xen-drbd

annotate xen-drbd-install.py @ 12:6e2436e09983

find changesets by author, revision, files, or words in the commit message
lv sizes fix
author igor
date Tue Feb 12 14:27:15 2008 +0200 (2008-02-12)
parents f94023de662c
children 91f904355b71
rev   line source
igor@0 1 #!/usr/bin/python
igor@0 2
igor@9 3 import sys,re
igor@0 4
igor@10 5 def show_usage():
igor@10 6 print """
igor@10 7 Usage:
igor@10 8 xen-drbd-install <network> <command> (to view)
igor@10 9 xen-drbd-install <network> <command> | sh -s (to run)
igor@10 10
igor@10 11 <network> is a name of the file, which contains network description
igor@10 12
igor@10 13 Commands:
igor@10 14 make-drbd
igor@10 15 make-domains
igor@10 16 make-bridges
igor@10 17 make-links
igor@10 18 """
igor@10 19
igor@11 20 if len(sys.argv) != 3:
igor@10 21 show_usage()
igor@10 22 sys.exit(1)
igor@10 23
igor@10 24
igor@0 25 network=sys.argv[1]
igor@0 26 try:
igor@9 27 exec 'from %s import * ' % (network)
igor@0 28 except:
igor@2 29 print "Can't find or interpret module %s with topology description" %(network)
igor@2 30 sys.exit(1)
igor@0 31
igor@0 32 drbd_base_port=7790
igor@0 33 meta_disk='/dev/%s/meta'%lvm_vg_name
igor@2 34 drbd_device={}
igor@0 35
igor@2 36 def make_drbd_hash():
igor@2 37 for dom in domains:
igor@2 38 for disk in disk_table[dom]:
igor@2 39 if disk.find(":") == -1:
igor@2 40 drbd_device[disk]=dom
igor@2 41 else:
igor@2 42 drbd_device[disk.split(':')[0]]=disk.split(':')[1]
igor@2 43
igor@2 44 def make_lvm():
igor@9 45 print "###################################################"
igor@9 46 print "# MAKE LVM FOR DOMAINS DRBD DEVICES"
igor@9 47 print "#"
igor@9 48 for lvm_pv_name in re.compile('\s+').split(lvm_pv_names):
igor@9 49 print "pvcreate %s" % (lvm_pv_name)
igor@9 50 print "vgcreate /dev/%s %s" % (lvm_vg_name, lvm_pv_names)
igor@9 51 print "lvcreate -L %s -n %s /dev/%s" % (lvm_lv_drbd_meta_size, lvm_lv_drbd_meta_name, lvm_vg_name)
igor@2 52 for dom in domains:
igor@2 53 for disk in disk_table[dom]:
igor@2 54 if disk.find(":") == -1:
igor@2 55 #if do_print:
igor@2 56 # print "lvcreate -L %s -n %s /dev/%s" % (disk, dom, lvm_vg_name)
igor@2 57 #drbd_devices.append([dom, "/dev/%s/%s" % (lvm_vg_name, dom)])
igor@2 58 drbd_device[disk]=dom
igor@2 59 else:
igor@2 60 drbd_device[disk.split(':')[0]]=disk.split(':')[0]
igor@12 61 print "lvcreate -L %s -n %s /dev/%s" % (disk.split(':')[2], disk.split(':')[1], lvm_vg_name)
igor@9 62 #drbd_devices.append([disk.split(':')[0], "/dev/%s/%s" % (lvm_vg_name, disk.split(':')[0])])
igor@9 63 print ""
igor@0 64
igor@0 65
igor@0 66 def make_drbdconf():
igor@9 67 print "###################################################"
igor@9 68 print "# MAKE DRBD CONFIG FILE /etc/drbd.conf"
igor@9 69 print "#"
igor@9 70
igor@2 71 print "cat <<DRBD > /etc/drbd.conf"
igor@9 72
igor@9 73
igor@9 74 for dom in domains:
igor@9 75 for disk in disk_table[dom]:
igor@9 76 drbd_number=int(re.compile('drbd').sub('',disk.split(':')[0]))
igor@9 77 resource=disk.split(':')[1]
igor@9 78 disk="/dev/%s/%s" % (lvm_vg_name,resource)
igor@9 79
igor@9 80 print """
igor@0 81 resource %s {
igor@2 82 protocol C;
igor@2 83 net {
igor@2 84 allow-two-primaries;
igor@2 85 after-sb-0pri discard-least-changes;
igor@2 86 after-sb-1pri call-pri-lost-after-sb;
igor@2 87 after-sb-2pri call-pri-lost-after-sb;
igor@2 88 }
igor@2 89 syncer {
igor@2 90 rate 5M;
igor@2 91 }
igor@2 92 on %s
igor@2 93 {
igor@2 94 device /dev/drbd%s;
igor@2 95 disk %s;
igor@2 96 address %s:%s;
igor@2 97 meta-disk %s[%s];
igor@2 98 }
igor@2 99 on %s
igor@2 100 {
igor@2 101 device /dev/drbd%s;
igor@2 102 disk %s;
igor@2 103 address %s:%s;
igor@2 104 meta-disk %s[%s];
igor@2 105 }
igor@0 106 }
igor@0 107
igor@9 108 """ % (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@9 109 print "DRBD"
igor@9 110 print ""
igor@9 111
igor@9 112
igor@9 113 def make_drbdmeta():
igor@9 114 print "###################################################"
igor@9 115 print "# MAKE DRBD DEVICES "
igor@9 116 print "#"
igor@9 117 print "drbdadm create-md all"
igor@9 118
igor@9 119 def make_drbdprimary():
igor@9 120 print "###################################################"
igor@9 121 print "# SET DRBD DEVICES PRIMARY "
igor@9 122 print "#"
igor@9 123
igor@9 124 print "drbdadm up all"
igor@9 125 for dom in domains:
igor@9 126 for disk in disk_table[dom]:
igor@9 127 print "drbdsetup %s primary -o" % disk.split(':')[0]
igor@0 128
igor@0 129
igor@2 130 def make_links():
igor@2 131
igor@9 132 print "###################################################"
igor@9 133 print "# MAKE SYMBOLIC LINKS TO /dev/drbd* FILES"
igor@9 134 print "#"
igor@2 135
igor@2 136 # drbd_devices={
igor@2 137 # 'dev' : 'resource',
igor@2 138 # }
igor@2 139
igor@2 140 make_drbd_hash()
igor@2 141 print "mkdir -p /dev/drbd"
igor@2 142 for dev in drbd_device.keys():
igor@2 143 resource=drbd_device[dev]
igor@2 144 print "ln -sf /dev/%s /dev/drbd/%s" %(dev, resource)
igor@0 145
igor@0 146 def make_fs():
igor@9 147
igor@9 148 print "###################################################"
igor@9 149 print "# MAKE FILESYSTEMS ON THE DRBDs"
igor@9 150 print "#"
igor@9 151
igor@9 152 for dev in drbd_device.keys():
igor@9 153 print "mkfs.ext3 %s /dev/%s" %(mkfs_options,dev)
igor@0 154
igor@0 155
igor@0 156 def make_mount():
igor@9 157 print "###################################################"
igor@9 158 print "# MOUNT U-DOMAINS FILESYSTEMS"
igor@9 159 print "#"
igor@9 160
igor@2 161 print "mkdir -p /domU"
igor@2 162 for dom in domains:
igor@2 163 print "mkdir -p /domU/%s" % (dom)
igor@2 164 print "mount /dev/drbd/%s /domU/%s" % (dom,dom)
igor@0 165
igor@0 166 def make_umount():
igor@2 167 for dom in domains:
igor@2 168 print "umount /domU/%s" % (dom)
igor@0 169
igor@0 170 def make_dns():
igor@2 171 i=1
igor@2 172 for dom in domains:
igor@2 173 print "%s A %s.%s" % (dom, ip_network, i)
igor@2 174 i+=1
igor@0 175
igor@0 176 def make_dns_reverse():
igor@2 177 i=1
igor@2 178 for dom in domains:
igor@2 179 print "%s A %s.%s." % (i, dom, domain_name)
igor@2 180 i+=1
igor@0 181
igor@0 182 def make_install_debian():
igor@2 183 print """
igor@0 184 debootstrap %s /domU/%s %s
igor@0 185 chroot /domU/%s apt-get install -y --force-yes %s
igor@2 186 """ % (debian_release,domains[0],debian_mirror,domains[0],apt_get_install)
igor@0 187
igor@0 188 def make_rsync():
igor@2 189 for dom in domains[1:]:
igor@2 190 print """
igor@0 191 rsync -a /domU/%s/ /domU/%s/
igor@2 192 """ % (domains[0], dom)
igor@0 193
igor@0 194 def make_etcfstab():
igor@2 195 i=0
igor@2 196 for dom in domains:
igor@2 197 i+=1
igor@2 198 print """
igor@0 199 cat <<FSTAB > /domU/%s/etc/fstab
igor@0 200 proc /proc proc defaults 0 0
igor@0 201 /dev/hda1 / ext3 defaults,errors=remount-ro 0 1
igor@0 202 FSTAB
igor@2 203 """ % (dom)
igor@0 204
igor@0 205 def make_etcnetworkinterfaces():
igor@2 206 i=0
igor@2 207 for dom in domains:
igor@2 208 i+=1
igor@2 209 print """
igor@0 210 cat <<INTERFACES > /domU/%s/etc/network/interfaces
igor@0 211 auto lo eth0
igor@0 212 iface lo inet loopback
igor@0 213
igor@0 214 iface eth0 inet static
igor@9 215 address %s
igor@0 216 netmask 255.255.255.0
igor@0 217 network %s.0
igor@0 218 broadcast %s.255
igor@0 219 gateway %s
igor@0 220 dns-nameservers %s
igor@0 221 dns-search %s
igor@0 222 INTERFACES
igor@9 223 """ % (dom,ip_address_table[dom],ip_network, ip_network, ip_gateway, domain_name, ip_nameserver)
igor@0 224
igor@0 225 def make_etcresolvconf():
igor@2 226 for dom in domains:
igor@2 227 print """
igor@0 228 cat <<RESOLVCONF > /domU/%s/etc/resolv.conf
igor@0 229 search %s
igor@0 230 nameserver %s
igor@0 231 RESOLVCONF
igor@2 232 """ % (dom,domain_name,ip_nameserver)
igor@0 233
igor@0 234 def make_etchostname():
igor@2 235 for dom in domains:
igor@2 236 print """
igor@0 237 cat <<HOSTNAME > /domU/%s/etc/hostname
igor@0 238 %s
igor@0 239 HOSTNAME
igor@2 240 """ % (dom,dom)
igor@0 241
igor@0 242
igor@0 243 def make_etchosts():
igor@2 244 i=0
igor@2 245 for dom in domains:
igor@2 246 i+=1
igor@2 247 print """
igor@0 248 cat <<HOSTS > /domU/%s/etc/hosts
igor@0 249 127.0.0.1 localhost
igor@9 250 %s %s.%s %s
igor@0 251
igor@0 252 ::1 ip6-localhost ip6-loopback
igor@0 253 fe00::0 ip6-localnet
igor@0 254 ff00::0 ip6-mcastprefix
igor@0 255 ff02::1 ip6-allnodes
igor@0 256 ff02::2 ip6-allrouters
igor@0 257 ff02::3 ip6-allhosts
igor@0 258 HOSTS
igor@9 259 """ % (dom,ip_address_table[dom],dom,domain_name,dom)
igor@0 260
igor@0 261 def make_rootssh():
igor@2 262 for dom in domains:
igor@2 263 print """
igor@0 264 mkdir -p /domU/%s/root/.ssh/
igor@0 265 cp ~/.ssh/id_dsa.pub /domU/%s/root/.ssh/authorized_keys
igor@0 266 chmod 600 /domU/%s/root/.ssh/authorized_keys
igor@2 267 """ % (dom,dom,dom)
igor@0 268
igor@0 269 def make_l3rc():
igor@2 270 for dom in domains:
igor@2 271 print """
igor@2 272 cat <<EOF > /domU/%s/root/.l3rc
igor@0 273 l3cd=/users/igor/xen-drbd-dom0-setup/%s.%s/root
igor@0 274 EOF
igor@2 275 """ % (dom,dom,domain_name)
igor@0 276
igor@0 277
igor@0 278 def make_etc():
igor@2 279 make_etcfstab()
igor@2 280 make_etcnetworkinterfaces()
igor@2 281 make_etcresolvconf()
igor@2 282 make_etchosts()
igor@2 283 make_etchostname()
igor@2 284 make_rootssh()
igor@2 285 make_l3rc()
igor@0 286
igor@9 287 def make_drbd():
igor@9 288 make_lvm()
igor@9 289 make_drbdconf()
igor@9 290 make_drbdmeta()
igor@9 291
igor@9 292 def make_domains():
igor@9 293 make_drbdprimary()
igor@9 294 make_links()
igor@2 295 make_fs()
igor@2 296 make_mount()
igor@2 297 make_install_debian()
igor@2 298 make_rsync()
igor@2 299 make_etc()
igor@2 300 make_umount()
igor@0 301
igor@0 302 def get_management_ip():
igor@2 303 return management_ip
igor@0 304
igor@0 305 def get_default_gateway():
igor@2 306 return management_gw
igor@0 307
igor@0 308 def make_bridges():
igor@2 309 ip=get_management_ip()
igor@2 310 gw=get_default_gateway()
igor@2 311 print "ifconfig %s 0.0.0.0" % (trunk)
igor@2 312
igor@2 313 # tagged interfaces
igor@2 314 for bridge in bridges:
igor@2 315 vlan=vlans[bridges.index(bridge)]
igor@2 316 if vlan == 'tagged':
igor@2 317 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s" % (bridges.index(bridge)+2,bridge,trunk)
igor@2 318 print "ip link set %s up" % (trunk)
igor@2 319
igor@2 320 # untagged interfaces
igor@2 321 for bridge in bridges:
igor@2 322 vlan=vlans[bridges.index(bridge)]
igor@2 323 if vlan != 'tagged':
igor@2 324 print "vconfig add %s %s" % (trunk,vlan)
igor@2 325 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s.%s" % (bridges.index(bridge)+2,bridge,trunk,vlan)
igor@2 326 print "ip link set %s.%s up" % (trunk,vlan)
igor@2 327
igor@2 328 print "ifconfig %s.%s %s" % (trunk,management_vlan,management_ip)
igor@2 329 if management_gw:
igor@2 330 print "route add default gw %s" % (management_gw)
igor@0 331
igor@0 332
igor@0 333
igor@0 334 #make_all_system()
igor@0 335
igor@0 336 if len(sys.argv) > 1:
igor@2 337 command = sys.argv[2]
igor@9 338 if command == 'make-drbd':
igor@9 339 make_drbd()
igor@9 340 elif command == 'make-domains':
igor@9 341 make_domains()
igor@9 342 elif command == 'make-bridges':
igor@2 343 make_bridges()
igor@2 344 elif command == 'make-links':
igor@2 345 make_links()
igor@2 346 else:
igor@2 347 show_usage()
igor@0 348 else:
igor@2 349 show_usage()
igor@0 350