all_system()
igor@0 347
igor@0 348 if len(sys.argv) > 1:
igor@2 349 command = sys.argv[2]
igor@9 350 if command == 'make-drbd':
igor@9 351 make_drbd()
igor@9 352 elif command == 'make-domains':
igor@9 353 make_domains()
igor@9 354 elif command == 'make-bridges':
igor@2 355 make_bridges()
igor@2 356 elif command == 'make-links':
igor@2 357 make_links()
igor@2 358 else:
igor@2 359 show_usage()
igor@0 360 else:
igor@2 361 show_usage()
igor@0 362