X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=source%2Fsteps%2FInstallPartitionDisks.py;h=ca86521b91d6b311ddc25eee3c1c0a9b2b8aace0;hb=f52080486db907ba6557d1047730c638c4562790;hp=1c3f947bc6d221439ea2a4e58614e85ed1ce7b5e;hpb=7213825b1484bad462672f4104facd66c53039e7;p=bootmanager.git diff --git a/source/steps/InstallPartitionDisks.py b/source/steps/InstallPartitionDisks.py index 1c3f947..ca86521 100644 --- a/source/steps/InstallPartitionDisks.py +++ b/source/steps/InstallPartitionDisks.py @@ -1,5 +1,5 @@ #!/usr/bin/python - +# # Copyright (c) 2003 Intel Corporation # All rights reserved. # @@ -10,15 +10,15 @@ import os, sys import string import popen2 - +import time from Exceptions import * import utils import BootServerRequest - +import BootAPI import ModelOptions -def Run( vars, log ): +def Run(vars, log): """ Setup the block devices for install, partition them w/ LVM @@ -29,117 +29,129 @@ def Run( vars, log ): SWAP_SIZE the size of the swap partition """ - log.write( "\n\nStep: Install: partitioning disks.\n" ) + log.write("\n\nStep: Install: partitioning disks.\n") # make sure we have the variables we need try: - TEMP_PATH= vars["TEMP_PATH"] + TEMP_PATH = vars["TEMP_PATH"] if TEMP_PATH == "": - raise ValueError, "TEMP_PATH" + raise ValueError("TEMP_PATH") - INSTALL_BLOCK_DEVICES= vars["INSTALL_BLOCK_DEVICES"] - if( len(INSTALL_BLOCK_DEVICES) == 0 ): - raise ValueError, "INSTALL_BLOCK_DEVICES is empty" + INSTALL_BLOCK_DEVICES = vars["INSTALL_BLOCK_DEVICES"] + if(len(INSTALL_BLOCK_DEVICES) == 0): + raise ValueError("INSTALL_BLOCK_DEVICES is empty") - ROOT_SIZE= vars["ROOT_SIZE"] + # use vs_ROOT_SIZE or lxc_ROOT_SIZE as appropriate + varname = vars['virt'] + "_ROOT_SIZE" + ROOT_SIZE = vars[varname] if ROOT_SIZE == "" or ROOT_SIZE == 0: - raise ValueError, "ROOT_SIZE invalid" + raise ValueError("ROOT_SIZE invalid") - SWAP_SIZE= vars["SWAP_SIZE"] + SWAP_SIZE = vars["SWAP_SIZE"] if SWAP_SIZE == "" or SWAP_SIZE == 0: - raise ValueError, "SWAP_SIZE invalid" + raise ValueError("SWAP_SIZE invalid") - NODE_MODEL_OPTIONS= vars["NODE_MODEL_OPTIONS"] + NODE_MODEL_OPTIONS = vars["NODE_MODEL_OPTIONS"] - PARTITIONS= vars["PARTITIONS"] + PARTITIONS = vars["PARTITIONS"] if PARTITIONS == None: - raise ValueError, "PARTITIONS" + raise ValueError("PARTITIONS") if NODE_MODEL_OPTIONS & ModelOptions.RAWDISK: - VSERVERS_SIZE= "-1" - if "VSERVER_SIZE" in vars: - VSERVERS_SIZE= vars["VSERVERS_SIZE"] + VSERVERS_SIZE = "-1" + if "VSERVERS_SIZE" in vars: + VSERVERS_SIZE = vars["VSERVERS_SIZE"] if VSERVERS_SIZE == "" or VSERVERS_SIZE == 0: - raise ValueError, "VSERVERS_SIZE" + raise ValueError("VSERVERS_SIZE") - except KeyError, var: - raise BootManagerException, "Missing variable in vars: %s\n" % var - except ValueError, var: - raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var + except KeyError as var: + raise BootManagerException("Missing variable in vars: {}\n".format(var)) + except ValueError as var: + raise BootManagerException("Variable in vars, shouldn't be: {}\n".format(var)) - bs_request= BootServerRequest.BootServerRequest(vars) + bs_request = BootServerRequest.BootServerRequest(vars) # disable swap if its on - utils.sysexec_noerr( "swapoff %s" % PARTITIONS["swap"], log ) + utils.sysexec_noerr("swapoff {}".format(PARTITIONS["swap"]), log) # shutdown and remove any lvm groups/volumes - utils.sysexec_noerr( "vgscan", log ) - utils.sysexec_noerr( "vgchange -ay", log ) - utils.sysexec_noerr( "lvremove -f %s" % PARTITIONS["root"], log ) - utils.sysexec_noerr( "lvremove -f %s" % PARTITIONS["swap"], log ) - utils.sysexec_noerr( "lvremove -f %s" % PARTITIONS["vservers"], log ) - utils.sysexec_noerr( "vgchange -an", log ) - utils.sysexec_noerr( "vgremove planetlab", log ) - - log.write( "Running vgscan for devices\n" ) - utils.sysexec_noerr( "vgscan", log ) + utils.sysexec_noerr("vgscan", log) + utils.sysexec_noerr("vgchange -ay", log) + utils.sysexec_noerr("lvremove -f {}".format(PARTITIONS["root"]), log) + utils.sysexec_noerr("lvremove -f {}".format(PARTITIONS["swap"]), log) + utils.sysexec_noerr("lvremove -f {}".format(PARTITIONS["vservers"]), log) + utils.sysexec_noerr("vgchange -an", log) + utils.sysexec_noerr("vgremove -f planetlab", log) + + log.write("Running vgscan for devices\n") + utils.sysexec_noerr("vgscan", log) - used_devices= [] + used_devices = [] INSTALL_BLOCK_DEVICES.sort() - for device in INSTALL_BLOCK_DEVICES: - if single_partition_device( device, vars, log ): + for device in INSTALL_BLOCK_DEVICES: + if single_partition_device(device, vars, log): if (len(used_devices) > 0 and (vars['NODE_MODEL_OPTIONS'] & ModelOptions.RAWDISK)): - log.write( "Running in raw disk mode, not using %s.\n" % device ) + log.write("Running in raw disk mode, not using {}.\n".format(device)) else: - used_devices.append( device ) - log.write( "Successfully initialized %s\n" % device ) + used_devices.append(device) + log.write("Successfully initialized {}\n".format(device)) else: - log.write( "Unable to partition %s, not using it.\n" % device ) + log.write("Unable to partition {], not using it.\n".format(device)) continue # list of devices to be used with vgcreate - vg_device_list= "" + vg_device_list = "" - # initialize the physical volumes + # get partitions + partitions = [] for device in used_devices: - - part_path= get_partition_path_from_device( device, vars, log ) - - if not create_lvm_physical_volume( part_path, vars, log ): - raise BootManagerException, "Could not create lvm physical volume " \ - "on partition %s" % part_path - + part_path = get_partition_path_from_device(device, vars, log) + partitions.append(part_path) + + # create raid partition + raid_partition = create_raid_partition(partitions, vars, log) + if raid_partition != None: + partitions = [raid_partition] + log.write("PARTITIONS {}\n".format(str(partitions))) + # initialize the physical volumes + for part_path in partitions: + if not create_lvm_physical_volume(part_path, vars, log): + raise BootManagerException("Could not create lvm physical volume " + "on partition {}".format(part_path)) vg_device_list = vg_device_list + " " + part_path # create an lvm volume group - utils.sysexec( "vgcreate -s32M planetlab %s" % vg_device_list, log) + utils.sysexec("vgcreate -s32M planetlab {}".format(vg_device_list), log) # create swap logical volume - utils.sysexec( "lvcreate -L%s -nswap planetlab" % SWAP_SIZE, log ) - - # create root logical volume - utils.sysexec( "lvcreate -L%s -nroot planetlab" % ROOT_SIZE, log ) + utils.sysexec("lvcreate -L{} -nswap planetlab".format(SWAP_SIZE), log) - if vars['NODE_MODEL_OPTIONS'] & ModelOptions.RAWDISK and VSERVERS_SIZE != "-1": - utils.sysexec( "lvcreate -L%s -nvservers planetlab" % VSERVERS_SIZE, log ) - remaining_extents= get_remaining_extents_on_vg( vars, log ) - utils.sysexec( "lvcreate -l%s -nrawdisk planetlab" % remaining_extents, log ) + # check if we want a separate partition for VMs + one_partition = vars['ONE_PARTITION']=='1' + if (one_partition): + remaining_extents = get_remaining_extents_on_vg(vars, log) + utils.sysexec("lvcreate -l{} -nroot planetlab".format(remaining_extents), log) else: - # create vservers logical volume with all remaining space - # first, we need to get the number of remaining extents we can use - remaining_extents= get_remaining_extents_on_vg( vars, log ) - - utils.sysexec( "lvcreate -l%s -nvservers planetlab" % remaining_extents, log ) + utils.sysexec("lvcreate -L{} -nroot planetlab".format(ROOT_SIZE), log) + if vars['NODE_MODEL_OPTIONS'] & ModelOptions.RAWDISK and VSERVERS_SIZE != "-1": + utils.sysexec("lvcreate -L{} -nvservers planetlab".format(VSERVERS_SIZE), log) + remaining_extents = get_remaining_extents_on_vg(vars, log) + utils.sysexec("lvcreate -l{} -nrawdisk planetlab".format(remaining_extents), log) + else: + # create vservers logical volume with all remaining space + # first, we need to get the number of remaining extents we can use + remaining_extents = get_remaining_extents_on_vg(vars, log) + utils.sysexec("lvcreate -l{} -nvservers planetlab".format(remaining_extents), log) # activate volume group (should already be active) - #utils.sysexec( TEMP_PATH + "vgchange -ay planetlab", log ) + #utils.sysexec(TEMP_PATH + "vgchange -ay planetlab", log) # make swap - utils.sysexec( "mkswap %s" % PARTITIONS["swap"], log ) + utils.sysexec("mkswap -f {}".format(PARTITIONS["swap"]), log) # check if badhd option has been set option = '' @@ -152,25 +164,46 @@ def Run( vars, log ): # reserved-blocks-percentages filesystems = {"root":5,"vservers":0} - # make the file systems - for fs in filesystems.keys(): - # get the reserved blocks percentage - rbp = filesystems[fs] - devname = PARTITIONS[fs] - log.write("formatting %s partition (%s)%s.\n" % (fs,devname,txt)) - utils.sysexec( "mkfs.ext2 -q %s -m %d -j %s" % (option,rbp,devname), log ) + # ROOT filesystem is always with ext2 + fs = 'root' + rbp = filesystems[fs] + devname = PARTITIONS[fs] + log.write("formatting {} partition ({}){}.\n".format(fs, devname, txt)) + utils.sysexec("mkfs.ext2 -q {} -m {} -j {}".format(option, rbp, devname), log) + # disable time/count based filesystems checks + utils.sysexec_noerr("tune2fs -c -1 -i 0 {}".format(devname), log) + + # VSERVER filesystem with btrfs to support snapshoting and stuff + fs = 'vservers' + rbp = filesystems[fs] + devname = PARTITIONS[fs] + if vars['virt'] == 'vs': + log.write("formatting {} partition ({}){}.\n".format(fs, devname, txt)) + utils.sysexec("mkfs.ext2 -q {} -m {} -j {}".format(option, rbp, devname)), log) + # disable time/count based filesystems checks + utils.sysexec_noerr("tune2fs -c -1 -i 0 {}".format(devname), log) + elif not one_partition: + log.write("formatting {} btrfs partition ({}).\n".format(fs, devname)) + # early BootCD's seem to come with a version of mkfs.btrfs that does not support -f + # let's check for that before invoking it + mkfs = "mkfs.btrfs" + if os.system("mkfs.btrfs --help 2>&1 | grep force") == 0: + mkfs += " -f" + mkfs +=" {}".format(devname) + utils.sysexec(mkfs, log) + # as of 2013/02 it looks like there's not yet an option to set fsck frequency with btrfs # save the list of block devices in the log - log.write( "Block devices used (in lvm): %s\n" % repr(used_devices)) + log.write("Block devices used (in lvm): {}\n".format(repr(used_devices))) # list of block devices used may be updated - vars["INSTALL_BLOCK_DEVICES"]= used_devices + vars["INSTALL_BLOCK_DEVICES"] = used_devices return 1 import parted -def single_partition_device( device, vars, log ): +def single_partition_device(device, vars, log): """ initialize a disk by removing the old partition tables, and creating a new single partition that fills the disk. @@ -179,36 +212,43 @@ def single_partition_device( device, vars, log ): """ # two forms, depending on which version of pyparted we have + # v1 does not have a 'version' method + # v2 and above does, but to make it worse, + # parted-3.4 on f14 has parted.version broken and raises SystemError try: - version=parted.version() + parted.version() return single_partition_device_2_x (device, vars, log) - except: + except AttributeError: + # old parted does not have version at all return single_partition_device_1_x (device, vars, log) + except SystemError: + # let's assume this is >=2 + return single_partition_device_2_x (device, vars, log) + except: + raise - - -def single_partition_device_1_x ( device, vars, log): +def single_partition_device_1_x (device, vars, log): - lvm_flag= parted.partition_flag_get_by_name('lvm') + lvm_flag = parted.partition_flag_get_by_name('lvm') try: - print >>log, "Using pyparted 1.x" + log.write("Using pyparted 1.x\n") # wipe the old partition table - utils.sysexec( "dd if=/dev/zero of=%s bs=512 count=1" % device, log ) + utils.sysexec("dd if=/dev/zero of={} bs=512 count=1".format(device), log) # get the device - dev= parted.PedDevice.get(device) + dev = parted.PedDevice.get(device) # create a new partition table - disk= dev.disk_new_fresh(parted.disk_type_get("msdos")) + disk = dev.disk_new_fresh(parted.disk_type_get("msdos")) # create one big partition on each block device - constraint= dev.constraint_any() + constraint = dev.constraint_any() - new_part= disk.partition_new( + new_part = disk.partition_new( parted.PARTITION_PRIMARY, parted.file_system_type_get("ext2"), - 0, 1 ) + 0, 1) # make it an lvm partition new_part.set_flag(lvm_flag,1) @@ -221,44 +261,54 @@ def single_partition_device_1_x ( device, vars, log): disk.commit() del disk - except BootManagerException, e: - log.write( "BootManagerException while running: %s\n" % str(e) ) + except BootManagerException as e: + log.write("BootManagerException while running: {}\n".format(str(e))) return 0 - except parted.error, e: - log.write( "parted exception while running: %s\n" % str(e) ) + except parted.error as e: + log.write("parted exception while running: {}\n".format(str(e))) return 0 return 1 -def single_partition_device_2_x ( device, vars, log): +def single_partition_device_2_x (device, vars, log): try: - print >>log, "Using pyparted 2.x" - # wipe the old partition table - utils.sysexec( "dd if=/dev/zero of=%s bs=512 count=1" % device, log ) - # get the device - dev= parted.Device(device) + log.write("Using pyparted 2.x\n") + + # Thierry june 2012 -- for disks larger than 2TB + # calling this with part_type='msdos' would fail at the maximizePartition stage # create a new partition table - disk= parted.freshDisk(dev,'msdos') - # create one big partition on each block device - constraint= parted.constraint.Constraint (device=dev) - geometry = parted.geometry.Geometry (device=dev, start=0, end=1) - fs = parted.filesystem.FileSystem (type="ext2",geometry=geometry) - new_part= parted.partition.Partition (disk, type=parted.PARTITION_NORMAL, - fs=fs, geometry=geometry) - # make it an lvm partition - new_part.setFlag(parted.PARTITION_LVM) - # actually add the partition to the disk - disk.addPartition(new_part, constraint) - disk.maximizePartition(new_part,constraint) - disk.commit() - print >>log, 'Current disk for %s'%device,disk - print >>log, 'Current dev for %s'%device,dev - del disk - except Exception, e: - log.write( "Exception inside single_partition_device_2_x : %s\n" % str(e) ) + def partition_table (device, part_type, fs_type): + # wipe the old partition table + utils.sysexec("dd if=/dev/zero of={} bs=512 count=1".format(device), log) + # get the device + dev = parted.Device(device) + disk = parted.freshDisk(dev, part_type) + # create one big partition on each block device + constraint = parted.constraint.Constraint (device=dev) + geometry = parted.geometry.Geometry (device=dev, start=0, end=1) + fs = parted.filesystem.FileSystem (type=fs_type, geometry=geometry) + new_part = parted.partition.Partition (disk, type=parted.PARTITION_NORMAL, + fs=fs, geometry=geometry) + # make it an lvm partition + new_part.setFlag(parted.PARTITION_LVM) + # actually add the partition to the disk + disk.addPartition(new_part, constraint) + disk.maximizePartition(new_part, constraint) + disk.commit() + log.write ("Current disk for {} - partition type {}\n{}\n".format(device, part_type, disk)) + log.write ("Current dev for {}\n{}\n".format(device, dev)) + del disk + + try: + partition_table (device, 'msdos', 'ext2') + except: + partition_table (device, 'gpt', 'ext2') + + except Exception as e: + log.write("Exception inside single_partition_device_2_x : {}\n".format(str(e))) import traceback traceback.print_exc(file=log) return 0 @@ -267,7 +317,7 @@ def single_partition_device_2_x ( device, vars, log): -def create_lvm_physical_volume( part_path, vars, log ): +def create_lvm_physical_volume(part_path, vars, log): """ make the specificed partition a lvm physical volume. @@ -276,44 +326,91 @@ def create_lvm_physical_volume( part_path, vars, log ): try: # again, wipe any old data, this time on the partition - utils.sysexec( "dd if=/dev/zero of=%s bs=512 count=1" % part_path, log ) + utils.sysexec("dd if=/dev/zero of={} bs=512 count=1".format(part_path), log) ### patch Thierry Parmentelat, required on some hardware import time time.sleep(1) - utils.sysexec( "pvcreate -ffy %s" % part_path, log ) - except BootManagerException, e: - log.write( "create_lvm_physical_volume failed.\n" ) + utils.sysexec("pvcreate -ffy {}".format(part_path), log) + except BootManagerException as e: + log.write("create_lvm_physical_volume failed.\n") return 0 return 1 +def create_raid_partition(partitions, vars, log): + """ + create raid array using specified partitions. + """ + raid_part = None + raid_enabled = False + node_tags = BootAPI.call_api_function(vars, "GetNodeTags", + ({'node_id': vars['NODE_ID']},)) + for node_tag in node_tags: + if node_tag['tagname'] == 'raid_enabled' and \ + node_tag['value'] == '1': + raid_enabled = True + break + if not raid_enabled: + return raid_part + + try: + log.write("Software raid enabled.\n") + # wipe everything + utils.sysexec_noerr("mdadm --stop /dev/md0", log) + time.sleep(1) + for part_path in partitions: + utils.sysexec_noerr("mdadm --zero-superblock {} ".format(part_path), log) + + # assume each partiton is on a separate disk + num_parts = len(partitions) + if num_parts < 2: + log.write("Not enough disks for raid. Found: {}\n".format(partitions)) + raise BootManagerException("Not enough disks for raid. Found: {}\n".format(partitions)) + if num_parts == 2: + lvl = 1 + else: + lvl = 5 + + # make the array + part_list = " ".join(partitions) + raid_part = "/dev/md0" + cmd = "mdadm --create {raid_part} --chunk=128 --level=raid{lvl} "\ + "--raid-devices={num_parts} {part_list}".format(**locals()) + utils.sysexec(cmd, log) + + except BootManagerException as e: + log.write("create_raid_partition failed.\n") + raid_part = None + + return raid_part + -def get_partition_path_from_device( device, vars, log ): +def get_partition_path_from_device(device, vars, log): """ given a device, return the path of the first partition on the device """ # those who wrote the cciss driver just had to make it difficult - cciss_test= "/dev/cciss" + cciss_test = "/dev/cciss" if device[:len(cciss_test)] == cciss_test: - part_path= device + "p1" + part_path = device + "p1" else: - part_path= device + "1" + part_path = device + "1" return part_path -def get_remaining_extents_on_vg( vars, log ): +def get_remaining_extents_on_vg(vars, log): """ return the free amount of extents on the planetlab volume group """ c_stdout, c_stdin = popen2.popen2("vgdisplay -c planetlab") - result= string.strip(c_stdout.readline()) + result = string.strip(c_stdout.readline()) c_stdout.close() c_stdin.close() - remaining_extents= string.split(result,":")[15] + remaining_extents = string.split(result, ":")[15] return remaining_extents