xen-drbd

annotate xen-drbd-install.py @ 9:e2eafd7e1b85

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Доработана инсталляции системы виртуализации
author igor
date Tue Feb 12 13:34:12 2008 +0200 (2008-02-12)
parents afe3c0992ec3
children c14b6387ada5
rev   line source
igor@0 1 #!/usr/bin/python
igor@0 2
igor@9 3 import sys,re
igor@0 4
igor@0 5 network=sys.argv[1]
igor@0 6 try:
igor@9 7 exec 'from %s import * ' % (network)
igor@9 8 # exec 'from %s import domains,disk_table,lvm_vg_name,node1,node1_ip,node2,node2_ip, \
igor@9 9 # ip_network, domain_name, ip_nameserver, ip_gateway, apt_get_install, \
igor@9 10 # debian_release, debian_mirror, \
igor@9 11 # bridges, vlans, management_vlan, trunk, management_ip, management_gw ' % (network)
igor@0 12 except:
igor@2 13 print "Can't find or interpret module %s with topology description" %(network)
igor@2 14 sys.exit(1)
igor@0 15
igor@0 16 drbd_base_port=7790
igor@0 17 meta_disk='/dev/%s/meta'%lvm_vg_name
igor@2 18 drbd_device={}
igor@0 19
igor@2 20 def make_drbd_hash():
igor@2 21 for dom in domains:
igor@2 22 for disk in disk_table[dom]:
igor@2 23 if disk.find(":") == -1:
igor@2 24 drbd_device[disk]=dom
igor@2 25 else:
igor@2 26 drbd_device[disk.split(':')[0]]=disk.split(':')[1]
igor@2 27
igor@2 28 def make_lvm():
igor@9 29 print "###################################################"
igor@9 30 print "# MAKE LVM FOR DOMAINS DRBD DEVICES"
igor@9 31 print "#"
igor@9 32 for lvm_pv_name in re.compile('\s+').split(lvm_pv_names):
igor@9 33 print "pvcreate %s" % (lvm_pv_name)
igor@9 34 print "vgcreate /dev/%s %s" % (lvm_vg_name, lvm_pv_names)
igor@9 35 print "lvcreate -L %s -n %s /dev/%s" % (lvm_lv_drbd_meta_size, lvm_lv_drbd_meta_name, lvm_vg_name)
igor@2 36 for dom in domains:
igor@2 37 for disk in disk_table[dom]:
igor@2 38 if disk.find(":") == -1:
igor@2 39 #if do_print:
igor@2 40 # print "lvcreate -L %s -n %s /dev/%s" % (disk, dom, lvm_vg_name)
igor@2 41 #drbd_devices.append([dom, "/dev/%s/%s" % (lvm_vg_name, dom)])
igor@2 42 drbd_device[disk]=dom
igor@2 43 else:
igor@2 44 drbd_device[disk.split(':')[0]]=disk.split(':')[0]
igor@9 45 print "lvcreate -L %s -n %s /dev/%s" % (disk.split(':')[1], disk.split(':')[0], lvm_vg_name)
igor@9 46 #drbd_devices.append([disk.split(':')[0], "/dev/%s/%s" % (lvm_vg_name, disk.split(':')[0])])
igor@9 47 print ""
igor@0 48
igor@0 49
igor@0 50 def make_drbdconf():
igor@9 51 print "###################################################"
igor@9 52 print "# MAKE DRBD CONFIG FILE /etc/drbd.conf"
igor@9 53 print "#"
igor@9 54
igor@2 55 print "cat <<DRBD > /etc/drbd.conf"
igor@9 56
igor@9 57
igor@9 58 for dom in domains:
igor@9 59 for disk in disk_table[dom]:
igor@9 60 drbd_number=int(re.compile('drbd').sub('',disk.split(':')[0]))
igor@9 61 resource=disk.split(':')[1]
igor@9 62 disk="/dev/%s/%s" % (lvm_vg_name,resource)
igor@9 63
igor@9 64 print """
igor@0 65 resource %s {
igor@2 66 protocol C;
igor@2 67 net {
igor@2 68 allow-two-primaries;
igor@2 69 after-sb-0pri discard-least-changes;
igor@2 70 after-sb-1pri call-pri-lost-after-sb;
igor@2 71 after-sb-2pri call-pri-lost-after-sb;
igor@2 72 }
igor@2 73 syncer {
igor@2 74 rate 5M;
igor@2 75 }
igor@2 76 on %s
igor@2 77 {
igor@2 78 device /dev/drbd%s;
igor@2 79 disk %s;
igor@2 80 address %s:%s;
igor@2 81 meta-disk %s[%s];
igor@2 82 }
igor@2 83 on %s
igor@2 84 {
igor@2 85 device /dev/drbd%s;
igor@2 86 disk %s;
igor@2 87 address %s:%s;
igor@2 88 meta-disk %s[%s];
igor@2 89 }
igor@0 90 }
igor@0 91
igor@9 92 """ % (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 93 print "DRBD"
igor@9 94 print ""
igor@9 95
igor@9 96
igor@9 97 def make_drbdmeta():
igor@9 98 print "###################################################"
igor@9 99 print "# MAKE DRBD DEVICES "
igor@9 100 print "#"
igor@9 101 print "drbdadm create-md all"
igor@9 102
igor@9 103 def make_drbdprimary():
igor@9 104 print "###################################################"
igor@9 105 print "# SET DRBD DEVICES PRIMARY "
igor@9 106 print "#"
igor@9 107
igor@9 108 print "drbdadm up all"
igor@9 109 for dom in domains:
igor@9 110 for disk in disk_table[dom]:
igor@9 111 print "drbdsetup %s primary -o" % disk.split(':')[0]
igor@0 112
igor@0 113
igor@2 114 def make_links():
igor@2 115
igor@9 116 print "###################################################"
igor@9 117 print "# MAKE SYMBOLIC LINKS TO /dev/drbd* FILES"
igor@9 118 print "#"
igor@2 119
igor@2 120 # drbd_devices={
igor@2 121 # 'dev' : 'resource',
igor@2 122 # }
igor@2 123
igor@2 124 make_drbd_hash()
igor@2 125 print "mkdir -p /dev/drbd"
igor@2 126 for dev in drbd_device.keys():
igor@2 127 resource=drbd_device[dev]
igor@2 128 print "ln -sf /dev/%s /dev/drbd/%s" %(dev, resource)
igor@0 129
igor@0 130 def make_fs():
igor@9 131
igor@9 132 print "###################################################"
igor@9 133 print "# MAKE FILESYSTEMS ON THE DRBDs"
igor@9 134 print "#"
igor@9 135
igor@9 136 for dev in drbd_device.keys():
igor@9 137 print "mkfs.ext3 %s /dev/%s" %(mkfs_options,dev)
igor@0 138
igor@0 139
igor@0 140 def make_mount():
igor@9 141 print "###################################################"
igor@9 142 print "# MOUNT U-DOMAINS FILESYSTEMS"
igor@9 143 print "#"
igor@9 144
igor@2 145 print "mkdir -p /domU"
igor@2 146 for dom in domains:
igor@2 147 print "mkdir -p /domU/%s" % (dom)
igor@2 148 print "mount /dev/drbd/%s /domU/%s" % (dom,dom)
igor@0 149
igor@0 150 def make_umount():
igor@2 151 for dom in domains:
igor@2 152 print "umount /domU/%s" % (dom)
igor@0 153
igor@0 154 def make_dns():
igor@2 155 i=1
igor@2 156 for dom in domains:
igor@2 157 print "%s A %s.%s" % (dom, ip_network, i)
igor@2 158 i+=1
igor@0 159
igor@0 160 def make_dns_reverse():
igor@2 161 i=1
igor@2 162 for dom in domains:
igor@2 163 print "%s A %s.%s." % (i, dom, domain_name)
igor@2 164 i+=1
igor@0 165
igor@0 166 def make_install_debian():
igor@2 167 print """
igor@0 168 debootstrap %s /domU/%s %s
igor@0 169 chroot /domU/%s apt-get install -y --force-yes %s
igor@2 170 """ % (debian_release,domains[0],debian_mirror,domains[0],apt_get_install)
igor@0 171
igor@0 172 def make_rsync():
igor@2 173 for dom in domains[1:]:
igor@2 174 print """
igor@0 175 rsync -a /domU/%s/ /domU/%s/
igor@2 176 """ % (domains[0], dom)
igor@0 177
igor@0 178 def make_etcfstab():
igor@2 179 i=0
igor@2 180 for dom in domains:
igor@2 181 i+=1
igor@2 182 print """
igor@0 183 cat <<FSTAB > /domU/%s/etc/fstab
igor@0 184 proc /proc proc defaults 0 0
igor@0 185 /dev/hda1 / ext3 defaults,errors=remount-ro 0 1
igor@0 186 FSTAB
igor@2 187 """ % (dom)
igor@0 188
igor@0 189 def make_etcnetworkinterfaces():
igor@2 190 i=0
igor@2 191 for dom in domains:
igor@2 192 i+=1
igor@2 193 print """
igor@0 194 cat <<INTERFACES > /domU/%s/etc/network/interfaces
igor@0 195 auto lo eth0
igor@0 196 iface lo inet loopback
igor@0 197
igor@0 198 iface eth0 inet static
igor@9 199 address %s
igor@0 200 netmask 255.255.255.0
igor@0 201 network %s.0
igor@0 202 broadcast %s.255
igor@0 203 gateway %s
igor@0 204 dns-nameservers %s
igor@0 205 dns-search %s
igor@0 206 INTERFACES
igor@9 207 """ % (dom,ip_address_table[dom],ip_network, ip_network, ip_gateway, domain_name, ip_nameserver)
igor@0 208
igor@0 209 def make_etcresolvconf():
igor@2 210 for dom in domains:
igor@2 211 print """
igor@0 212 cat <<RESOLVCONF > /domU/%s/etc/resolv.conf
igor@0 213 search %s
igor@0 214 nameserver %s
igor@0 215 RESOLVCONF
igor@2 216 """ % (dom,domain_name,ip_nameserver)
igor@0 217
igor@0 218 def make_etchostname():
igor@2 219 for dom in domains:
igor@2 220 print """
igor@0 221 cat <<HOSTNAME > /domU/%s/etc/hostname
igor@0 222 %s
igor@0 223 HOSTNAME
igor@2 224 """ % (dom,dom)
igor@0 225
igor@0 226
igor@0 227 def make_etchosts():
igor@2 228 i=0
igor@2 229 for dom in domains:
igor@2 230 i+=1
igor@2 231 print """
igor@0 232 cat <<HOSTS > /domU/%s/etc/hosts
igor@0 233 127.0.0.1 localhost
igor@9 234 %s %s.%s %s
igor@0 235
igor@0 236 ::1 ip6-localhost ip6-loopback
igor@0 237 fe00::0 ip6-localnet
igor@0 238 ff00::0 ip6-mcastprefix
igor@0 239 ff02::1 ip6-allnodes
igor@0 240 ff02::2 ip6-allrouters
igor@0 241 ff02::3 ip6-allhosts
igor@0 242 HOSTS
igor@9 243 """ % (dom,ip_address_table[dom],dom,domain_name,dom)
igor@0 244
igor@0 245 def make_rootssh():
igor@2 246 for dom in domains:
igor@2 247 print """
igor@0 248 mkdir -p /domU/%s/root/.ssh/
igor@0 249 cp ~/.ssh/id_dsa.pub /domU/%s/root/.ssh/authorized_keys
igor@0 250 chmod 600 /domU/%s/root/.ssh/authorized_keys
igor@2 251 """ % (dom,dom,dom)
igor@0 252
igor@0 253 def make_l3rc():
igor@2 254 for dom in domains:
igor@2 255 print """
igor@2 256 cat <<EOF > /domU/%s/root/.l3rc
igor@0 257 l3cd=/users/igor/xen-drbd-dom0-setup/%s.%s/root
igor@0 258 EOF
igor@2 259 """ % (dom,dom,domain_name)
igor@0 260
igor@0 261
igor@0 262 def make_etc():
igor@2 263 make_etcfstab()
igor@2 264 make_etcnetworkinterfaces()
igor@2 265 make_etcresolvconf()
igor@2 266 make_etchosts()
igor@2 267 make_etchostname()
igor@2 268 make_rootssh()
igor@2 269 make_l3rc()
igor@0 270
igor@9 271 def make_drbd():
igor@9 272 make_lvm()
igor@9 273 make_drbdconf()
igor@9 274 make_drbdmeta()
igor@9 275
igor@9 276 def make_domains():
igor@9 277 make_drbdprimary()
igor@9 278 make_links()
igor@2 279 make_fs()
igor@2 280 make_mount()
igor@2 281 make_install_debian()
igor@2 282 make_rsync()
igor@2 283 make_etc()
igor@2 284 make_umount()
igor@0 285
igor@0 286 def get_management_ip():
igor@2 287 return management_ip
igor@0 288
igor@0 289 def get_default_gateway():
igor@2 290 return management_gw
igor@0 291
igor@0 292 def make_bridges():
igor@2 293 ip=get_management_ip()
igor@2 294 gw=get_default_gateway()
igor@2 295 print "ifconfig %s 0.0.0.0" % (trunk)
igor@2 296
igor@2 297 # tagged interfaces
igor@2 298 for bridge in bridges:
igor@2 299 vlan=vlans[bridges.index(bridge)]
igor@2 300 if vlan == 'tagged':
igor@2 301 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s" % (bridges.index(bridge)+2,bridge,trunk)
igor@2 302 print "ip link set %s up" % (trunk)
igor@2 303
igor@2 304 # untagged interfaces
igor@2 305 for bridge in bridges:
igor@2 306 vlan=vlans[bridges.index(bridge)]
igor@2 307 if vlan != 'tagged':
igor@2 308 print "vconfig add %s %s" % (trunk,vlan)
igor@2 309 print "/etc/xen/scripts/network-bridge start vifnum=%s bridge=%s netdev=%s.%s" % (bridges.index(bridge)+2,bridge,trunk,vlan)
igor@2 310 print "ip link set %s.%s up" % (trunk,vlan)
igor@2 311
igor@2 312 print "ifconfig %s.%s %s" % (trunk,management_vlan,management_ip)
igor@2 313 if management_gw:
igor@2 314 print "route add default gw %s" % (management_gw)
igor@0 315
igor@0 316
igor@0 317 def show_usage():
igor@2 318 print """
igor@0 319 Usage:
igor@2 320 xen-drbd-install <network> <command> (to view)
igor@2 321 xen-drbd-install <network> <command> | sh -s (to run)
igor@0 322
igor@2 323 <network> is a name of the file, which contains network description
igor@0 324
igor@0 325 Commands:
igor@9 326 make-drbd
igor@9 327 make-domains
igor@2 328 make-bridges
igor@2 329 make-links
igor@0 330 """
igor@0 331
igor@0 332 #make_all_system()
igor@0 333
igor@0 334 if len(sys.argv) > 1:
igor@2 335 command = sys.argv[2]
igor@9 336 if command == 'make-drbd':
igor@9 337 make_drbd()
igor@9 338 elif command == 'make-domains':
igor@9 339 make_domains()
igor@9 340 elif command == 'make-bridges':
igor@2 341 make_bridges()
igor@2 342 elif command == 'make-links':
igor@2 343 make_links()
igor@2 344 else:
igor@2 345 show_usage()
igor@0 346 else:
igor@2 347 show_usage()
igor@0 348