def rollbackLioAddLun(param):
"""lio中增加lun的回滚函数
@param param 存储了lio中增加lun的多个参数的一个列表
"""
osCmd = "lio_node --deliqn=%s" % param[0]
try:
runExec(osCmd)
except Exception, e:
VSLogger.error("rollback failed: run %s failed : %s " % (osCmd, repr(e)))
def purgeTarget(lvName, tpgt, suffix):
iqn = "test"
targetName = "%s:%d:%s" % (iqn, 123456, suffix)
handler = VSServiceHandler()
try:
handler.cleanTarget(lvName, targetName, tpgt)
print "purgeTarget success"
VSLogger.debug("purgeTarget success")
except Exception, e:
errMsg = traceback.format_exc()
VSLogger.critical(errMsg)
def rollbackTcmCreate(param):
"""定义创建lio中tcm后端存储的回滚操作
@param param 存储了创建lio中tcm的多个参数的一个列表
"""
lioCfgDir = "/sys/kernel/config/target/core/iblock_0/%s_%s" % (param[0], param[1])
if os.path.exists(lioCfgDir):
try:
osCmd = "tcm_node --freedev iblock_0/%s_%s" % (param[0], param[1])
runExec(osCmd)
except Exception, e:
VSLogger.error("rollback tcm_node %s_%s failed: %s " % (param[0], param[1], str(e)))
def detachLV(self, lvName):
"""服务接口，卸载逻辑卷
@param lvName 逻辑卷名称
"""
VSLogger.debug("Detach LV(%s) begin..." % (lvName))
try:
self.__purgeAttachLV(lvName)
except Exception, e:
errMsg = traceback.format_exc()
VSLogger.error(errMsg)
raise VSException(-1, getExceptionErrorMessage(e))
def startTarget(lvName, tpgt, lun, suffix):
initiatorName = "iqn.1993-08.org.debian:01:5c487996fda6"
iqn = "test"
targetName = "%s:%d:%s" % (iqn, 123456, suffix)
handler = VSServiceHandler()
try:
handler.sendTarget(lvName, tpgt, lun, initiatorName, suffix)
print "sendTarget success"
VSLogger.debug("sendTarget success")
# time.sleep(1)
# handler.cleanTarget(lvName,targetName)
except Exception, e:
handler.cleanTarget(lvName, targetName, tpgt)
handler.sendTarget(lvName, tpgt, lun, initiatorName, suffix)
errMsg = traceback.format_exc()
VSLogger.critical(errMsg)
def sendTarget(self, lvName, tpgt, lun, initiatorName, suffix):
"""服务接口，挂载逻辑卷
@param lvName 输出target
@param initiatorName 允许访问此逻辑卷的iscsi initor的名称
@return 返回一个TargetInfo的结构体
"""
VSLogger.info("Call interface attachLV(%s, %s)..." % (lvName, initiatorName))
try:
rollback = VSActionRollback()
actionTcmCreate(rollback, ("test", lvName))
# iqn = dnsName2IQN(VSConfig.getHost())
iqn = "test"
# targetName = "%s:%d:%s" % (iqn, time.time() * 1000, lvName)
targetName = "%s:%d:%s" % (iqn, 123456, suffix)
targetInfo = TargetInfo()
targetInfo.targetName = targetName
# targetInfo.targetPort = VSConfig.getIscsiPort()
targetInfo.chapUser = "******"
# targetInfo.chapPass = getRandomPass()
targetInfo.chapPass = "******"
# "lio_node --addlun %s 1 0 iscsi00 iblock_0/%s_%s" %(targetName, VSConfig.getVgName(), lvName)
actionLioAddLun(rollback, (targetName, tpgt, lun, "test", lvName))
# --addnp=TARGET_IQN TPGT IP:PORT
osCmd = "lio_node --addnp %s %d %s:%d" % (targetName, tpgt, "0.0.0.0", 3260)
runExec(osCmd)
# --enableauth=TARGET_IQN TPGT
osCmd = "lio_node --enableauth %s %d" % (targetName, tpgt)
runExec(osCmd)
# lio_node --addlunacl <TargetIQN> <TPG#> <InitiatorIQN> <LUN#> <MappedLUN#>
osCmd = "lio_node --addlunacl %s %d %s %d 0" % (targetName, tpgt, initiatorName, lun)
runExec(osCmd)
# lio_node --setchapauth <TargetIQN> <TPG#><InitiatorIQN> <LoginName> <Password>
osCmd = "lio_node --setchapauth %s %d %s %s %s" % (
targetName,
tpgt,
initiatorName,
targetInfo.chapUser,
targetInfo.chapPass,
)
runExec(osCmd)
# --settpgattr=TARGET_IQN TPGT <ATTRIB> <VALUE>
osCmd = "lio_node --settpgattr=%s %d cache_dynamic_acls 0" % (targetName, tpgt)
runExec(osCmd)
# --enabletpg=TARGET_IQN TPGT
osCmd = "lio_node --enabletpg %s %d" % (targetName, tpgt)
runExec(osCmd)
print "sendTarget success"
VSLogger.info("sendTarget success")
except Exception, e:
errMsg = traceback.format_exc()
rollback.rollback()
VSLogger.error(errMsg)
raise VSException(-1, getExceptionErrorMessage(e))
def cleanTarget(self, lvName, targetName, tpgt):
# 先后顺序很重要，
self.purgeIqn(targetName, tpgt)
VSLogger.info("purgeIqn success")
print "purgeIqn success"
self.purgeTcm(lvName)
VSLogger.debug("purgeTcm success")
print "purgeTcm success"
self.purgeIscsi(targetName)
VSLogger.debug("purgeIscsi success")
print "purgeIscsi success"
return targetInfo
def detachLV(self, lvName):
"""服务接口，卸载逻辑卷
@param lvName 逻辑卷名称
"""
VSLogger.debug("Detach LV(%s) begin..." % (lvName))
try:
self.__purgeAttachLV(lvName)
except Exception, e:
errMsg = traceback.format_exc()
VSLogger.error(errMsg)
raise VSException(-1, getExceptionErrorMessage(e))
VSLogger.info("Successfully detach LV %s." % (lvName))
def cleanTarget(self, lvName, targetName, tpgt):
# 先后顺序很重要，
self.purgeIqn(targetName, tpgt)
VSLogger.info("purgeIqn success")
print "purgeIqn success"
self.purgeTcm(lvName)
VSLogger.debug("purgeTcm success")
print "purgeTcm success"
self.purgeIscsi(targetName)
VSLogger.debug("purgeIscsi success")
print "purgeIscsi success"
def startTarget(lvName, tpgt, lun, suffix):
