def create_template_from_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
volume_abs_path = translate_absolute_path_from_install_path(cmd.volumePath)
install_abs_path = translate_absolute_path_from_install_path(cmd.installPath)
if cmd.sharedVolume:
lvm.do_active_lv(volume_abs_path, lvm.LvmlockdLockType.SHARE, True)
with lvm.RecursiveOperateLv(volume_abs_path, shared=cmd.sharedVolume, skip_deactivate_tags=[IMAGE_TAG]):
virtual_size = linux.qcow2_virtualsize(volume_abs_path)
total_size = 0
for qcow2 in linux.qcow2_get_file_chain(volume_abs_path):
total_size += int(lvm.get_lv_size(qcow2))
if total_size > virtual_size:
total_size = virtual_size
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_absolute_path(install_abs_path, total_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path, shared=False, delete_when_exception=True):
linux.create_template(volume_abs_path, install_abs_path)
logger.debug('successfully created template[%s] from volume[%s]' % (cmd.installPath, cmd.volumePath))
if cmd.compareQcow2 is True:
logger.debug("comparing qcow2 between %s and %s")
bash.bash_errorout("time qemu-img compare %s %s" % (volume_abs_path, install_abs_path))
logger.debug("confirmed qcow2 %s and %s are identical" % (volume_abs_path, install_abs_path))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def offline_merge_snapshots(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = OfflineMergeSnapshotRsp()
src_abs_path = translate_absolute_path_from_install_path(cmd.srcPath)
dst_abs_path = translate_absolute_path_from_install_path(cmd.destPath)
with lvm.RecursiveOperateLv(src_abs_path, shared=True):
virtual_size = linux.qcow2_virtualsize(src_abs_path)
if not lvm.lv_exists(dst_abs_path):
lvm.create_lv_from_absolute_path(
dst_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.RecursiveOperateLv(dst_abs_path, shared=False):
if not cmd.fullRebase:
linux.qcow2_rebase(src_abs_path, dst_abs_path)
else:
tmp_lv = 'tmp_%s' % uuidhelper.uuid()
tmp_abs_path = os.path.join(os.path.dirname(dst_abs_path),
tmp_lv)
tmp_abs_path = os.path.join(os.path.dirname(dst_abs_path),
tmp_lv)
logger.debug("creating temp lv %s" % tmp_abs_path)
lvm.create_lv_from_absolute_path(
tmp_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(tmp_abs_path,
shared=False,
delete_when_exception=True):
linux.create_template(dst_abs_path, tmp_abs_path)
lvm.lv_rename(tmp_abs_path,
dst_abs_path,
overwrite=True)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def offline_merge_snapshots(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = OfflineMergeSnapshotRsp()
src_abs_path = translate_absolute_path_from_install_path(cmd.srcPath)
dst_abs_path = translate_absolute_path_from_install_path(cmd.destPath)
with lvm.RecursiveOperateLv(src_abs_path, shared=True):
virtual_size = linux.qcow2_virtualsize(src_abs_path)
if not lvm.lv_exists(dst_abs_path):
lvm.create_lv_from_absolute_path(dst_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.RecursiveOperateLv(dst_abs_path, shared=False):
if not cmd.fullRebase:
linux.qcow2_rebase(src_abs_path, dst_abs_path)
else:
tmp_lv = 'tmp_%s' % uuidhelper.uuid()
tmp_abs_path = os.path.join(os.path.dirname(dst_abs_path), tmp_lv)
tmp_abs_path = os.path.join(os.path.dirname(dst_abs_path), tmp_lv)
logger.debug("creating temp lv %s" % tmp_abs_path)
lvm.create_lv_from_absolute_path(tmp_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(tmp_abs_path, shared=False, delete_when_exception=True):
linux.create_template(dst_abs_path, tmp_abs_path)
lvm.lv_rename(tmp_abs_path, dst_abs_path, overwrite=True)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def download_from_sftp(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
install_abs_path = translate_absolute_path_from_install_path(
cmd.primaryStorageInstallPath)
size = linux.sftp_get(cmd.hostname, cmd.sshKey,
cmd.backupStorageInstallPath, install_abs_path,
cmd.username, cmd.sshPort, True)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_absolute_path(
install_abs_path, size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path,
shared=False,
delete_when_exception=True):
linux.scp_download(cmd.hostname, cmd.sshKey,
cmd.backupStorageInstallPath, install_abs_path,
cmd.username, cmd.sshPort)
logger.debug('successfully download %s/%s to %s' %
(cmd.hostname, cmd.backupStorageInstallPath,
cmd.primaryStorageInstallPath))
self.do_active_lv(cmd.primaryStorageInstallPath, cmd.lockType, False)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def create_empty_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.installPath)
if cmd.backingFile:
qcow2_options = self.calc_qcow2_option(self, cmd.qcow2Options, True, cmd.provisioning)
backing_abs_path = translate_absolute_path_from_install_path(cmd.backingFile)
with lvm.RecursiveOperateLv(backing_abs_path, shared=True):
virtual_size = linux.qcow2_virtualsize(backing_abs_path)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_cmd(install_abs_path, virtual_size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path, shared=False, delete_when_exception=True):
linux.qcow2_create_with_backing_file_and_option(backing_abs_path, install_abs_path, qcow2_options)
elif not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_cmd(install_abs_path, cmd.size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
if cmd.volumeFormat != 'raw':
qcow2_options = self.calc_qcow2_option(self, cmd.qcow2Options, False, cmd.provisioning)
with lvm.OperateLv(install_abs_path, shared=False, delete_when_exception=True):
linux.qcow2_create_with_option(install_abs_path, cmd.size, qcow2_options)
linux.qcow2_fill(0, 1048576, install_abs_path)
logger.debug('successfully create empty volume[uuid:%s, size:%s] at %s' % (cmd.volumeUuid, cmd.size, cmd.installPath))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def create_template_from_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
volume_abs_path = translate_absolute_path_from_install_path(
cmd.volumePath)
install_abs_path = translate_absolute_path_from_install_path(
cmd.installPath)
if cmd.sharedVolume:
lvm.do_active_lv(volume_abs_path, lvm.LvmlockdLockType.SHARE, True)
with lvm.RecursiveOperateLv(volume_abs_path,
shared=cmd.sharedVolume,
skip_deactivate_tag=IMAGE_TAG):
virtual_size = linux.qcow2_virtualsize(volume_abs_path)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_absolute_path(
install_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path,
shared=False,
delete_when_exception=True):
linux.create_template(volume_abs_path, install_abs_path)
logger.debug(
'successfully created template[%s] from volume[%s]' %
(cmd.installPath, cmd.volumePath))
if cmd.compareQcow2 is True:
logger.debug("comparing qcow2 between %s and %s")
bash.bash_errorout("time qemu-img compare %s %s" %
(volume_abs_path, install_abs_path))
logger.debug("confirmed qcow2 %s and %s are identical" %
(volume_abs_path, install_abs_path))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def create_empty_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.installPath)
if cmd.backingFile:
qcow2_options = self.calc_qcow2_option(self, cmd.qcow2Options, True, cmd.provisioning)
backing_abs_path = translate_absolute_path_from_install_path(cmd.backingFile)
with lvm.RecursiveOperateLv(backing_abs_path, shared=True):
virtual_size = linux.qcow2_virtualsize(backing_abs_path)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_cmd(install_abs_path, virtual_size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path, shared=False, delete_when_exception=True):
linux.qcow2_create_with_backing_file_and_option(backing_abs_path, install_abs_path, qcow2_options)
elif not lvm.lv_exists(install_abs_path):
qcow2_options = self.calc_qcow2_option(self, cmd.qcow2Options, False, cmd.provisioning)
lvm.create_lv_from_cmd(install_abs_path, cmd.size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path, shared=False, delete_when_exception=True):
linux.qcow2_create_with_option(install_abs_path, cmd.size, qcow2_options)
linux.qcow2_fill(0, 1048576, install_abs_path)
logger.debug('successfully create empty volume[uuid:%s, size:%s] at %s' % (cmd.volumeUuid, cmd.size, cmd.installPath))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def convert_volume_provisioning(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = ConvertVolumeProvisioningRsp()
if cmd.provisioningStrategy != "ThinProvisioning":
raise NotImplementedError
abs_path = translate_absolute_path_from_install_path(cmd.installPath)
with lvm.RecursiveOperateLv(abs_path, shared=False):
image_offest = long(
bash.bash_o(
"qemu-img check %s | grep 'Image end offset' | awk -F ': ' '{print $2}'"
% abs_path).strip())
current_size = long(lvm.get_lv_size(abs_path))
virtual_size = linux.qcow2_virtualsize(abs_path)
size = image_offest + cmd.addons[
lvm.thinProvisioningInitializeSize]
if size > current_size:
size = current_size
if size > virtual_size:
size = virtual_size
lvm.resize_lv(abs_path, size, True)
rsp.actualSize = size
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def create_root_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
template_abs_path_cache = translate_absolute_path_from_install_path(
cmd.templatePathInCache)
install_abs_path = translate_absolute_path_from_install_path(
cmd.installPath)
qcow2_options = self.calc_qcow2_option(self, cmd.qcow2Options, True,
cmd.provisioning)
with lvm.RecursiveOperateLv(template_abs_path_cache,
shared=True,
skip_deactivate_tags=[IMAGE_TAG]):
virtual_size = linux.qcow2_virtualsize(template_abs_path_cache)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_cmd(
install_abs_path, virtual_size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path,
shared=False,
delete_when_exception=True):
linux.qcow2_clone_with_option(template_abs_path_cache,
install_abs_path, qcow2_options)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def connect(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = ConnectRsp()
diskPaths = set()
def config_lvm(host_id):
lvm.backup_lvm_config()
lvm.reset_lvm_conf_default()
lvm.config_lvm_by_sed("use_lvmlockd", "use_lvmlockd=1", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("use_lvmetad", "use_lvmetad=0", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("host_id", "host_id=%s" % host_id, ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("sanlock_lv_extend", "sanlock_lv_extend=%s" % DEFAULT_SANLOCK_LV_SIZE, ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("lvmlockd_lock_retries", "lvmlockd_lock_retries=6", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("issue_discards", "issue_discards=1", ["lvm.conf", "lvmlocal.conf"])
lvm.config_sanlock_by_sed("sh_retries", "sh_retries=20")
lvm.config_sanlock_by_sed("logfile_priority", "logfile_priority=7")
lvm.config_sanlock_by_sed("renewal_read_extend_sec", "renewal_read_extend_sec=24")
lvm.config_sanlock_by_sed("debug_renew", "debug_renew=1")
lvm.config_sanlock_by_sed("use_watchdog", "use_watchdog=0")
config_lvm(cmd.hostId)
for diskUuid in cmd.sharedBlockUuids:
disk = CheckDisk(diskUuid)
diskPaths.add(disk.get_path())
lvm.start_lvmlockd()
lvm.check_gl_lock()
rsp.isFirst = self.create_vg_if_not_found(cmd.vgUuid, diskPaths, cmd.hostUuid, cmd.forceWipe)
lvm.start_vg_lock(cmd.vgUuid)
lvm.clean_vg_exists_host_tags(cmd.vgUuid, cmd.hostUuid, HEARTBEAT_TAG)
lvm.add_vg_tag(cmd.vgUuid, "%s::%s::%s" % (HEARTBEAT_TAG, cmd.hostUuid, time.time()))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp.hostId = lvm.get_running_host_id(cmd.vgUuid)
return jsonobject.dumps(rsp)
def connect(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = ConnectRsp()
diskPaths = set()
def config_lvm(host_id, enableLvmetad=False):
lvm.backup_lvm_config()
lvm.reset_lvm_conf_default()
lvm.config_lvm_by_sed("use_lvmlockd", "use_lvmlockd=1", ["lvm.conf", "lvmlocal.conf"])
if enableLvmetad:
lvm.config_lvm_by_sed("use_lvmetad", "use_lvmetad=1", ["lvm.conf", "lvmlocal.conf"])
else:
lvm.config_lvm_by_sed("use_lvmetad", "use_lvmetad=0", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("host_id", "host_id=%s" % host_id, ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("sanlock_lv_extend", "sanlock_lv_extend=%s" % DEFAULT_SANLOCK_LV_SIZE, ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("lvmlockd_lock_retries", "lvmlockd_lock_retries=6", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("issue_discards", "issue_discards=1", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("reserved_stack", "reserved_stack=256", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("reserved_memory", "reserved_memory=131072", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_filter(["lvm.conf", "lvmlocal.conf"])
lvm.config_sanlock_by_sed("sh_retries", "sh_retries=20")
lvm.config_sanlock_by_sed("logfile_priority", "logfile_priority=7")
lvm.config_sanlock_by_sed("renewal_read_extend_sec", "renewal_read_extend_sec=24")
lvm.config_sanlock_by_sed("debug_renew", "debug_renew=1")
lvm.config_sanlock_by_sed("use_watchdog", "use_watchdog=0")
sanlock_hostname = "%s-%s-%s" % (cmd.vgUuid[:8], cmd.hostUuid[:8], bash.bash_o("hostname").strip()[:20])
lvm.config_sanlock_by_sed("our_host_name", "our_host_name=%s" % sanlock_hostname)
config_lvm(cmd.hostId, cmd.enableLvmetad)
for diskUuid in cmd.sharedBlockUuids:
disk = CheckDisk(diskUuid)
diskPaths.add(disk.get_path())
lvm.start_lvmlockd()
lvm.check_gl_lock()
logger.debug("find/create vg %s lock..." % cmd.vgUuid)
rsp.isFirst = self.create_vg_if_not_found(cmd.vgUuid, diskPaths, cmd.hostUuid, cmd.forceWipe)
lvm.check_stuck_vglk()
logger.debug("starting vg %s lock..." % cmd.vgUuid)
lvm.start_vg_lock(cmd.vgUuid)
if lvm.lvm_vgck(cmd.vgUuid, 60)[0] is False and lvm.lvm_check_operation(cmd.vgUuid) is False:
lvm.drop_vg_lock(cmd.vgUuid)
logger.debug("restarting vg %s lock..." % cmd.vgUuid)
lvm.check_gl_lock()
lvm.start_vg_lock(cmd.vgUuid)
lvm.clean_vg_exists_host_tags(cmd.vgUuid, cmd.hostUuid, HEARTBEAT_TAG)
lvm.add_vg_tag(cmd.vgUuid, "%s::%s::%s::%s" % (HEARTBEAT_TAG, cmd.hostUuid, time.time(), bash.bash_o('hostname').strip()))
self.clear_stalled_qmp_socket()
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp.hostId = lvm.get_running_host_id(cmd.vgUuid)
rsp.vgLvmUuid = lvm.get_vg_lvm_uuid(cmd.vgUuid)
rsp.hostUuid = cmd.hostUuid
return jsonobject.dumps(rsp)
def migrate_volumes(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
current_abs_path = translate_absolute_path_from_install_path(struct.currentInstallPath)
with lvm.OperateLv(current_abs_path, shared=True):
virtual_size = lvm.get_lv_size(current_abs_path)
if lvm.lv_exists(target_abs_path):
target_ps_uuid = get_primary_storage_uuid_from_install_path(struct.targetInstallPath)
raise Exception("found %s already exists on ps %s" %
(target_abs_path, target_ps_uuid))
lvm.create_lv_from_absolute_path(target_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
lvm.active_lv(target_abs_path, lvm.LvmlockdLockType.SHARE)
try:
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
current_abs_path = translate_absolute_path_from_install_path(struct.currentInstallPath)
with lvm.OperateLv(current_abs_path, shared=True):
bash.bash_errorout("cp %s %s" % (current_abs_path, target_abs_path))
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
current_abs_path = translate_absolute_path_from_install_path(struct.currentInstallPath)
with lvm.RecursiveOperateLv(current_abs_path, shared=True):
previous_ps_uuid = get_primary_storage_uuid_from_install_path(struct.currentInstallPath)
target_ps_uuid = get_primary_storage_uuid_from_install_path(struct.targetInstallPath)
current_backing_file = linux.qcow2_get_backing_file(current_abs_path) # type: str
target_backing_file = current_backing_file.replace(previous_ps_uuid, target_ps_uuid)
if current_backing_file is not None and current_backing_file != "":
lvm.do_active_lv(target_backing_file, lvm.LvmlockdLockType.SHARE, False)
logger.debug("rebase %s to %s" % (target_abs_path, target_backing_file))
linux.qcow2_rebase_no_check(target_backing_file, target_abs_path)
if struct.compareQcow2:
bash.bash_errorout("time qemu-img compare %s %s" % (current_abs_path, target_abs_path))
except Exception as e:
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
if struct.currentInstallPath == struct.targetInstallPath:
logger.debug("current install path %s equals target %s, skip to delete" %
(struct.currentInstallPath, struct.targetInstallPath))
else:
logger.debug("error happened, delete lv %s" % target_abs_path)
lvm.delete_lv(target_abs_path, False)
raise e
finally:
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
lvm.deactive_lv(target_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def check_bits(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = CheckBitsRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.path)
rsp.existing = lvm.lv_exists(install_abs_path)
if cmd.vgUuid is not None and lvm.vg_exists(cmd.vgUuid):
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid, False)
return jsonobject.dumps(rsp)
def active_lv(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
self.do_active_lv(cmd.installPath, cmd.lockType, cmd.recursive)
return jsonobject.dumps(rsp)
def active_lv(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid, raise_exception=False)
self.do_active_lv(cmd.installPath, cmd.lockType, cmd.recursive)
return jsonobject.dumps(rsp)
def check_bits(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = CheckBitsRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.path)
rsp.existing = lvm.lv_exists(install_abs_path)
if cmd.vgUuid is not None and lvm.vg_exists(cmd.vgUuid):
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid, False)
return jsonobject.dumps(rsp)
def download_from_sftp(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.primaryStorageInstallPath)
self.do_download_from_sftp(cmd, install_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def create_template_from_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = VolumeRsp()
volume_abs_path = get_absolute_path_from_install_path(cmd.volumePath)
snap_name = cmd.installPath.split("/")[-1]
lvm.create_lvm_snapshot(volume_abs_path, snapName=snap_name)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def download_from_sftp(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.primaryStorageInstallPath)
self.do_download_from_sftp(cmd, install_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def get_volume_size(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = GetVolumeSizeRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.installPath)
rsp.size = lvm.get_lv_size(install_abs_path)
rsp.actualSize = rsp.size
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def get_backing_chain(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = GetBackingChainRsp()
abs_path = translate_absolute_path_from_install_path(cmd.installPath)
with lvm.RecursiveOperateLv(abs_path, shared=True, skip_deactivate_tags=[IMAGE_TAG], delete_when_exception=False):
rsp.backingChain = linux.qcow2_get_file_chain(abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def delete_bits(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
if cmd.folder:
raise Exception("not support this operation")
self.do_delete_bits(cmd.path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def delete_bits(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
if cmd.folder:
raise Exception("not support this operation")
self.do_delete_bits(cmd.path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def get_volume_size(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = GetVolumeSizeRsp()
install_abs_path = translate_absolute_path_from_install_path(cmd.installPath)
with lvm.OperateLv(install_abs_path, shared=True):
rsp.size = linux.qcow2_virtualsize(install_abs_path)
rsp.actualSize = lvm.get_lv_size(install_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def revert_volume_from_snapshot(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = RevertVolumeFromSnapshotRsp()
snapshot_abs_path = get_absolute_path_from_install_path(
cmd.snapshotInstallPath)
install_abs_path = get_absolute_path_from_install_path(cmd.installPath)
rsp.size = False
rsp.error = "not supported yet!"
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return rsp
def create_empty_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = VolumeRsp()
install_abs_path = get_absolute_path_from_install_path(cmd.installPath)
drbdResource = drbd.DrbdResource(
self.get_name_from_installPath(cmd.installPath), False)
drbdResource.config.local_host.hostname = cmd.local_host_name
drbdResource.config.local_host.disk = install_abs_path
drbdResource.config.local_host.minor = cmd.local_host_port - DRBD_START_PORT
drbdResource.config.local_host.address = "%s:%s" % (
cmd.local_address, cmd.local_host_port)
drbdResource.config.remote_host.hostname = cmd.remote_host_name
drbdResource.config.remote_host.disk = install_abs_path
drbdResource.config.remote_host.minor = cmd.remote_host_port - DRBD_START_PORT
drbdResource.config.remote_host.address = "%s:%s" % (
cmd.remote_address, cmd.remote_host_port)
drbdResource.config.write_config()
try:
if cmd.backingFile:
backing_abs_path = get_absolute_path_from_install_path(
cmd.backingFile)
virtual_size = linux.qcow2_virtualsize(backing_abs_path)
lvm.create_lv_from_cmd(
install_abs_path, virtual_size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()),
False)
lvm.active_lv(install_abs_path)
drbdResource.initialize(cmd.init, cmd, backing_abs_path)
elif not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_cmd(
install_abs_path, cmd.size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()),
False)
lvm.active_lv(install_abs_path)
drbdResource.initialize(cmd.init, cmd)
except Exception as e:
drbdResource.destroy()
lvm.delete_lv(install_abs_path)
logger.debug(
'failed to create empty volume[uuid:%s, size:%s] at %s' %
(cmd.volumeUuid, cmd.size, cmd.installPath))
raise e
logger.debug(
'successfully create empty volume[uuid:%s, size:%s] at %s' %
(cmd.volumeUuid, cmd.size, cmd.installPath))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp._init_from_drbd(drbdResource)
return jsonobject.dumps(rsp)
def get_volume_size(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = GetVolumeSizeRsp()
install_abs_path = get_absolute_path_from_install_path(cmd.installPath)
r = drbd.DrbdResource(cmd.installPath.split("/")[-1])
with drbd.OperateDrbd(r):
rsp.size = linux.qcow2_virtualsize(r.get_dev_path())
rsp.actualSize = lvm.get_lv_size(install_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp._init_from_drbd(r)
return jsonobject.dumps(rsp)
def get_backing_chain(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = GetBackingChainRsp()
abs_path = translate_absolute_path_from_install_path(cmd.installPath)
with lvm.RecursiveOperateLv(abs_path,
shared=True,
skip_deactivate_tags=[IMAGE_TAG],
delete_when_exception=False):
rsp.backingChain = linux.qcow2_get_file_chain(abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def check_disks(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
for diskUuid in cmd.sharedBlockUuids:
disk = CheckDisk(diskUuid)
path = disk.get_path()
if cmd.rescan:
disk.rescan(path.split("/")[-1])
if cmd.vgUuid is not None and lvm.vg_exists(cmd.vgUuid):
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(
cmd.vgUuid, False)
return jsonobject.dumps(rsp)
def create_thin_pool_if_not_found(vgUuid, init_pool_ratio):
def round_sector(size, sector):
return round(float(size) / float(sector)) * sector
if lvm.lv_exists("/dev/%s/%s_thinpool" % (vgUuid, vgUuid)):
return
tot, avil = lvm.get_vg_size(vgUuid)
init_pool_size = float(tot) * float(init_pool_ratio)
# meta_size = "%s" % ((tot / DEFAULT_CHUNK_SIZE) * 48 * 2) # ref: https://www.kernel.org/doc/Documentation/device-mapper/thin-provisioning.txt
meta_size = 1024**3 # ref: https://www.systutorials.com/docs/linux/man/7-lvmthin/#lbBD
bash.bash_errorout(
"lvcreate --type thin-pool -L %sB -c %sB --poolmetadatasize %sB -n %s_thinpool %s"
% (int(round_sector(init_pool_size, 4096)), DEFAULT_CHUNK_SIZE,
meta_size, vgUuid, vgUuid))
def connect(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = ConnectRsp()
diskPaths = set()
def config_lvm(host_id):
lvm.backup_lvm_config()
lvm.reset_lvm_conf_default()
lvm.config_lvm_by_sed("use_lvmlockd", "use_lvmlockd=1", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("use_lvmetad", "use_lvmetad=0", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("host_id", "host_id=%s" % host_id, ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("sanlock_lv_extend", "sanlock_lv_extend=%s" % DEFAULT_SANLOCK_LV_SIZE, ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("lvmlockd_lock_retries", "lvmlockd_lock_retries=6", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("issue_discards", "issue_discards=1", ["lvm.conf", "lvmlocal.conf"])
lvm.config_lvm_by_sed("reserved_memory", "reserved_memory=65536", ["lvm.conf", "lvmlocal.conf"])
lvm.config_sanlock_by_sed("sh_retries", "sh_retries=20")
lvm.config_sanlock_by_sed("logfile_priority", "logfile_priority=7")
lvm.config_sanlock_by_sed("renewal_read_extend_sec", "renewal_read_extend_sec=24")
lvm.config_sanlock_by_sed("debug_renew", "debug_renew=1")
lvm.config_sanlock_by_sed("use_watchdog", "use_watchdog=0")
sanlock_hostname = "%s-%s-%s" % (cmd.vgUuid[:8], cmd.hostUuid[:8], bash.bash_o("hostname").strip()[:20])
lvm.config_sanlock_by_sed("our_host_name", "our_host_name=%s" % sanlock_hostname)
config_lvm(cmd.hostId)
for diskUuid in cmd.sharedBlockUuids:
disk = CheckDisk(diskUuid)
diskPaths.add(disk.get_path())
lvm.start_lvmlockd()
lvm.check_gl_lock()
logger.debug("find/create vg %s lock..." % cmd.vgUuid)
rsp.isFirst = self.create_vg_if_not_found(cmd.vgUuid, diskPaths, cmd.hostUuid, cmd.forceWipe)
lvm.check_stuck_vglk()
logger.debug("starting vg %s lock..." % cmd.vgUuid)
lvm.start_vg_lock(cmd.vgUuid)
if lvm.lvm_vgck(cmd.vgUuid, 15)[0] is False:
lvm.drop_vg_lock(cmd.vgUuid)
logger.debug("restarting vg %s lock..." % cmd.vgUuid)
lvm.check_gl_lock()
lvm.start_vg_lock(cmd.vgUuid)
lvm.clean_vg_exists_host_tags(cmd.vgUuid, cmd.hostUuid, HEARTBEAT_TAG)
lvm.add_vg_tag(cmd.vgUuid, "%s::%s::%s::%s" % (HEARTBEAT_TAG, cmd.hostUuid, time.time(), bash.bash_o('hostname').strip()))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp.hostId = lvm.get_running_host_id(cmd.vgUuid)
return jsonobject.dumps(rsp)
def delete_bits(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
if cmd.folder:
raise Exception("not support this operation")
install_abs_path = translate_absolute_path_from_install_path(cmd.path)
if lvm.has_lv_tag(install_abs_path, IMAGE_TAG):
logger.info('deleting lv image: ' + install_abs_path)
lvm.delete_image(install_abs_path, IMAGE_TAG)
else:
logger.info('deleting lv volume: ' + install_abs_path)
lvm.delete_lv(install_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def check_disks(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
if cmd.failIfNoPath:
CheckDisk.set_fail_if_no_path()
for diskUuid in cmd.sharedBlockUuids:
disk = CheckDisk(diskUuid)
path = disk.get_path()
if cmd.rescan:
disk.rescan(path.split("/")[-1])
if cmd.vgUuid is not None and lvm.vg_exists(cmd.vgUuid):
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid, False)
return jsonobject.dumps(rsp)
def add_disk(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
disk = CheckDisk(cmd.diskUuid)
command = shell.ShellCmd("vgs --nolocking %s -otags | grep %s" % (cmd.vgUuid, INIT_TAG))
command(is_exception=False)
if command.return_code != 0:
self.create_vg_if_not_found(cmd.vgUuid, [disk.get_path()], cmd.hostUuid, cmd.forceWipe)
else:
lvm.check_gl_lock()
if cmd.forceWipe is True:
lvm.wipe_fs([disk.get_path()], cmd.vgUuid)
lvm.add_pv(cmd.vgUuid, disk.get_path(), DEFAULT_VG_METADATA_SIZE)
rsp = AgentRsp
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def add_disk(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
disk = CheckDisk(cmd.diskUuid)
command = shell.ShellCmd("vgs %s -otags | grep %s" % (cmd.vgUuid, INIT_TAG))
command(is_exception=False)
if command.return_code != 0:
self.create_vg_if_not_found(cmd.vgUuid, [disk.get_path()], cmd.hostUuid, cmd.forceWipe)
else:
lvm.check_gl_lock()
if cmd.forceWipe is True:
lvm.wipe_fs([disk.get_path()], cmd.vgUuid)
lvm.add_pv(cmd.vgUuid, disk.get_path(), DEFAULT_VG_METADATA_SIZE)
rsp = AgentRsp
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def create_root_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
template_abs_path_cache = translate_absolute_path_from_install_path(cmd.templatePathInCache)
install_abs_path = translate_absolute_path_from_install_path(cmd.installPath)
qcow2_options = self.calc_qcow2_option(self, cmd.qcow2Options, True, cmd.provisioning)
with lvm.RecursiveOperateLv(template_abs_path_cache, shared=True, skip_deactivate_tags=[IMAGE_TAG]):
virtual_size = linux.qcow2_virtualsize(template_abs_path_cache)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_cmd(install_abs_path, virtual_size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path, shared=False, delete_when_exception=True):
linux.qcow2_clone_with_option(template_abs_path_cache, install_abs_path, qcow2_options)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def merge_snapshot(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = MergeSnapshotRsp()
snapshot_abs_path = translate_absolute_path_from_install_path(cmd.snapshotInstallPath)
workspace_abs_path = translate_absolute_path_from_install_path(cmd.workspaceInstallPath)
with lvm.RecursiveOperateLv(snapshot_abs_path, shared=True):
virtual_size = linux.qcow2_virtualsize(snapshot_abs_path)
if not lvm.lv_exists(workspace_abs_path):
lvm.create_lv_from_absolute_path(workspace_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(workspace_abs_path, shared=False, delete_when_exception=True):
linux.create_template(snapshot_abs_path, workspace_abs_path)
rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(workspace_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp.actualSize = rsp.size
return jsonobject.dumps(rsp)
def merge_snapshot(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = MergeSnapshotRsp()
snapshot_abs_path = translate_absolute_path_from_install_path(cmd.snapshotInstallPath)
workspace_abs_path = translate_absolute_path_from_install_path(cmd.workspaceInstallPath)
with lvm.RecursiveOperateLv(snapshot_abs_path, shared=True):
virtual_size = linux.qcow2_virtualsize(snapshot_abs_path)
if not lvm.lv_exists(workspace_abs_path):
lvm.create_lv_from_absolute_path(workspace_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(workspace_abs_path, shared=False, delete_when_exception=True):
linux.create_template(snapshot_abs_path, workspace_abs_path)
rsp.size, rsp.actualSize = linux.qcow2_size_and_actual_size(workspace_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp.actualSize = rsp.size
return jsonobject.dumps(rsp)
def create_root_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = VolumeRsp()
template_abs_path_cache = get_absolute_path_from_install_path(
cmd.templatePathInCache)
install_abs_path = get_absolute_path_from_install_path(cmd.installPath)
drbdResource = drbd.DrbdResource(
self.get_name_from_installPath(cmd.installPath), False)
drbdResource.config.local_host.hostname = cmd.local_host_name
drbdResource.config.local_host.disk = install_abs_path
drbdResource.config.local_host.minor = cmd.local_host_port - DRBD_START_PORT
drbdResource.config.local_host.address = "%s:%s" % (
cmd.local_address, cmd.local_host_port)
drbdResource.config.remote_host.hostname = cmd.remote_host_name
drbdResource.config.remote_host.disk = install_abs_path
drbdResource.config.remote_host.minor = cmd.remote_host_port - DRBD_START_PORT
drbdResource.config.remote_host.address = "%s:%s" % (
cmd.remote_address, cmd.remote_host_port)
drbdResource.config.write_config()
virtual_size = linux.qcow2_virtualsize(template_abs_path_cache)
try:
lvm.qcow2_lv_recursive_active(template_abs_path_cache,
lvm.LvmlockdLockType.SHARE)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_cmd(
install_abs_path, virtual_size, cmd,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()),
False)
lvm.active_lv(install_abs_path)
drbdResource.initialize(cmd.init, cmd, template_abs_path_cache)
except Exception as e:
drbdResource.destroy()
lvm.delete_lv(install_abs_path)
raise e
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
rsp._init_from_drbd(drbdResource)
return jsonobject.dumps(rsp)
def offline_merge_snapshots(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = OfflineMergeSnapshotRsp()
src_abs_path = translate_absolute_path_from_install_path(cmd.srcPath)
dst_abs_path = translate_absolute_path_from_install_path(cmd.destPath)
with lvm.RecursiveOperateLv(src_abs_path, shared=True):
virtual_size = linux.qcow2_virtualsize(src_abs_path)
if not lvm.lv_exists(dst_abs_path):
lvm.create_lv_from_absolute_path(
dst_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.RecursiveOperateLv(dst_abs_path, shared=False):
if not cmd.fullRebase:
linux.qcow2_rebase(src_abs_path, dst_abs_path)
else:
# TODO(weiw): add tmp disk and then rename is better
linux.create_template(src_abs_path, dst_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def collect_lvm_capacity_statistics():
metrics = {
'vg_size':
GaugeMetricFamily('vg_size', 'volume group size', None, ['vg_name']),
'vg_avail':
GaugeMetricFamily('vg_avail', 'volume group and thin pool free size',
None, ['vg_name']),
}
r, o, e = bash_roe("vgs --nolocking --noheading -oname")
if r != 0 or len(o.splitlines()) == 0:
return metrics.values()
vg_names = o.splitlines()
for name in vg_names:
name = name.strip()
size, avail = lvm.get_vg_size(name, False)
metrics['vg_size'].add_metric([name], float(size))
metrics['vg_avail'].add_metric([name], float(avail))
return metrics.values()
def convert_volume_provisioning(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = ConvertVolumeProvisioningRsp()
if cmd.provisioningStrategy != "ThinProvisioning":
raise NotImplementedError
abs_path = translate_absolute_path_from_install_path(cmd.installPath)
with lvm.RecursiveOperateLv(abs_path, shared=False):
image_offest = long(
bash.bash_o("qemu-img check %s | grep 'Image end offset' | awk -F ': ' '{print $2}'" % abs_path).strip())
current_size = long(lvm.get_lv_size(abs_path))
virtual_size = linux.qcow2_virtualsize(abs_path)
size = image_offest + cmd.addons[lvm.thinProvisioningInitializeSize]
if size > current_size:
size = current_size
if size > virtual_size:
size = virtual_size
lvm.resize_lv(abs_path, size, True)
rsp.actualSize = size
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def create_template_from_volume(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
volume_abs_path = translate_absolute_path_from_install_path(
cmd.volumePath)
install_abs_path = translate_absolute_path_from_install_path(
cmd.installPath)
with lvm.RecursiveOperateLv(volume_abs_path, shared=False):
virtual_size = linux.qcow2_virtualsize(volume_abs_path)
if not lvm.lv_exists(install_abs_path):
lvm.create_lv_from_absolute_path(
install_abs_path, virtual_size,
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
with lvm.OperateLv(install_abs_path,
shared=False,
delete_when_exception=True):
linux.create_template(volume_abs_path, install_abs_path)
logger.debug('successfully created template[%s] from volume[%s]' %
(cmd.installPath, cmd.volumePath))
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def collect_lvm_capacity_statistics():
metrics = {
'vg_size': GaugeMetricFamily('vg_size',
'volume group size', None, ['vg_name']),
'vg_avail': GaugeMetricFamily('vg_avail',
'volume group and thin pool free size', None, ['vg_name']),
}
r = bash_r("grep -Ev '^[[:space:]]*#|^[[:space:]]*$' /etc/multipath/wwids")
if r == 0:
linux.set_fail_if_no_path()
r, o, e = bash_roe("vgs --nolocking --noheading -oname")
if r != 0 or len(o.splitlines()) == 0:
return metrics.values()
vg_names = o.splitlines()
for name in vg_names:
name = name.strip()
size, avail = lvm.get_vg_size(name, False)
metrics['vg_size'].add_metric([name], float(size))
metrics['vg_avail'].add_metric([name], float(avail))
return metrics.values()
def migrate_volumes(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = AgentRsp()
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
current_abs_path = translate_absolute_path_from_install_path(struct.currentInstallPath)
with lvm.OperateLv(current_abs_path, shared=True):
lv_size = lvm.get_lv_size(current_abs_path)
if lvm.lv_exists(target_abs_path):
target_ps_uuid = get_primary_storage_uuid_from_install_path(struct.targetInstallPath)
raise Exception("found %s already exists on ps %s" %
(target_abs_path, target_ps_uuid))
lvm.create_lv_from_absolute_path(target_abs_path, lvm.getOriginalSize(lv_size),
"%s::%s::%s" % (VOLUME_TAG, cmd.hostUuid, time.time()))
lvm.active_lv(target_abs_path, lvm.LvmlockdLockType.SHARE)
try:
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
current_abs_path = translate_absolute_path_from_install_path(struct.currentInstallPath)
with lvm.OperateLv(current_abs_path, shared=True):
bash.bash_errorout("cp %s %s" % (current_abs_path, target_abs_path))
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
current_abs_path = translate_absolute_path_from_install_path(struct.currentInstallPath)
with lvm.RecursiveOperateLv(current_abs_path, shared=True):
previous_ps_uuid = get_primary_storage_uuid_from_install_path(struct.currentInstallPath)
target_ps_uuid = get_primary_storage_uuid_from_install_path(struct.targetInstallPath)
current_backing_file = linux.qcow2_get_backing_file(current_abs_path) # type: str
target_backing_file = current_backing_file.replace(previous_ps_uuid, target_ps_uuid)
if struct.compareQcow2:
logger.debug("comparing qcow2 between %s and %s" % (current_abs_path, target_abs_path))
if not self.compare(current_abs_path, target_abs_path):
raise Exception("qcow2 %s and %s are not identical" % (current_abs_path, target_abs_path))
logger.debug("confirmed qcow2 %s and %s are identical" % (current_abs_path, target_abs_path))
if current_backing_file is not None and current_backing_file != "":
lvm.do_active_lv(target_backing_file, lvm.LvmlockdLockType.SHARE, False)
logger.debug("rebase %s to %s" % (target_abs_path, target_backing_file))
linux.qcow2_rebase_no_check(target_backing_file, target_abs_path)
except Exception as e:
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
if struct.currentInstallPath == struct.targetInstallPath:
logger.debug("current install path %s equals target %s, skip to delete" %
(struct.currentInstallPath, struct.targetInstallPath))
else:
logger.debug("error happened, delete lv %s" % target_abs_path)
lvm.delete_lv(target_abs_path, False)
raise e
finally:
for struct in cmd.migrateVolumeStructs:
target_abs_path = translate_absolute_path_from_install_path(struct.targetInstallPath)
lvm.deactive_lv(target_abs_path)
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(cmd.vgUuid)
return jsonobject.dumps(rsp)
def active_lv(self, req):
cmd = jsonobject.loads(req[http.REQUEST_BODY])
rsp = ActiveRsp()
rsp.totalCapacity, rsp.availableCapacity = lvm.get_vg_size(
cmd.vgUuid, raise_exception=False)
install_abs_path = get_absolute_path_from_install_path(cmd.installPath)
if lvm.has_lv_tag(install_abs_path, IMAGE_TAG):
lvm.qcow2_lv_recursive_active(install_abs_path,
lvm.LvmlockdLockType.SHARE)
return jsonobject.dumps(rsp)
drbdResource = drbd.DrbdResource(
self.get_name_from_installPath(cmd.installPath))
if cmd.role == drbd.DrbdRole.Secondary:
drbdResource.demote()
rsp._init_from_drbd(drbdResource)
return jsonobject.dumps(rsp)
if self.test_network_ok_to_peer(drbdResource.config.remote_host.address.split(":")[0]) is False \
and mini_fencer.test_fencer(cmd.vgUuid, drbdResource.name) is False:
raise Exception("can not connect storage network or fencer")
if cmd.checkPeer and drbdResource.get_remote_role(
) == drbd.DrbdRole.Primary:
raise Exception("remote is also in primary role, can not promote")
if drbdResource.get_dstate() != "UpToDate":
raise Exception("local data is not uptodate, can not promote")
lvm.qcow2_lv_recursive_active(install_abs_path,
lvm.LvmlockdLockType.EXCLUSIVE)
try:
drbdResource.promote()
except Exception as e:
if not cmd.force:
raise e
if self.test_network_ok_to_peer(
drbdResource.config.remote_host.address.split(":")[0]):
raise Exception(
"storage network address %s still connected, wont force promote"
% drbdResource.config.remote_host.address.split(":")[0])
if cmd.vmNics:
for vmNic in cmd.vmNics:
if self.test_network_ok_to_peer(vmNic.ipAddress,
vmNic.bridgeName):
raise Exception(
"could arping %s via %s, it may split brain, wont proceed force promote"
% (vmNic.ipAddress, vmNic.bridgeName))
snap_path = None
try:
snap_path = lvm.create_lvm_snapshot(install_abs_path)
drbdResource.promote(True, 2, 2)
rsp.snapPath = snap_path
except Exception as ee:
if snap_path is not None:
lvm.delete_lv(snap_path)
raise ee
rsp._init_from_drbd(drbdResource)
return jsonobject.dumps(rsp)
